LibreChess · Chess, explained simply

Keep your openings ready

Add opening lines on an interactive board, then review whichever lines are due. A first correct recall sets a one-day interval, a second sets three days, and later successes use an ease-scaled interval; a miss makes the line due immediately and lowers its ease factor.

No account is needed. Your lines and review schedule are written to this browser when its local storage is available; export the JSON backup before clearing site data or changing browsers.

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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