Bullet chess
Bullet chess is the fastest common format, with each player having under three minutes, usually one minute, so success depends on speed, mouse control and instant tactical vision.
Also called: bullet
Bullet games give each player one or two minutes, sometimes with a second or two added per move. A whole game may last only a few minutes. At that speed you are mostly playing by habit, so opening knowledge and basic tactics matter, and so does how fast and accurately you move.
Many online players enjoy bullet, and it can sharpen reactions. But it teaches little about long term planning, and it can make a player depend on speed rather than judgment. A game is often decided by the clock rather than the position, because a player with a worse position can still win by moving faster.
If you play it, keep it as a side activity. Premoves, which are moves entered in advance, are a normal part of bullet online, and learning to use them helps. Avoid letting it replace slower practice, since studying positions carefully and playing longer games build the skills that carry into classical tournaments. Treat the result as fun rather than as a measure of your real chess strength.
A neighboring idea is Hyperbullet. Hyperbullet is an extremely fast online format with only a few seconds, often fifteen or thirty, for the whole game, where reflexes and premoves matter more than thought.
A neighboring idea is Time odds. 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 Blitz chess. Blitz chess is a fast format where each player has about three to ten minutes for the whole game, so decisions rely heavily on pattern recognition and quick tactics.
Time controls change what a player should practice, and the improvement plans by rating band show how the habits behind "Bullet chess" differ across rating ranges.
Related terms
A time control is the rule that sets how much thinking time each player gets in a game, and whether extra time is added per move, which decides what kind of chess is being played.
Blitz chess is a fast format where each player has about three to ten minutes for the whole game, so decisions rely heavily on pattern recognition and quick tactics.
Hyperbullet is an extremely fast online format with only a few seconds, often fifteen or thirty, for the whole game, where reflexes and premoves matter more than thought.
A premove is a move entered on an online board before the opponent has replied, which is played automatically as soon as it becomes your turn if it is still legal.
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.
Flagging is winning, or claiming to win, on time because an opponent's clock has run out; the flag-fall loses the game unless the other side could never checkmate.
Guides that go further
See whether a base time and increment counts as bullet, blitz, rapid or classical.
Average chess rating and a good chess rating
What share of active Lichess players are rated above 800, 1200, 1500, 1800 or 2000, by time control.
What a rating measures, how FIDE, Lichess, US Chess and chess.com compute theirs, and why the numbers differ.
Want to spot this in your own games?
A first lesson starts with your games: George reviews them and builds a study plan around what he finds.