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.
Questions relating to the initial moves of the game and their aims
Questions relating to chess engines: any computer program that is able to play/analyze chess positions.
Questions relating to the objective assessment of a position. The assessment may entail which side has the advantage, or what the best move might be.
Questions relating to the rules of chess
Questions related to learning how to play chess and improving your chess skills. This can also be used for questions concerning "learning" chess engines.
Questions relating to the final stages of a game of chess, when only few pieces are left on the board.
Questions relating to reasoning behind a move, plan, or idea
Questions about chess-related software, but not including chess-playing engines; there's a more specific tag for those questions, the [engines] tag.
Theory commonly refers to the erudite study and the philosophy behind the moves in chess (like the opening or endgame theory), but this tag can also be used for questions about the theoretic study of …
Chess problems consist of a board position and a task. Most ask for a line of play that mates black in a set amount of moves, or a combination that results in a winning position. Many other types exis…
Questions relating to checkmating.
Questions relating to maneuvers that take advantage of short-term opportunities, such as forks, discovered attacks, skewers, etc.
for questions relating to the history of chess and chess organizations, whose origins trace to the ancient Indian game of Chaturanga.
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
Stockfish is a strong open-source chess engine.
A number that approximates a player's skill. The actual meaning of the number depends upon the issuing organization. FIDE ratings are used as the international standard for over the board chess
Questions about variants of normal chess including bughouse, Chess960 (Fischer Random), atomic chess, racing kings, crazyhouse, antichess, etc.
Questions about FIDE, the international governing body of chess.
Questions related to all aspects of writing software related to chess.
Questions relating to playing chess on the internet, as opposed to over-the-board chess.
A style of play emphasizing capture of strategic squares and prophylactic moves.
Questions relating to drawing in chess
Questions concerning chess literature.
The Sicilian Defense is the opening given by the moves 1. e4 c5, and it is one of the most popular replies to white's 1. e4.
Questions about game statistics, e.g. the winning percentage of a "line," the probability of some event occurring in a game, or player statistics.
Questions of interest to or relating to new players.
Questions relating to chess training
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].
Questions relating to pawns in chess
Questions related to cognitive, motivational and other psychological aspects of chess, both during and before/after games.
Use when the question is ABOUT the Elo rating system not when it mentions Elo
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.
Questions about the particular terminology used in chess
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…
The grandmaster (GM) title is the highest title awarded by FIDE. It is obtained by both acquiring a 2500 Elo rating, and achieving three "grandmaster norms," tournament performances of a sufficiently …
For questions related to (world) records in chess, e.g. the longest game (in moves or in duration), highest obtained rating, longest mate in n puzzle, etc.