P Proof

Difficult Sudoku P Proof

If you are looking for HARD, VERY HARD AND EXTREMELY HARD SUDOKU PUZZLES, this book is PERFECT FOR YOU!

There Are Two Large Print Puzzles Per Page For Easier Solving.

Inside you will find:

100 Hard Sudoku puzzles

100 Very Hard Sudoku puzzles


100 Extremely Hard Sudoku puzzles

Solutions to puzzles Included at the back of the book.

Perfect gift for anyone who loves Hard Sudoku!

If you are looking for more Sudoku and other puzzles, see our PuzzleProof author page for more amazing Sudoku for all skill levels.