Interactive Chess Analysis Board Online

Analyze chess positions and games with modern multi-threaded Stockfish directly in your web browser. Explore candidate variations, evaluate piece moves, and explore grandmaster openings with the integrated Lichess Masters database.

Analysis Features

Multi-Line Candidate Variations (MultiPV): Stream top engine lines in real time to understand the best options in every position.
Master Opening Database: Browse historical win rates and games played by master-level chess players.
Play vs Practice Bots: Test your skills against computer opponents across multiple ratings (500 to 3200+) and playstyles.
Branching Move Tree: Explore alternative variations and 'what-if' moves freely.