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Printable Sudoku
Make your own printable Sudoku PDF, anything from a single worksheet to a whole book. Pick who it's for, choose grid size, difficulty and puzzles per page, add an answer key and a cover, then download. Everything is generated in your browser, free of charge.
A Sudoku PDF made exactly the way you want
Choose 4×4, 6×6 or 9×9 grids and Easy to Expert difficulty, or a mixed set that gets harder as you go. Fit one, two, four or six puzzles to a page, print on A4 or US Letter, and add a title cover, a contents page and a full answer key. Every puzzle has exactly one solution that logic alone will reach.
Print for a class, a gift or a whole book
Start from a purpose (Kids, Seniors, Classroom, Practice or Gift) and the settings tune themselves: larger cells for kids, big bold numbers for large print, name and date lines for worksheets. Teachers can generate a batch of unique books, each with different puzzles at the same difficulty, so no two students share the same answers.
Bridge paper and screen
Each printed puzzle carries a QR code that reopens that exact board on Playoku, where you can play it, get a hint, or check your answer after solving on paper. Every book also comes from a shareable link, so you can send the same set to someone else or regenerate it later.
Frequently asked questions
Is the printable Sudoku PDF free?
Yes — completely free with no sign-up. The PDF is generated in your browser and downloads straight to your device.
Can I choose the difficulty and grid size?
Yes. Pick 4×4, 6×6 or 9×9 grids and Easy, Medium, Hard or Expert — or a mixed book that ramps up in difficulty. Every puzzle has a single, logical solution.
Does it include an answer key?
Yes. You can add an answer key at the back — compact grids many-to-a-page, or larger one-per-cell — and a contents page that summarises the book.
How many puzzles can I print at once?
From a single worksheet to a full book of dozens of puzzles, one/two/four or six to a page. You can also generate a batch of unique copies for a whole classroom.
Prefer to play on screen?
Play free Sudoku online — fresh puzzles, hints and every grid size.
Play Sudoku →