You play White against a real alpha-beta engine — full rules with castling, en passant and promotion. Checkmate the AI king.
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Choose a difficulty to start.
♞
Chess
Full rules: castling, en passant, promotion, checkmate, stalemate, threefold-repetition and insufficient-material draws. You are White.
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How to play
You play White (bottom). Tap a piece — its legal moves glow green (captures glow red) — then tap a destination.
Full rules: castling (king + rook, neither moved, path clear and unattacked), en passant, and promotion (choose Queen, Rook, Bishop or Knight).
Checkmate wins. Stalemate, threefold repetition and insufficient material are draws.
Difficulty: Easy looks one move ahead and plays loosely, Medium two, Hard three with capture quiescence.
Sound is off by default — tap 🔊 to enable. ⏸ pauses the AI clock.
Tap 💡 to toggle move hints — the engine suggests your best move.
About Chess
Our free online chess gives you a real opponent: an alpha-beta search engine that plays genuine chess — castling, en passant, promotion, checkmate, stalemate, and draw rules all implemented. You play White against three difficulty levels, from a loose one-move-ahead Easy to a calculating Hard with capture quiescence.
Whether you're learning the moves or sharpening tactics, playing a full game against a tireless engine is the fastest way to improve. Review your move list after each game, spot where your plan drifted, and run it back — the AI never gets tired, and neither does the lesson.
Quick tips
Control the center with pawns and develop knights before bishops.
Castle early — king safety beats a speculative attack in most games.
Against the Hard AI, avoid hanging pieces; it punishes every free capture.
Frequently asked questions
Is this chess game free?
Yes — full chess free in your browser, no download or signup.
Does it support castling and en passant?
Yes — full rules including castling, en passant, promotion, and all draw conditions.
How strong is the AI?
Easy looks one move ahead, Medium two, and Hard three with quiescence search — a real challenge for casual and club players.
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