★ Fun Sudoku puzzle book for kids from 6-8 years 200 Sudokus (4 puzzles on each page) 1 levels of difficulty (easy) Inlcuding instrauctions and solutions at the back of the book For Kids ages 6-8 years Large format: The print size is 8,5 x 11 (ca. A4) Children who solve Sudokus can better focus and have a higher problem-solving ability. The Sudoku puzzle book is the perfect gift for kid who loves brain jogging and mental excercises.