The logic desk
Daily logic puzzles
Grid puzzles, number puzzles, and deduction games — free in your browser, no download. A fresh online puzzle every day for people who think in rules.
Shrooms
Forage two edible mushrooms in every row, column, and dirt patch — none of them touching, not even diagonally. Mark safe squares with grass, and avoid poisonous mushrooms!
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Sudoku
The classic numbers game. Fill every row, column, and box with digits one through nine, no repeats. Choose your difficulty.
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Rotato
Order the scrambled number grid. Tap the center of any 2×2 grid to rotate it until the entire grid is ordered correctly. Tap once for clockwise ↻, twice for counterclockwise ↺
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