Sudoku game card for improving memory and mental agility. We recommend this book for children between the ages of 8 and 12 to help them in their mental development and to support them in operating with abstract ideas.
This book contains 52 sudoku puzzles and their solutions at the end of the book.
Inside you can use pens, pencils, crayons and any similar objects, but we recommend using the pencil with an eraser.
This book can become the perfect gift in any situation!