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Before chess programs achieved master strength, and then became better than the best humans, adjournment was commonly offered in tournaments. When an adjournment is made, the player whose move it is secretly writes their next move on their scoresheet but does not make the move on the chessboard. Both opponents' scoresheets are then placed in ...
A rook is involved in the king's castling move. A bishop can move any number of squares diagonally. A queen combines the power of a rook and bishop and can move any number of squares along a rank, file, or diagonal. A knight moves to any of the closest squares that are not on the same rank, file, or diagonal. (Thus the move forms an "L"-shape ...
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 "?!".
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.
In standard chess, if a move is found during the game, the position immediately before the irregularity is reinstated. [68] In the most used form of rapid chess and blitz chess if the move is found before the opponent moves, the position immediately before the irregularity is also reinstated. [71] [f]
The consensus that White should try to win can be a psychological burden for the White player, who sometimes loses by trying too hard to win. Some symmetrical openings (i.e. those where Black's moves mirror White's) can lead to situations where moving first is a detriment, for either psychological or objective reasons.
In chess and other chess-like games, a tempo (from Italian: tempo, lit. 'time') is a "turn" or single move (a half-move or ply made either by White or Black). When a player achieves a desired result in one fewer move, the player is said to "gain a tempo"; conversely, when a player takes one more move than necessary, the player is said to "lose a tempo".
Chess initial position. The game of chess is commonly divided into three phases: the opening, middlegame, and endgame. [1] There is a large body of theory regarding how the game should be played in each of these phases, especially the opening and endgame.