--- title: "Sudden death in chess" url: "https://georgelichess.com/glossary/sudden-death.md" canonical_url: "https://georgelichess.com/glossary/sudden-death" last_updated: "2026-11-07" type: "reference" summary: "Sudden death is a time control in which each player has one fixed amount of time for the whole game, with no extra time added." related: ["https://georgelichess.com/glossary/armageddon.md", "https://georgelichess.com/glossary/time-control.md", "https://georgelichess.com/glossary/increment.md", "https://georgelichess.com/glossary/delay.md", "https://georgelichess.com/glossary/chess-clock.md", "https://georgelichess.com/glossary/time-scramble.md", "https://georgelichess.com/glossary/category/time-controls.md", "https://georgelichess.com/glossary.md"] --- # Sudden death in chess > **For AI agents:** the complete index of GeorgeLiChess pages is [llms.txt](https://georgelichess.com/llms.txt). Every page is also served as markdown at its URL plus .md. Sudden death is a time control in which each player has one fixed amount of time for the whole game, with no extra time added. Sudden death is a time control in which each player has one fixed amount of time for the whole game, with no extra time added, so a player whose clock reaches zero loses on time. In a sudden death [time control](https://georgelichess.com/glossary/time-control.md), each player receives a single block of time, for example fifteen minutes, to play every move of the game. There is no [increment](https://georgelichess.com/glossary/increment.md), no delay and no second period after a set number of moves. When your clock reaches zero you lose, unless your opponent cannot possibly [checkmate](https://georgelichess.com/glossary/checkmate.md) you, in which case the game is a draw. This is different from many classical time controls, which add time after a certain move number or after every move. Under sudden death, you must budget your minutes from the first move, because slow [opening](https://georgelichess.com/glossary/opening.md) thinking can leave you with too little for the ending. Positions that are completely winning on the board can be lost simply by running out of time. Sudden death is common in school tournaments, club rapid events and quick weekend sections, where organizers need a firm end time for each round. The phrase is also used for a [tiebreak](https://georgelichess.com/glossary/tiebreak.md) game that ends the match immediately, which is the idea behind [Armageddon](https://georgelichess.com/glossary/armageddon.md). Students should learn to move quickly in simple positions and save their time for critical moments. Also called: sudden death time control. Also worth reading is [Rapid playoff](https://georgelichess.com/glossary/rapid-playoff.md). A rapid playoff is a short extra game or mini match, played at a faster time control, that decides the winner after players tie in a tournament or match. It sits close to [Time odds](https://georgelichess.com/glossary/time-odds.md). Time odds is a handicap in which one player is given less time on the clock than the other, so a stronger player can face a weaker one in a more balanced game. A neighboring idea is [Time scramble](https://georgelichess.com/glossary/time-scramble.md). A time scramble is the stage of a game when one or both players are very short of time and must play many moves quickly, often leading to mistakes and sudden reversals. If "Sudden death" is the format you play most, the [improvement plans by rating band](https://georgelichess.com/improve.md) give a weekly routine for your rating range. ## Related terms - [Armageddon](https://georgelichess.com/glossary/armageddon.md) - [Time control](https://georgelichess.com/glossary/time-control.md) - [Increment](https://georgelichess.com/glossary/increment.md) - [Delay](https://georgelichess.com/glossary/delay.md) - [Chess clock](https://georgelichess.com/glossary/chess-clock.md) - [Time scramble](https://georgelichess.com/glossary/time-scramble.md) ## Guides that go further - [Chess time control calculator](https://georgelichess.com/tools/time-control-calculator.md): See whether a base time and increment counts as bullet, blitz, rapid or classical. - [Average chess rating and a good chess rating](https://georgelichess.com/chess-rating-percentiles.md): What share of active Lichess players are rated above 800, 1200, 1500, 1800 or 2000, by time control. - [Chess ratings explained](https://georgelichess.com/chess-ratings-explained.md): What a rating measures, how FIDE, Lichess, US Chess and chess.com compute theirs, and why the numbers differ. [Book your first lesson](https://georgelichess.com/book.md) and George Li reviews your games and builds a study plan around them. Questions about lessons: write to hello@georgelichess.com. ## Related - [Armageddon in chess](https://georgelichess.com/glossary/armageddon.md) - [Time control in chess](https://georgelichess.com/glossary/time-control.md) - [Increment in chess](https://georgelichess.com/glossary/increment.md) - [Delay in chess](https://georgelichess.com/glossary/delay.md) - [Chess clock](https://georgelichess.com/glossary/chess-clock.md) - [Time scramble in chess](https://georgelichess.com/glossary/time-scramble.md) - [Chess terms: Time controls and formats](https://georgelichess.com/glossary/category/time-controls.md) - [Chess terms glossary: plain definitions](https://georgelichess.com/glossary.md)