★ Fun, challenging and educational! This is an excellent starter book of puzzles, the right choice for a child's first introduction to sudoku, a good activity that reinforces logic and problem-solving, this book is perfect for road trips or anytime you need some peace and quiet without resorting to turning on the TV. ★ Benefits Great way to keep a child busy and entertained! Really good for children to start to learn sudoku. A good way to increase a child's learning without feeling pressured. Great book for kids who love numbers. Great product that is portable and doesn't require an electronic device. 250 Sudoku The first section uses the numbers 1-6 and the second section is the traditional 9 number puzzle. The first page helps kids understand the basics of solving Sudoku, with solutions at the end of the book. For seniors: level of Sudoku perfect for mental exercise without suffering the frustration of adult formats. ★ Details of this book 90 4x4 puzzles. 90 6x6 puzzles. 90 9x9 puzzles. Size 6″ x 9″ The best gift for children! Scroll up and click Buy Now!