Lichess: Free Online Chess Server

Lichess is a free, open-source chess server that offers a variety of ways to play chess, including: * **Playing against others:** Quick pairing, lobby, correspondence, various time controls * **Playing against the computer:** Different difficulty levels * **Tournaments:** Arena tournaments, Swiss tournaments, simultaneous exhibitions * **Puzzles:** Daily puzzles, puzzle themes, puzzle dashboard, puzzle streak, puzzle storm, puzzle racer * **Learning:** Chess basics, practice, coordinates, study, coaches * **Watching:** Broadcasts, Lichess TV, current games, streamers, video library * **Community