Nightroll

Free Sudoku Generator

Choose a difficulty and how many puzzles, then print or play on screen.

You can also type into the grids on screen.

How to make sudoku puzzles

  1. Choose easy, medium or hard and how many puzzles.
  2. Pick how many go on a page.
  3. Print them with the answers, or type into the grid and press Check.

Frequently asked questions

Does every puzzle have one solution?
Yes. Numbers are removed only while the puzzle still has exactly one solution.
Is my data stored?
No. Everything happens in your browser and your inputs are saved only on this device.