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X-FEN
X-FEN (formerly FRC-FEN) is an extension of Forsyth–Edwards Notation (FEN) introduced by Reinhard Scharnagl in 2003. It was designed to be able to represent all possible positions in Fischer random chess (FRC) and Capablanca random chess (CRC). It is fully backward compatible with FEN. X-FEN definition X-FEN is based on traditional FEN. It differs only in the way that castling and ''en passant'' tags are used. Moreover, 10×8 positions which use princess (knight+bishop) and empress (knight+rook) compound pieces are supported. X-FEN inside of PGN Games are translated into Portable Game Notation (PGN) format. Each game's starting position must be stored in the PGN for FRC and CRC (but not for traditional chess). Storing the starting position is accomplished with a SetUp tag and an FEN string using the definitions for traditional chess games. Encoding en-passant The specification of a target square for an ''en passant'' capture differs slightly from standard FEN. FEN record ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shuffle Chess
Fischer random chess, also known as Chess960 (often read in this context as 'chess nine-sixty' instead of 'chess nine hundred sixty'), is a variation of the game of chess invented by the former world chess champion Bobby Fischer. Fischer announced this variation on June 19, 1996, in Buenos Aires, Argentina. Fischer random chess employs the same board and pieces as classical chess, but the starting position of the pieces on the players' is randomized, following certain rules. The random setup makes gaining an advantage through the memorization of openings impracticable; players instead must rely more on their skill and creativity . Randomizing the main pieces had long been known as shuffle chess, but Fischer random chess introduces new rules for the initial random setup, "preserving the dynamic nature of the game by retaining for each player and the right to castle for both sides". The result is 960 unique possible starting positions. In 2008, FIDE added Chess960 to an append ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forsyth–Edwards Notation
Forsyth–Edwards Notation (FEN) is a standard notation for describing a particular board position of a chess game. The purpose of FEN is to provide all the necessary information to restart a game from a particular position. FEN is based on a system developed by Scottish newspaper journalist David Forsyth. His system became popular in the 19th century; Steven J. Edwards extended it to support use by computers. FEN is defined in the "Portable Game Notation Specification and Implementation Guide". In the Portable Game Notation for chess games, FEN is used to define initial positions other than the standard one. FEN does not provide sufficient information to decide whether a draw by threefold repetition may be legally claimed or a draw offer may be accepted; for that, a different format such as Extended Position Description is needed. Definition A FEN record defines a particular game position, all in one text line and using only the ASCII character set. A text file with only FEN d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portable Game Notation
Portable Game Notation (PGN) is a standard plain text format for recording chess games (both the moves and related data), which can be read by humans and is also supported by most chess software. History PGN was devised around 1993, by Steven J. Edwards, and was first popularized and specified via the Usenet newsgroup rec.games.chess. Usage PGN is structured "for easy reading and writing by human users and for easy parsing and generation by computer programs." The chess moves themselves are given in algebraic chess notation using English initials for the pieces. The filename extension is .pgn. There are two formats in the PGN specification, the "import" format and the "export" format. The import format describes data that may have been prepared by hand, and is intentionally lax; a program that can read PGN data should be able to handle the somewhat lax import format. The export format is rather strict and describes data prepared under program control, similar to a pretty printe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Janus Chess
Janus Chess is a chess variant invented in 1978 by Werner Schöndorf from Bildstock, Germany. It is played on a 10×8 board and features a fairy chess piece, the ''janus'', with the combined moves of a bishop and a knight. The janus piece is named after the Roman god Janus because this god was usually depicted with two faces looking in opposite direction Description The usual set of chess pieces is extended with two pawns and two januses per player. Each janus is placed between a rook and a knight. The relative position of the king and queen is reversed compared to chess. After castling, the king stands on either the b- or i-file and a rook stands on either the c- or h-file, depending on which side castling is done. The janus is considered almost as powerful as a queen and is usually valued at about 8 points (based on chess piece values with pawns valued at 1). It is the only piece in the game that is able to checkmate the opponent's king without the assistance of any other piece ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chess Variants
A chess variant is a game related to, derived from, or inspired by chess. Such variants can differ from chess in many different ways. "International" or "Western" chess itself is one of a family of games which have related origins and could be considered variants of each other. Chess developed from '' chaturanga'', from which other members of this family, such as '' shatranj'', Tamerlane chess, ''shogi'', and ''xiangqi'' also evolved. Many chess variants are designed to be played with the equipment of regular chess. Most variants have a similar public-domain status as their parent game, but some have been made into commercial proprietary games. Just as in traditional chess, chess variants can be played over the board, by correspondence, or by computer. Some internet chess servers facilitate the play of some variants in addition to orthodox chess. In the context of chess problems, chess variants are called heterodox chess or fairy chess. Fairy chess variants tend to be create ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Chess
Computer chess includes both hardware (dedicated computers) and software capable of playing chess. Computer chess provides opportunities for players to practice even in the absence of human opponents, and also provides opportunities for analysis, entertainment and training. Computer chess applications that play at the level of a chess master or higher are available on hardware from supercomputers to smart phones. Standalone chess-playing machines are also available. Stockfish, GNU Chess, Fruit, and other free open source applications are available for various platforms. Computer chess applications, whether implemented in hardware or software, utilize different strategies than humans to choose their moves: they use heuristic methods to build, search and evaluate trees representing sequences of moves from the current position and attempt to execute the best such sequence during play. Such trees are typically quite large, thousands to millions of nodes. The computational speed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Capablanca Chess
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 death" for chess was his main motivation for creating a more complex version of the game. * The archbishop combines powers of a bishop and a knight. * The chancellor combines powers of a rook and a knight. The new pieces allow new strategies and possibilities that change the game. For example, the archbishop by itself can checkmate a lone king in the corner (when placed diagonally with one square in between). Setup and rules Capablanca proposed two opening setups for Capablanca chess. His final revision placed the archbishop between the and ; the chancellor between the and . The king moves three squares when castling instead of m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rank (chess)
This glossary of chess explains commonly used terms in chess, in alphabetical order. Some of these terms have their own pages, like '' fork'' and '' pin''. For a list of unorthodox chess pieces, see Fairy chess piece; for a list of terms specific to chess problems, see Glossary of chess problems; for a list of named opening lines, see List of chess openings; for a list of chess-related games, see List of chess variants. A B , "lightning"] A #fast chess, fast form of chess with a very short time limit, usually three or five minutes per player for the entire game. With the advent of electronic chess clocks, the time remaining is often incremented by one or two seconds per move.Schiller 2003, p. 398 C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
