Goal
Fill every row, column, and 3×3 box with the digits 1–9.
Logic game
Sudoku
9×9 grid · Medium
Play Sudoku on brainstretch.
- difficulty
- Easy – Expert
- one player
- Solo
- needed to play
- No account
- when you are stuck
- Hints
How to play Sudoku
Rules
Each digit appears exactly once in every row, every column, and every 3×3 box. The givens are fixed.
Controls
Select a cell, then enter a digit. Use notes to pencil in the candidates you are still weighing.
