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The first edition of the FIDE rule from 1928 already defines the threefold repetition rule without considering castling and en passant capture rights. [44] To additionally consider castling and en passant capture rights was implicitly introduced in 1975 [ 46 ] and explicitly worded in 1985. [ 48 ]
A chess opening book is a book on chess openings. This is by far the most common type of literature on chess . These books describe many major lines, like the Sicilian Defence , Ruy Lopez , and Queen's Gambit , [ 1 ] as well as many minor variations of the main lines.
The Exchange Variation of the Ruy Lopez is a chess opening that begins with the moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6. Black may recapture on c6 with either pawn; although 4...bxc6 is playable, 4...dxc6 is almost always chosen at master level. Black has gained the bishop pair at the cost of a weakened pawn structure, having doubled pawns ...
In that case, both the first and the last edition can be indicated. Authors with five books or more have a sub-section title on their own, to increase the usability of the table of contents. When a book was written by several authors, it is listed once under the name of each author. See: List of chess books (A–F) List of chess books (G–L)
As a general rule, only the original edition should be listed except when different editions bring additional encyclopedic value. Examples of exceptions include: When various editions are different enough to be considered as nearly a different book, for example for opening encyclopedias when each edition is completely revised and has even ...
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.
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.