How to make a hard sudoku printable
- Choose 4x4, 6x6 or 9x9 and a difficulty.
- Pick how many puzzles you want.
- Press Draw it up. Answer key on the last page.
Frequently asked questions
Is the hard sudoku printable free?
Yes, with no signup. Free prints carry a small Printoodle footer.
Does every puzzle have exactly one solution?
Yes. Each puzzle is checked by a solver so it has one valid answer and needs no guessing.
Are there easy sudoku for kids?
Yes. Choose 4x4 or 6x6 for beginners and children.
How many puzzles can I print?
Up to six per PDF, and you can make as many PDFs as you like.