World's Hardest Sudoku Book: 200 of the World's Toughest Sudoku Puzzles

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A Paperback by Guy Rinzema

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View other formats and editions of World's Hardest Sudoku Book: 200 of the World's Toughest Sudoku Puzzles by Guy Rinzema

Publisher: Createspace Independent Publishing Platform
Publication Date: 02/05/2016
ISBN13: 9781533034182, 978-1533034182
ISBN10: 1533034184