New York Post Toxic Su Doku

The Official Utterly Addictive Number-Placing PuzzleIf puzzles are your poison, drink in this collection of Easy- to Medium-level Su Dokus! 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!