Free Jigsaw Sudoku Maker
Free Jigsaw Sudoku Generator
Nine irregular regions in place of the 3×3 boxes
Updated Sep 17, 2026
Jigsaw sudoku, also called squiggly or nonomino sudoku, keeps every rule of ordinary sudoku and replaces the nine 3×3 boxes with nine irregular shapes. Rows and columns still need 1 to 9 once each, and so does every jigsaw region. The irregular shapes change how the logic flows: regions stretch across three or four rows, so the scanning patterns you learned on a normal grid stop working and new ones take over. Choose a difficulty, generate, and print a PDF with the answer key.
Why use Puzzone
Irregular Regions Every Time
A new region layout is generated with each puzzle, so no two look alike and the solving path is always different.
Same Rules, New Logic
If you can solve sudoku you can solve this. The scanning changes, the rules do not — it is the cheapest way to make sudoku feel new.
Verified Single Solution
Region shapes and given digits are checked together so each puzzle resolves by logic to exactly one grid.
Print-Ready PDF
Clean black-and-white region borders that stay legible on a home printer, with the solution on its own page.
How it works
Choose Difficulty
Easy, medium or hard — this sets how many digits are given to start.
Generate
Click Generate for a new region layout and a new puzzle with one solution.
Print or Export
Download the PDF with the puzzle and answer key, ready for a class set or a puzzle book.
Frequently asked questions
A sudoku variant where the nine 3×3 boxes are replaced by nine irregular nine-cell regions. Each row, column and region must still contain the digits 1 to 9 exactly once.