Looking for a way to boost your child's brain power? If so, then this book is for you! Solving Sudoku puzzles improve memory & focus, boost confidence and useful in learning math and science in children between the ages of 7 to 11, according to the University of Cambridge researchers. If your child has never played sudoku before, then this book will help them get started. Why you'll love this book: It offers step-by-step & easy-to-follow instructions with pictures at each level. It gives you the time to process the information given in each step and to logically apply the lessons to how you approach a puzzle rather than forcing you to just make decisions and fill in the blank spaces. It gradually builds your skill from the ground up starting with: 10 (4X4 puzzles) 30 (6X6 puzzles) 150 EASY (9X9 puzzles) 126 MEDIUM (9X9 puzzles) 50 HARD (9X9 puzzles) 369 puzzles total (including 3 demo puzzles). All new - absolutely NO DUPLICATES! It offers one puzzle to try a day (for an entire year - if you're wanting to take it slow) Large font - 2 puzzles per page Solutions are included with large fonts and are easy to read. It offers the BEST VALUE for your money! It's full of new puzzles to try (from 4X4 to 9X9 and easy to hard) plus 3 dedicated demo puzzles with explanations on how to solve them. Playing sudoku is a fantastic activity that'll keep the mind sharp all year round - for kids and adults. So, grab a copy or two for some friendly family competitions!