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Glossary Chess / Term

Bronstein Delay

A time control method with time delay, invented by David Bronstein. When it becomes a player's turn to move, the clock waits for the delay period before starting to subtract from the player's remaining time.


Bronstein delay (named after Grandmaster David Bronstein who invented it) is a timing method which adds time but unlike increment not always the maximum amount of time is added. If a player expends more than the specified delay, then the entire delay is added to the player's clock but if a player moves faster than the delay, only the exact amount of time expended by the player is added. For example, if the delay is ten seconds and a player uses ten or more seconds for a move, ten seconds is added after they complete their move. If the player uses five seconds for a move, five seconds is added after they complete their move. This ensures that the main time left on the clock can never increase even if a player makes fast moves. As with increment, the delay time is applied to the first move under FIDE and US Chess rules.

Permanent link Bronstein Delay - Creation date 2021-12-25


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