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
Game of the Three Friends Game of the Three Friends Game of the Three Friends (Chinese: , "Sān-yǒu-qí" ; also called Sanyou Qi or Three Friends Chess) is a three-player variant of the game xiangqi ("Chinese chess"). It was invented by Zheng Jinde (Chinese: , "Zhèng Jìndé") during the Qing Dynasty (1661–1722 AD). The game symbolizes the Three Kingdoms period war (221–264 AD) between the rival states Wei, Shu, and Wu, each vying for control of China after the fall of the Han Dynasty. The Three Friends are represented by colors blue, red, and green, respectively. Each player controls all the standard xiangqi pieces, with