Tap any blank square on the 9×9 board. The row, column, and 3×3 block are highlighted.

Tap 1–9 below the board. A correct digit fills the cell and earns points.

Each digit is worth its face value. Smart Sudoku moves can earn skill bonuses, and completing a row, column, or block gives an extra bonus. Correct moves in a row build a combo (up to +3 per move); a wrong guess resets it.

After your move, the other player gets a turn. Bots play automatically when selected.

If a timer is enabled and you run out of time, you lose 3 points and your turn passes.

When every cell is filled, the player with the higher score wins. Campaign levels also award up to 3 stars.