I Su Doku - heart Author:Rafael Sirkis, Daria Ackerman, Joshua Glazer Puzzle-lovers across the nation have fallen for the hot new craze su doku! One look at a 9 x 9 logic puzzle reveals the secret of its appeal: Without your attention it will remain forever incomplete. Whether you're a numerical novice or a long-time crush, picking up this book is an important first step in making sense of this most logical of ob... more »sessions. Inside you'll find 120 fun puzzles as well as the secret history of su doku and other facts. Plus su doku love poems!« less