Young puzzlers can put their number and logic skills to the test with this ultimate book of over 180 sudoku puzzles. Inside you'll find puzzles for everyone, from sudoku beginners to number ninjas. They're graded by skill level so that you can start wherever you feel comfortable-then level up when you're ready for a challenge. With epic cartoon illustrations, this collection offers hours of fun and satisfaction while improving memory and critical thinking too! Fantastic fun for puzzlers aged 7+. ABOUT THE SERIES: Bamboozle, befuddle and blow the minds of young readers with the Absolutely Epic Activity Books . This fab and funny series of puzzles, experiments and activities feature wacky cartoon illustrations and are perfect for kids aged 7+.