Editing Chess (section)

===Time control===
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In competition, chess games are played with a [[time control]]. Time controls are generally divided into categories based on the amount of time given to each player, which range from classical time controls, which allot about 2 hours or more to each player and which can take upwards of seven hours (even longer if [[adjournment (chess)|adjournments]] are permitted), to [[bullet chess]], in which players receive less than three minutes each. Between these are [[rapid chess]] (ten to sixty minutes per player), popular in amateur tournaments, and [[blitz chess]] (three to ten minutes), popular online. Non-classical chess is sometimes referred to as [[fast chess]].

Time is controlled using a [[chess clock]] with two displays, one for each player's remaining time. Analog chess clocks have been largely replaced by digital clocks, which allow for time controls with increments.

There are some aspects unique to online chess. A [[premove]] allows a player to submit a move on the opponent's turn, which gets played automatically if possible using little to no time. Premoves, alongside the relative ease of digital inputs, make [[ultrabullet|faster time controls]] feasible online.

Time controls are also enforced in [[correspondence chess]] competitions. A typical time control is 50 days for every 10 moves. Time is usually allotted per move in online correspondence chess.