Sudoku for Kids Ages 8-12 | Childrens Activity Book With Over 340 Sudoku Puzz...
Sudoku for Kids Ages 8-12 | Childrens Activity Book With Over 340 Sudoku Puzzles | Grids Include 4x4, 6x6, and 9x9 | Easy, Medium, and Hard Skill Leve, ISBN 173943773X, ISBN-13 9781739437732, Like New Used, Free shipping in the US