Will Shortz Presents Ferocious Sudoku: 200 Hard Puzzles

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Are you tough enough? Take on this collection of 200 devilishly difficult sudoku puzzles! Includes: -200 hard puzzles -Perfect portable size -Big grids for easy solving

Will Shortz Presents Ferocious Sudoku: 200 Hard Puzzles 2008, Griffin, New York

ISBN-13: 9780312382766

Trade paperback

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