← Volta Arcade
Sudoku carved into stone. A new puzzle every game: chisel in every number, finish rows and boxes to light up the slab, and solve it before you make three mistakes.
Scoring
- 50
- Easy
- 150
- Medium
- 210
- Hard
- 230
- Expert
Points per correct number drop every 5 seconds you take, down to a tenth. Finishing a row, column or box multiplies them by 5 each. Three mistakes ends the game.
Your bests
| Level | Score | Fastest |
|---|
Kept on this device.
Click or tap a square, then a number. Keyboard: arrow keys move, 1 to 9 carve a number, N toggles notes, Backspace erases, H gives a hint, Ctrl Z undoes, P pauses.