Chess clock Chess clock A chess clock consists of two adjacent clocks with buttons to stop one clock while starting the other, so that the two clocks never run simultaneously. Chess clocks are used in chess and other two-player games where the players move in turn. The purpose is to keep track of the total time each player takes for their own moves, and ensure that neither player overly delays the game. Chess clocks were first used extensively in tournament chess, and are often called game clocks. The first time that game clocks were used in a chess tournament was in the
Chess with different armies rook replacement to c1. This is so colorbound pieces don't change square color. Many pieces in the following armies are combination of standard chess pieces and 4 fairy pieces: "ferz", "alfil", "wazir" and "dabbaba" (see their movement diagrams above). The game can be played with standard chess pieces and the following move diagrams use standard pieces as well (except queens). In this army, rooks, knights, bishops, and queen are replaced by the following pieces: As mentioned, when using this army and castling queenside, the king moves "three" squares (from e1 to b1) and the bede moves from a1 to c1.