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Even more fiendish, even more fun, X-treme Sudoku proudly presents 320 puzzles rated "Difficult" to "Very Difficult." These are the toughest, knottiest, most demanding Sudoku out there. Prepare to have your brain cells crackle, your pencils melt, and your mind obsessed with numbers and squares.
Number of Pages: 405
Vendor: Workman Publishing
Publication Date: 2006
|Dimensions: 6 X 4 X 1 (inches)|