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Play Mind Games in Your Browser
Every board on this page runs entirely in your browser: play chess, draughts or xiangqi against the computer, solve go problems, or test your bidding judgment at bridge.
BOARD 01
Memory Matrix
Memorize the flashing tiles and rebuild the pattern — how far can you climb?
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BOARD 02
Sudoku
Endless unique-solution sudoku in three difficulties, with pencil marks.
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BOARD 03
Bridge Bidding Trainer
45 bidding decisions judged against Standard American — with explanations.
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BOARD 04
Go Problems
Life-and-death training: 60 tsumego from beginner ladders to advanced shapes.
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BOARD 05
Xiangqi vs Computer
Chinese chess in the browser: cannons, palaces and the flying general rule.
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BOARD 06
Draughts vs Computer
English 8×8 or international 10×10 draughts against the computer, forced captures included.
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BOARD 07
Chess vs Computer
Full legal chess against a built-in engine — three strengths, opening to endgame.
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