New York Post Electrifying Su Doku: 150 Difficult Puzzles - Paperback

by Harpercollins Publishers Ltd (Author)

150 all new DIFFICULT Su Doku challenges that will electrify puzzle-lovers!

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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!