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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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any machine or computer program that plays chess.
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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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Questions related to learning how to play chess and improving your chess skills. This can also be used for questions concerning "learning" chess engines.
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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 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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Questions relating to the rules of chess
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the erudite study and the philosophy behind the moves in chess.
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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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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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Questions relating to checkmating.
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Questions about variants of normal chess including bughouse, Chess960 (Fischer Random), atomic chess, and antichess.
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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 relating to the history of chess, whose origins trace to the ancient Indian game of Chaturanga.
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a strong open-source chess engine.
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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 concerning chess literature.
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Questions relating to playing chess on the internet
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A problem in which a tactical or positional solution is required, like 'White move and gives mate in two'.
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Questions related to all aspects of writing software related to chess.
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A style of play emphasizing capture of strategic squares and prophylactic moves.
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Questions of interest to or relating to new players.
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Questions about FIDE, the international governing body of chess.
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the most widely-used method for comparing chess player strengths.
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Questions relating to drawing in chess
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Questions relating to chess training
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A set of chess games, distributed as a stand-alone product or as part of a bundle of chess software. For endgame databases, use the [tablebases] tag instead.
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Questions related to cognitive, motivational and other psychological aspects of chess, both during and before/after games.
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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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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 relating to the Pawn
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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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refers to chess games played by computers. If you want to ask a question about those games, use this tag. Otherwise, use the tag [engines].
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A chess problem consists of a board position and a task. Most often the problem asks to find a line of play that mates black in a given number of moves, or to find a combination that guarantees a winn…
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The evaluation of a given position