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On certain Internet chess servers, such as Chess.com and Lichess, this kind of move is marked as an "inaccuracy", denoting a weak move, appearing more regularly than with most annotators. A sacrifice leading to a dangerous attack that the opponent should be able to defend against if they play well may receive a "?!".
Staunton style chess pieces. Left to right: king, rook, queen, pawn, knight, bishop. The rules of chess (also known as the laws of chess) govern the play of the game of chess. Chess is a two-player abstract strategy board game. Each player controls sixteen pieces of six types on a chessboard. Each type of piece moves in a distinct way.
Losing chess [a] is one of the most popular chess variants. [1] [2] The objective of each player is to lose all of their pieces or be stalemated, that is, a misère version. In some variations, a player may also win by checkmating or by being checkmated. Losing chess was weakly solved in 2016 by Mark Watkins as a win for White, beginning with 1.e3.
Chess notation systems are used to record either the moves made or the position of the pieces in a game of chess. Chess notation is used in chess literature, and by players keeping a record of an ongoing game. The earliest systems of notation used lengthy narratives to describe each move; these gradually evolved into more compact notation systems.
In chess, a trap is a move which tempts the opponent to play a bad move. Traps are common in all phases of the game; in the opening, some traps have occurred often enough that they have acquired names.
Adding piece values thus is a first approximation, because one must also consider how well pieces cooperate with each other (e.g. opposite-coloured bishops cooperate very well), and how fast the piece travels (e.g. a short-range piece far away from the action on a large board is almost worthless).
The table contains names for all the pieces as well as the words for chess, check, and checkmate in several languages. [16] Several languages use the Arabic loanword alfil for the piece called bishop in English; in this context it is a chess-specific term which no longer has its original meaning of "elephant".
The Encyclopaedia of Chess Openings (ECO) identifies the Colle System as an uncommon continuation of the Queen's Pawn Game, assigning it the code D05. [a] In the ECO, the Colle system is defined by the line 1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3 c5 5.c3. [1]