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Archbishop (chess)
The princess is a fairy chess piece that can move like a bishop or a knight. It cannot jump over other pieces when moving as a bishop but may do so when moving as a knight. The piece has acquired many names and is frequently called an archbishop or a cardinal; it may also simply be called the bishop+knight compound. Chess moves in this article use letter ''A'' as notation for the princess. Movement The princess can move as a bishop or a knight. History and nomenclature The princess is one of the most simply described fairy chess pieces and as such has a long history and has gone by many names. It was first used in Turkish Great Chess, a large medieval variant of chess, where it was called the ''vizir'' (not to be confused with the piece more commonly referred to as the wazir today, which is the (1,0) leaper). It was introduced in the West with Carrera's chess, a chess variant from 1617, where it was called a ''centaur'', and has been used in many chess variants since ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chess Alt45
Chess is a board game for two players. It is an abstract strategy game that involves no hidden information and no elements of chance. It is played on a square board consisting of 64 squares arranged in an 8×8 grid. The players, referred to as "White" and "Black", each control sixteen pieces: one king, one queen, two rooks, two bishops, two knights, and eight pawns, with each type of piece having a different pattern of movement. An enemy piece may be captured (removed from the board) by moving one's own piece onto the square it occupies. The object of the game is to "checkmate" (threaten with inescapable capture) the enemy king. There are also several ways a game can end in a draw. The recorded history of chess goes back to at least the emergence of chaturanga—also thought to be an ancestor to similar games like and —in seventh-century India. After its introduction in Persia, it spread to the Arab world and then to Europe. The modern rules of chess emerged in Europe a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chess Problem
A chess problem, also called a chess composition, is a puzzle created by the composer using chess pieces on a chessboard, which presents the solver with a particular task. For instance, a position may be given with the instruction that White is to move first, and checkmate Black in two moves against any possible defence. A chess problem fundamentally differs from play in that the latter involves a struggle between Black and White, whereas the former involves a competition between the composer and the solver. Most positions which occur in a chess problem are unrealistic in the sense that they are very unlikely to occur in over-the-board play. There is a substantial amount of specialized jargon used in connection with chess problems. Definition The term chess problem is not sharply defined: there is no clear demarcation between chess compositions on the one hand and puzzle or tactical exercises on the other. In practice, however, the distinction is very clear. There are common c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ralph Betza
Ralph Betza (born 1945) is a FIDE Master and inventor of chess variants such as chess with different armies, Avalanche chess, and Way of the Knight. Betza was a user of the website The Chess Variant Pages, on which several chess related works of his can be found. These include the rules of his chess variants, his article on his funny notation, and articles about the value of fairy chess pieces. Invented chess variants * Multiplayer chess (date unknown) * High-low chess (1968) * Strange relay chess (1970s) * Coordinate chess (or Co-chess) (1973) * Conversion chess (1973) * Co-relay chess (1973) * Double conversion chess (1973) * Heterocoalescence chess (1973) by Philip Cohen, based on an idea by Betza * Inverter chess (or Switch chess) (1973) * Metamorphosis (c. 1973) * Pinwheel chess (1973) * Reversion conversion chess (1973) * Transportation chess (or Transchess) (1973) * Watergate chess (1973) * Weak! (1973) * Biflux chess (1974) a variant of Co-chess * Brownian moti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Chess Variant Pages
''The Chess Variant Pages'' is a non-commercial website devoted to chess variants. It was created by Hans Bodlaender in 1995. The site is "run by hobbyists for hobbyists" and is "the most wide-ranging and authoritative web site on chess variants". The site contains a large compilation of games with published rules. The aims of the site are to educate readers about chess variants, encourage gameplay, and provide a place for free discussion. The site has featured game competitions as well as variant design competitions, and provides facilities for publishing documents. Numerous files are available for playing variants using the Zillions of Games proprietary software engine. The site also features The Game Courier software developed by Fergus Duniho which can be used to play almost any variant. There is also an extensive encyclopedia of fairy chess piece A fairy chess piece, variant chess piece, unorthodox chess piece, or heterodox chess piece is a chess piece not used in conventio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queen (chess)
The queen (♕, ♛) is the most powerful piece in the game of chess. It can move any number of squares vertically, horizontally or , combining the powers of the rook and bishop. Each player starts the game with one queen, placed in the middle of the first next to the king. Because the queen is the strongest piece, a pawn is promoted to a queen in the vast majority of cases; if a pawn is promoted to a piece other than a queen, it is an underpromotion. The predecessor to the queen is the '' ferz'', a weak piece only able to move or capture one step diagonally, originating from the Persian game of shatranj. The queen acquired its modern move in Spain in the 15th century. Placement and movement The white queen starts on d1, while the black queen starts on d8. With the chessboard oriented correctly, the white queen starts on a white square and the black queen starts on a black square—thus the mnemonics "queen gets her color", "queen on er wncolor", or "the dress uee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amazon (chess)
The amazon, also known as the queen+knight compound or the dragon, is a fairy chess piece that can move like a queen or a knight. It may thus be considered the sum of all orthodox chess pieces other than the king (because it cannot castle and does not know when it is under threat via the check rule) and the pawn (because it cannot practice en passant). The amazon can force checkmate on an enemy king without the help of any other friendly piece. Chess moves in this article use ''A'' as notation for the amazon. Movement The amazon's movement combines those of the queen and the knight. Thus, it may move to any square on the same rank, file, or diagonal without jumping, or it may move to any of the nearest squares not on the same rank, file, or diagonal. History The amazon is one of the most simply described fairy chess pieces and as such has a long history and has gone by many names. It was first used in Turkish Great Chess, a large medieval variant of chess, where it was ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chess Symbols (Unicode Block)
Chess Symbols is a Unicode block containing characters for fairy chess and related notations beyond the basic Western chess symbols (U+2654 to U+265F) in the Miscellaneous Symbols block, as well as symbols representing game pieces for xiangqi (Chinese chess). Block History The following Unicode-related documents record the purpose and process of defining specific characters in the Chess Symbols block: See also * Chess symbols in Unicode Unicode has text representations of chess pieces. These allow to produce the symbols using plain text without the need of a graphics interface. The inclusion of the chess symbols enables the use of figurine algebraic notation, which replace ... References {{reflist Unicode blocks Unicode blocks with characters for games Xiangqi Fairy chess ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unicode
Unicode or ''The Unicode Standard'' or TUS is a character encoding standard maintained by the Unicode Consortium designed to support the use of text in all of the world's writing systems that can be digitized. Version 16.0 defines 154,998 Character (computing), characters and 168 script (Unicode), scripts used in various ordinary, literary, academic, and technical contexts. Unicode has largely supplanted the previous environment of a myriad of incompatible character sets used within different locales and on different computer architectures. The entire repertoire of these sets, plus many additional characters, were merged into the single Unicode set. Unicode is used to encode the vast majority of text on the Internet, including most web pages, and relevant Unicode support has become a common consideration in contemporary software development. Unicode is ultimately capable of encoding more than 1.1 million characters. The Unicode character repertoire is synchronized with Univers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Larry Kaufman
Lawrence Charles Kaufman (born November 15, 1947) is an American chess player. He was awarded the title Grandmaster by FIDE for winning the 2008 World Seniors Championship (which he later retroactively shared with Mihai Suba). Kaufman had been previously awarded the title International Master in 1980. Background A longtime researcher in computer chess, Kaufman has made several contributions to chess-related works. He helped write the opening book for the pioneering program Mac Hack, co-developed Socrates II and its commercial adaptation, Kasparov's Gambit, edited the journal ''Computer Chess Reports'', and worked on many other research and commercial chess engines. He is also known for his work on computer chess engine Rybka 3, and several books and articles, including "The Evaluation of Material Imbalances". On March 17, 2023, Larry Kaufman announced that he is now a paid consultant for Chess.com for the development of the chess engine Dragon by Komodo Chess. He ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chess With Different Armies
Chess with different armies (or Betza's Chess or Equal Armies) is a chess variant invented by Ralph Betza in 1979. Two sides use different sets of fairy pieces. There are several armies of equal strength to choose from, including the standard FIDE army. In all armies, kings and pawns are the same as in FIDE chess, but the four other pieces are different. Rules and armies Before the game players choose their armies in a certain way, predefined by tournament rules. This can be done either randomly or secretly by both players. Each player has a choice of 4 armies: the ''Fabulous FIDEs'', which are the standard chess pieces, the ''Colorbound Clobberers'', the ''Nutty Knights'', and the ''Remarkable Rookies''. All armies are designed to be equal in strength but have significantly different properties. Kings and pawns move the same as in chess for all armies. Pawns can only promote to pieces of either army on the board at the start. Castling is done as in standard chess with the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Checkmate
Checkmate (often shortened to mate) is any game position in chess and other chess-like games in which a player's king is in check (threatened with ) and there is no possible escape. Checkmating the opponent wins the game. In chess, the king is never actually captured. The player loses as soon as their king is checkmated. In formal games, it is usually considered good etiquette to resign an inevitably lost game before being checkmated. If a player is not in check but has no legal moves, then it is '' stalemate'', and the game immediately ends in a draw. A checkmating move is recorded in algebraic notation using the hash symbol "#", for example: 34.Qg3#. Examples A checkmate may occur in as few as two moves on one side with all of the pieces still on the board (as in fool's mate, in the opening phase of the game), in a middlegame position (as in the 1956 game called the Game of the Century between Donald Byrne and Bobby Fischer), or after many moves with as few as t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Self-play (reinforcement Learning Technique)
Self-play is a technique for improving the performance of reinforcement learning agents. Intuitively, agents learn to improve their performance by playing "against themselves". Definition and motivation In multi-agent reinforcement learning experiments, researchers try to optimize the performance of a learning agent on a given task, in cooperation or competition with one or more agents. These agents learn by trial-and-error, and researchers may choose to have the learning algorithm play the role of two or more of the different agents. When successfully executed, this technique has a double advantage: # It provides a straightforward way to determine the actions of the other agents, resulting in a meaningful challenge. # It increases the amount of experience that can be used to improve the policy, by a factor of two or more, since the viewpoints of each of the different agents can be used for learning. Czarnecki et al argue that most of the games that people play for fun are "Ga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
