The chess clock, also known as the fast chess timer, is usually used to limit the player's time in official matches. Chess clocks are generally mechanical or electronic electronic tools, with a certain weight and inconvenience, and different chess types, timing rules are also different. This chess clock app includes the timing rules of the three most mainstream chess types of Chinese chess, chess and Go. Powerful, support device horizontal and vertical screen rotation. When you need to play fast chess with your friends, you don't need a chess clock, just pull out your mobile phone and quickly play a fast chess game.