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In the center are the two openings included in the volume: 1.d4 Nf6 2.c4 e6; and 1.d4 Nf6 2.c4 g6 without (symbol ┘) an early ...d7–d5. The Encyclopaedia of Chess Openings ( ECO) is a reference work describing the state of opening theory in chess, originally published in five volumes from 1974 to 1979 by the Serbian company Šahovski ...
Claude Shannon. The Shannon number, named after the American mathematician Claude Shannon, is a conservative lower bound of the game-tree complexity of chess of 10 120, based on an average of about 10 3 possibilities for a pair of moves consisting of a move for White followed by a move for Black, and a typical game lasting about 40 such pairs of moves.
Chess annotation symbols. When annotating chess games, commentators frequently use widely recognized annotation symbols. Question marks and exclamation points that denote a move as bad or good are ubiquitous in chess literature. [ 1] Some publications intended for an international audience, such as the Chess Informant, have a wide range of ...
The Barnes Opening (sometimes called Gedult's Opening) is a chess opening where White opens with: . 1. f3. The opening is named after Thomas Wilson Barnes (1825–1874), an English player who had an impressive [1] eight wins over Paul Morphy, including one game where Barnes answered 1.e4 with 1...f6, known as the Barnes Defence.
Four-player chess (also known as four-handed chess) is a family of chess variants played with four people. The game features a special board typically made of a standard 8×8 square, with 3 rows of 8 cells each extending from each side, and requires two sets of differently colored pieces. The rules are similar to, but not the same as, regular ...
Algebraic notation is the standard method for recording and describing the moves in a game of chess. It is based on a system of coordinates to uniquely identify each square on the board. [ 1 ] It is now almost universally used by books, magazines, newspapers and software, and is the only form of notation recognized by FIDE, the international ...
Open Game. An Open Game (or Double King's Pawn Opening) is a generic term for a family of chess openings beginning with the moves: White has moved the king's pawn two squares and Black has replied in kind. The result is an Open Game. Other responses to 1.e4 are termed Semi-Open Games or Single King's Pawn Games.
Contents. Template:Chess diagram 4x4. These templates shows a chess diagram, a graphic representation of a position in a chess game, using standardised symbols resembling the pieces of the standard Staunton chess set. The default template for a standard chess board is {{ Chess diagram }}. This documentation covers all related templates.