Will Shortz Presents Black Diamond Sudoku: 200 Extreme Puzzles by Shortz, Will

Watch out These puzzles are for the most extreme solvers But if you dare, grab a pen and take on these two hundred all-new extra challenging puzzles in Will Shortz Presents Black Diamond Sudoku.

Features:
- 200 hard puzzles
- Big grids for easy solving
- Introduction by legendary puzzlemaster Will Shortz

Author: Will Shortz
Publisher: St. Martin's Griffin
Published: 02/03/2015
Pages: 320
Binding Type: Paperback
Weight: 0.45lbs
Size: 7.10h x 5.00w x 0.90d
ISBN: 9781250063427

About the Author

Will Shortz has been crossword editor of The New York Times since 1993. He is also the puzzlemaster on NPR's Weekend Edition Sunday and the founder and director of the annual American Crossword Puzzle Tournament.