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The Van 't Kruijs[ a] Opening ( Dutch pronunciation: [vɑn ət ˈkrœys]) is a chess opening defined by the move: 1. e3. It is named after the Dutch player Maarten van 't Kruijs (1813–1885) who won the sixth Dutch championship in 1878. As this opening move is rarely played, it is considered an irregular opening, and thus it is classified ...
Zugzwang (from German 'compulsion to move'; pronounced [ˈtsuːktsvaŋ]) is a situation found in chess and other turn-based games wherein one player is put at a disadvantage because of their obligation to make a move; a player is said to be "in zugzwang" when any legal move will worsen their position. [ 1]
This article uses algebraic notation to describe chess moves. The touch-move rule in chess specifies that a player, having the move, who deliberately touches a piece [ a] on the board must move or capture that piece if it is legal to do so. If it is the player's piece that was touched, it must be moved if the piece has a legal move.
In chess, the threefold repetition rule states that a player may claim a draw if the same position occurs three times during the game. The rule is also known as repetition of position and, in the USCF rules, as triple occurrence of position. [ 1] Two positions are by definition "the same" if the same types of pieces occupy the same squares, the ...
The time penalty consists of giving the opponent two minutes extra time in standard chess, [72] or one minute extra time in rapid or blitz. [73] The second stated completed illegal move by the same player results in the loss of the game, [ 72 ] unless the position is such that it is impossible for the opponent to win by any series of legal ...
Castling is the only move in chess in which two pieces are moved at once. [ 3] Castling with the king's rook is called kingside castling, and castling with the queen's rook is called queenside castling. In both algebraic and descriptive notations, castling kingside is written as 0-0 and castling queenside as 0-0-0.
Zwischenzug. The zwischenzug ( German: pronounced [ˈtsvɪʃənˌtsuːk], "intermediate move"; also called an in-between move) is a chess tactic in which a player, instead of playing the expected move (commonly a recapture ), first interposes another move posing an immediate threat that the opponent must answer, and only then plays the expected ...
A game of chess can end in a draw by agreement.A player may offer a draw at any stage of a game; if the opponent accepts, the game is a draw. [1] In some competitions, draws by agreement are restricted; for example draw offers may be subject to the discretion of the arbiter, or may be forbidden before move 30 or 40, or even forbidden altogether.