Print as a worksheet
Print the blank sudoku for the class and the solved one for yourself. A picture sudoku prints with its pictures in the cells.
Sudoku maker
Pick a size and a difficulty and a sudoku with one solution is generated for you. Play it online, share it or print it.
How this generator works
Make your first sudoku
Choose a size
- Boards run from 4 × 4 to 16 × 16, with the classic 9 × 9 in the middle.
- Smaller boards suit younger players.
Choose the difficulty
- It sets how many numbers are given and how hard the logic gets: Easy, Normal or Hard.
Inspect or regenerate
- A board with exactly one solution is ready the moment you arrive.
- Regenerate puzzle deals another until you like the look of it.
Play, then share
- Play shows what players see.
- Share has the link, the QR code and the print options.
Share it online
One link or QR code opens the sudoku in any browser, with no player accounts. Embedding needs a paid plan.
Save your activity first
Free to build, free to play. No account needed to try it. A free account saves your sudoku and covers 60 player sessions a month. One session is one player opening one activity.
What this maker can do
More possibilities
Ways to use it
All ideas →A custom sudoku in your own size, with numbers or with your own pictures, for a lesson, a party or a newsletter: start from an example below and make it your own.
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