Puzzle Proof

Hard Sudoku Puzzle Book For Adults Puzzle Proof

If you are looking for HARD, VERY HARD AND EXTREME SUDOKU PUZZLES, this book is PERFECT FOR YOU!
Puzzles inside are LARGE print for easier solving.


Inside you will find:

60 Hard Sudoku puzzles

60 Very Hard Sudoku puzzles


60 Extremely Hard Sudoku puzzles


Two sudoku puzzles on a page, Solutions to puzzles INCLUDED.


Perfect gift for anyone who loves challenge!


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