Générateur de sudoku

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.