The classic number placement puzzle game
Sudoku is the world's most popular logic puzzle. Fill a 9×9 grid so every row, column and 3×3 box contains the digits 1–9 exactly once. Choose from Easy, Medium, Hard, and Expert difficulty levels. Free online, no download needed.
Sudoku is a logic-based number placement puzzle. The goal is to fill a 9×9 grid with digits so each column, row and 3×3 section contain all digits 1–9.