--- title: "Chess variant" url: "https://georgelichess.com/glossary/chess-variant.md" canonical_url: "https://georgelichess.com/glossary/chess-variant" last_updated: "2026-11-07" type: "reference" summary: "A chess variant is a game played on a chessboard with pieces that move as in chess but with at least one changed rule, setup or goal, such as Chess960." related: ["https://georgelichess.com/glossary/crazyhouse.md", "https://georgelichess.com/glossary/bughouse.md", "https://georgelichess.com/glossary/king-of-the-hill.md", "https://georgelichess.com/glossary/three-check-chess.md", "https://georgelichess.com/glossary/chess960.md", "https://georgelichess.com/glossary/category/time-controls.md", "https://georgelichess.com/glossary.md"] --- # Chess variant > **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. A chess variant is a game played on a chessboard with pieces that move as in chess but with at least one changed rule, setup or goal, such as Chess960. A chess variant is a game played on a chessboard with pieces that move as in chess but with at least one changed rule, setup or goal, such as Chess960, Crazyhouse or Three-check. A chess variant keeps the board and most of the pieces of ordinary chess but alters something important. The change can be the [starting position](https://georgelichess.com/glossary/starting-position.md), as in [Chess960](https://georgelichess.com/glossary/chess960.md) where the back rank is shuffled, the way pieces enter play, as in [Crazyhouse](https://georgelichess.com/glossary/crazyhouse.md), or the winning condition, as in [King of the Hill](https://georgelichess.com/glossary/king-of-the-hill.md) or [Three-check](https://georgelichess.com/glossary/three-check-chess.md). Many websites offer variants alongside standard chess, and some tournaments and online events feature them. Variants are good fun and can sharpen certain skills. Chess960 reduces memorized opening theory, so it rewards general principles such as development, [king safety](https://georgelichess.com/glossary/king-safety.md) and piece activity. Games with unusual goals teach you to calculate forcing lines carefully because the usual assumptions about safety no longer hold. For a student working toward a rating in standard chess, variants are a pleasant supplement rather than a substitute. Opening knowledge, endgame technique and the tactical patterns you drill are specific to the standard rules, and some habits from a variant can mislead you in a normal game. Treat variants as a way to stay curious and loosen up, and keep your serious study time on standard chess, especially before a rated event. Also called: variants. Compare it with [Horde chess](https://georgelichess.com/glossary/horde-chess.md). Horde chess is a variant in which White has a large mass of pawns instead of the usual army, while Black plays with the normal set of pieces, and Black tries to capture them all. It sits close to [Bughouse](https://georgelichess.com/glossary/bughouse.md). Bughouse is a four-player chess variant on two linked boards, where each capture hands the taken piece to your partner, who may later place it on their own board instead of making a move. If "Chess variant" 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 - [Crazyhouse](https://georgelichess.com/glossary/crazyhouse.md) - [Bughouse](https://georgelichess.com/glossary/bughouse.md) - [King of the Hill](https://georgelichess.com/glossary/king-of-the-hill.md) - [Three-check chess](https://georgelichess.com/glossary/three-check-chess.md) - [Chess960](https://georgelichess.com/glossary/chess960.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 - [Crazyhouse in chess](https://georgelichess.com/glossary/crazyhouse.md) - [Bughouse in chess](https://georgelichess.com/glossary/bughouse.md) - [King of the Hill in chess](https://georgelichess.com/glossary/king-of-the-hill.md) - [Three-check chess](https://georgelichess.com/glossary/three-check-chess.md) - [Chess960](https://georgelichess.com/glossary/chess960.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)