Puzzle Proof

Hard Sudoku Puzzles For Adults - Hard, Very Hard And Extreme Puzzle Proof

HARD, VERY HARD AND EXTREME SUDOKU PUZZLES INSIDE! If love challenge, this book is FOR YOU!
Puzzles are LARGE print for easier solving. Large print doesn't mean it's easy, these puzzles will keep you solving for hours!


Inside you will find:

60 Hard Sudoku puzzles

60 Very Hard Sudoku puzzles


60 Extremely Hard Sudoku puzzles


There are two sudoku puzzles on each page, Solutions to puzzles are INCLUDED.


Perfect gift for anyone who loves challenging Sudoku!


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