Are these sudoku puzzles really free?

Yes. Generate and download as many printable sudoku PDFs as you like, with no account and no watermarks on the puzzles.

Does every puzzle have a unique solution?

Every puzzle is validated to have exactly one solution, so there is never any guessing required and the included answer key always matches.

What is the difference between the difficulty levels?

Easier levels start with more given numbers, while Hard and Expert remove more clues and require more advanced solving techniques.

Can I print multiple puzzles at once?

Yes. Choose 1, 4, 6, or 9 pages and fit 1 or 2 puzzles on each page, then download them all in a single print-ready PDF.

Which paper size should I choose?

Pick Letter (8.5 × 11 in) for US printers or A4 for most of the rest of the world. Margins are tuned so nothing gets cut off.

Sudoku Printable

Free sudoku printable PDFs — generate unlimited unique boards and download instantly. Prefer easy sudoku printable or sudoku for kids? Open those pages for tailored puzzles.

Unlimited puzzlesGenerate as many unique boards as you need.
Print-readyClean margins for Letter and A4 paper.
Instant PDFDownload high-quality PDFs in one click.

Your printable preview will show up here automatically.

Kids Sudoku Easy Sudoku Medium Sudoku Hard Sudoku Expert Sudoku

How to make printable sudoku

1Pick a difficulty level, from Kids through Expert.
2Choose how many pages and puzzles per page you want.
3Toggle the answer key on or off and select your paper size.
4Preview updates automatically, then download your print-ready PDF.

Frequently asked questions

Are these sudoku puzzles really free?: Yes. Generate and download as many printable sudoku PDFs as you like, with no account and no watermarks on the puzzles.
Does every puzzle have a unique solution?: Every puzzle is validated to have exactly one solution, so there is never any guessing required and the included answer key always matches.
What is the difference between the difficulty levels?: Easier levels start with more given numbers, while Hard and Expert remove more clues and require more advanced solving techniques.
Can I print multiple puzzles at once?: Yes. Choose 1, 4, 6, or 9 pages and fit 1 or 2 puzzles on each page, then download them all in a single print-ready PDF.
Which paper size should I choose?: Pick Letter (8.5 × 11 in) for US printers or A4 for most of the rest of the world. Margins are tuned so nothing gets cut off.

Sudoku facts

What is a printable sudoku PDF?

A printable sudoku PDF is a downloadable puzzle sheet you can print on Letter or A4 paper. Print This PDF generates unique 9×9 boards in the browser and exports a clean, print-ready PDF with no account required.

Difficulty and unique solutions

Difficulty is controlled mainly by how many starting clues remain: Kids keep about 50 clues, Easy about 42, Medium 34, Hard 28, and Expert 24. Every board is checked so it has exactly one solution—no guessing required.

Answer keys and layout

You can include a separate Answer Key page after the puzzles. Choose 1–9 pages and 1 or 2 puzzles per page, then download instantly. Print at 100% scale (no fit-to-page) for correct margins.

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