This is a Simple SUDOKU PUZZLE BOOK FOR Anyone and Everyone– 100 +puzzles ★ Easy to travel with ★ Designed to promote relaxation and the calmness of mind ★ Answers for every sudoku are included in the back ★ Many hours of fun! The Sudoku book is a wonderful gift for holidays and birthdays; for your friends, your parents, your spouse, and even your children. This book contains several easy, medium, and hard levels. The solution to each puzzle is in the back, in case you need help. Sudoku is a fun game for all ages that can be played anytime, anywhere, especially on a nice sunny day at the beach. So relax, grab a pencil, start training your brain and enjoy the Sudoku Brain Puzzle Book!