New York Post Naughty Su Doku: 150 Easy to Medium Puzzles
The official utterly addictive number-placing puzzle
Here comes trouble! These all new Easy to Medium puzzles will give you a run for your money. More than just hours of entertainment, 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 master in no time!