Will Shortz Presents Black Diamond Sudoku: 200 Extreme Puzzles

Book Overview

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

• Format: Paperback
• Language: English
• ISBN: 1250063426
• ISBN13: 9781250063427
• Release Date: February 2015
• Publisher: St. Martin's Griffin
• Length: 320 Pages
• Weight: 0.51 lbs.
• Dimensions: 0.9" x 5.0" x 7.1"