They just don't get any harder than this!
These are the roughest, toughest, NASTIEST Sudoku's I ever concocted.
These 200 These extreme Sudoku puzzles are made to challenge even the most expert solver.
Your extreme mental workout begins now!
Buy several copies and challenge your friends.
All puzzles have been checked to ensure there is only one valid answer.
Find more puzzle books on my author page and my website!
patjohn.me
Sudoku Challenges: 200 Extreme Puzzles by Pat John ebook pdf epub mobi
Sudoku Challenges: 200 Extreme Puzzles download
Pat John Sudoku Challenges: 200 Extreme Puzzles free
Sudoku Challenges: 200 Extreme Puzzles books pdf online
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