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^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: 1X, 1< FbW: Maka dai dai shogi and other large Shōgi variants ...
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.
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.
It may involve changes to the board, pieces, or rules to express an idea or theme impossible in orthodox chess. 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 ...
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 ...
While a chess puzzle is any puzzle involving aspects of chess, a chess problem is an arranged position with a specific task to be fulfilled, such as White mates in n moves. Chess problems are also known as chess compositions because the positions are specially devised, rather than arising from actual games. Chess problems are divided into ...
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.
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).