Sudoku
Play free Sudoku online with four levels from Easy to Expert. Fill the 9×9 grid so every row, column and box has the numbers 1 to 9, with notes, hints, undo and a timer. Your game is saved so you can come back to it.
How to play Sudoku
Pick a square and enter a number. Each row, column and 3×3 box must contain 1 to 9 exactly once.
Wrong numbers turn red. Use Notes to pencil in possibilities, or Hint to fill in one square.
Sudoku game modes
- Easy. More numbers given to start.
- Medium. A moderate challenge.
- Hard. Fewer starting numbers.
- Expert. The fewest starting numbers.
Tips and tricks
- Start with the numbers that already appear most often on the grid.
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Explore more puzzle games, or choose another game from Play next.
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Controls
PC controls
- Mouse or touch: pick a square, then a number.
- Number keys: enter a number.
- Arrow keys: move around the grid.
- N: turn notes on or off.
- Backspace: erase.
Touch controls
- Mouse or touch: pick a square, then a number.
FAQ
Is my game saved?
Yes. Your puzzle is saved as you play, and signing in keeps it on your account.
Does every puzzle have one solution?
Yes. Each puzzle is checked so it has exactly one solution.