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This article covers computer software designed to solve, or assist people in creating or solving, chess problems – puzzles in which pieces are laid out as in a game of chess, and may at times be based upon real games of chess that have been played and recorded, but whose aim is to challenge the problemist to find a solution to the posed situation, within the rules of chess, rather than to ...
A piece in a chess problem that is legally placed and could only have been created through promotion. It does not include pieces promoted after the initial problem position. orthochess Synonym for orthodox chess. [5] orthodox chess Chess according to FIDE's The Official Laws of Chess; [6] see Rules of chess.
Also played in Fairy Chess problems (T.R. Dawson). Nightriderhopper: NH ^n(~1/2) gNN: Fairy Chess problems [1] Move to next square beyond any piece in lines of knight moves. Also known as Knight-line-hopper: O: Okapi: OK ~ 1/2, ~ 2/3: NZ = NJ: Fairy Chess problems: Combination of Knight and Zebra. Invented by Pierre Monréal (1965). Old Monkey ...
Or it may be a one-sided proof game, in which only white makes moves (this is the SPG analogue to the seriesmover in other types of chess problems). An alternative rule-set may also be specified (such as circe chess or losing chess ), or a fairy piece may be substituted for an orthodox piece.
An altered piece used in fairy chess is known as a fairy chess piece. The term fairy chess was introduced by Henry Tate in 1914. Thomas R. Dawson (1889–1951), the "father of fairy chess", [1] invented many fairy pieces and new conditions. He was also problem editor of Fairy Chess Review (1930–1951).
A chess problem, also called a chess composition, is a puzzle set by the composer using chess pieces on a chess board, 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 board position illustrating White's version of fool's mate—with White to mate—was given as a problem in Bobby Fischer Teaches Chess, and also as an early example in a compendium of problems by László Polgár. [5] The solution in Fischer's book bore the comment "Black foolishly weakened his King's defenses. This game took three moves!!"
The King's Gambit is a chess opening that begins with the moves: . 1. e4 e5 2. f4. White offers a pawn to divert the black e-pawn. If Black accepts the gambit, White may play d4 and Bxf4, regaining the gambit pawn with central domination, or direct their forces against the weak square f7 with moves such as Nf3, Bc4, 0-0, and g3.