{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.checkers","code":"thing-q1293","url":"https://ver.cy/models/thing/q1293/","name":"checkers","alternateNames":["Mongolian draughts","Turkish draughts","Lasca","Fanorona","Filipino dama","Hexdame","computer draughts","English draughts","Salta","Portugal draughts","Tanzanian draughts","Frisian-rules draughts"],"kind":"thing","status":"published","version":"0.2.0-wave.3","language":"en","classifiers":{"family":"Thing Registry","category":"Activities and processes","entryKind":"thing","plane":"ACT","domain":["ACT.ACT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A family of two-player abstract strategy board games played with flat pieces that capture by jumping, with board layouts and movement rules varying by variant, including diagonal movement in English and international draughts and orthogonal movement in Turkish draughts; variants include English draughts on 8x8, international draughts on 10x10, Russian, Turkish, Mongolian and Filipino draughts, with related games such as Lasca and Hexdame, while Fanorona is a distinct related game using approach and withdrawal captures; checkers is a mind sport with world championships, and English draughts was weakly solved by computer in 2007 as a draw.","purpose":"Let an agent explain checkers and its variants, relay rules, competitive organisation and computer results from public sources, and distinguish the variants from chess and other board games.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Movement is diagonal or orthogonal depending on the variant.","Pieces capture by jumping.","The game has many variants.","English draughts is a computationally solved variant."],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What checkers is.","layers":[{"id":"rules","name":"Rules","description":"Rules.","findings":[{"id":"rules-finding","name":"Rules","description":"Rules.","questions":[{"text":"What are the rules of English and international draughts, and how do they differ?","kind":"definition"},{"text":"Is the question about checkers, a specific variant or a related game?","kind":"boundary"}]}]},{"id":"variants","name":"Variants","description":"Variants.","findings":[{"id":"variants-finding","name":"Variants","description":"Variants.","questions":[{"text":"What variants exist, from Turkish and Mongolian draughts to Lasca, Fanorona and Hexdame?","kind":"definition"},{"text":"Which entry fits the specific variant?","kind":"action"}]}]}]},{"id":"play","name":"Play","description":"Playing.","layers":[{"id":"strategy","name":"Strategy","description":"Strategy.","findings":[{"id":"strategy-finding","name":"Strategy","description":"Strategy.","questions":[{"text":"What basic strategies and openings help players improve?","kind":"action"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"competition","name":"Competition","description":"Competition.","findings":[{"id":"competition-finding","name":"Competition","description":"Competition.","questions":[{"text":"How are world championships and rankings organised?","kind":"provenance"},{"text":"Which entry fits the specific federation?","kind":"action"}]}]}]},{"id":"compute","name":"Compute","description":"Computers.","layers":[{"id":"solved","name":"Solved","description":"Solving checkers.","findings":[{"id":"solved-finding","name":"Solved","description":"Solved.","questions":[{"text":"How did Chinook and its successors solve English draughts, as researchers describe?","kind":"provenance"},{"text":"Which sources are cited?","kind":"provenance"}]}]},{"id":"engines","name":"Engines","description":"Engines.","findings":[{"id":"engines-finding","name":"Engines","description":"Engines.","questions":[{"text":"What computer programs play draughts, and how do they rank?","kind":"provenance"},{"text":"Which entry fits game AI?","kind":"action"}]}]}]},{"id":"context","name":"Context","description":"History and culture.","layers":[{"id":"history","name":"History","description":"History.","findings":[{"id":"history-finding","name":"History","description":"History.","questions":[{"text":"How did draughts develop from alquerque and medieval games?","kind":"provenance"},{"text":"Which entry fits the history of board games?","kind":"action"}]}]},{"id":"culture","name":"Culture","description":"Culture.","findings":[{"id":"culture-finding","name":"Culture","description":"Culture.","questions":[{"text":"How does checkers feature in culture and education?","kind":"provenance"},{"text":"Which entry fits board game culture?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Explain the rules and variants of checkers and the differences between board sizes and capture rules.","Play, analyse or teach the game, stating which variant's rules are in use.","Report tournament results from the governing body's records."],"mustNot":["Use engine assistance in a human game or competition without disclosure.","Claim a variant's rules apply in a game played under different rules.","Help arrange a fixed result in a rated game.","Belittle players for losing to an engine."],"requiresHuman":["Ruling on a disputed game or a sanction in a rated competition."]},"ethics":{"considerations":["Engine strength has changed what fairness means in board games; undisclosed help is cheating.","The game has strong regional traditions whose rules deserve equal respect."],"affectedParties":["Opponents","Tournament players","Clubs and teachers"]},"owners":{"steward":"Nobody owns the game; national and international draughts federations govern competition.","roles":[],"masterSystems":["Federation rating and tournament records"]},"relations":[{"target":"Q1188693","type":"parent","note":"registry parent class"},{"target":"Q573573","type":"parent","note":"registry parent class"},{"target":"mind sport","type":"related","note":"in registry terms"},{"target":"abstract strategy game","type":"related","note":"in registry terms"},{"target":"World Draughts Federation","type":"related","note":"for international draughts"},{"target":"chess","type":"related","note":"another board game"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.checkers","Wikidata: Q1293 (https://www.wikidata.org/wiki/Q1293)"]},"properties":{"applicability":"not-applicable","items":["English draughts board: 8x8 squares - 12 pieces each","international draughts board: 10x10 squares - 20 pieces each","English draughts solved: 2007 year - draw with perfect play"]},"recognition":{"applicability":"optional","items":["Pieces move diagonally or orthogonally according to the variant and capture by jumping.","Variants include English, international, Russian, Turkish and Mongolian draughts and Filipino dama, while related games include Lasca and Hexdame.","Fanorona is a distinct related game with approach and withdrawal captures.","Chess uses varied pieces, Go uses stones on intersections, and backgammon uses dice.","A chequered board with round flat pieces in two colours."]},"capabilities":{"applicability":"required","items":["explain rules and variants","relay competitive organisation","relay computer analysis results","distinguish from other games"]},"hazards":{"applicability":"required","items":["Confusing variant rules","Stale championship information","Unsourced claims about solved status of variants"]},"interfaces":{"applicability":"required","items":["World Draughts Federation and national federation rules","Tournament regulations","No legal regulation of the game"]},"context":{"applicability":"required","items":["Recreation and competition.","English or American checkers","international draughts","Russian, Brazilian and Italian draughts","Turkish draughts with orthogonal movement","Mongolian draughts and Filipino dama","related games: Lasca, Fanorona, Hexdame"]}},"sources":[{"title":"Wikidata item Q1293: checkers","url":"https://www.wikidata.org/wiki/Q1293","note":"identity and sense of the item"},{"title":"Wikipedia: Checkers","url":"https://en.wikipedia.org/wiki/Checkers","note":"general description of the item"}],"openQuestions":["Should international draughts and English draughts be separate primary entries?","How should federation rules be linked?","The registry entry has merged aliases naming distinct games; should they be split off?"],"resources":{"spec":"/models/things/publications/thing-q1293/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q1293/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-13T02:31:45Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"not-applicable","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T10:10:25+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass","interaction.properties":"Plane ACT: no invented physical properties."},"score":1.0}}