Batch Generate
Create 1-100 unique sudoku puzzles at once. Save time with bulk generation!
Free Printable Sudoku Puzzle Maker
Create custom sudoku puzzles online with our free sudoku generator. Batch generate multiple puzzles, choose difficulty levels, and download printable PDFs with answer keys. Perfect for teachers, educators, and puzzle enthusiasts!
Create Your Sudoku Puzzles
Select difficulty, set print options, and download PDF with answer keys
Why Use Our Free Sudoku Puzzle Maker?
Printable PDFs
Download printable sudoku puzzles and answer keys. Multiple layout options available.
4 Difficulty Levels
Easy to Expert difficulty. All puzzles guaranteed solvable with unique solutions.
Choose Your Difficulty Level
Easy Sudoku
Perfect for beginners and kids (ages 8+). 36-46 clues for simple logic solving.
⏱️ Solving time: 10-15 minutes
Medium Sudoku
Great for casual players. 32-35 clues requiring strategic thinking.
⏱️ Solving time: 15-25 minutes
Hard Sudoku
For experienced players. 28-31 clues needing advanced techniques.
⏱️ Solving time: 30-45 minutes
Expert Sudoku
Only for sudoku masters. 25-27 clues with extreme challenge.
⏱️ Solving time: 45+ minutes
Perfect For Everyone
🎓 Education
Create printable sudoku worksheets for classroom use. Perfect for logic training and cognitive development.
🎉 Events
Generate puzzles for parties, competitions, or team-building activities with multiple difficulty levels.
🧩 Personal Use
Create unlimited puzzles for personal enjoyment, brain training, and daily mental exercise.
A Brief History of Sudoku
While often associated with Japan, Sudoku actually has its roots in 18th-century Switzerland. The mathematician Leonhard Euler created 'Latin Squares,' which functioned similarly. The modern version was designed by Howard Garns in the US in 1979 under the name 'Number Place.' It wasn't until 1984 that Nikoli introduced it to Japan as 'Sudoku' (meaning 'single number'), where it gained massive popularity before conquering the world.
Sudoku Strategy Tips
Look for Single Candidates
Scan rows, columns, and 3x3 grids to find cells where only one number can fit. This is the easiest way to start.
Scanning Techniques
Pick a number (like 1) and scan the grid to see where it's missing. Use 'cross-hatching' to eliminate rows and columns where the number already exists.
Pencil Marks
When you're stuck, write down small candidate numbers in empty cells. This helps you visualize possibilities and spot advanced patterns like 'naked pairs'.
Explore More Puzzle Tools
Try our other free puzzle generators
Frequently Asked Questions
Common questions about our sudoku puzzle maker
Making a sudoku puzzle is easy! Select your difficulty level (Easy, Medium, Hard, or Expert), set how many puzzles you want to generate, choose your page layout, and click 'Generate New Puzzles'. Our free sudoku generator will create unique puzzles with guaranteed solutions.
Yes! Our sudoku generator is 100% free. Create unlimited sudoku puzzles, download PDFs with answer keys, and there's no registration required. Completely free forever.
Absolutely! You can batch generate 1-100 sudoku puzzles in one go. Perfect for teachers who need to create different puzzles for each student in a classroom.
We offer 4 difficulty levels: Easy (perfect for beginners and kids), Medium (good for casual players), Hard (challenging for experienced players), and Expert (only for sudoku masters).
Yes! You can download two separate printable PDFs: one with the puzzles (blank) for solving, and one with the answer keys (filled) for verification. Perfect for teachers who need to check student work.
You can choose from 1, 2, 4, 6, or 9 printable puzzles per page. Four puzzles per page (2×2 grid) is the most popular layout for classroom use as it saves paper while keeping puzzles readable.
We support A4 (210×297mm), A3 (297×420mm), and Letter (8.5×11 inches) paper sizes. Choose the size that matches your printer and region.
Yes! All puzzles generated by our sudoku maker are guaranteed to have exactly one unique solution. We use a proven algorithm to ensure puzzle quality and solvability.