New York Post Shark Su Doku 150 Fiendish Puzzles

You’ll devour these tasty new Fiendish Su Dokus. Master them and you’ll rule the puzzle ocean! 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!