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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 ...
The term is derived from Latin and literally means "lone king". [10] switchback A piece leaves a square, and then later in the solution returns to it by the same route (for example, a rook moves e3–e5–e3). Cf. round trip, in which the route taken back to the original square is circuitous.
The size of the squares of the chessboard should be approximately 1.25 to 1.3 times the diameter of the base of the king, or 50 to 65 mm. Squares of approximately 57 mm (2 + 1 ⁄ 4 inches) normally are well-suited for pieces with the kings in the preferred size range; four pawns should fit on a square. [92]
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.
In chess, a tactic is a sequence of moves that each makes one or more immediate threats – a check, a material threat, a checkmating sequence threat, or the threat of another tactic – that culminates in the opponent's being unable to respond to all of the threats without making some kind of concession.
Alapin's Opening is an unusual chess opening that starts with the moves: 1. e4 e5 2. Ne2. It is named after the Russo-Lithuanian player and openings analyst Semyon Alapin (1856–1923). Although this opening is rarely used, Ljubojević (as Black) played against it at Groningen in 1970.
The chess machine is an ideal one to start with, since: (1) the problem is sharply defined both in allowed operations (the moves) and in the ultimate goal (checkmate); (2) it is neither so simple as to be trivial nor too difficult for satisfactory solution; (3) chess is generally considered to require "thinking" for skillful play; a solution of ...
This is a list of chess openings that are gambits. ... Spielmann Gambit – B02 – 1.e4 Nf6 2.Nc3 d5 3.e5 Nfd7 4.e6 [8] Cambridge Gambit – B03 ...