Sudoku-Generator
Erzeuge, spiele und drucke eindeutige Sudoku-Rätsel, auch als 4er-Arbeitsblatt.
About this tool
Generate, solve and play 9×9 Sudoku puzzles. Difficulty controls how many cells start blank; the generator only removes a cell if the puzzle still has a unique solution.
Buttons
- New puzzle: regenerate.
- Hint: fill one random unknown cell with the correct digit.
- Check: report wrong / blank cells (wrong values are also coloured red as you type).
- Reveal solution: fill the entire grid.