Sudoku

Play free Sudoku online. Easy to hard difficulty levels, notes mode, and a clean interface.
Game
Time0:00
Mistakes0/3
Tool Introduction

Sudoku is a classic number-placement puzzle. Fill the 9×9 grid so each row, column, and 3×3 box contains all digits from 1 to 9. Pick a difficulty, use notes to pencil in candidates, and beat the clock.