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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.
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 ...
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.
The Encyclopaedia of Chess Openings classifies the King's Indian Defence under the codes E60 through E99. The King's Indian is a hypermodern opening, where Black deliberately allows White control of the centre with pawns, with the view to subsequently challenge it. In the most critical lines of the King's Indian, White erects an imposing pawn ...
The Encyclopaedia of Chess Openings (ECO) identifies the Colle System as an uncommon continuation of the Queen's Pawn Game, assigning it the code D05. [a] In the ECO, the Colle System is defined by the line 1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3 c5 5.c3. [1] Paul van der Sterren gives an identical definition, with the same moves played in the same ...
The Scandinavian Defense, described in the poem Scachs d'amor, is the oldest opening by Black recorded in modern chess. [1] Considered to be the most directly challenging move available to Black after 1.e4, the general goal of the defense is to prevent White from controlling the center of the board with pawns, effectively forcing an open game ...
The London System is an opening system in chess where White opens with 1.d4 and develops the dark-squared bishop to f4, then supports the d4-pawn with pawns on e3 and c3. The other bishop is developed to d3 (or occasionally e2) and the knights typically to f3 and d2.
If White plays an early c4, the opening will transpose to a number of more common queen pawn openings, such as the Queen's Gambit or one of the various Indian defences. The opening is named after the Mexican grandmaster Carlos Torre Repetto , who beat former World Champion Emanuel Lasker with it. [ 1 ]