Sudoku
Fill every row, column and 3x3 box with 1 through 9. Each puzzle is generated locally with one guaranteed solution.
Sudoku
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Filled 0/81Best --Time 0:00Conflicts 0
Easy: 38 starting numbers, one unique solution.
Tap a cell, then tap a number. Use Notes mode for candidates; arrow keys move, 1-9 enter, Backspace erases, U undoes, N toggles notes.
How to play
- Each row, column and 3x3 box must contain 1 through 9 exactly once.
- Starting numbers are fixed; every generated puzzle has one solution.
- Use Notes mode to store candidates before committing a number.
- Conflicts are highlighted so mistakes stay visible.
Controls and records
- Desktop: arrow keys move the selected cell, 1-9 enter values, Backspace erases.
- Mobile: tap a cell, then use the large number pad; Notes mode switches pad behavior.
- Best completion times are stored locally per difficulty.