{
  "city": "tokyo",
  "country": "Japan",
  "collected": "2026-10-15",
  "updated": "2026-10-15",
  "license": "CC BY 4.0",
  "cards": [
    {
      "slug": "chess-center-ueno",
      "name": "Chess Center UENO",
      "name_local": null,
      "kind": "club",
      "sections": [
        "play"
      ],
      "municipality": "Taitō",
      "address": "東京都台東区北上野2-11-3 シルバーフラット101",
      "district": "Kita-Ueno",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "registration_required",
        "src": 3
      },
      "cost": {
        "value": "paid",
        "amount": "500 yen per session, tax included",
        "src": 1
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": true,
        "adults_only": null,
        "languages": [],
        "src": 4
      },
      "formats": [
        "casual"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [
          "kids_classes"
        ],
        "ages": "elementary school students (Spring Chess School)",
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 8
      },
      "sessions": [
        {
          "organiser": "Chess Center UENO",
          "weekday": "Thu",
          "time": "17:00-22:00",
          "note": "Open play; last entry 21:30; ticket bought in advance on the venue's ticket page; staff will play a visitor who comes alone.",
          "live_page": "https://japanchess.org/chess-center-ueno/",
          "src": 0
        },
        {
          "organiser": "Chess Center UENO",
          "weekday": "Sat",
          "time": "12:00-17:00",
          "note": "Open play; last entry 16:30; ticket bought in advance.",
          "live_page": "https://japanchess.org/chess-center-ueno/",
          "src": 0
        },
        {
          "organiser": "Chess Center UENO",
          "weekday": "Sun",
          "time": "12:00-17:00",
          "note": "Open play; last entry 16:30; ticket bought in advance.",
          "live_page": "https://japanchess.org/chess-center-ueno/",
          "src": 0
        },
        {
          "organiser": "Japan Chess Federation",
          "weekday": "Sun",
          "time": null,
          "note": "Rookies Time: an unrated beginners' experience day of three games at 15 minutes plus 10 seconds, in a morning and an afternoon part, on a Sunday of every even-numbered month.",
          "live_page": "https://japanchess.org/tournament-information-2026/",
          "src": 6
        }
      ],
      "status": {
        "value": "active",
        "evidence": "The federation's page for the space gives its opening days (Thursday, Saturday and Sunday) and prices; entry is by tickets per time slot, bought in advance. Its Rookies Time beginners' day was dated 12 October 2026 at the venue, and a monthly beginners' meeting (Hiyoko Chess Club) is dated 18 October, 15 November and 20 December 2026. A three-day Spring Chess School for elementary school pupils (afternoons of 20, 21 and 22 March 2026) and a beginners' introduction on 29 April 2026 were held at the space.",
        "evidence_date": "2026-10-18",
        "moved_to": null,
        "src": 5
      },
      "contacts": {
        "website": "https://japanchess.org/chess-center-ueno/",
        "email": "info.chesscenterueno@gmail.com",
        "phone": null,
        "social": [
          "https://x.com/ChessCenterUENO"
        ]
      },
      "sources": [
        {
          "url": "https://japanchess.org/chess-center-ueno/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "毎週木曜日と土曜日と日曜日にオープン。"
        },
        {
          "url": "https://japanchess.org/chess-center-ueno/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "利用料金： 各曜日500円（税込）"
        },
        {
          "url": "https://japanchess.org/chess-center-ueno/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "場所： 東京都台東区北上野2-11-3 シルバーフラット101"
        },
        {
          "url": "https://japanchess.org/chess-center-ueno/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "来場したい日時のチケットを事前にご購入ください。"
        },
        {
          "url": "https://japanchess.org/chess-center-ueno/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "未成年者は保護者1名のみ無料で付き添うことができます"
        },
        {
          "url": "https://japanchess.org/2026/09/12/rookies-time-2026-10/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場： Chess Center UENO"
        },
        {
          "url": "https://japanchess.org/2026/02/20/rookies-2026-4/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "偶数月の日曜日、Chess Center UENO"
        },
        {
          "url": "https://japanchess.org/2026/09/18/hiyoko-chess2026-10-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "10月18日（日）、11月15日（日）、12月20日（日）"
        },
        {
          "url": "https://japanchess.org/en/2026/02/10/spring-chess-school-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Elementary school students who are annual members of the Japan Chess Federation"
        },
        {
          "url": "https://japanchess.org/en/2026/03/24/lets-play-chess-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Those with no experience or beginners, as well as parent-child pairs, are welcome."
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "koenji-chess-club",
      "name": "Koenji Chess Club",
      "name_local": "高円寺チェスクラブ",
      "kind": "club",
      "sections": [
        "play",
        "community"
      ],
      "municipality": "Suginami",
      "address": "4 Chome-25-8 Koenjiminami, Suginami City, Tokyo 166-0003",
      "district": "Kōenji",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "open_to_all",
        "src": 3
      },
      "cost": {
        "value": "paid",
        "amount": "500 yen entry plus one drink order",
        "src": 1
      },
      "equipment": {
        "boards": "provided",
        "clocks": "provided",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 4
      },
      "audience": {
        "beginners_welcome": true,
        "kids": null,
        "adults_only": null,
        "languages": [
          "English",
          "Japanese"
        ],
        "src": 5
      },
      "formats": [
        "casual"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 6
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [
        {
          "organiser": "Koenji Chess Club",
          "weekday": "Wed",
          "time": "18:00-22:00",
          "note": "First and third Wednesday of the month at The Den (a burger and craft beer bar), on the 3rd floor; entry 500 yen plus one drink; players come and go at any time.",
          "live_page": "https://www.meetup.com/koenjichess/",
          "src": 0
        }
      ],
      "status": {
        "value": "active",
        "evidence": "The Meetup group lists meetings dated 21 October 2026 and 4 November 2026, and its past events include Wednesday meetings of 16 September and 7 October. The federation announced the club as registered in July 2025.",
        "evidence_date": "2026-10-21",
        "moved_to": null,
        "src": 8
      },
      "contacts": {
        "website": "https://www.meetup.com/koenjichess/",
        "email": null,
        "phone": null,
        "social": [
          "Instagram @koenji.chess"
        ]
      },
      "sources": [
        {
          "url": "https://www.meetup.com/koenjichess/",
          "kind": "meetup",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Every 1st and 3rd Wednesday of the month."
        },
        {
          "url": "https://www.meetup.com/koenjichess/",
          "kind": "meetup",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "500 yen entry + 1 drink order."
        },
        {
          "url": "https://www.meetup.com/koenjichess/",
          "kind": "meetup",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Meeting at The Den in Koenji from 6 PM to 10 PM"
        },
        {
          "url": "https://www.meetup.com/koenjichess/",
          "kind": "meetup",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "No registration required, all levels welcome."
        },
        {
          "url": "https://www.meetup.com/koenjichess/",
          "kind": "meetup",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "10+ tournament-style vinyl boards with triple-weighted pieces"
        },
        {
          "url": "https://www.meetup.com/koenjichess/",
          "kind": "meetup",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "with like-minded people in English or Japanese"
        },
        {
          "url": "https://www.meetup.com/koenjichess/",
          "kind": "meetup",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "An officially recognized chess club by the Japan Chess Federation!"
        },
        {
          "url": "https://japanchess.org/2025/07/01/new-registered-clubs/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "主な活動場所: The Den（東京都杉並区）"
        },
        {
          "url": "https://www.meetup.com/topics/chess/jp/tokyo/",
          "kind": "meetup",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Chess in Koenji on Wednesday"
        }
      ]
    },
    {
      "slug": "tokyo-check-mates",
      "name": "Tokyo Check Mates",
      "name_local": null,
      "kind": "group",
      "sections": [
        "play",
        "community"
      ],
      "municipality": "Shibuya",
      "address": "3F Shin-Iwasaki bldg., 30-4 Udagawa-cho, Shibuya-ku, Tokyo, 150-0042",
      "district": "Udagawachō",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "guests_welcome",
        "src": 3
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": true,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 3
      },
      "formats": [
        "rapid",
        "blitz"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 6
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [
        {
          "organiser": "Tokyo Check Mates",
          "weekday": "Wed",
          "time": "19:30",
          "note": "Weekly rapid and blitz games at The Aldgate British Pub; the site gives a start time only.",
          "live_page": "https://tokyocheckmates.com/en/about",
          "src": 0
        }
      ],
      "status": {
        "value": "active",
        "evidence": "The club site gives a weekly Wednesday meeting at The Aldgate pub. A Tokyo Check Mates 2026 Spring Blitz Tournament is dated 25 March 2026 on the tournament server, with the playing place printed there as Shibuya, Tokyo. The pub's address is taken from a Tokyo guide page for a pub of that name; the club's own page prints no address.",
        "evidence_date": "2026-03-25",
        "moved_to": null,
        "src": 5
      },
      "contacts": {
        "website": "https://tokyocheckmates.com/en/about",
        "email": null,
        "phone": null,
        "social": [
          "https://www.chess.com/club/tokyo-check-mates",
          "https://lichess.org/team/tokyo-check-mates"
        ]
      },
      "sources": [
        {
          "url": "https://tokyocheckmates.com/en/about",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Time: Every Wednesday from 19:30"
        },
        {
          "url": "https://tokyocheckmates.com/en/about",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Location: THE ALDGATE British Pub"
        },
        {
          "url": "https://tokyocheckmates.com/en/about",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "We gather every week to enjoy friendly rapid and blitz games"
        },
        {
          "url": "https://tokyocheckmates.com/en/about",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Whether you're a seasoned player or just starting out, come join us"
        },
        {
          "url": "https://trulytokyo.com/the-aldgate/",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "3F Shin-Iwasaki bldg., 30-4 Udagawa-cho, Shibuya-ku, Tokyo, 150-0042"
        },
        {
          "url": "https://chess-results.com/tnr1379644.aspx?lan=1",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Tokyo Check Mates 2026 Spring Blitz Tournament"
        },
        {
          "url": "https://japanchess.org/en/registered-clubs/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Tokyo Check Mates"
        }
      ]
    },
    {
      "slug": "tokyo-knight-life",
      "name": "Tokyo Knight Life",
      "name_local": null,
      "kind": "club",
      "sections": [
        "play"
      ],
      "municipality": "Setagaya",
      "address": null,
      "district": null,
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "unconfirmed",
        "evidence": "The federation announced the club as newly registered on 1 October 2026 and names Good Heavens, a bar in Setagaya ward, as its main place of activity. No schedule or dated chess evening was found, and the club has no page of its own naming the bar's address, so the address is left empty.",
        "evidence_date": "2026-10-01",
        "moved_to": null,
        "src": 0
      },
      "contacts": {
        "website": null,
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/en/2026/10/01/new-registered-clubs-6/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Place: Good Heavens (Setagaya, Tokyo)"
        },
        {
          "url": "https://japanchess.org/2026/10/01/new-registered-clubs-5/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "主な活動場所: Good Heavens（東京都世田谷区）"
        },
        {
          "url": "https://tokyocheapo.com/restaurant/good-heavens-british-bar-tokyo/",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "2F, 5-32-5 Daizawa, Setagaya-ku Tokyo"
        }
      ]
    },
    {
      "slug": "akabane-chess-club",
      "name": "Akabane Chess Club",
      "name_local": "赤羽チェスクラブ",
      "kind": "club",
      "sections": [
        "play"
      ],
      "municipality": "Kita",
      "address": null,
      "district": "Akabane",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "rapid",
        "classical",
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The club's own site states that it organises chess tournaments and FIDE-rated events in and around Akabane in Kita ward. Its newest dated activity apart from its FIDE Rapid series is the Northern Tokyo Chess Championship of 15 March 2026, which it organised at Hokutopia in Kita ward. The club's regular meeting place and days were not found.",
        "evidence_date": "2026-03-15",
        "moved_to": null,
        "src": 4
      },
      "contacts": {
        "website": "https://akabanechessclub.jp/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/clublist/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "赤羽チェスクラブ"
        },
        {
          "url": "https://japanchess.org/2026/08/21/5th-akabane-chess-club-fide-rapid-tournament-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "主催： 赤羽チェスクラブ"
        },
        {
          "url": "https://japanchess.org/2026/08/21/5th-akabane-chess-club-fide-rapid-tournament-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場： 北とぴあ（東京都北区）"
        },
        {
          "url": "https://japanchess.org/2026/08/21/5th-akabane-chess-club-fide-rapid-tournament-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "日程： 2026年10月12日（月祝）"
        },
        {
          "url": "https://japanchess.org/qualifying-tournaments-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場: 北とぴあ （東京都北区）"
        },
        {
          "url": "https://akabanechessclub.jp/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "赤羽チェスクラブは、東京都北区・赤羽周辺を拠点に"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "nakano-chess-club",
      "name": "Nakano Chess Club",
      "name_local": "中野チェスクラブ",
      "kind": "club",
      "sections": [
        "play"
      ],
      "municipality": "Nakano",
      "address": null,
      "district": null,
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "rapid",
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The club organised the Western Tokyo Team Rapid Chess Championship on 29 April 2026 at the Nakano ward office and the Western Tokyo Chess Championship of 18 January 2026 at the same building. A year-end tournament in December 2024 was held at Nakano ZERO hall. The club's regular meeting evenings were not found.",
        "evidence_date": "2026-04-29",
        "moved_to": null,
        "src": 2
      },
      "contacts": {
        "website": null,
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/clublist/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "中野チェスクラブ"
        },
        {
          "url": "https://japanchess.org/2026/03/28/western-tokyo-team-rapid-championship-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "主催： 中野チェスクラブ"
        },
        {
          "url": "https://japanchess.org/2026/03/28/western-tokyo-team-rapid-championship-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場： 中野区役所 ミーティングルーム A、B (東京都中野区)"
        },
        {
          "url": "https://japanchess.org/qualifying-tournaments-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場: 中野区役所（東京都中野区）"
        },
        {
          "url": "https://japanchess.org/2024/11/10/nakano-chess-club-year-end-tournament-2024/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場： 中野ZEROホール 西館 2F 学習室A、B"
        }
      ]
    },
    {
      "slug": "machida-chess-club",
      "name": "Machida Chess Club",
      "name_local": "町田チェスクラブ",
      "kind": "club",
      "sections": [
        "play"
      ],
      "municipality": "Machida",
      "address": null,
      "district": null,
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "both",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": true,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 2
      },
      "formats": [
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 3
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [
        {
          "organiser": "Machida Chess Club",
          "weekday": "irregular",
          "time": null,
          "note": "Twice a month at Machida Chuo Kominkan (community hall); dates are posted on the club's X account.",
          "live_page": "https://sites.google.com/view/machidachessclub/",
          "src": 1
        },
        {
          "organiser": "Machida Chess Club",
          "weekday": "irregular",
          "time": null,
          "note": "Once a month in Yoyogi Park in spring and autumn only (\"park chess\", outdoors).",
          "live_page": "https://sites.google.com/view/machidachessclub/",
          "src": 1
        }
      ],
      "status": {
        "value": "active",
        "evidence": "The club organised the Machida Summer Rapid Open on 5 July 2026 and the Machida Silver Week Open from 19 to 21 September 2026 (its last round moved to 12 October 2026 after a typhoon). Its own site states two meetings a month at a community hall in Machida and, in spring and autumn, one a month in Yoyogi Park.",
        "evidence_date": "2026-10-12",
        "moved_to": null,
        "src": 5
      },
      "contacts": {
        "website": "https://sites.google.com/view/machidachessclub/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://sites.google.com/view/machidachessclub/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "町田チェスクラブは東京都町田市で活動しているチェスクラブです。"
        },
        {
          "url": "https://sites.google.com/view/machidachessclub/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "「まちだ中央公民館」で月2回、「代々木公園」で月1回"
        },
        {
          "url": "https://sites.google.com/view/machidachessclub/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "初めてチェスをやる人、初心者の方に優しいチェスクラブです。"
        },
        {
          "url": "https://japanchess.org/clublist/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "町田チェスクラブ"
        },
        {
          "url": "https://japanchess.org/2024/10/31/new-clubs-machida-kawagoe-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "主な活動場所: 町田市立町田第一中学校"
        },
        {
          "url": "https://japanchess.org/2026/05/25/machida-summer-rapid-open-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場： 町田市生涯学習センター 7階イベントホール（東京都町田市）"
        },
        {
          "url": "https://japanchess.org/2026/05/25/machida-summer-rapid-open-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "主催： 町田チェスクラブ"
        },
        {
          "url": "https://japanchess.org/2026/06/06/machida-silver-week-open-2026-3/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場： 町田市民ホール（東京都町田市）"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "yokogawa-chess-club",
      "name": "YOKOGAWA Chess Club",
      "name_local": "横河電機チェス同好会",
      "kind": "club",
      "sections": [
        "play"
      ],
      "municipality": "Musashino",
      "address": null,
      "district": null,
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "unconfirmed",
        "evidence": "The federation announced the club as newly registered on 1 June 2026, with the head office of Yokogawa Electric in Musashino as its main place of activity. Who may attend was not stated and no schedule or dated chess evening was found.",
        "evidence_date": "2026-06-01",
        "moved_to": null,
        "src": 0
      },
      "contacts": {
        "website": null,
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/2026/06/01/new-registered-clubs-4-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "主な活動場所: 横河電機本社（東京都武蔵野市）"
        },
        {
          "url": "https://japanchess.org/clublist/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "横河電機チェス同好会"
        }
      ]
    },
    {
      "slug": "divine-chess-gurukul",
      "name": "Divine Chess Gurukul",
      "name_local": null,
      "kind": "club",
      "sections": [
        "play"
      ],
      "municipality": "Edogawa",
      "address": null,
      "district": null,
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "blitz",
        "rapid",
        "classical",
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The newest dated trace is a club internal classical event of 27 October 2025 on the tournament server. Before it, the federation's 2025 domestic calendar lists the club's KBGM blitz, rapid and classical events on weekends from 10 May to 29 June 2025, and the club hosted an East Tokyo Chess Championship on 20 March 2025; the playing places printed there are in Edogawa ward (Rinkaicho Community Hall and Seishincho). The club is still on the federation's club list of 1 October 2026, but no 2026 event, own page or schedule was found.",
        "evidence_date": "2025-10-27",
        "moved_to": null,
        "src": 2
      },
      "contacts": {
        "website": null,
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/clublist/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Divine Chess Gurukul"
        },
        {
          "url": "https://japanchess.org/tournament-2025/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Divine Chess Gurukul’s KBGM May-10-2025 Rapid"
        },
        {
          "url": "https://chess-results.com/tnr1282451.aspx?lan=1",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Divine Chess Gurukul Internal Classical 10-27-2025"
        },
        {
          "url": "https://chess-results.com/tnr1136573.aspx?lan=1",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Divine Chess Gurukul - East Tokyo Chess Championship"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "tokyo-bilingual-chess-school",
      "name": "Tokyo Bilingual Chess School",
      "name_local": "東京バイリンガルチェススクール",
      "kind": "academy",
      "sections": [
        "learn"
      ],
      "municipality": "Shinagawa",
      "address": null,
      "district": "Ōsaki",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "registration_required",
        "src": 7
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": true,
        "kids": true,
        "adults_only": null,
        "languages": [],
        "src": 4
      },
      "formats": [
        "lessons"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [
          "group_classes",
          "kids_classes",
          "camps",
          "school_programs"
        ],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 3
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 3
      },
      "sessions": [
        {
          "organiser": "Tokyo Bilingual Chess School",
          "weekday": "Sat",
          "time": "10:30-11:30",
          "note": "Chess Sapiens course (intermediate), Osaki, Shinagawa, two minutes on foot from JR Osaki station.",
          "live_page": "https://tokyobilingualchessclub.jimdofree.com/programs/group/lessons/",
          "src": 8
        },
        {
          "organiser": "Tokyo Bilingual Chess School",
          "weekday": "Sat",
          "time": "17:30-18:30",
          "note": "Chess Sapiens course and a further intermediate course, Minami-Azabu, Minato; the exact place is given on registration.",
          "live_page": "https://tokyobilingualchessclub.jimdofree.com/programs/group/lessons/",
          "src": 9
        },
        {
          "organiser": "Tokyo Bilingual Chess School",
          "weekday": "Sat",
          "time": "09:30-10:15",
          "note": "Baby Steps on Chess (complete beginners, kindergarten age), Osaki, Shinagawa.",
          "live_page": "https://tokyobilingualchessclub.jimdofree.com/programs/group/lessons/",
          "src": 10
        },
        {
          "organiser": "Tokyo Bilingual Chess School",
          "weekday": "Sun",
          "time": "10:30-11:30",
          "note": "Chess Crash Course, Osaki, Shinagawa.",
          "live_page": "https://tokyobilingualchessclub.jimdofree.com/programs/group/lessons/",
          "src": 11
        },
        {
          "organiser": "Tokyo Bilingual Chess School",
          "weekday": "Sun",
          "time": "09:30-10:30",
          "note": "Chess for Rookies (beginners), Osaki, Shinagawa.",
          "live_page": "https://tokyobilingualchessclub.jimdofree.com/programs/group/lessons/",
          "src": 12
        },
        {
          "organiser": "Tokyo Bilingual Chess School",
          "weekday": "Sun",
          "time": "16:00-17:00",
          "note": "Chess for Rookies (beginners), Minami-Azabu, Minato; the exact place is given on registration.",
          "live_page": "https://tokyobilingualchessclub.jimdofree.com/programs/group/lessons/",
          "src": 13
        },
        {
          "organiser": "Tokyo Bilingual Chess School",
          "weekday": "Tue",
          "time": "17:30-18:30",
          "note": "Chess Leaps course (advanced), Minami-Azabu, Minato.",
          "live_page": "https://tokyobilingualchessclub.jimdofree.com/programs/group/lessons/",
          "src": 14
        },
        {
          "organiser": "Tokyo Bilingual Chess School",
          "weekday": "Fri",
          "time": "17:30-18:30",
          "note": "Chess Mates course, Minami-Azabu, Minato; the exact place is given on registration.",
          "live_page": "https://tokyobilingualchessclub.jimdofree.com/programs/group/lessons/",
          "src": 15
        }
      ],
      "status": {
        "value": "active",
        "evidence": "The school's own site reports its Team Championship results in a post dated 11 October 2026, a school chess camp held on 25 July 2026, and a timetable of weekly group lessons at two places: Ōsaki in Shinagawa ward and Minami-Azabu in Minato ward. The site also lists school chess programmes at four international schools. The company behind the school has its seat in Itabashi ward; the lessons are not held there.",
        "evidence_date": "2026-10-11",
        "moved_to": null,
        "src": 2
      },
      "contacts": {
        "website": "https://tokyobilingualchessclub.jimdofree.com/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/clublist/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "東京バイリンガルチェススクール"
        },
        {
          "url": "https://japanchess.org/en/registered-clubs/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Tokyo Bilingual Chess School"
        },
        {
          "url": "https://tokyobilingualchessclub.jimdofree.com/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "2026 Team Championship Results"
        },
        {
          "url": "https://tokyobilingualchessclub.jimdofree.com/programs/group/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "The TBCC offers group classes covering a wide range of subjects and skill levels."
        },
        {
          "url": "https://tokyobilingualchessclub.jimdofree.com/programs/group/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "keep even the youngest players (kindergarteners) interested."
        },
        {
          "url": "https://tokyobilingualchessclub.jimdofree.com/camp/2026-summer-camp/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Summer Fiesta Chess Camp - 7/25/2026"
        },
        {
          "url": "https://tokyobilingualchessclub.jimdofree.com/programs/afterschool/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "The TBCC currently offers chess programs at the following schools:"
        },
        {
          "url": "https://tokyobilingualchessclub.jimdofree.com/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "APPLICATION FORM"
        },
        {
          "url": "https://tokyobilingualchessclub.jimdofree.com/programs/group/lessons/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "SATURDAYS, 10:30-11:30"
        },
        {
          "url": "https://tokyobilingualchessclub.jimdofree.com/programs/group/lessons/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "SATURDAYS, 17:30-18:30"
        },
        {
          "url": "https://tokyobilingualchessclub.jimdofree.com/programs/group/lessons/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "SATURDAYS, 9:30-10:15"
        },
        {
          "url": "https://tokyobilingualchessclub.jimdofree.com/programs/group/lessons/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "SUNDAYS, 10:30-11:30"
        },
        {
          "url": "https://tokyobilingualchessclub.jimdofree.com/programs/group/lessons/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "SUNDAYS, 9:30-10:30"
        },
        {
          "url": "https://tokyobilingualchessclub.jimdofree.com/programs/group/lessons/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "SUNDAYS, 16:00-17:00"
        },
        {
          "url": "https://tokyobilingualchessclub.jimdofree.com/programs/group/lessons/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "TUESDAYS, 17:30-18:30"
        },
        {
          "url": "https://tokyobilingualchessclub.jimdofree.com/programs/group/lessons/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "FRIDAYS, 17:30-18:30"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "8x8-chess-club",
      "name": "8×8 Chess Club",
      "name_local": "8×8チェスクラブ",
      "kind": "club",
      "sections": [
        "play",
        "community"
      ],
      "municipality": "Minato",
      "address": null,
      "district": "Azabu-Jūban",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "registration_required",
        "src": 5
      },
      "cost": {
        "value": "paid",
        "amount": "500 yen per person, free the first time",
        "src": 3
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": true,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 4
      },
      "formats": [],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [
        {
          "organiser": "8×8 Chess Club",
          "weekday": "irregular",
          "time": "13:30-16:30",
          "note": "Monthly regular meeting, usually on a Sunday afternoon, with 12 to 20 places and sign-up through an online form; the hall changes from month to month (Minami-Azabu Ikiiki Plaza in Minato, Kyobashi in Chūō); bring your own board, pieces and clock if you have them.",
          "live_page": "https://8by8.hatenablog.com/",
          "src": 7
        }
      ],
      "status": {
        "value": "active",
        "evidence": "The club's own blog posted the October 2026 meeting notice on 2 October 2026 and marked the meeting as full, after notices for June to September 2026 held in a community hall in Minami-Azabu. The blog says the club is based mainly in Azabu-Jūban.",
        "evidence_date": "2026-10-02",
        "moved_to": null,
        "src": 6
      },
      "contacts": {
        "website": "https://8by8.hatenablog.com/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/clublist/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "8×8チェスクラブ"
        },
        {
          "url": "https://japanchess.org/en/registered-clubs/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "8×8 Chess Club"
        },
        {
          "url": "https://8by8.hatenablog.com/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "東京都内、主に麻布十番を拠点に活動しています。"
        },
        {
          "url": "https://8by8.hatenablog.com/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "参加費: 1人500円 (初回無料)"
        },
        {
          "url": "https://8by8.hatenablog.com/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "初心者から中級者を中心としたチェスのサークルです。"
        },
        {
          "url": "https://8by8.hatenablog.com/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "参加の際は、"
        },
        {
          "url": "https://8by8.hatenablog.com/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "10月例会は定員に達しました"
        },
        {
          "url": "https://8by8.hatenablog.com/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "場所: 南麻布いきいきプラザ集会室B(洋室)"
        }
      ]
    },
    {
      "slug": "meiwa-kids",
      "name": "MeiWa Kids",
      "name_local": null,
      "kind": "club",
      "sections": [
        "play"
      ],
      "municipality": "Kōtō",
      "address": null,
      "district": "Kameido",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "unknown",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "unconfirmed",
        "evidence": "The federation announced the club as newly registered on 1 March 2026, with Kameido in Kōtō ward as its main place of activity. No page of its own, schedule or dated chess evening was found.",
        "evidence_date": "2026-03-01",
        "moved_to": null,
        "src": 0
      },
      "contacts": {
        "website": null,
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/2026/03/01/new-registered-clubs-3-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "主な活動場所: 東京都江東区亀戸"
        },
        {
          "url": "https://japanchess.org/clublist/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "MeiWa Kids"
        }
      ]
    },
    {
      "slug": "japan-kaz-chess-academy",
      "name": "Japan-Kaz Chess Academy",
      "name_local": null,
      "kind": "club",
      "sections": [
        "play"
      ],
      "municipality": "Minato",
      "address": null,
      "district": null,
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "unknown",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "unconfirmed",
        "evidence": "The federation announced the club as newly registered on 10 September 2026, with Minato ward as its main place of activity. No page of its own, address, schedule or dated trace was found.",
        "evidence_date": "2026-09-10",
        "moved_to": null,
        "src": 0
      },
      "contacts": {
        "website": null,
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/2026/09/10/new-registered-club/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "主な活動場所: 東京都港区"
        },
        {
          "url": "https://japanchess.org/clublist/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Japan-Kaz Chess Academy"
        }
      ]
    },
    {
      "slug": "kamata-chess-club",
      "name": "Kamata Chess Club",
      "name_local": "蒲田チェスクラブ",
      "kind": "club",
      "sections": [
        "play"
      ],
      "municipality": "Ōta",
      "address": null,
      "district": "Kamata",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "unknown",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "unconfirmed",
        "evidence": "The federation announced the club as newly registered in September 2023. It is not on the federation's club list updated on 1 October 2026, and no page of its own or dated trace was found. A chess blog article of 31 May 2026 says the club is no longer federation-registered and that its activity appears set to continue; it gives no meeting date.",
        "evidence_date": "2023-09-01",
        "moved_to": null,
        "src": 0
      },
      "contacts": {
        "website": null,
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/2023/09/01/newly-accredited-club-kamata-chess-club/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "2023年9月より、新たに一つのチェスクラブを公認しました。"
        },
        {
          "url": "https://japanchess.org/2023/09/01/newly-accredited-club-kamata-chess-club/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "・蒲田チェスクラブ"
        },
        {
          "url": "https://e-and-a-chess.com/?p=2961",
          "kind": "forum",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "現在は公認クラブではなくなりましたが、活動は継続見込みのようです。"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "chiba-chess-club",
      "name": "Chiba Chess Club",
      "name_local": "千葉チェスクラブ",
      "kind": "club",
      "sections": [
        "play",
        "learn"
      ],
      "municipality": "Kashiwa",
      "address": null,
      "district": null,
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "paid",
        "amount": "2,500 yen per class (1,500 yen for high school age and younger)",
        "src": 3
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "lessons",
        "rapid",
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 4
      },
      "training": {
        "offers": [
          "group_classes",
          "kids_classes",
          "adult_classes"
        ],
        "ages": null,
        "languages": [],
        "price": {
          "value": "published",
          "amount": "2,500 yen per class; 1,500 yen for high school students and younger",
          "src": 3
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 1
      },
      "sessions": [
        {
          "organiser": "Chiba Chess Club",
          "weekday": "irregular",
          "time": null,
          "note": "Beginner classes in Kashiwa at the Kashiwa Chuo Kominkan; the club site lists the dates for the year.",
          "live_page": "https://chiba-chess-club.com/%e3%83%81%e3%82%a7%e3%82%b9%e6%95%99%e5%ae%a4/",
          "src": 1
        },
        {
          "organiser": "Chiba Chess Club",
          "weekday": "irregular",
          "time": null,
          "note": "Beginner classes in Matsudo at the Matsudo labour hall, run jointly with another club; the site lists the dates for the year.",
          "live_page": "https://chiba-chess-club.com/%e3%83%81%e3%82%a7%e3%82%b9%e6%95%99%e5%ae%a4/",
          "src": 2
        }
      ],
      "status": {
        "value": "active",
        "evidence": "The club's site lists its beginner classes: in Kashiwa on 3 and 31 October 2026, and in Matsudo, run jointly with another club, on 4 October and 29 November 2026. It also organised the Chiba Chess Championship of 28 and 29 March 2026 in Kashiwa.",
        "evidence_date": "2026-11-29",
        "moved_to": null,
        "src": 1
      },
      "contacts": {
        "website": "https://chiba-chess-club.com/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://chiba-chess-club.com/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "第32回千葉チェスFesta in柏"
        },
        {
          "url": "https://chiba-chess-club.com/%e3%83%81%e3%82%a7%e3%82%b9%e6%95%99%e5%ae%a4/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "☆チェス教室を新たに柏に開きました。"
        },
        {
          "url": "https://chiba-chess-club.com/%e3%83%81%e3%82%a7%e3%82%b9%e6%95%99%e5%ae%a4/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "松戸教室 の スケジュール（2026年）"
        },
        {
          "url": "https://chiba-chess-club.com/%e3%83%81%e3%82%a7%e3%82%b9%e6%95%99%e5%ae%a4/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "2,500円 （高校生以下 1,500円 ）"
        },
        {
          "url": "https://japanchess.org/clublist/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "千葉チェスクラブ"
        },
        {
          "url": "https://japanchess.org/qualifying-tournaments-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場: 柏市中央公民館(千葉県柏市)"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "yokohama-chess-club",
      "name": "Yokohama Chess Club",
      "name_local": "横浜チェスクラブ",
      "kind": "club",
      "sections": [
        "play",
        "learn"
      ],
      "municipality": "Yokohama",
      "address": "231-0023 神奈川県横浜市中区山下町225−1",
      "district": "Yamashitachō",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "open_to_all",
        "src": 5
      },
      "cost": {
        "value": "paid",
        "amount": "1,500 yen per meeting",
        "src": 3
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": true,
        "kids": true,
        "adults_only": null,
        "languages": [],
        "src": 5
      },
      "formats": [
        "casual",
        "lessons"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [
          "kids_classes",
          "group_classes"
        ],
        "ages": null,
        "languages": [],
        "price": {
          "value": "published",
          "amount": "1,500 yen per class; 2,000 yen for two siblings",
          "src": 9
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 7
      },
      "sessions": [
        {
          "organiser": "Yokohama Chess Club",
          "weekday": "Sat",
          "time": "13:00-18:00",
          "note": "Regular meeting twice a month on Saturday afternoons in the café space of the YWCA Yokohama; no sign-up needed; a half-hour beginners' lecture is given shortly after 13:00.",
          "live_page": "https://yokohama-chess-club.com/category/chess-tournament/",
          "src": 2
        },
        {
          "organiser": "Yokohama Chess Club",
          "weekday": "irregular",
          "time": null,
          "note": "Monthly children's chess class at the Yokohama Skills and Culture Hall in Naka ward, with a beginners' class and an experienced class at 1,500 yen each; application through the club's form.",
          "live_page": "https://yokohama-chess-club.com/category/child-class-news/",
          "src": 8
        }
      ],
      "status": {
        "value": "active",
        "evidence": "The club's own site announced the October 2026 children's class in a post dated 1 October 2026 and the September and October regular meetings in a post dated 24 August 2026; the meetings are held at the café space of the YWCA Yokohama in Naka ward.",
        "evidence_date": "2026-10-01",
        "moved_to": null,
        "src": 7
      },
      "contacts": {
        "website": "https://yokohama-chess-club.com/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/clublist/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "横浜チェスクラブ"
        },
        {
          "url": "https://japanchess.org/en/registered-clubs/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Yokohama Chess Club"
        },
        {
          "url": "https://yokohama-chess-club.com/1363/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "【時間】13:00-18:00"
        },
        {
          "url": "https://yokohama-chess-club.com/1363/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "【参加費】1500円"
        },
        {
          "url": "https://yokohama-chess-club.com/1363/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "【場所】YWCA横浜 カフェスペース 〒231-0023 神奈川県横浜市中区山下町225−1"
        },
        {
          "url": "https://yokohama-chess-club.com/1363/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "どなたでも気軽に参加していただけます。"
        },
        {
          "url": "https://yokohama-chess-club.com/page-8/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "月に２回の例会を行っています。"
        },
        {
          "url": "https://yokohama-chess-club.com/1371/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "10月もチェス教室を開催します"
        },
        {
          "url": "https://yokohama-chess-club.com/1371/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "横浜市技能文化会館 7階 〒231-0031 神奈川県横浜市中区万代町2丁目4−7"
        },
        {
          "url": "https://yokohama-chess-club.com/1371/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "初心者クラス：1,500円 経験者クラス：1,500円"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "kawasaki-chess-club",
      "name": "Kawasaki Chess Club",
      "name_local": "川崎チェスクラブ",
      "kind": "club",
      "sections": [
        "play"
      ],
      "municipality": "Yokohama",
      "address": null,
      "district": "Yakō",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "paid",
        "amount": "500 yen, free for students",
        "src": 3
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": true,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 6
      },
      "formats": [
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [
        {
          "organiser": "Kawasaki Chess Club",
          "weekday": "irregular",
          "time": "13:15-17:00",
          "note": "Monthly regular meeting, on a Saturday or Sunday, at the Yakō district centre in Tsurumi ward, Yokohama; free play, study and exchange; entry and exit at any time.",
          "live_page": "https://yasux.com/activity/",
          "src": 4
        }
      ],
      "status": {
        "value": "active",
        "evidence": "The club's own site (schedule page updated at the end of December 2025) lists its monthly meetings for 24 January and 15 February 2026 at the Yakō district centre, which the federation places in Tsurumi ward, Yokohama. The federation lists the club as organiser of the Kanagawa Chess Championship of 29 March 2026 at the same centre. The club is named after Kawasaki, where it held its autumn 2025 tournament, but it is shown under Yokohama because its regular meetings are at a Tsurumi ward centre.",
        "evidence_date": "2026-03-29",
        "moved_to": null,
        "src": 1
      },
      "contacts": {
        "website": "https://yasux.com/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/clublist/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "川崎チェスクラブ"
        },
        {
          "url": "https://japanchess.org/qualifying-tournaments-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場: 矢向地区センター (神奈川県横浜市鶴見区)"
        },
        {
          "url": "https://chess-results.com/tnr1374487.aspx?lan=1",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Kanagawa Chess Championship 2026"
        },
        {
          "url": "https://yasux.com/activity/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "例会の時間は 13:15~17:00 、参加費は500円（学生無料）です。"
        },
        {
          "url": "https://yasux.com/activity/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "矢向地区センター"
        },
        {
          "url": "https://yasux.com/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "現在、月１回を基本として例会を開催しています。"
        },
        {
          "url": "https://yasux.com/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "チェスを始めたての方からトーナメントプレイヤーまで、幅広い参加者が特徴です。"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "tokyo-chess-go-board-game-meetup",
      "name": "Tokyo Chess Go board game meetup",
      "name_local": null,
      "kind": "group",
      "sections": [
        "play",
        "community"
      ],
      "municipality": "Chiyoda",
      "address": null,
      "district": "Jinbōchō",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": true,
        "kids": null,
        "adults_only": null,
        "languages": [
          "English",
          "Japanese"
        ],
        "src": 1
      },
      "formats": [
        "casual",
        "lessons"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": null,
        "body": null,
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [
        {
          "organiser": "Tokyo Chess Go board game meetup",
          "weekday": "Sat",
          "time": "13:00",
          "note": "Casual beginner-friendly sessions at the Jimbocho Igo Club, on Saturdays at 13:00.",
          "live_page": "https://www.meetup.com/tokyo-chess-go-meetup/",
          "src": 3
        }
      ],
      "status": {
        "value": "active",
        "evidence": "The Meetup group lists past events on Saturday 6 December 2025, 17 January 2026 and 14 March 2026 at the Jimbocho Igo Club in Chiyoda ward. No later or upcoming event was listed when the page was read.",
        "evidence_date": "2026-03-14",
        "moved_to": null,
        "src": 2
      },
      "contacts": {
        "website": "https://www.meetup.com/tokyo-chess-go-meetup/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://www.meetup.com/tokyo-chess-go-meetup/",
          "kind": "meetup",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Location: Jimbocho Igo Club (神保町囲碁クラブ)"
        },
        {
          "url": "https://www.meetup.com/tokyo-chess-go-meetup/",
          "kind": "meetup",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Language: English and Japanese support available"
        },
        {
          "url": "https://www.meetup.com/tokyo-chess-go-meetup/",
          "kind": "meetup",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Casual Tokyo Chess & Go Meetup in Jinbocho (Beginner-Friendly!)"
        },
        {
          "url": "https://www.meetup.com/tokyo-chess-go-meetup/",
          "kind": "meetup",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "We hold regular sessions where you can:"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "tuesday-chess-shogi-party",
      "name": "Tuesday Chess + Shogi Party",
      "name_local": null,
      "kind": "group",
      "sections": [
        "play",
        "community"
      ],
      "municipality": "Chiyoda",
      "address": "3-chōme-1 Kanda Ogawamachi, Chiyoda City, Tokyo",
      "district": "Kanda-Ogawamachi",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "open_to_all",
        "src": 5
      },
      "cost": {
        "value": "purchase_expected",
        "amount": "Free entry; one drink order required, from 500 yen",
        "src": 3
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "casual"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": null,
        "body": null,
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [
        {
          "organiser": "Tokyo Board Game Meetup, hosted at English Only Cafe",
          "weekday": "Tue",
          "time": "19:00-21:00",
          "note": "Weekly chess night with shogi and xiangqi also on offer; free entry, one drink order required.",
          "live_page": "https://www.meetup.com/tbgmeetup/",
          "src": 0
        }
      ],
      "status": {
        "value": "active",
        "evidence": "The Meetup event page lists the party for Tuesday 20 October 2026, 19:00 to 21:00, repeating every week until 24 July 2027; the group's page also lists a session on Tuesday 13 October with six attendees.",
        "evidence_date": "2026-10-20",
        "moved_to": null,
        "src": 0
      },
      "contacts": {
        "website": "https://www.meetup.com/tbgmeetup/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://www.meetup.com/tbgmeetup/events/316777244/",
          "kind": "meetup",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Every week on Tuesday until July 24, 2027"
        },
        {
          "url": "https://www.meetup.com/tbgmeetup/events/316777244/",
          "kind": "meetup",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Every Tuesday is Chess Day!"
        },
        {
          "url": "https://www.meetup.com/tbgmeetup/events/316777244/",
          "kind": "meetup",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Participation Fee: *FREE* (Regardless of nationality or gender)"
        },
        {
          "url": "https://www.meetup.com/tbgmeetup/events/316777244/",
          "kind": "meetup",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "One drink order is required (from 500 JPY)"
        },
        {
          "url": "https://www.meetup.com/tbgmeetup/events/316777244/",
          "kind": "meetup",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "3-chōme-1 Kanda Ogawamachi, Chiyoda City"
        },
        {
          "url": "https://www.meetup.com/tbgmeetup/events/316777244/",
          "kind": "meetup",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Seating is open, so solo participants are very welcome."
        }
      ]
    },
    {
      "slug": "science-tokyo-chesstech",
      "name": "ChessTech",
      "name_local": "東京科学大学 ChessTech",
      "kind": "club",
      "sections": [
        "play"
      ],
      "municipality": "Meguro",
      "address": null,
      "district": "Ōokayama",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "guests_welcome",
        "src": 1
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "rapid"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "学生チェス連盟 (Student Chess Federation)",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [
        {
          "organiser": "ChessTech",
          "weekday": "Thu",
          "time": null,
          "note": "Club activity twice a week (Thursday and Friday), as stated on the federation's university club list.",
          "live_page": "https://japanchess.org/jccf_circle/",
          "src": 2
        },
        {
          "organiser": "ChessTech",
          "weekday": "Fri",
          "time": null,
          "note": "Second weekly club day (Thursday and Friday), as above.",
          "live_page": "https://japanchess.org/jccf_circle/",
          "src": 2
        }
      ],
      "status": {
        "value": "active",
        "evidence": "ChessTech is the chess club of Science Tokyo (Institute of Science Tokyo, Ōokayama campus in Meguro ward). The tournament server lists a club internal match dated 18 July 2026 at Ōokayama and the 2nd Science Tokyo Rapid Chess Tournament of 19 October 2025 organised by the club. The federation's university list (updated 25 September 2025) gives two club days a week.",
        "evidence_date": "2026-07-18",
        "moved_to": null,
        "src": 4
      },
      "contacts": {
        "website": null,
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/jccf_circle/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "東京科学大学 ChessTech"
        },
        {
          "url": "https://japanchess.org/jccf_circle/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "お近くの方は気軽に参加してください。"
        },
        {
          "url": "https://japanchess.org/jccf_circle/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "週二回（木・金）"
        },
        {
          "url": "https://chess-results.com/tnr1264106.aspx?lan=1",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "2nd Science Tokyo Rapid Chess Tournament"
        },
        {
          "url": "https://chess-results.com/tnr1458430.aspx?lan=1",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "部内戦at科学大2026"
        },
        {
          "url": "https://en.wikipedia.org/wiki/Institute_of_Science_Tokyo",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "The main campus is located in Ookayama, Meguro"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "level-up-chess-tournament",
      "name": "Level-Up Chess Tournament",
      "name_local": "レベルアップチェス大会",
      "kind": "tournament",
      "sections": [
        "play"
      ],
      "municipality": "Shinagawa",
      "address": "東京都品川区東大井5-18-1",
      "district": "Ōimachi",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "registration_required",
        "src": 4
      },
      "cost": {
        "value": "paid",
        "amount": "3,500 yen (November 2026 edition, tax included)",
        "src": 7
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "rapid",
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The federation holds the Level-Up Chess Tournament several times a year for players rated under 1800 (under 2000 in November) in the Shinagawa ward public hall. Editions are dated 11 February, 24 May and 1 August 2026, and another is dated 14 November 2026; the 2025 calendar lists editions on 25 May, 7 September and 30 November 2025.",
        "evidence_date": "2026-11-14",
        "moved_to": null,
        "src": 5
      },
      "contacts": {
        "website": "https://japanchess.org/tournament-information-2026/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/2026/03/24/level-up-2026-05-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場名： きゅりあん（品川区総合区民会館）"
        },
        {
          "url": "https://japanchess.org/2026/03/24/level-up-2026-05-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "東京都品川区東大井5-18-1"
        },
        {
          "url": "https://japanchess.org/2026/03/24/level-up-2026-05-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "形式： 5Rスイス式、持ち時間15分+10秒/手、国内ラピッド公式戦"
        },
        {
          "url": "https://japanchess.org/2026/03/24/level-up-2026-05-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "参加条件： 国内ラピッドレーティングが1800未満の日本チェス連盟会員"
        },
        {
          "url": "https://japanchess.org/2026/03/24/level-up-2026-05-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "日本チェス連盟未入会の場合はまずPeatixでチケット購入"
        },
        {
          "url": "https://japanchess.org/2026/06/10/level-up-2026-08-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "開催日： 2026年8月1日（土）"
        },
        {
          "url": "https://japanchess.org/2026/09/26/level-up-2026-11/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "開催日： 2026年11月14日（土）"
        },
        {
          "url": "https://japanchess.org/2026/09/26/level-up-2026-11/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "参加費： 3,500円（税込み）"
        },
        {
          "url": "https://japanchess.org/2025/12/19/level-up-2026-02/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "開催日： 2026年2月11日(水・祝)"
        },
        {
          "url": "https://japanchess.org/tournament-2025/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "レベルアップチェス大会 2025/09"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "golden-week-open",
      "name": "Golden Week Open",
      "name_local": "ゴールデンウィークオープン",
      "kind": "tournament",
      "sections": [
        "play"
      ],
      "municipality": "Shinagawa",
      "address": "東京都品川区東大井5-18-1",
      "district": "Ōimachi",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "registration_required",
        "src": 4
      },
      "cost": {
        "value": "paid",
        "amount": "10,000 yen for JCF annual members (7,000 yen for under 22), tax included",
        "src": 3
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "classical",
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The 2026 edition was dated 4 to 6 May 2026 in the Shinagawa ward public hall (FIDE and national rated, 90 minutes plus 30 seconds per move). A 2025 edition is listed on the tournament server and the FIDE list of rated tournaments for Tokyo, dated 4 May 2025.",
        "evidence_date": "2026-05-04",
        "moved_to": null,
        "src": 5
      },
      "contacts": {
        "website": "https://japanchess.org/2026/03/01/gwo2026/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/2026/03/01/gwo2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場 ： きゅりあん（品川区総合区民会館）"
        },
        {
          "url": "https://japanchess.org/2026/03/01/gwo2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "東京都品川区東大井5-18-1"
        },
        {
          "url": "https://japanchess.org/2026/03/01/gwo2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "持ち時間90分+30秒/手、FIDE・国内スタンダード公式戦"
        },
        {
          "url": "https://japanchess.org/2026/03/01/gwo2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "日本チェス連盟年会員 10,000円（税込）"
        },
        {
          "url": "https://japanchess.org/2026/03/01/gwo2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "申込方法： 申込期間内に[ Peatix ]にて購入"
        },
        {
          "url": "https://japanchess.org/2026/03/01/gwo2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "2026年5月4日(月・祝) ～ 2026年5月6日(水・祝)"
        },
        {
          "url": "https://chess-results.com/tnr1132016.aspx?lan=1",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Golden Week Open 2025"
        }
      ]
    },
    {
      "slug": "japan-chess-championship",
      "name": "Japan Chess Championship (Argentina Cup)",
      "name_local": "全日本チェス選手権",
      "kind": "tournament",
      "sections": [
        "play"
      ],
      "municipality": "Shinagawa",
      "address": "東京都品川区東大井5-18-1",
      "district": "Ōimachi",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "registration_required",
        "src": 4
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "classical",
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The 27th edition (Argentina Cup) was dated 2 to 6 May 2026 in the Shinagawa ward public hall; entry was for annual federation members seeded for the championship. A 2025 edition is listed on the tournament server for Tokyo.",
        "evidence_date": "2026-05-02",
        "moved_to": null,
        "src": 2
      },
      "contacts": {
        "website": "https://japanchess.org/2026/03/11/japan-championship-2026-2/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/2026/03/11/japan-championship-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場 ： きゅりあん（品川区総合区民会館）"
        },
        {
          "url": "https://japanchess.org/2026/03/11/japan-championship-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "東京都品川区東大井5-18-1"
        },
        {
          "url": "https://japanchess.org/2026/03/11/japan-championship-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "2026年5月2日(土) ～ 2026年5月6日(水・祝)"
        },
        {
          "url": "https://japanchess.org/2026/03/11/japan-championship-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "全日本チェス選手権2026のシード選手であること"
        },
        {
          "url": "https://japanchess.org/2026/03/11/japan-championship-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "申込方法： 申込期間内にPeatixにて購入"
        },
        {
          "url": "https://chess-results.com/tnr1132007.aspx?lan=1",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Japan Chess Championship 2025"
        }
      ]
    },
    {
      "slug": "japan-rapid-chess-championship",
      "name": "Japan Rapid Chess Championship",
      "name_local": "全日本ラピッドチェス選手権",
      "kind": "tournament",
      "sections": [
        "play"
      ],
      "municipality": "Shinagawa",
      "address": "東京都品川区東大井5-18-1",
      "district": "Ōimachi",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "registration_required",
        "src": 4
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "rapid",
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The 2026 edition is dated 24 and 25 October 2026 in the Shinagawa ward public hall, for annual federation members. The 2025 edition is listed on the tournament server for Tokyo, dated 7 and 8 June 2025.",
        "evidence_date": "2026-10-24",
        "moved_to": null,
        "src": 2
      },
      "contacts": {
        "website": "https://japanchess.org/2026/08/28/rapid-2026/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/2026/08/28/rapid-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場 ： きゅりあん（品川区総合区民会館）"
        },
        {
          "url": "https://japanchess.org/2026/08/28/rapid-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "東京都品川区東大井5-18-1"
        },
        {
          "url": "https://japanchess.org/2026/08/28/rapid-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "2026年10月24日（土） ～ 2026年10月25日（日）"
        },
        {
          "url": "https://japanchess.org/2026/08/28/rapid-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "参加資格 ： 日本チェス連盟年会員"
        },
        {
          "url": "https://japanchess.org/2026/08/28/rapid-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "申込方法 ： [ Peatix ]にて購入"
        },
        {
          "url": "https://chess-results.com/tnr1176027.aspx?lan=1",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Japan Rapid Chess Championship 2025"
        }
      ]
    },
    {
      "slug": "japan-team-chess-championship",
      "name": "Japan Team Chess Championship",
      "name_local": "全日本チームチェス選手権",
      "kind": "tournament",
      "sections": [
        "play"
      ],
      "municipality": "Shinagawa",
      "address": "東京都品川区東大井5-18-1",
      "district": "Ōimachi",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "registration_required",
        "src": 4
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "rapid",
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The 2026 edition was dated 10 and 11 October 2026 in the Shinagawa ward public hall (teams of four, six rounds). The 2025 edition is listed on the tournament server for Tokyo, dated 1 and 2 November 2025.",
        "evidence_date": "2026-10-10",
        "moved_to": null,
        "src": 2
      },
      "contacts": {
        "website": "https://japanchess.org/2026/08/15/teamchampionship2026-2/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/2026/08/15/teamchampionship2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場 ： きゅりあん（品川区総合区民会館）"
        },
        {
          "url": "https://japanchess.org/2026/08/15/teamchampionship2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "東京都品川区東大井5-18-1"
        },
        {
          "url": "https://japanchess.org/2026/08/15/teamchampionship2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "2026年10月10日（土）～ 2026年10月11日（日）"
        },
        {
          "url": "https://japanchess.org/2026/08/15/teamchampionship2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "4人1組チーム戦、6Rスイス、持ち時間30分+30秒/手"
        },
        {
          "url": "https://japanchess.org/2026/08/15/teamchampionship2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "申込方法 ： [ Peatix ]にて購入"
        },
        {
          "url": "https://chess-results.com/tnr1252471.aspx?lan=1",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Japan Team Chess Championship 2025"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "japan-youth-chess-championship",
      "name": "Japan Youth Chess Championship",
      "name_local": "全日本ユースチェス選手権",
      "kind": "tournament",
      "sections": [
        "play"
      ],
      "municipality": "Shinagawa",
      "address": "東京都品川区東大井5-18-1",
      "district": "Ōimachi",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "registration_required",
        "src": 4
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": true,
        "adults_only": null,
        "languages": [],
        "src": 3
      },
      "formats": [
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The 2026 edition was dated 4 and 5 April 2026 in the Shinagawa ward public hall, for federation members under 18 on 31 December 2025. The 2025 edition is listed on the tournament server for Tokyo, dated 5 and 6 April 2025.",
        "evidence_date": "2026-04-04",
        "moved_to": null,
        "src": 2
      },
      "contacts": {
        "website": "https://japanchess.org/2026/02/06/youth-2026-2/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/2026/02/06/youth-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場 ： きゅりあん（品川区総合区民会館）"
        },
        {
          "url": "https://japanchess.org/2026/02/06/youth-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "東京都品川区東大井5-18-1"
        },
        {
          "url": "https://japanchess.org/2026/02/06/youth-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "開催日 ： 2026年4月4日(土) ～ 2026年4月5日(日)"
        },
        {
          "url": "https://japanchess.org/2026/02/06/youth-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "2025年12月31日時点で18歳未満の日本チェス連盟の年会員"
        },
        {
          "url": "https://japanchess.org/2026/02/06/youth-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "申込方法： 申込期間内に[ Peatix ]にて購入"
        },
        {
          "url": "https://chess-results.com/tnr1124419.aspx?lan=1",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Japan Youth Chess Championship 2025"
        }
      ]
    },
    {
      "slug": "japan-cadets-chess-championship",
      "name": "Japan Cadets Chess Championship",
      "name_local": "全日本カデッツチェス選手権",
      "kind": "tournament",
      "sections": [
        "play"
      ],
      "municipality": "Shinagawa",
      "address": "東京都品川区東大井5-18-1",
      "district": "Ōimachi",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "registration_required",
        "src": 4
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": true,
        "adults_only": null,
        "languages": [],
        "src": 4
      },
      "formats": [
        "rapid",
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The 2026 edition was dated 4 and 5 April 2026 in the Shinagawa ward public hall, for federation members under 12 on 31 December 2025. The 2025 edition is listed on the tournament server for Tokyo, dated 5 and 6 April 2025.",
        "evidence_date": "2026-04-04",
        "moved_to": null,
        "src": 2
      },
      "contacts": {
        "website": "https://japanchess.org/2026/02/06/cadets-2026-2/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/2026/02/06/cadets-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場 ： きゅりあん（品川区総合区民会館）"
        },
        {
          "url": "https://japanchess.org/2026/02/06/cadets-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "東京都品川区東大井5-18-1"
        },
        {
          "url": "https://japanchess.org/2026/02/06/cadets-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "開催日 ： 2026年4月4日(土) ～ 2026年4月5日(日)"
        },
        {
          "url": "https://japanchess.org/2026/02/06/cadets-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "スイス式7ラウンド、持ち時間30分+15秒/手"
        },
        {
          "url": "https://japanchess.org/2026/02/06/cadets-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "2025年12月31日時点で12歳未満の日本チェス連盟の年会員"
        },
        {
          "url": "https://chess-results.com/tnr1124448.aspx?lan=1",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Japan Cadets Chess Championship 2025"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "japan-womens-chess-championship",
      "name": "Japan Women's Chess Championship",
      "name_local": "全日本女子チェス選手権",
      "kind": "tournament",
      "sections": [
        "play"
      ],
      "municipality": "Shinagawa",
      "address": "東京都品川区東大井5-18-1",
      "district": "Ōimachi",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "registration_required",
        "src": 4
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "classical",
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The 2026 edition was dated 19 and 20 July 2026 in the Shinagawa ward public hall, for women who are annual federation members. The 2025 edition was dated 16 and 17 August 2025 at the same hall.",
        "evidence_date": "2026-07-19",
        "moved_to": null,
        "src": 2
      },
      "contacts": {
        "website": "https://japanchess.org/2026/05/26/women-championship-2026/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/2026/05/26/women-championship-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場 ： きゅりあん（品川区総合区民会館）"
        },
        {
          "url": "https://japanchess.org/2026/05/26/women-championship-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "東京都品川区東大井5-18-1"
        },
        {
          "url": "https://japanchess.org/2026/05/26/women-championship-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "2026年7月19日（日） ～ 2026年7月20日（月・祝）"
        },
        {
          "url": "https://japanchess.org/2026/05/26/women-championship-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "参加資格 ： 日本チェス連盟年会員（女性）"
        },
        {
          "url": "https://japanchess.org/2026/05/26/women-championship-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "申込方法 ： [ Peatix ]にて購入"
        },
        {
          "url": "https://japanchess.org/2025/07/03/womens-championship-2025/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "開催日：2025年8月16日(土)～2025年8月17日(日)"
        }
      ]
    },
    {
      "slug": "japan-senior-chess-championship",
      "name": "Japan Senior Chess Championship",
      "name_local": "全日本シニアチェス選手権",
      "kind": "tournament",
      "sections": [
        "play"
      ],
      "municipality": "Shinagawa",
      "address": "東京都品川区東大井5-18-1",
      "district": "Ōimachi",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "registration_required",
        "src": 4
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "classical",
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The 2026 edition was dated 19 and 20 July 2026 in the Shinagawa ward public hall, for annual federation members aged 50 or over at the end of 2026. The 2025 edition is listed on the tournament server for Tokyo, dated 16 and 17 August 2025.",
        "evidence_date": "2026-07-19",
        "moved_to": null,
        "src": 2
      },
      "contacts": {
        "website": "https://japanchess.org/2026/05/26/senior-championship-2026-2/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/2026/05/26/senior-championship-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場 ： きゅりあん（品川区総合区民会館）"
        },
        {
          "url": "https://japanchess.org/2026/05/26/senior-championship-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "東京都品川区東大井5-18-1"
        },
        {
          "url": "https://japanchess.org/2026/05/26/senior-championship-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "2026年7月19日（日） ～ 2026年7月20日（月・祝）"
        },
        {
          "url": "https://japanchess.org/2026/05/26/senior-championship-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "2026年12月31日時点で50歳以上である日本チェス連盟年会員"
        },
        {
          "url": "https://japanchess.org/2026/05/26/senior-championship-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "申込方法 ： [ Peatix ]にて購入"
        },
        {
          "url": "https://chess-results.com/tnr1211405.aspx?lan=1",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Japan Senior Chess Championship 2025"
        }
      ]
    },
    {
      "slug": "christmas-chess-party",
      "name": "Christmas Chess Party",
      "name_local": "クリスマスチェスパーティ",
      "kind": "tournament",
      "sections": [
        "play"
      ],
      "municipality": "Shinagawa",
      "address": "東京都品川区東大井5-18-1",
      "district": "Ōimachi",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "registration_required",
        "src": 4
      },
      "cost": {
        "value": "paid",
        "amount": "3,500 yen (2025 edition)",
        "src": 4
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "rapid",
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The 2025 edition was dated 14 December 2025 in the Shinagawa ward public hall. The federation's 2026 calendar lists a Christmas Chess Party on 12 December 2026 at the same hall.",
        "evidence_date": "2026-12-12",
        "moved_to": null,
        "src": 2
      },
      "contacts": {
        "website": "https://japanchess.org/tournament-information-2026/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/2025/10/14/christmas-chess-2025/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場名： きゅりあん（品川区総合区民会館）"
        },
        {
          "url": "https://japanchess.org/2025/10/14/christmas-chess-2025/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "東京都品川区東大井5-18-1"
        },
        {
          "url": "https://japanchess.org/2025/10/14/christmas-chess-2025/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "開催日： 2025年12月14日(日)"
        },
        {
          "url": "https://japanchess.org/2025/10/14/christmas-chess-2025/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "形式： 5Rスイス式、持ち時間15分+10秒/手、国内ラピッド公式戦"
        },
        {
          "url": "https://japanchess.org/2025/10/14/christmas-chess-2025/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "参加費： 3,500円"
        },
        {
          "url": "https://japanchess.org/tournament-information-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "きゅりあん、東京都品川区"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "summer-kids-chess-tournament",
      "name": "Summer Kids Chess Tournament",
      "name_local": "夏休み子どもチェス大会",
      "kind": "tournament",
      "sections": [
        "play"
      ],
      "municipality": "Shibuya",
      "address": "東京都渋谷区代々木神園町3-1",
      "district": "Yoyogi",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "registration_required",
        "src": 0
      },
      "cost": {
        "value": "paid",
        "amount": "3,500 yen (2026 edition, tax included)",
        "src": 3
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": true,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "rapid",
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The 2026 edition was dated 23 August 2026 at the National Olympics Memorial Youth Center in Shibuya ward. The 2025 edition is listed on the tournament server for Tokyo, dated 23 August 2025, with the venue printed there as a different hall in Tokyo.",
        "evidence_date": "2026-08-23",
        "moved_to": null,
        "src": 2
      },
      "contacts": {
        "website": "https://japanchess.org/2026/07/03/kids-summer-2026-2/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/2026/07/03/kids-summer-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場 ： 国立オリンピック記念青少年総合センター"
        },
        {
          "url": "https://japanchess.org/2026/07/03/kids-summer-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "東京都渋谷区代々木神園町3-1"
        },
        {
          "url": "https://japanchess.org/2026/07/03/kids-summer-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "開催日 ： 2026年8月23日（日）"
        },
        {
          "url": "https://japanchess.org/2026/07/03/kids-summer-2026-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "参加費 ： 3,500円（税込み）"
        },
        {
          "url": "https://chess-results.com/tnr1211439.aspx?lan=1",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Summer Kids Chess Tournament 2025"
        }
      ]
    },
    {
      "slug": "japan-open",
      "name": "Japan Open",
      "name_local": "ジャパンオープン",
      "kind": "tournament",
      "sections": [
        "play"
      ],
      "municipality": "Chiba",
      "address": "千葉県千葉市美浜区中瀬1-3 幕張テクノガーデンA棟",
      "district": "Makuhari",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "registration_required",
        "src": 4
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "classical",
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The 2026 edition is dated 21 to 25 November 2026 at X-Wave Makuhari in Chiba city. The 2025 edition, listed on the tournament server and the FIDE list for Tokyo and dated from 19 September 2025, was held at a different venue, the Shinagawa ward public hall (Kyurian) in Tokyo.",
        "evidence_date": "2026-11-21",
        "moved_to": null,
        "src": 2
      },
      "contacts": {
        "website": "https://japanchess.org/2026/07/31/japan-open-2026/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/2026/07/31/japan-open-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "・会場 ：クロス・ウェーブ幕張(千葉市美浜区)"
        },
        {
          "url": "https://japanchess.org/2026/07/31/japan-open-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "千葉県千葉市美浜区中瀬1-3 幕張テクノガーデンA棟"
        },
        {
          "url": "https://japanchess.org/2026/07/31/japan-open-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "2026年11月21日(土)～2026年11月25日(水)"
        },
        {
          "url": "https://japanchess.org/2026/07/31/japan-open-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "持ち時間90分+30秒/手、FIDE・国内スタンダード公式戦"
        },
        {
          "url": "https://japanchess.org/2026/07/31/japan-open-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "・ 申込方法 ： [ Peatix ]にて購入"
        },
        {
          "url": "https://chess-results.com/tnr1210611.aspx?lan=1",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Japan Open 2025"
        }
      ]
    },
    {
      "slug": "akabane-chess-club-fide-rapid-tournament",
      "name": "Akabane Chess Club FIDE Rapid Tournament",
      "name_local": "赤羽チェスクラブ FIDE Rapid 大会",
      "kind": "tournament",
      "sections": [
        "play"
      ],
      "municipality": "Kita",
      "address": null,
      "district": "Akabane",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "rapid",
        "classical",
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The numbered Akabane Chess Club FIDE and national rated tournament series ran in Kita ward halls: the 1st on 6 June 2026, the 2nd on 20 July, the 3rd on 11 August, the 4th (classical) on 22 and 23 September and the 5th on 12 October. The 6th is dated 3 November 2026. The halls named are Akabane Kaikan and Hokutopia; the notices print no street address.",
        "evidence_date": "2026-11-03",
        "moved_to": null,
        "src": 4
      },
      "contacts": {
        "website": null,
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/2026/05/07/1st-akabane-chess-club-fide-rapid-tournament/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場： 北区赤羽会館 第6・第7集会室（東京都北区）"
        },
        {
          "url": "https://japanchess.org/2026/05/25/2nd-akabane-chess-club-fide-rapid-tournament/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場： 北とぴあ 802会議室（東京都北区）"
        },
        {
          "url": "https://japanchess.org/2026/07/04/3rd-akabane-chess-club-fide-rapid-tournament/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "日時： 2026年8月11日（火・祝）"
        },
        {
          "url": "https://japanchess.org/2026/07/17/4th-akabane-chess-club-fide-classical-tournament/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場： 北とぴあ 7階 第1研修室（東京都北区）"
        },
        {
          "url": "https://japanchess.org/2026/08/21/5th-akabane-chess-club-fide-rapid-tournament-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "日程： 2026年10月12日（月祝）"
        },
        {
          "url": "https://japanchess.org/2026/09/12/6th-akabane-chess-club-fide-rapid-tournament/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "日程： 2026年11月3日（火）"
        },
        {
          "url": "https://japanchess.org/2026/05/07/1st-akabane-chess-club-fide-rapid-tournament/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "スイス式6ラウンド、15分+10秒／手、FIDE／国内ラピッド公式戦"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "chiba-chess-festa-in-kashiwa",
      "name": "Chiba Chess Festa in Kashiwa",
      "name_local": "千葉チェスFesta in 柏",
      "kind": "tournament",
      "sections": [
        "play"
      ],
      "municipality": "Kashiwa",
      "address": "千葉県柏市柏5丁目8-12",
      "district": null,
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "open_to_all",
        "src": 0
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "rapid"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": false,
        "body": null,
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The Chiba Chess Festa in Kashiwa is a numbered rapid event: the 31st was dated 5 September 2026 on the tournament server, and the organising club's site gives the 32nd for 18 October 2026. The 28th, dated 21 June 2026, was cancelled. The venue is the Kashiwa City Central Community Center; its address is printed on the club's class page.",
        "evidence_date": "2026-10-18",
        "moved_to": null,
        "src": 0
      },
      "contacts": {
        "website": "https://chiba-chess-club.com/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://chiba-chess-club.com/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "第32回千葉チェスFesta in柏"
        },
        {
          "url": "https://chiba-chess-club.com/%e4%be%8b%e4%bc%9a%e3%80%80monthly-meeting/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Venue: Kashiwa City Central Community Center 5F"
        },
        {
          "url": "https://chiba-chess-club.com/%e3%83%81%e3%82%a7%e3%82%b9%e6%95%99%e5%ae%a4/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "〒277-0005千葉県柏市柏5丁目8-12"
        },
        {
          "url": "https://chess-results.com/tnr1471371.aspx?lan=1",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "31st Chiba Chess Festa in Kashiwa"
        },
        {
          "url": "https://chess-results.com/tnr1423266.aspx?lan=1",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "27th Chiba Chess Festa in Kashiwa"
        },
        {
          "url": "https://chiba-chess-club.com/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "ラピッド 15分 ⁺ 10秒 （１手毎加算）5ラウンド(非公式戦）"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "bashamichi-street-chess",
      "name": "Bashamichi Street Chess",
      "name_local": "馬車道ストリートチェス",
      "kind": "tournament",
      "sections": [
        "play"
      ],
      "municipality": "Yokohama",
      "address": "神奈川県横浜市中区尾上町5-71",
      "district": "Kannai",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "outdoor",
      "access": {
        "value": "open_to_all",
        "src": 3
      },
      "cost": {
        "value": "free",
        "amount": null,
        "src": 3
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": true,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 3
      },
      "formats": [
        "casual",
        "lessons"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": null,
        "body": null,
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The annual open-air event, held on the last day of a street festival at Bashamichi square in Yokohama, was dated 3 November 2025 and is dated 3 November 2026, 11:00 to 15:00. It is cancelled in rain. Entry is free, with a knockout tournament, a beginners' lecture and free play.",
        "evidence_date": "2026-11-03",
        "moved_to": null,
        "src": 0
      },
      "contacts": {
        "website": "https://japanchess.org/2026/10/13/bashamichi-2026/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/2026/10/13/bashamichi-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "開催日時：2026年11月3日(火祝) 11:00-15:00"
        },
        {
          "url": "https://japanchess.org/2026/10/13/bashamichi-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場名：馬車道ひろば"
        },
        {
          "url": "https://japanchess.org/2026/10/13/bashamichi-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "神奈川県横浜市中区尾上町5-71"
        },
        {
          "url": "https://japanchess.org/2026/10/13/bashamichi-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "一般参加OK、参加費無料！"
        },
        {
          "url": "https://japanchess.org/2025/10/03/bashamichi-2025/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "開催日時：2025/11/3(月祝) 11:00-15:00"
        }
      ]
    },
    {
      "slug": "shimokita-street-chess",
      "name": "Shimokita Street Chess",
      "name_local": "シモキタ Street Chess",
      "kind": "tournament",
      "sections": [
        "play"
      ],
      "municipality": "Setagaya",
      "address": null,
      "district": "Shimokitazawa",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "outdoor",
      "access": {
        "value": "open_to_all",
        "src": 4
      },
      "cost": {
        "value": "free",
        "amount": null,
        "src": 4
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": true,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 3
      },
      "formats": [
        "casual",
        "simul",
        "lessons"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": null,
        "body": null,
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The federation runs a chess corner at the yearly Shimokita Meijinsen street event: the 14th was dated 27 April 2025 and the 15th is listed on the federation calendar for 26 April 2026 (12:00 to 17:00, a special site near Shimokitazawa station), with simultaneous exhibitions and a beginners' puzzle corner. The 2026 notice prints the year 2025 in its date line; the calendar and the weekday point to 2026.",
        "evidence_date": "2026-04-26",
        "moved_to": null,
        "src": 1
      },
      "contacts": {
        "website": "https://japanchess.org/2026/04/13/simokita-2026/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/2026/04/13/simokita-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "シモキタ名人戦に今年もチェスのコーナーを出展します"
        },
        {
          "url": "https://japanchess.org/tournament-information-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "第15回シモキタ名人戦"
        },
        {
          "url": "https://japanchess.org/2026/04/13/simokita-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場：下北沢駅近くの特設会場"
        },
        {
          "url": "https://japanchess.org/2025/04/05/shimokita-2025-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "毎年4月下旬に開催され今年で14回目を迎えるシモキタ名人戦"
        },
        {
          "url": "https://japanchess.org/2025/04/05/shimokita-2025-2/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "どなたでも無料で参加できます"
        }
      ]
    },
    {
      "slug": "kanagawa-chess-championship",
      "name": "Kanagawa Chess Championship",
      "name_local": "神奈川チェス選手権",
      "kind": "tournament",
      "sections": [
        "play"
      ],
      "municipality": "Yokohama",
      "address": null,
      "district": "Tsurumi",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "Japan Chess Federation",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The Kanagawa Chess Championship, a regional qualifier for the national championship organised by the Kawasaki Chess Club, was dated 28 and 29 March 2026 at a district centre in Tsurumi ward, Yokohama. A 2025 edition and a Kanagawa Rapid Chess Championship of 27 September 2025 are listed on the tournament server, with a hall in Kawasaki printed as the venue.",
        "evidence_date": "2026-03-29",
        "moved_to": null,
        "src": 0
      },
      "contacts": {
        "website": null,
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/qualifying-tournaments-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "神奈川チェス選手権2026"
        },
        {
          "url": "https://japanchess.org/qualifying-tournaments-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場: 矢向地区センター (神奈川県横浜市鶴見区)"
        },
        {
          "url": "https://chess-results.com/tnr1374487.aspx?lan=1",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Kanagawa Chess Championship 2026"
        },
        {
          "url": "https://chess-results.com/tnr1222221.aspx?lan=1",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Kanagawa Rapid Chess Championship 2025"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "japan-collegiate-chess-championship",
      "name": "Japan Collegiate Chess Championship",
      "name_local": "全日本学生チェス選手権",
      "kind": "tournament",
      "sections": [
        "play"
      ],
      "municipality": "Meguro",
      "address": null,
      "district": "Ōokayama",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "classical",
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": null,
        "body": null,
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The 2026 edition was dated 3 and 4 March 2026 at Science Tokyo (the former Tokyo Institute of Technology), organised by the Student Chess Federation. The federation's 2025 calendar lists the 2025 edition on 6 and 7 February 2025. The notice names the university but not the campus; the university's main campus is in Ōokayama, Meguro.",
        "evidence_date": "2026-03-03",
        "moved_to": null,
        "src": 1
      },
      "contacts": {
        "website": null,
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/2026/02/06/japan-collegiate-chess-championship-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "会場： 東京科学大学（旧東京工業大学）"
        },
        {
          "url": "https://japanchess.org/2026/02/06/japan-collegiate-chess-championship-2026/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "日程： 2026年3月3日(火)-4日(水)"
        },
        {
          "url": "https://japanchess.org/tournament-2025/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "全日本学生チェス選手権2025"
        },
        {
          "url": "https://en.wikipedia.org/wiki/Institute_of_Science_Tokyo",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "The main campus is located in Ookayama, Meguro"
        }
      ]
    },
    {
      "slug": "kspace-after-school-chess-club",
      "name": "Kspace After School Chess Club",
      "name_local": null,
      "kind": "academy",
      "sections": [
        "learn"
      ],
      "municipality": "Minato",
      "address": "5-13-39 Shirokanedai, Minato Ku, Tokyo 108-0071",
      "district": "Shirokanedai",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "registration_required",
        "src": 4
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": true,
        "kids": true,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "lessons"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": null,
        "body": null,
        "src": 0
      },
      "training": {
        "offers": [
          "group_classes",
          "kids_classes"
        ],
        "ages": "4-7",
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": true,
        "group_size": "10 places",
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [
        {
          "organiser": "Kspace International Preschool and Kindergarten Tokyo",
          "weekday": "Thu",
          "time": "16:00-17:00",
          "note": "After-school chess club for children aged 4 to 7, maximum 10 places; a single trial session may carry a fee.",
          "live_page": "https://kspacetokyo.org/main/afterschool/chess.php",
          "src": 1
        }
      ],
      "status": {
        "value": "active",
        "evidence": "The school's after-school page lists a Chess Club for ages 4 to 7 on Thursdays from 4:00 to 5:00 pm with ten places and a trial class by appointment. The page prints no date of its own other than a 2026 copyright line.",
        "evidence_date": null,
        "moved_to": null,
        "src": 1
      },
      "contacts": {
        "website": "https://kspacetokyo.org/main/afterschool/chess.php",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://kspacetokyo.org/main/afterschool/chess.php",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Ages 4 to 7 years"
        },
        {
          "url": "https://kspacetokyo.org/main/afterschool/chess.php",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Thursdays at 4:00pm to 5:00pm"
        },
        {
          "url": "https://kspacetokyo.org/main/afterschool/chess.php",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Spaces for 10 budding Chess players only!"
        },
        {
          "url": "https://kspacetokyo.org/main/afterschool/chess.php",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "5-13-39 Shirokanedai, Minato Ku, Tokyo 108-0071"
        },
        {
          "url": "https://kspacetokyo.org/main/afterschool/chess.php",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "trial a class"
        }
      ]
    },
    {
      "slug": "dream-academia",
      "name": "Dream AcademiA",
      "name_local": "ドリームアカデミア",
      "kind": "academy",
      "sections": [
        "learn"
      ],
      "municipality": "Minato",
      "address": "106-0044 東京都港区東麻布1-26-8 プライム東麻布3F",
      "district": "Higashi-Azabu",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "registration_required",
        "src": 9
      },
      "cost": {
        "value": "paid",
        "amount": "Monthly fee 5,500 yen (beginner class) or 7,700 yen (step class), enrolment fee 11,000 yen, tax included",
        "src": 8
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": true,
        "kids": true,
        "adults_only": null,
        "languages": [],
        "src": 1
      },
      "formats": [
        "lessons"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": null,
        "body": null,
        "src": 0
      },
      "training": {
        "offers": [
          "group_classes",
          "kids_classes"
        ],
        "ages": "from the final year of kindergarten",
        "languages": [],
        "price": {
          "value": "published",
          "amount": "5,500 yen per month (beginner class); 7,700 yen per month (step class); enrolment fee 11,000 yen; tax included",
          "src": 7
        },
        "trial_lesson": true,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 6
      },
      "sessions": [
        {
          "organiser": "Dream AcademiA",
          "weekday": "Fri",
          "time": "15:45-16:55",
          "note": "Chess beginner class (children who do not yet know the moves), second and fourth Friday of the month.",
          "live_page": "https://www.dreaca.jp/",
          "src": 2
        },
        {
          "organiser": "Dream AcademiA",
          "weekday": "Sat",
          "time": "15:45-16:55",
          "note": "Chess beginner class, second and fourth Saturday of the month.",
          "live_page": "https://www.dreaca.jp/",
          "src": 3
        },
        {
          "organiser": "Dream AcademiA",
          "weekday": "Fri",
          "time": "17:00-19:00",
          "note": "Chess step class (children who can play a game alone), second and fourth Friday of the month.",
          "live_page": "https://www.dreaca.jp/",
          "src": 4
        },
        {
          "organiser": "Dream AcademiA",
          "weekday": "Sat",
          "time": "17:00-19:00",
          "note": "Chess step class, second and fourth Saturday of the month.",
          "live_page": "https://www.dreaca.jp/",
          "src": 5
        }
      ],
      "status": {
        "value": "active",
        "evidence": "The school's news page carries the October 2026 timetable in a post dated 23 September 2026. Since April 2026 its chess classes are run by Shogi Chess Frontier of Setagaya; the school itself teaches shogi as well.",
        "evidence_date": "2026-09-23",
        "moved_to": null,
        "src": 10
      },
      "contacts": {
        "website": "https://www.dreaca.jp/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://www.dreaca.jp/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "東京都港区東麻布1-26-8 プライム東麻布3F"
        },
        {
          "url": "https://www.dreaca.jp/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "子ども向け チェススクール"
        },
        {
          "url": "https://www.dreaca.jp/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "第2・第4金曜日（月2回）15:45～16:55"
        },
        {
          "url": "https://www.dreaca.jp/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "第2・第4土曜日（月2回）15:45～16:55"
        },
        {
          "url": "https://www.dreaca.jp/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "第2・第4金曜日（月2回）17:00〜19:00"
        },
        {
          "url": "https://www.dreaca.jp/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "第2・第4土曜日（月2回）17:00〜19:00"
        },
        {
          "url": "https://www.dreaca.jp/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "（年長以上）"
        },
        {
          "url": "https://www.dreaca.jp/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "5,500 円 （税込）"
        },
        {
          "url": "https://www.dreaca.jp/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "7,700 円 （税込）"
        },
        {
          "url": "https://www.dreaca.jp/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "まずは、 見学・体験申し込み"
        },
        {
          "url": "https://www.dreaca.jp/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "2026年10月のスケジュール"
        },
        {
          "url": "https://shogi-chess-frontier.com/about_us/higashi_azabu",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "2026年4月から将棋チェスフロンティアにて運営をさせて頂く事となりました。"
        }
      ]
    },
    {
      "slug": "shogi-chess-frontier",
      "name": "Shogi Chess Frontier",
      "name_local": "将棋・チェス フロンティア",
      "kind": "academy",
      "sections": [
        "learn"
      ],
      "municipality": "Setagaya",
      "address": "158-0083 東京都世田谷区奥沢3-35-9 エスペランサ奥沢 402",
      "district": "Okusawa",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "registration_required",
        "src": 9
      },
      "cost": {
        "value": "paid",
        "amount": "Beginners' chess class 7,480 yen per month (4,950 tuition plus 2,530 facility fee); enrolment fee 5,500 yen; tax included",
        "src": 5
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": true,
        "kids": true,
        "adults_only": null,
        "languages": [],
        "src": 1
      },
      "formats": [
        "lessons"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": null,
        "body": null,
        "src": 0
      },
      "training": {
        "offers": [
          "group_classes",
          "kids_classes",
          "adult_classes"
        ],
        "ages": null,
        "languages": [],
        "price": {
          "value": "published",
          "amount": "Beginners' chess class 7,480 yen per month; enrolment fee 5,500 yen; tax included",
          "src": 5
        },
        "trial_lesson": true,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 7
      },
      "sessions": [
        {
          "organiser": "Shogi Chess Frontier",
          "weekday": "Tue",
          "time": "15:50-16:50",
          "note": "Beginners' chess class (\"first chess\"), first and third Tuesday of the month; a second group meets on the second and fourth Tuesday.",
          "live_page": "https://shogi-chess-frontier.com/class",
          "src": 2
        },
        {
          "organiser": "Shogi Chess Frontier",
          "weekday": "Tue",
          "time": "17:00-18:30",
          "note": "Chess beginner class on the first and third Tuesday and intermediate class on the second and fourth Tuesday.",
          "live_page": "https://shogi-chess-frontier.com/class",
          "src": 3
        },
        {
          "organiser": "Shogi Chess Frontier",
          "weekday": "Tue",
          "time": "19:00-20:30",
          "note": "Chess class for adults, in two groups: first and third Tuesday, and second and fourth Tuesday.",
          "live_page": "https://shogi-chess-frontier.com/class",
          "src": 4
        }
      ],
      "status": {
        "value": "active",
        "evidence": "The school's home page announces a book published on 20 May 2026 and lists the chess classes of a week in October with places open for a trial lesson. It also runs the chess classes of Dream AcademiA in Higashi-Azabu since April 2026.",
        "evidence_date": "2026-05-20",
        "moved_to": null,
        "src": 8
      },
      "contacts": {
        "website": "https://shogi-chess-frontier.com/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://shogi-chess-frontier.com/about_us",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "東京都世田谷区奥沢3-35-9 エスペランサ奥沢 402"
        },
        {
          "url": "https://shogi-chess-frontier.com/about_us",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "お子様から大人まで"
        },
        {
          "url": "https://shogi-chess-frontier.com/class",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "15:50〜16:50"
        },
        {
          "url": "https://shogi-chess-frontier.com/class",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "17:00〜18:30"
        },
        {
          "url": "https://shogi-chess-frontier.com/class",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "19:00〜20:30"
        },
        {
          "url": "https://shogi-chess-frontier.com/price",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "7,480円"
        },
        {
          "url": "https://shogi-chess-frontier.com/price",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "入会時に入会金として5,500円（税込）を頂戴いたします。"
        },
        {
          "url": "https://shogi-chess-frontier.com/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "体験可"
        },
        {
          "url": "https://shogi-chess-frontier.com/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "2026/5/20に出版致しました"
        },
        {
          "url": "https://shogi-chess-frontier.com/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "お問い合わせからお申込み下さい。"
        },
        {
          "url": "https://shogi-chess-frontier.com/about_us/higashi_azabu",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "2026年4月から将棋チェスフロンティアにて運営をさせて頂く事となりました。"
        }
      ]
    },
    {
      "slug": "chofu-chess-club",
      "name": "Chofu Chess Club",
      "name_local": "調布チェスクラブ",
      "kind": "club",
      "sections": [
        "play",
        "community"
      ],
      "municipality": "Chōfu",
      "address": "182-0022 東京都調布市国領町2-5-15",
      "district": "Kokuryō",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "open_to_all",
        "src": 4
      },
      "cost": {
        "value": "paid",
        "amount": "300 yen, free for junior high school students and younger",
        "src": 2
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": true,
        "kids": true,
        "adults_only": null,
        "languages": [],
        "src": 3
      },
      "formats": [
        "casual"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": null,
        "body": null,
        "src": 3
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [
        {
          "organiser": "Chofu Chess Club",
          "weekday": "irregular",
          "time": null,
          "note": "About once a month, on a Sunday according to the club page; the club's public calendar also holds meetings on a Saturday and on a Sunday afternoon. Held at Chofu Civic Plaza Acros, 3rd floor; 300 yen, free for junior high school students and younger.",
          "live_page": "https://champierre.github.io/chofuchessclub/",
          "src": 1
        }
      ],
      "status": {
        "value": "active",
        "evidence": "The club's public calendar lists its 14th meeting on 26 July 2026, its 15th on 30 August 2026 and its 16th on 19 September 2026, all at Chofu Civic Plaza Acros; the club began in September 2024. The club is not on the federation's club list of 1 October 2026.",
        "evidence_date": "2026-09-19",
        "moved_to": null,
        "src": 5
      },
      "contacts": {
        "website": "https://champierre.github.io/chofuchessclub/",
        "email": null,
        "phone": null,
        "social": [
          "X @chofuchess"
        ]
      },
      "sources": [
        {
          "url": "https://champierre.github.io/chofuchessclub/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "〒182-0022 東京都調布市国領町2-5-15"
        },
        {
          "url": "https://champierre.github.io/chofuchessclub/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "月1回程度（日曜日）"
        },
        {
          "url": "https://champierre.github.io/chofuchessclub/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "300円（現地払い）/ 中学生以下は無料"
        },
        {
          "url": "https://champierre.github.io/chofuchessclub/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "ルールを知らない初心者の方から上級者の方まで、こどもから大人まで、"
        },
        {
          "url": "https://champierre.github.io/chofuchessclub/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "チェスに興味がある方、対局相手を探している方、ぜひお気軽にご参加ください！"
        },
        {
          "url": "https://calendar.google.com/calendar/ical/chofuchess%40gmail.com/public/basic.ics",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "第16回 調布チェスクラブ交流会"
        }
      ]
    },
    {
      "slug": "kitasenju-chess-club",
      "name": "Kita-Senju Chess Club",
      "name_local": "北千住チェスクラブ",
      "kind": "club",
      "sections": [
        "play"
      ],
      "municipality": "Adachi",
      "address": null,
      "district": "Kita-Senju",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "paid",
        "amount": "800 yen per day (500 yen for one round); 500 yen under 20",
        "src": 2
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [
        "rated_tournaments"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": null,
        "body": null,
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "closed",
        "evidence": "The club's own site carries a notice dated 21 March 2025 that the club was dissolved after being on break since August 2024; its federation-rated meetings had been held in a conference room of the Tokyo Art Center, seven minutes on foot from Kita-Senju station, and the site says it is to be closed.",
        "evidence_date": "2025-03-21",
        "moved_to": null,
        "src": 0
      },
      "contacts": {
        "website": "http://chess.m1.valueserver.jp/",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "http://chess.m1.valueserver.jp/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "一旦北千住チェスクラブを解散することにいたしました。"
        },
        {
          "url": "http://chess.m1.valueserver.jp/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "東京芸術センター"
        },
        {
          "url": "http://chess.m1.valueserver.jp/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "例会参加費：１日　８００円"
        },
        {
          "url": "https://ja.wikipedia.org/wiki/北千住駅",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "は、 東京都 足立区 にある"
        }
      ]
    },
    {
      "slug": "yomiuri-culture-ebisu-chess",
      "name": "Yomiuri Culture Ebisu: Introduction to Chess",
      "name_local": "よみうりカルチャー恵比寿 チェス入門",
      "kind": "academy",
      "sections": [
        "learn"
      ],
      "municipality": "Shibuya",
      "address": "150-0022 渋谷区恵比寿南1-5-5 恵比寿駅ビル「アトレ」7階",
      "district": "Ebisu",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "registration_required",
        "src": 2
      },
      "cost": {
        "value": "paid",
        "amount": "25,080 yen for six lessons over three months (members), plus a maintenance fee of 2,310 yen; tax included",
        "src": 1
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": true,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 3
      },
      "formats": [
        "lessons"
      ],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": null,
        "body": null,
        "src": 0
      },
      "training": {
        "offers": [
          "group_classes"
        ],
        "ages": null,
        "languages": [],
        "price": {
          "value": "published",
          "amount": "25,080 yen for six lessons (members); trial lesson 4,620 yen; tax included",
          "src": 1
        },
        "trial_lesson": true,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 3
      },
      "sessions": [
        {
          "organiser": "Yomiuri Culture Ebisu",
          "weekday": "Mon",
          "time": "10:30-12:00",
          "note": "Introductory chess course of six lessons over three months, on the second and fourth Monday of the month; a trial lesson is possible.",
          "live_page": "https://www.ync.ne.jp/ebisu/kouza/202610-08050020.htm",
          "src": 0
        }
      ],
      "status": {
        "value": "active",
        "evidence": "The culture centre's course page, updated on 12 October 2026, lists the six lessons of its introductory chess course from 12 October to 14 December 2026.",
        "evidence_date": "2026-12-14",
        "moved_to": null,
        "src": 0
      },
      "contacts": {
        "website": "https://www.ync.ne.jp/ebisu/kouza/202610-08050020.htm",
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://www.ync.ne.jp/ebisu/kouza/202610-08050020.htm",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "第2・4月曜日 10:30～12:00"
        },
        {
          "url": "https://www.ync.ne.jp/ebisu/kouza/202610-08050020.htm",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "3か月 6回 25,080円（うち消費税額2,280円）"
        },
        {
          "url": "https://www.ync.ne.jp/ebisu/kouza/202610-08050020.htm",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "体験料 4,620円（うち消費税額420円）"
        },
        {
          "url": "https://www.ync.ne.jp/ebisu/kouza/202610-08050020.htm",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "この講座では駒の名前や動き、ルール、基礎的なテクニックの習得を丁寧に学習します。"
        },
        {
          "url": "https://www.ync.ne.jp/ebisu/",
          "kind": "own_site",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "渋谷区恵比寿南1-5-5 恵比寿駅ビル「アトレ」7階"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "ajitobell-ebisu",
      "name": "Ajitobell",
      "name_local": "アジトベル",
      "kind": "cafe_bar",
      "sections": [
        "play"
      ],
      "municipality": "Shibuya",
      "address": "東京都渋谷区恵比寿1丁目26-17 阿部ビル 4F",
      "district": "Ebisu",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "provided",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": null,
        "body": null,
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "unconfirmed",
        "evidence": "Chess is one of several hundred games on the venue's own game list on a board-game directory, whose chess page lists it among the spaces that offer chess. The café has a general board-game offer and no chess evening of its own was found; the newest post on its directory page is dated 14 October 2026 and is not about chess.",
        "evidence_date": null,
        "moved_to": null,
        "src": 1
      },
      "contacts": {
        "website": null,
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://bodoge.hoobby.net/games/chess/spaces",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "アジトベル 恵比寿のボードゲームカフェ 東京都渋谷区恵比寿1丁目26-17 阿部ビル 4F"
        },
        {
          "url": "https://bodoge.hoobby.net/games/chess/spaces",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "ゲムマ2026秋 新作協力ゲーム！"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "ueno-boardgame-cafe-canvas",
      "name": "Ueno Board Game Cafe canvas",
      "name_local": "上野ボードゲームカフェcanvas",
      "kind": "cafe_bar",
      "sections": [
        "play"
      ],
      "municipality": "Taitō",
      "address": "東京都台東区上野4-9-2たいまるビル4階",
      "district": "Ueno",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "provided",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": null,
        "body": null,
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "unconfirmed",
        "evidence": "Chess is one of several hundred games on the venue's own game list on a board-game directory, whose chess page lists it among the spaces that offer chess. The café has a general board-game offer and no chess evening of its own was found; the newest post on its directory page is dated 11 October 2026 and is not about chess.",
        "evidence_date": null,
        "moved_to": null,
        "src": 1
      },
      "contacts": {
        "website": null,
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://bodoge.hoobby.net/games/chess/spaces",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "上野ボードゲームカフェcanvas 東京都台東区上野4-9-2たいまるビル4階"
        },
        {
          "url": "https://bodoge.hoobby.net/games/chess/spaces",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "The Boardgame Partyレポート｜2026/10/9"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "ariake-tei-sugamo",
      "name": "Ariake-tei",
      "name_local": "有明亭",
      "kind": "cafe_bar",
      "sections": [
        "play"
      ],
      "municipality": "Toshima",
      "address": "東京都豊島区巣鴨1-20-13",
      "district": "Sugamo",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "provided",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": null,
        "body": null,
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "unconfirmed",
        "evidence": "Chess is one of several hundred games on the venue's own game list on a board-game directory, whose chess page lists it among the spaces that offer chess. The café has a general board-game offer and no chess evening of its own was found; the newest post on its directory page is dated 8 September 2026 and is not about chess.",
        "evidence_date": null,
        "moved_to": null,
        "src": 1
      },
      "contacts": {
        "website": null,
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://bodoge.hoobby.net/games/chess/spaces",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "有明亭 東京都豊島区巣鴨1-20-13"
        },
        {
          "url": "https://bodoge.hoobby.net/games/chess/spaces",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "シルバーウィーク早期予約でカレー無料キャンペーン"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "brett-koganei",
      "name": "Brett",
      "name_local": null,
      "kind": "cafe_bar",
      "sections": [
        "play"
      ],
      "municipality": "Koganei",
      "address": "東京都小金井市本町3-8-10 グランコートB1F102",
      "district": "Honchō",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "provided",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": null,
        "body": null,
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "unconfirmed",
        "evidence": "Chess is one of several hundred games on the venue's own game list on a board-game directory, whose chess page lists it among the spaces that offer chess. The café has a general board-game offer and no chess evening of its own was found; the newest post on its directory page is dated 28 July 2026 and is not about chess.",
        "evidence_date": null,
        "moved_to": null,
        "src": 1
      },
      "contacts": {
        "website": null,
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://bodoge.hoobby.net/games/chess/spaces?page=2",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Brett 東京都小金井市本町3-8-10 グランコートB1F102"
        },
        {
          "url": "https://bodoge.hoobby.net/games/chess/spaces?page=2",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "お得な料金プランの新設です！"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "akibou-boardgame-cafe-ikebukuro",
      "name": "AKIBOU BOARDGAME CAFE",
      "name_local": null,
      "kind": "cafe_bar",
      "sections": [
        "play"
      ],
      "municipality": "Toshima",
      "address": "東京都豊島区池袋2-23-3 橘ビル3F",
      "district": "Ikebukuro",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "provided",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": null,
        "body": null,
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "unconfirmed",
        "evidence": "Chess is one of several hundred games on the venue's own game list on a board-game directory, whose chess page lists it among the spaces that offer chess. The café has a general board-game offer and no chess evening of its own was found; the newest post on its directory page is dated 12 November 2025 and is not about chess.",
        "evidence_date": null,
        "moved_to": null,
        "src": 1
      },
      "contacts": {
        "website": null,
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://bodoge.hoobby.net/games/chess/spaces?page=3",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "AKIBOU BOARDGAME CAFE 東京都豊島区池袋２－２３－３橘ビル３F"
        },
        {
          "url": "https://bodoge.hoobby.net/games/chess/spaces?page=3",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "新店オープン！みんなで遊びましょう！"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "keio-university-chess-club",
      "name": "Keio University Chess Club",
      "name_local": "慶應義塾大学 チェスクラブ",
      "kind": "club",
      "sections": [
        "play"
      ],
      "municipality": "Yokohama",
      "address": null,
      "district": "Hiyoshi",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "guests_welcome",
        "src": 1
      },
      "cost": {
        "value": "paid",
        "amount": "Annual fee 3,000 yen, no admission fee",
        "src": 4
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": true,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 2
      },
      "formats": [],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "学生チェス連盟 (Student Chess Federation)",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [
        {
          "organiser": "Keio University Chess Club",
          "weekday": "Mon",
          "time": null,
          "note": "After fifth period (late afternoon), Hiyoshi campus; the Shonan Fujisawa campus meets irregularly.",
          "live_page": null,
          "src": 3
        },
        {
          "organiser": "Keio University Chess Club",
          "weekday": "Thu",
          "time": null,
          "note": "After fifth period (late afternoon), Hiyoshi campus; the Shonan Fujisawa campus meets irregularly.",
          "live_page": null,
          "src": 3
        }
      ],
      "status": {
        "value": "active",
        "evidence": "The federation's list of university circles (updated 25 September 2025) includes the club (printed there as an officially recognised student organisation of the university), and a recruiting post by the club dated 28 March 2026, shown on a chess blog, gives its days and its Hiyoshi campus. The Hiyoshi campus is in Yokohama (Kōhoku ward), outside the Tokyo Metropolis but within the commuter area.",
        "evidence_date": "2026-03-28",
        "moved_to": null,
        "src": 5
      },
      "contacts": {
        "website": null,
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/jccf_circle/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "慶應義塾大学 公認学生団体 チェスクラブ"
        },
        {
          "url": "https://japanchess.org/jccf_circle/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "お近くの方は気軽に参加してください。"
        },
        {
          "url": "https://e-and-a-chess.com/?p=2022",
          "kind": "forum",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "場所：日吉キャンパス（SFCは不定期開催）"
        },
        {
          "url": "https://e-and-a-chess.com/?p=2022",
          "kind": "forum",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "日時：月・木 5限後"
        },
        {
          "url": "https://e-and-a-chess.com/?p=2022",
          "kind": "forum",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "年会費：3,000円（入会費は無料！）"
        },
        {
          "url": "https://e-and-a-chess.com/?p=2022",
          "kind": "forum",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "(@keio_kucc) March 28, 2026"
        },
        {
          "url": "https://ja.wikipedia.org/wiki/慶應義塾大学",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "日吉（ 神奈川県 横浜市 港北区 ）"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "utokyo-chess-club",
      "name": "UTokyo Chess Club",
      "name_local": "東大チェスサークル",
      "kind": "club",
      "sections": [
        "play"
      ],
      "municipality": "Meguro",
      "address": null,
      "district": "Komaba",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "guests_welcome",
        "src": 2
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "unknown",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": true,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 5
      },
      "formats": [],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": true,
        "body": "学生チェス連盟 (Student Chess Federation)",
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [
        {
          "organiser": "UTokyo Chess Club",
          "weekday": "irregular",
          "time": null,
          "note": "About once a week, as stated on the federation's list of university circles; the blog places the club's activity at the Komaba campus.",
          "live_page": null,
          "src": 1
        }
      ],
      "status": {
        "value": "active",
        "evidence": "The federation's list of university circles (updated 25 September 2025) includes the circle, and a recruiting post by the circle dated 10 March 2026, shown on a chess blog, invites both experienced players and beginners.",
        "evidence_date": "2026-03-10",
        "moved_to": null,
        "src": 4
      },
      "contacts": {
        "website": null,
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://japanchess.org/jccf_circle/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "東大チェスサークル"
        },
        {
          "url": "https://japanchess.org/jccf_circle/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "週一回程度"
        },
        {
          "url": "https://japanchess.org/jccf_circle/",
          "kind": "federation",
          "flag": "official",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "お近くの方は気軽に参加してください。"
        },
        {
          "url": "https://e-and-a-chess.com/?p=2022",
          "kind": "forum",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "駒場で活動しています。"
        },
        {
          "url": "https://e-and-a-chess.com/?p=2022",
          "kind": "forum",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "(@TodaiChessClub) March 10, 2026"
        },
        {
          "url": "https://e-and-a-chess.com/?p=2022",
          "kind": "forum",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "東大チェスサークルでは経験者・初心者問わずチェスに興味ある方大募集中です！"
        },
        {
          "url": "https://ja.wikipedia.org/wiki/東京大学駒場キャンパス",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "東京都 目黒区 駒場"
        }
      ]
    },
    {
      "slug": "english-only-cafe-kanda",
      "name": "ENGLISH ONLY CAFE",
      "name_local": null,
      "kind": "cafe_bar",
      "sections": [
        "play"
      ],
      "municipality": "Chiyoda",
      "address": "東京都千代田区神田小川町 3-1",
      "district": "Kanda-Ogawamachi",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "provided",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": null,
        "body": null,
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "active",
        "evidence": "The café hosts a free weekly Tuesday chess and shogi party on Meetup, dated Tuesday 20 October 2026, 19:00 to 21:00, repeating every week until 24 July 2027, at the café's address. Apart from that evening, chess is one of several hundred games on the café's own game list on a board-game directory, and the newest post on its directory page, dated 7 April 2025, is not about chess.",
        "evidence_date": "2026-10-20",
        "moved_to": null,
        "src": 2
      },
      "contacts": {
        "website": null,
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://bodoge.hoobby.net/games/chess/spaces?page=3",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "ENGLISH ONLY CAFE 東京都千代田区神田小川町 3-1"
        },
        {
          "url": "https://bodoge.hoobby.net/games/chess/spaces?page=3",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "基本料金無料キャンペーン！"
        },
        {
          "url": "https://www.meetup.com/tbgmeetup/events/316777244/",
          "kind": "meetup",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "Every week on Tuesday until July 24, 2027"
        },
        {
          "url": "https://www.meetup.com/tbgmeetup/events/316777244/",
          "kind": "meetup",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "English only cafe 3-chōme-1 Kanda Ogawamachi, Chiyoda City"
        }
      ],
      "edited": "2026-10-15"
    },
    {
      "slug": "board-game-dojo-nakano",
      "name": "Board Game Dojo",
      "name_local": "ボードゲーム道場",
      "kind": "other",
      "sections": [
        "play"
      ],
      "municipality": "Nakano",
      "address": "東京都中野区中野1-55-2 パレス中村ⅡB1",
      "district": "Nakano",
      "lat": null,
      "lon": null,
      "coords_source": null,
      "indoor_outdoor": "indoor",
      "access": {
        "value": "unknown",
        "src": 0
      },
      "cost": {
        "value": "unknown",
        "amount": null,
        "src": 0
      },
      "equipment": {
        "boards": "provided",
        "clocks": "unknown",
        "tables_count": null,
        "giant_pieces": "n/a",
        "src": 0
      },
      "audience": {
        "beginners_welcome": null,
        "kids": null,
        "adults_only": null,
        "languages": [],
        "src": 0
      },
      "formats": [],
      "season": {
        "value": "unknown",
        "months": null,
        "src": 0
      },
      "federation": {
        "member": null,
        "body": null,
        "src": 0
      },
      "training": {
        "offers": [],
        "ages": null,
        "languages": [],
        "price": {
          "value": "unknown",
          "amount": null,
          "src": 0
        },
        "trial_lesson": null,
        "group_size": null,
        "coaches": [],
        "branches": null,
        "src": 0
      },
      "sessions": [],
      "status": {
        "value": "unconfirmed",
        "evidence": "Chess is one of several hundred games on the venue's own game list on a board-game directory, whose chess page lists it among the spaces that offer chess. The venue is a general board-game space with a Saturday board-game evening and no chess evening of its own was found; the newest post on its directory page is dated 26 December 2025 and is not about chess.",
        "evidence_date": null,
        "moved_to": null,
        "src": 1
      },
      "contacts": {
        "website": null,
        "email": null,
        "phone": null,
        "social": []
      },
      "sources": [
        {
          "url": "https://bodoge.hoobby.net/games/chess/spaces?page=2",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "ボードゲーム道場 東京都中野区中野１−５５−２ パレス中村ⅡB１"
        },
        {
          "url": "https://bodoge.hoobby.net/games/chess/spaces?page=2",
          "kind": "directory",
          "flag": "secondary",
          "opened": true,
          "seen": "2026-10-15",
          "quote": "「うちの子、考えていない気がする」"
        }
      ],
      "edited": "2026-10-15"
    }
  ],
  "chess960": {
    "searched": [
      "チェス960 フィッシャーランダム 東京 大会 日本チェス連盟",
      "Chess960 Freestyle chess Tokyo over the board tournament 2026",
      "the federation's 2025 and 2026 domestic calendars, the club-notice pages and the chess-results Japan list (2025-2027) read for 960, Fischer, Freestyle and フィッシャー"
    ],
    "found": [],
    "note": "Nothing over the board in the Tokyo metro area was found: no Chess960, Fischer Random or Freestyle event appears on the federation calendars, the club pages read, the tournament-server list for Japan (226 events, 2025 to 2027) or the FIDE list."
  },
  "not_included": [
    {
      "name": "Tokyo Chess Festival",
      "reason": "The 2023 and 2024 editions (2024: a notice dated 31 August 2024) were organised by the federation; no 2025 or 2026 edition was found on the federation calendars, so no current trace."
    },
    {
      "name": "Eastern Tokyo Chess Championship",
      "reason": "The 2026 edition planned for 7 March 2026 was cancelled per the federation; the 2025 edition (20 March 2025) is recorded under Divine Chess Gurukul."
    },
    {
      "name": "Western Tokyo Chess Championship and Western Tokyo Team Rapid Chess Championship",
      "reason": "Regional qualifiers organised by Nakano Chess Club in the Nakano ward office; recorded in the Nakano Chess Club card (organiser-as-tournament)."
    },
    {
      "name": "Machida Summer Rapid Open and Machida Silver Week Open",
      "reason": "Organised by Machida Chess Club in two different halls; recorded in the Machida Chess Club card."
    },
    {
      "name": "Northern Tokyo Chess Championship",
      "reason": "One 2026 edition organised by Akabane Chess Club; recorded in that club's card."
    },
    {
      "name": "Chiba Chess Championship and Chiba Rapid Team Chess Championship in Kashiwa",
      "reason": "Organised by Chiba Chess Club in Kashiwa; recorded in that club's card and the Festa card."
    },
    {
      "name": "Shinjuku Second Saturday, Chiba Second Saturday, Adachi Chess Rapid (all numbered #1)",
      "reason": "Each listed on the tournament server as a first edition in 2025 by an Osaka-based club; no second edition found."
    },
    {
      "name": "Club Match Omotesando",
      "reason": "One event on the tournament server dated 16 February 2025; no organiser page or later edition."
    },
    {
      "name": "HJIS Yokohama 1st Kanto Open Scholastic Chess Tournament",
      "reason": "A first edition at one international school, dated 15 November 2026; a single venue with one occasion."
    },
    {
      "name": "Lycée Français International de Tokyo (Asia-Pacific school chess tournaments, May 2026)",
      "reason": "A school that hosted one set of tournaments; no series."
    },
    {
      "name": "Kawagoe Chess Club",
      "reason": "Kawagoe is outside the metro area set for this wave (Saitama, Kawaguchi and Sōka only in Saitama prefecture)."
    },
    {
      "name": "Sotobo Chess Club (Mobara), Ibaraki Chess Club (Mito)",
      "reason": "Outside the metro area (Mobara and Mito)."
    },
    {
      "name": "Chess Center at Ikegami",
      "reason": "Named only in a 2017 forum thread (described there as the federation's weekend club); the federation's current club list and calendar name Chess Center UENO instead and no Ikegami page was found."
    },
    {
      "name": "Tokyo Chess Meetup (pub in Shimokitazawa)",
      "reason": "Named only in the same 2017 forum thread; the Meetup address tried (tokyo-chess-club) answers \"Group not found\"."
    },
    {
      "name": "Shogi & Chess Gathering In Tokyo (Nakano Zero)",
      "reason": "A Meetup group named in a search result; its page answers \"Group not found\" when opened."
    },
    {
      "name": "Tokyo International Board Game Club - BODOSHARE Shinjuku",
      "reason": "Listed by Meetup in the chess topic search, but the event seen (23 October 2026) is about Japanese board games; no page says chess is played."
    },
    {
      "name": "1-on-1 English + Chess Meetup (Tokyo Walks group)",
      "reason": "A weekly Tuesday Meetup event of a private group; the event page shows only the time (Tuesday 18:45 to 21:00) and says the location and details are visible to members only, so no place can be named."
    },
    {
      "name": "Wako-Asaka Chess Club, Tokorozawa Chess Club, Hannō Chess Club, Konosu Chess Club, Kawagoe Chess Club",
      "reason": "Saitama clubs named on a chess blog's club list; the cities (Wako, Asaka, Tokorozawa, Hannō, Konosu, Kawagoe) are outside the city set of this directory (Saitama, Kawaguchi, Sōka)."
    },
    {
      "name": "Teku Teku Chess Classroom",
      "reason": "Online lessons only; no place in the metropolitan area."
    },
    {
      "name": "CERVO HOUSE (Higashimurayama), Presentation Cafe (Hachiōji), Boardway (Nakano)",
      "reason": "Listed by a board-game directory as spaces offering chess, but with no news post or other dated trace, and no second page."
    },
    {
      "name": "Hamariba Cafe (Yokohama)",
      "reason": "Listed by a board-game directory as offering chess; its latest post there is dated 29 December 2024, so no 2025 or 2026 trace."
    },
    {
      "name": "Amusement Bar Lindo (Kasukabe), Board Game Cafe Rosenburg (Kawagoe), Game Cafe PONs (Fujisawa)",
      "reason": "Listed by a board-game directory as offering chess; the cities are outside the city set of this directory."
    }
  ]
}