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Staunton style chess pieces. Left to right: king, rook, queen, pawn, knight, bishop. The rules of chess (also known as the laws of chess) govern the play of the game of chess. Chess is a two-player abstract strategy board game. Each player controls sixteen pieces of six types on a chessboard. Each type of piece moves in a distinct way.
Capablanca chess (or Capablanca's chess) is a chess variant invented in the 1920s by World Chess Champion José Raúl Capablanca. It incorporates two new pieces and is played on a 10×8 board. Capablanca believed that chess would be played out in a few decades (meaning games between grandmasters would always end in draws). This threat of "draw ...
Dunsany's chess, also known as Dunsany's game, [1] is an asymmetric chess variant in which Black has the standard chess army and White has 32 pawns. This game was invented by Lord Dunsany in 1942. It was published the same year in Fairy Chess Review (August issue) [ 1 ] and in Joseph Boyer's Nouveaux Jeux d'Echecs Non-orthodoxes .
Endgame chess (or the Pawns Game, with unknown origins): Players start the game with only pawns and a king. Normal check, checkmate, en passant, and pawn promotion rules apply. [6] Los Alamos chess (or anti-clerical chess): Played on a 6×6 board without bishops. This was the first chess-like game played by a computer program.
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!
Critter is a cross-platform UCI chess engine by Slovakian programmer Richard Vida which is free for non-commercial use. The engine has achieved top five on most official chess engine Elo rating lists. [1] [2] [3] [4]
A chess engine generates moves, but is accessed via a command-line interface with no graphics. A dedicated chess computer has been purpose built solely to play chess. A graphical user interface (GUI) allows one to import and load an engine, and play against it. A chess database allows one to import, edit, and analyze a large archive of past games.
The best calculation of symmetry is achieved by limiting one pawn to 24 squares in the rectangle a2-a7-d7-d2. All other pieces and pawns may be located in any of the 64 squares with respect to the pawn. Thus, an endgame with pawns has a complexity of 24/10 = 2.4 times a pawnless endgame with the same number of pieces.