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This is a list of chess openings, organised by the Encyclopaedia of Chess Openings (ECO) code classification system.The chess openings are categorised into five broad areas ("A" through "E"), with each of those broken up into one hundred subcategories ("00" through "99").
The opening is the initial stage of a chess game. It usually consists of established theory.The other phases are the middlegame and the endgame. [1] Many opening sequences, known as openings, have standard names such as "Sicilian Defense".
The following rules are applicable to games in organized tournaments and matches, sanctioned by FIDE. They mention timing (chess clocks), arbiters (or, in USCF play, directors), keeping score, and adjournment. The FIDE Laws of Chess define the rules for standard chess, rapid chess, blitz chess, and guidelines for Chess960.
The Marshall Attack (also called the Marshall Gambit) is a chess opening characterised by the moves: . 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5. The Marshall Attack is an aggressive line in the Ruy Lopez, where Black sacrifices a pawn by playing d5 to gain initiative and a kingside attack.
An Open Game (or Double King's Pawn Opening) is a generic term for a family of chess openings beginning with the moves: 1. e4 e5. 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.
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 Yugoslavian company Šahovski Informator (Chess Informant). It is currently undergoing its fifth edition.
[10] The previous month, Nakamura had played 2.Qh5 against GM Nikola Mitkov at the April 2005 HB Global Chess Challenge in Minneapolis. The game ended in a draw after 55 moves. [11] More often the opening is adopted by chess novices, as when actor Woody Harrelson played it against Garry Kasparov in a 1999 exhibition game in Prague. [12]
According to Jim Bickford, [1] one of the characteristics of this defense is the "cork-screw" maneuver the knight makes by traveling to the second rank via f6 and h5. In the introduction to his monograph, Bickford quotes the late Tony Miles as saying "The black knights are better on the second rank – a shame it takes two moves for them to get there."