Printable Sudoku: Puzzles With Answers
These printable sudoku puzzles are generated fresh in your browser, and every one has exactly one solution. Pick a difficulty from easy to expert, choose how many puzzles you want and whether to print one, two or four per page, then download a PDF or PNG or print. An answer key page is added at the end. The generator builds a complete valid grid with secure random numbers and then removes clues one at a time, checking with a solver that the puzzle still has a single answer. Use it for classrooms, puzzle books, newsletters, waiting rooms or a quiet evening with pen and paper.
Printable Sudoku Puzzle Generator
Make printable sudoku puzzles from easy to expert, each with one unique solution. Download a PDF with answers.
How to use the Printable Sudoku Puzzle Generator
- Choose the difficulty and how many puzzles you need.
- Choose one, two or four puzzles per page.
- Press New puzzles for a fresh set, and check the preview.
- Download the PDF or PNG, or press Print. The answer key is on the last page.
Features
- Easy, medium, hard and expert levels
- Every puzzle has exactly one solution, checked by a solver
- 1, 2 or 4 puzzles per page
- Answer key pages included
- US Letter or A4, portrait or landscape
- Unlimited new puzzles, nothing uploaded
Frequently asked questions
How do I know each puzzle has only one solution?
After each clue is removed, a solver counts the solutions. If the puzzle would have more than one, the clue is put back, so the finished puzzle always has exactly one answer.
How are the difficulty levels set?
Levels use the number of given digits: about 40 for easy, 34 for medium, 30 for hard and 26 or fewer for expert. Fewer clues usually need more advanced logic.
Are the puzzles different each time?
Yes. Each grid is built from your browser's secure random generator, so each press makes a new set.
Can I print several puzzles on one page?
Yes. Choose 2 or 4 per page to save paper. With 1 per page the grid is large and easy to read.
Where are the answers?
The answer pages follow the puzzles in the PDF, using the same layout. Untick the answer key option if you do not want them.