Cyberdoku — free online block puzzle

Cyberdoku is a free browser block-puzzle game. Drag pieces onto a 9×9 grid and clear rows, columns and 3×3 boxes to score points. Easy to learn, hard to put down — no download, no sign-up required to play.

Play three ways: Classic for an endless high-score chase, a Daily Challenge where everyone gets the same pieces with three attempts a day, and VS duels to race a friend on an identical board. Sign in to save your high score, climb the daily and all-time leaderboards, unlock themes, and challenge friends.

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