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Beyond Black Belt Sudoku
Are you a sudoku warrior? Now you have an incredible opportunity to reach elite status and bask in the glory of completing some of the hardest sudoku ever constructed. For …
Sudoku U: Senior Year
We'll school you in sudoku Find your grade, improve your play--and graduate to the next level. Sudoku professor Frank Longo has crafted five books with 300 sudoku each, which …
The Nastiest Sudoku Book Ever
Only diehards need apply These incredibly difficult sudoku are made to challenge even the most expert solver...and strain their brains to bursting. Each puzzle requires …
Poolside Sudoku
Lounging by the pool is a great way to spend some leisure time, and great sudoku puzzles make it even better. Whether theyre on a beach towel or lounge chair, solvers will delight …
Sudoku U: Freshman Year
We'll school you in sudoku Find your grade, improve your play--and graduate to the next level. Sudoku professor Frank Longo has crafted five books with 300 sudoku each, which …
Mental_floss Sudoku: It's the Brain Candy You've Been Craving!
Sudoku super-master Frank Longo and mental_floss, the magazine for trivia lovers, bring fans a collection of superb puzzles sure to stimulate the brain. Longos puzzles are always …