Lichess is the world-renowned, open-source, completely free online chess server founded in 2010 by French developer Thibault Duplessis. Operating as a non-profit organization without advertisements, subscription paywalls, or commercial tracking, Lichess is universally adored by chess purists for its blazing-fast user interface, ethical design, and unlimited access to premium chess analysis tools.
Lichess provides zero-latency chess matchmaking across all standard time formats: UltraBullet, Bullet, Blitz, Rapid, and Classical chess, alongside thrilling chess variants like Crazyhouse, Chess960 (Fischer Random), King of the Hill, Three-check, and Antichess. Every user on Lichess enjoys completely free, unlimited Stockfish server-side computer game analysis, evaluation graphs, opening explorer databases, and tactical puzzle sets generated directly from real games played on the platform. Lichess also features "Lichess Studies," a collaborative cloud notebook tool used by Grandmasters and coaches worldwide to write and share opening repertoires.
Lichess stands as a shining beacon of open-source internet philosophy, proving that world-class software can thrive purely through community donations and volunteer passion. Its clean, clutter-free minimalist design and rock-solid server performance during massive arena tournaments make Lichess a sacred haven for serious chess players globally.
To maximize your improvement on Lichess, make extensive use of the "Learn from your mistakes" button following post-game Stockfish analysis to replay positions where you committed blunders. Create custom study boards in Lichess Studies to document your personal opening preparation against common defenses. Participate in hourly Lichess Arena tournaments where scoring consecutive wins activates the "Berserk" mode, rewarding bonus tournament points for brave time sacrifices.