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Portable Game Notation (PGN) is a text-based file format for storing chess games, which uses standard English algebraic notation and a small amount of markup. [11] PGN can be processed by almost all chess software, as well as being easily readable by humans.
The notation for chess moves evolved slowly, as these examples show. The last is in algebraic chess notation; the others show the evolution of descriptive chess notation and use spelling and notation of the period. 1614: The white king commands his owne knight into the third house before his owne bishop. 1750: K. knight to His Bishop's 3d.
In addition, queenside castling is initially obstructed by more pieces than kingside castling, thus taking longer to set up than kingside castling. On the other hand, queenside castling places the rook more efficiently on the central d-file, where it is often immediately active; meanwhile, with kingside castling, a tempo may be required to move ...
castling types. Usually the king's castling target is either two squares away from the left (white) border or one square from the right border. But there are also variants having symmetrically distributed target squares (e.g. Janus Chess), both a single field distant each. Then an additional "s" has to precede the castling tokens.
However, the FEN castling availability encoding (KQkq) is inadequate when both rooks are on the same side of the king on the back rank (as a result of one rook having moved, or in a form of randomised chess that allows it in a starting position): if either rook is still available for castling, it would be ambiguous which rook this is without ...
There are other symbols used by various chess engines and publications, such as Chess Informant and Encyclopaedia of Chess Openings, when annotating moves or describing positions. [8] Many of the symbols now have Unicode encodings, but quite a few still require a special chess font with appropriated characters.
This glossary of chess explains commonly used terms in chess, in alphabetical order.Some of these terms have their own pages, like fork and pin.For a list of unorthodox chess pieces, see Fairy chess piece; for a list of terms specific to chess problems, see Glossary of chess problems; for a list of named opening lines, see List of chess openings; for a list of chess-related games, see List of ...
SAN kingside castling is indicated by the sequence O-O; queenside castling is indicated by the sequence O-O-O (note that these are capital Os, not zeroes, contrary to the FIDE standard for notation). [4] Pawn promotions are notated by appending = to the destination square, followed by the piece the pawn is promoted to. For example: e8=Q.