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Discover summer reading lists for all ages & interests!
Find Your Next Read

Inside you will find:
60 Hard Sudoku puzzles
60 Very Hard Sudoku puzzles
60 Extremely Hard Sudoku puzzles
Two puzzles on a page and solutions to puzzles are INCLUDED as well.
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.
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Take 20% off your first order
Enter the code below at checkout to get 20% off your first order