Lichess
Free, ad-free, open-source chess platform with millions of daily games
À propos de Lichess
Lichess is a free, open-source chess server that offers ad-free gameplay, real-time analysis, and community features. With over five million games played daily, it provides tools for learning, coaching, and competitive play. The platform is maintained by volunteers and funded through donations, ensuring a sustainable, player-focused experience.
FAQ
Lichess is powered by donations from patrons and the efforts of volunteers. You can contribute by becoming a patron or volunteering your time and skills.
Some Lichess pages have keyboard shortcuts. Press the '?' key on a study, analysis, puzzle, or game page to list available shortcuts.
One minute after a player is marked as a cheater, their 40 latest rated games in the last 5 days are reviewed. If you lost rating in one of those games and your rating was not provisional, you may receive a refund, capped at 150 points.
If your opponent frequently leaves games, they may receive a 'play ban,' temporarily preventing them from playing. Repeated behavior can lead to account closure.
Yes, an opening book is allowed in correspondence chess on Lichess, but using engines is prohibited and will result in being flagged for engine assistance.
Lichess time controls are based on estimated game duration, calculated as (clock initial time in seconds) + 40 × (clock increment). For example, a 5+3 game has an estimated duration of 420 seconds.
ACPL measures the quality of play by calculating the average loss in centipawns per move. Lower ACPL indicates stronger play, as it reflects fewer mistakes. The analysis is powered by Stockfish.
To verify your FIDE title, complete the verification form with a clear image of an identifying document and a selfie holding the document. Verified titles grant access to Titled Arena events.
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