Sudoku on mobile
Responsive grid that fits portrait and landscape phones.
About this Sudoku page
The board scales within the viewport without horizontal scroll on most devices.
FAQ
Everything you need to enjoy Sudoku with calm, focused play.
How do I play Sudoku online?+
Fill each row, column, and 3×3 box with digits 1 to 9 exactly once. Tap or click a cell, then choose a number from the keypad.
Is an account required to play Sudoku?+
No. You can start immediately in your browser without creating an account.