Will Shortz Presents Hard Sudoku Volume 4: 200 Challenging Puzzles

These 200 Challenging Sudoku Puzzles From Will Shortz Will Keep Your Mind Sharp Features: - 200 Hard Puzzles- Big Grids For Easy Solving- Introduction By Legendary Puzzlemaster Will Shortz. Author: Shortz, Will (Author).
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ISBN: 1250118913. Author: Shortz, Will. Orion Technology, LLC presents. Release Date: 2017-04-18. Qty Available: 1.
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