LibreChess · Chess, explained simply

Play chess against Stockfish

Choose one of five relative Stockfish difficulty settings or one of six presets that favor different kinds of candidate move. These labels describe settings inside LibreChess; they are not chess rating estimates. Pass-and-play lets two people share the same device.

Optional clocks range from one minute to 30 minutes. You can request a hint, show the evaluation bar, and follow the opening name as moves are played. When browser storage is available, finished games are added to the local archive for later review.

Review a game privately in your browser — no account required.

Explore LibreChess

• Rules — The core playing rules explained: board setup, piece movement, castling, en passant, promotion, check, mate, and draws.
• Learn — An ordered four-stage path from the rules and first games through club play and advanced strategy.
• Strategy — Practical lessons on plans, pawn structures, weak squares, active pieces, calculation, and learning from your own games.
• Tactics — Forks, pins, skewers, and checkmate patterns, with worked examples and an adaptive puzzle trainer.
• Openings — Substantial opening-family guides, ECO catalogues, exact move-order references, and repertoire practice.
• Tools — Free in-browser chess tools: board editor, Stockfish analysis, PGN viewer, FEN builder, and a draw checker.
• Games — Classic chess games with PGN, move-by-move scores, and daily guess-the-move training.
• Ratings — What chess ratings mean, how Elo works, what the master titles require, and blitz vs rapid vs classical.
• Printables — Print-ready cheat sheets: the rules, how the pieces move, board setup, notation, and checkmate patterns.
• Methodology — How LibreChess verifies positions and grades moves: the engine, the data sources, the documented verification steps, and their limits.

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