Play Sudoku online
The classic number puzzle
Fill the grid so every row, column and 3×3 box holds the numbers 1 to 9 exactly once. Every puzzle has one solution — use notes and hints when you need them.
How to play
- Tap a square, then tap a number.
- Each row, column and box needs 1 to 9 once.
- Use ✏️ notes for possibilities, 💡 for a helping hand.