Sudoku
About Sudoku
Sudoku is a 9×9 logic puzzle where every row, column, and 3×3 box must contain the digits 1 through 9 exactly once. Solve solo or race a friend on separate copies of the same puzzle.
- Players
- 1–2
- Grid
- 9×9
- Type
- Logic puzzle
- Goal
- Complete the grid first
How to play
- 01 Choose an empty cell.
- 02 Enter a digit from 1 to 9.
- 03 Use row, column, and box clues to eliminate impossible numbers.
- 04 In a race, finish your own board before your opponent finishes theirs.
Controls
Click or tap a cell, then choose a number from the keypad. Each player edits only their own board.
Race mode
Both players receive the same puzzle and can see each other's completion progress, but not the other player's filled-in board. The first correct completion wins.
Explore the full guide
Find complete rules, examples, and practical strategy before your next game.