Free Sudoku Maker
Free Sudoku Generator
Generate unlimited sudoku puzzles — easy, medium, or hard
Create unique sudoku puzzles instantly with our free generator. Choose from three difficulty levels — easy, medium, or hard — and get a fresh puzzle every time you click Generate. Each puzzle has exactly one solution, guaranteed. Download printable PDFs with the puzzle on one page and the solution on the next. Great for daily brain training, classroom math activities, or building sudoku puzzle books.
Why use Puzzone
Three Difficulty Levels
Easy puzzles for beginners, medium for casual solvers, and hard for expert players. Each level carefully calibrated.
Guaranteed Unique Solutions
Every puzzle has exactly one valid solution. No ambiguous puzzles — just clean, satisfying logic.
Unlimited Puzzles
Generate as many puzzles as you want. Every click creates a brand new, unique sudoku puzzle.
Printable with Solutions
Download PDFs with the puzzle and its solution. Perfect for puzzle books, daily challenges, or classroom handouts.
How it works
Choose Difficulty
Select easy, medium, or hard based on your skill level or audience.
Generate Puzzle
Click Generate to create a unique sudoku puzzle with a guaranteed single solution.
Print or Save
Download a PDF with the puzzle and answer key, or preview it right in your browser.
Frequently asked questions
Yes. Every puzzle is randomly generated and has exactly one valid solution. You will get a different puzzle each time.