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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 openings were published in five volumes of ECO, with volumes labeled ...
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.
The most important scheme of classifying chess openings for serious players is by ECO code, a series of 500 opening codes assigned by the Encyclopaedia of Chess Openings. Although these codes are invaluable for the serious study of the chess opening, they are not very practical for a broad survey of the chess opening as the codes obscure common ...
This is a list of chess openings that are gambits. The gambits are organized into sections by the parent chess opening, giving the gambit name, ECO code, and defining moves in algebraic chess notation .
The Ruy Lopez (/ r ɔɪ, ˈ r uː i /; Spanish: [ˈruj ˈlopeθ]), [1] also called the Spanish Opening or Spanish Game, is a chess opening characterised by the moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5. The Ruy Lopez is named after 16th-century Spanish priest Ruy López de Segura. It is one of the most popular openings, with many variations.
A chess opening theory table or ECO table (Encyclopaedia of Chess Openings) presents lines of moves, typically (but not always) from the starting position. Notated chess moves are presented in the table from left to right. Variations on a given line are given horizontally below the parent line.
A common opening sequence is 1.d4 Nf6 2.c4 e6 3.g3, although various other openings can transpose into the Catalan. The Encyclopaedia of Chess Openings (ECO) lists codes E01–E09 for lines with 1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2; other lines are part of E00. In the Catalan, White adopts a combination of the Queen's Gambit and Réti Opening. White ...
The Encyclopaedia of Chess Openings includes an alphanumeric classification system for openings that is widely used in chess literature. Codes C00 to C19 are the French Defence, broken up in the following way (all apart from C00 start with the moves 1.e4 e6 2.d4 d5): C00 – 1.e4 e6 without 2.d4, or 2.d4 without 2...d5 (early deviations)