A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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Questions relating to the first few moves in a game
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Questions related to determining the Truth behind positions. This includes who is winning, what the next move should be, and what happens when a certain move is played.
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any machine or computer program that plays chess.
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Questions related to learning how to play chess
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Questions relating to strategical play and long term planning in chess
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Questions about chess-related software, but not including chess-playing engines; there's a more specific tag for those questions, the [engines] tag.
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the erudite study and the philosophy behind the moves in chess.
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the part of the game when there are only a few pieces left on the board. Usually play revolves around one or both players trying to promote a pawn. Alternatives are the opening an…
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Questions relating to the rules of chess
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A number that approximates a player's skill. The actual meaning of the number depends upon the issuing organization. Common issuers include the USCF and FIDE.
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the concrete maneuvers (e.g. forking two pieces with a knight, pinning a piece to the opponent's king, or unleashing a discovered check) that chess players use and combine in order to achi…
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Questions relating to the history of chess, whose origins trace to the ancient Indian game of chaturanga.
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A series of chess games between a number of player, who compete for a set of prizes. Chess tournaments are of different formats and categories, and they can be open or by invitation only
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Questions about variants of normal chess including bughouse, Chess960 (Fischer Random), atomic chess, and antichess.
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Questions relating to checkmating.
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the most widely-used method for comparing chess player strengths.
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the opening given by the moves 1. e4 c5, and it is one of the most popular replies to white's 1. e4.
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Questions relating to drawing in chess
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A style of play emphasizing capture of strategic squares and prophylactic moves.
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Questions about game statistics, e.g. the winning percentage of a "line," the probability of some event occurring in a game, or player statistics.
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Questions concerning chess literature.
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Questions relating to playing chess on the internet
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Questions relating to chess training
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Questions relating to the Pawn
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A problem in which a tactical or positional solution is required
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Questions of interest to or relating to new players.
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a strong open-source chess engine.
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Data set of chess games.
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Questions about FIDE, the international governing body of chess.
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PGN stands for Portable Game Notation. This is a file format for storing chess games (both the moves and various header data such as players' names) that is easily read by people while also easy for …
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Questions about the middlegame. The middlegame is the stage of the game after the opening has been completed and most of the pieces have been developed, but before the endgame. In the middlegame…
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The evaluation of a given position
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For all questions related to the World Chess Championship: its holders, contestants, history, etc.
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Questions related to all aspects of writing software related to chess.
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Questions relating to psychological influence on an opponent during a game.
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Questions relating to well-known chess players.