mental_floss Sudoku - Frank Longo

Enjoy fantastic sudoku puzzles from a renowned expert with this book that every sudoku lover will flip over. 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 top-notch, and because these increase in difficulty as the book goes along, they're perfect for helping solvers build their skills.
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