Fill in the digits 1 to 9 so that no digit repeats in any row, any column, or any 3×3 box.
Tap a cell, then tap a symbol to fill it (or type). Clashing cells turn red.
How to play: Fill in the digits 1 to 9 so that no digit repeats in any row, any column, or any 3×3 box.
Tap a cell, then tap a symbol to fill it (or type). Clashing cells turn red.
Keep going — fill every cell with no clashes.