More Puzzles

If you run out of puzzles you can import the following Sudoku collections:

Andoku Collection

 

As the legal owner of the original Andoku app, I can offer you hundreds of the original Andoku puzzles including squiggly/jigsaw puzzles here:

 

Beyond Nightmare

These are the toughest of the toughest puzzles from the Sudoku Player's Forum. They are all rated >=10.1 by Sudoku Explainer and beyond anything you'll find in a newspaper, a magazine or any Sudoku app. For the most addicted players only.