What are time controls?
Time controls refer to the amount of total time each player has to complete the game. Time controls are used in conjunction with chess clocks for two reasons. First, time controls insure that a round ends after a reasonable amount of time. Second, the use of the chess clock insures that one competitor cannot use a larger percentage of the time allotted for the game. Time controls are generally stated as G/xx, where the xx is the number of minutes each player is allowed for completing the game.
