Sudoku books
Free sudoku books created with Kaidoku.
- Level 1: trivial has 100 problems (6.2MB). Recommended for kids.
- Level 2: very easy has 300 problems (16MB). Recommended for beginners.
- Level 3: easy has 500 problems (23MB). Recommended for casual players.
- Level 4: normal has 500 problems (23MB). Recommended for experienced players.
- Level 5: hard has 500 problems (23MB). Recommended for advanced players.
- Level 6: very hard has 500 problems (23MB). Recommended for serious players.
- Level 7: evil has 500 problems (23MB)
- Level 8: extreme has 500 problems (23MB)
- Level 9: ultimate has 500 problems (23MB)
- Zip archive of all the books (143MB)
How to play
- Download PDF file and play it with PDF editor which allows handwriting. For example, Notability, GoodNotes, GoodReader or OneNote for iPad.
- You can also print the PDF file and solve it with your pencil.
- Mobile and web version is available.