Will Shortz Presents Mind-Melting Sudoku : 200 Cranium-Crushing Puzzles, Paperback by Shortz, Will (INT), ISBN 1250063442, ISBN-13 9781250063441, Brand New, Free shipping in the US Watch out! These puzzles are mind melting! But if you dare, grab a pen and take on these two hundred all-new extra challenging puzzles. Features: - 200 hard puzzles - Big grids for easy solving - Introduction by legendary puzzlemaster Will Shortz
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