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
Four-player chess Four-player chess Four-player chess (also known as Four-handed, Four-man, or Four-way chess) is a family of chess variants typically played with four people. A special board made of standard 8×8 squares with an additional 3 rows of 8 cells extending from each side is common. Four sets of differently colored pieces are needed to play these variants. Four-player chess follows the same basic rules as regular chess. There are many different rule variations; most variants, however, share the same board and similar piece setup. Gameplay can be in teams, but it can also be a free-for-all, with each player out