Sudoku puzzles are also very popular with children today. This book is a very nice and easy introduction to the world of brain teaser and number games for kids aged 6-8 years. The Beginning Make 4x4 sudokus on the simplest level with the number range 1-4. 6x6 Sudokus with the number range of 1-6 are following, also on a very easy level. And if you already know the number range 1-9, you can try the 9x9 Sudokus, which are also suitable for beginners. All solutions for the Sudoku puzzles are in the back of the book. The following Sudoku puzzles are in this book - 60 x 4/4 Sudoku puzzles - difficulty level: very easy- 60 x 6/6 Sudoku puzzles - difficulty level: very easy- 60 x 9/9 Sudoku puzzles - difficulty level: very easy This book is for kids and beginners.