Digital break · online game
Sudoku
A calm break to train focus and logic, with games generated directly in your browser.
Interactive tool
Complete the grid, one number at a time.
Enter numbers from 1 to 9 without repeating them in rows, columns or boxes. You can also use notes to record possibilities.
Choose a difficulty and enter the first number to start.
How to play?
- Each row, column and 3×3 box must contain the numbers 1 to 9 exactly once.
- The numbers already present are clues and cannot be changed.
- Turn on “Notes mode” to write several possibilities in the selected cell.
- The “Check grid” button highlights incorrect entries.
- The game and records run locally, without an account or server.