The official utterly addictive number-placing puzzle
Warning: without proper precautions, these all new Fiendish puzzles may just blow your mind. 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!
|Harper (Apr. 13th, 2010)||Unknown|
|9780062007513||5.20 x 7.28 x 0.45 inches|