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Will Shortz Presents Simply Sinister Sudoku: 200 Hard Puzzles (Will Shortz Presents...)
Will Shortz Presents Simply Sinister Sudoku 200 Hard Puzzles - Will Shortz Presents... Author:Will Shortz Are you tough enough? Take on this collection of 200 devilishly difficult sudoku puzzles and find out! Includes: -200 hard puzzles-Perfect portable size-Edited by Will Shortz