Sudoku
Empty
0
Best
0
Time
0
Pick a cell, then a number
What is Sudoku?
Sudoku is a logic puzzle on a 9×9 grid divided into nine 3×3 boxes. The solver fills empty cells with digits 1–9 so that each row, column, and box contains every digit exactly once.
How to play
- Tap an empty cell, then tap a number (or press 1–9) to fill it. Press 0/Delete to clear.
- Each row, column, and 3×3 box must contain 1–9 with no repeats — conflicts are highlighted in red.
- Turn on Pencil to jot candidate notes. Every puzzle has exactly one solution. Best time per difficulty is saved.