Sudoku Generator
Your puzzles, your paper, your layout. Free PDF downloads with optional answers.
Build your puzzle pack
Start small. Learn one step at a time.
Use 1 and 2 once in each row and column. These first number puzzles have no box rule.
8 puzzles · 4 puzzle pages + 4 answer pages
Print preview
Black-and-white output · Select 100% scale and turn off browser headers and footers when printing.
How to make a printable Sudoku pack
- 01
Choose your puzzles
Begin with 2×2 number puzzles using 1 and 2. Move on to 4×4 Sudoku and then easy 9×9 when ready. Blank grids are available for copying a puzzle by hand.
- 02
Check the preview
Choose A4 or Letter and one, two, or four puzzles per page. Changing the layout keeps the same puzzle set. Use the arrows to check every page.
- 03
Download or print
Include the answer key on separate pages, download the PDF, or print directly. Use 100% scale and disable browser headers and footers.
How are the difficulties checked?
The 2×2 starter activities teach row and column rules without boxes. Standard Sudoku begins at 4×4. Easy Sudoku puzzles are solvable with naked singles. Medium puzzles also require hidden singles. Hard puzzles require more than these two techniques. Each starting puzzle has exactly one solution; the generator creates variations using transformations that preserve the Sudoku rules and difficulty tier.
Can I reprint the same puzzles?
Yes. Save your PDF or use “Copy link to this set.” Paper size, layout, and answer settings do not change the questions. “New puzzles” creates a different set. Template links open the exact questions from the ready-made download.