Chess

Play the bot or a friend · take-backs

PRESS START

SCORE 0 BEST 0

How to Play

Pick a mode: 🤖 vs Computer (3 levels) or 👥 two-player
Click a piece to see its legal moves, then click a square to move
You play White (bottom); full rules: castling, en passant, promotion
Promote a pawn — pick queen, rook, bishop or knight
Press ↩ 悔棋 (or Z) to take back — undoes 2 plies vs the computer
Checkmate, stalemate and check are all detected automatically

Chess brings the timeless board game to your browser, free and instant. Take on the computer at one of three strengths — Easy for newcomers, Normal for a fair fight, or Hard for a real challenge backed by alpha-beta search and positional evaluation — or pass-and-play with a friend in local two-player. Every rule is here: legal move highlighting, castling, en passant, pawn promotion with a piece picker, plus check, checkmate and stalemate detection. Made a slip? Take your move back — undo steps you out of trouble (and rewinds the computer's reply too). Click a piece to see exactly where it can go, then click to move. No account, no download, no install — just open the board and play.

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