Sudoku generator with solutions
Generate print-ready sudoku pages from easy to extreme, with a solution page for each one. A solver checks every puzzle so it has exactly one answer — free to use, with a commercial licence.
No card. Runs in your browser. Export a print-ready PDF with answer keys.
What does this sudoku generator make?
Complete sudoku pages and their solutions, laid out for a printed book. Difficulty follows the number of given cells and how much logic the solver needs, and books can ramp from easier to harder puzzles.
- Five difficulty levels: easy, medium, hard, expert and extreme
- Classic 9 × 9, plus 4 × 4 and 6 × 6 for children, 16 × 16, Sudoku X and Samurai
- Letters or symbols instead of digits
- Solutions at the back of the book or after each puzzle
How do you know each sudoku has only one solution?
After each cell is removed, a solver counts the solutions. If removing a cell would allow a second solution, the cell is put back. A sudoku with two answers is the most common complaint in puzzle book reviews, so it is checked every time.
How many sudoku puzzles go on a page?
One, two, four or six. One large puzzle per page suits large print books; four or six suit pocket-size books and experienced solvers who want more puzzles per book.
Can I sell sudoku books made with it?
Yes. Exports from the free tools carry a commercial licence for KDP, Etsy and your own shop. You may not resell or share the generator itself.
Frequently asked questions
Is the sudoku generator free?
Yes. Create a free account and export complete books with no watermark. No card is needed.
Can I make sudoku for kids?
Yes. Use the 4 × 4 or 6 × 6 sizes, or letters and symbols instead of digits.
Does it include solution pages?
Yes. Every puzzle gets a matching solution, placed at the back of the book or straight after the puzzle.
Does it use AI?
No. Puzzles are generated and checked by an algorithm in your browser.