LibreChess · Chess, explained simply

Finish the checkmate

Work through 220 mate-in-one, mate-in-two, and mate-in-three positions. Endgame practice uses checked winning starts for queen mate, rook mate, non-rook king-and-pawn wins, and the opposite-colour bishop pair, with replies chosen by a short local Stockfish search.

Move counts are practice targets rather than claims of optimal play. The board stops at stalemate and when the threefold-repetition or fifty-move claim threshold is reached. Progress is saved locally when browser storage is available.

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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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