Sudoku keep your brain logical thinking, even at a young age. Sudoku improves critical thinking and making quick decisions based upon available evidence.Sudoku is not only fun and interesting. It is a brain game that helps to train the brain of you and your child. Sudoku also demands attention to detail - noticing patterns, and finding the right moment to make a move.This series have four different levels: easy, normal, hard, and expert. This book is easy level. if you need other level, please check "Mike Murphy Sudoku". Sudoku easy level vol.1 Details- Small Print (5x8) to easy take with- 30 Easy Level Sudoku Puzzles Collection- plus 2 Medium Level Puzzles for challenge How to play?The goal of Sudoku is to fill in the empty cells, one number in each, so that each column, row, and region contains the numbers 1 to 9 exactly once.Buy a copy today!Sudoku FamilyPocket Sudoku: Level Easy ASIN: 1984096001Pocket Sudoku: Level normal ASIN: 1984137085Pocket Sudoku: Level Hard ASIN: 1983404314Pocket Sudoku: Level Expert ASIN: 1984146394Pocket X-Sudoku: Level Easy ASIN: 1985412640Pocket X-Sudoku: Level Expert ASIN: 1985317117Pocket Blank Sudoku Worksheet Book 8*10 ASIN: 1985863634Pocket Blank Sudoku Worksheet Book 6*9 ASIN: 198586309XPocket Sudoku Level Expert 30 mini 4*6 ASIN: 1986303470