| Author/Contributor(s): | Shortz, Will |
| Publisher: | St. Martin's Griffin |
| Date: | 02/03/2015 |
| Binding: | Paperback |
| Condition: | NEW |
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