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A skewer is the opposite of a pin; the difference is that in a skewer, the more valuable piece is the one under direct attack and the less valuable piece is behind it. [ 1 ] [ 2 ] The opponent is compelled to move the more valuable piece to avoid its capture, thereby exposing the less valuable piece which can then be captured (see chess piece ...
In chess, an X-ray or X-ray attack is a tactic where a piece indirectly controls a square from the other side of an intervening piece. Generally, a piece performing an X-ray either: effects a skewer, [1] [2] [3] indirectly attacks an enemy piece through another piece or pieces, or; defends a friendly piece through an enemy piece.
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 .
See chess clock. game score Often shortened to score. The record of a game in some form of notation, usually algebraic notation. In over-the-board tournaments, the game score is recorded on a score sheet. [190] gardez [from French: gardez la reine!, "Protect the Queen!"] An announcement to the opponent that their queen is under direct attack ...
Cylinder chess – played on a cylinder, which results in joining the right and left sides of the board. Circular chess – variant played on a circular board. Alice Chess – played with two boards, one of which starts empty. After the completion of each move, the piece that moved is transferred to the same square of the other board (after a ...
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.
In contemporary chess, a digital board is a chess board connected to a computer that is capable of transmitting the moves to the computer itself: the information about the moves can be used to play a game against a chess engine, or simply to record the moves sequence of a game in automatic.
The above type of problems are usually considered orthodox, in the sense that the standard rules of chess are observed. Fairy chess problems, also called heterodox problems, involve altered rules, such as the use of unconventional pieces or boards, or stipulations that contradict the standard rules of chess such as reflexmates or seriesmovers.