Banish boredom with su doku! Sharpen your pencils for pages of puzzles divided into easy, hard and even harder levels. Pocket-money perfect for rainy days, car journeys, or wherever you are! With over 150 puzzles for age 7 and up, this handily sized book will keep kids entertained, having fun and exercising logic skills as they pore over increasingly tricky su doku. Once you've completed them all, check out the rest of the Brain Buster range with Wordsearches and Crosswords books available now!