by Harpercollins Publishers Ltd (Author)
150 all new DIFFICULT Su Doku challenges that will electrify puzzle-lovers!
Back Jacket
The official utterly addictive number-placing puzzle
Electrify your mind with these all new Difficult puzzles. These entertaining puzzles offer more than just hours of fun--Su Doku engages your brain, improves your concentration, and helps you stay mentally fit. With 150 brand-new puzzles to complete, you'll become a Su Doku master in no time!
Number of Pages: 240
Dimensions: 0.41 x 7.26 x 5.26 IN
Illustrated: Yes
Publication Date: April 13, 2010