Sudoku
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About Sudoku
About this game
A fresh, always-solvable grid every time you press New puzzle. Pencil-mark notes, error tracking and a best-time board across easy, medium and hard.
How to play
- Tap a cell, then tap a number — or type 1-9 on a keyboard
- Notes mode writes small pencil marks instead of a final answer
- Arrow keys move the selection, Backspace erases
Tips
- Scan for the digit that already appears most on the board — it boxes itself in fastest.
- Use notes on any cell with three or more candidates instead of guessing.
- A row, column or box with eight filled cells hands you the ninth for free.
Fits your rotation
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Why we list this
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