New York Post Master Su Doku (Paperback)
William Morrow Paperbacks, 9780061935817, 240pp.
Publication Date: July 28, 2009
The official utterly addictive number-placing puzzle
Give your brain a workout with these all new Difficult-level puzzles. These entertaining puzzles offer more than just hours of fun—Su Doku engages your mind, improves your concentration, and helps you stay mentally fit. With 150 brand-new puzzles to complete, you'll become a Su Doku guru in no time!