How to Play:
Fill the grid with the numbers 1 to 9, so that no row, column or 3 × 3 box has the same number twice.
| Keys |
|---|
↑ ← ↓ →
W A S D | Move around the grid |
| 1 … 9 | Fill in the number |
| Delete Backspace | Clear the cell |
| Enter | Check the solution (when no cell is selected) |
| Shift + Enter | Check the solution, any time |
| Shift + 1 … 5 | Difficulty: For a Bread to Expert |
| N | New game |
| I | Show or hide this info |
| Mouse and touch |
|---|
| Click or tap a cell | Select it, then pick a number on the pad (✕ clears it) |