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Three-player chess (also known as three-handed, three-man, or three-way chess) is a family of chess variants specially designed for three players. [1] Many variations of three-player chess have been devised. They usually use a non-standard board, for example, a hexagonal or three-sided board that connects the center cells in a special way. The ...
The rule is also known as repetition of position and, in the USCF rules, as triple occurrence of position. [1] Two positions are by definition "the same" if the same types of pieces occupy the same squares, the same player has the move, the remaining castling rights are the same and the possibility to capture en passant is the same. The ...
Popeye is a chess problem-solving software accommodating many fairy chess rules and able to investigate set play and tries. It can be used with several operating systems and can be connected to several existing graphical interfaces since it comes with freely available source code, cf. popeye on GitHub. Since its origin, Popeye was designed as a ...
The goal is to successfully capture the opponent's king. A stalemated player wins. [75] Extinction chess: To win, a player must capture all of any one type of pieces of the opponent (for example, all the knights an opponent has, or all their pawns, etc.). Hexapawn: Played on a rectangular board of variable size with only pawns. The goal of each ...
Chess.com and Lichess differ in how they handle accounts they determine to be cheating. Chess.com publicly issues permanent bans, visible as a crossed red circle icon next to the names of banned users. [1] In addition, the site refunds the rating points of players who have recently lost games to banned accounts. [11]
Three-man chess gameboard and starting position [a] Three-man chess is a chess variant for three players invented by George R. Dekle Sr. in 1984. [1] [2] The game is played on a hexagonal board comprising 96 quadrilateral cells. Each player controls a standard army of chess pieces.
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.
Chess strategy is the aspect of chess play concerned with evaluation of chess positions and setting goals and long-term plans for future play. While evaluating a position strategically, a player must take into account such factors as the relative value of the pieces on the board, pawn structure, king safety, position of pieces, and control of key squares and groups of squares (e.g. diagonals ...