Free 9×9 Sudoku
Standard nine-by-nine Sudoku with classic block borders.
About this Sudoku page
The classic format players expect from newspapers and puzzle books — free in the browser.
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.