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A solved game is a game whose outcome (win, lose or draw) can be correctly predicted from any position, assuming that both players play perfectly.This concept is usually applied to abstract strategy games, and especially to games with full information and no element of chance; solving such a game may use combinatorial game theory or computer assistance.
A variant first described by Claude Shannon provides an argument about the game-theoretic value of chess: he proposes allowing the move of “pass”. In this variant, it is provable with a strategy stealing argument that the first player has at least a draw thus: if the first player has a winning move in the initial position, let him play it, else pass.
2023: Nepomniachtchi–Ding, World Chess Championship 2023, Game 18. In a winner-take-all tiebreak game, Ding Liren avoids a draw with a risky self-pin on move 46. Both players make errors in the subsequent play but Nepomniachtchi makes the last one as Ding breaks through to become the 17th undisputed World Chess Champion. [123]
Play free chess online against the computer or challenge another player to a multiplayer board game. With rated play, chat, tutorials, and opponents of all levels!
The modern rules of chess emerged in Europe at the end of the 15th century, with standardization and universal acceptance by the end of the 19th century. Today, chess is one of the world's most popular games, with millions of players worldwide. Organized chess arose in the 19th century.
Use of an endgame tablebase might be permitted in a live game even if engine use is forbidden. Players have also used tablebases to analyze endgames from over-the-board play after the game is over. A six-piece tablebase (KQQKQQ) was used to analyze the endgame that occurred in the correspondence game Kasparov versus The World. [46]
Grandmaster Christopher Yoo was charged with fourth-degree assault and expelled from tournament
The longest decisive FIDE-rated game is Billy Fellowes vs Peter Lalić, London 2024, which lasted for 272 moves, at the Third Kingston Invitational. [1] [2] [3] The longest game played in a world championship is the 6th game of the 2021 World Chess Championship between Magnus Carlsen and Ian Nepomniachtchi, which Carlsen won in 136 moves by ...