100 sudoku puzzles to help you relieve stress and sharpen your mind!Doing sudokus is a fantastic way to stay mentally fit and improve your focus. With 200 puzzles ranging from very easy, easy, medium, to challenging—all in a minimalist, stylish design—this sudoku collection is perfect for anyone looking for a fun way to stimulate their brain! 200 sudokus: Ranging in difficulty from very easy, easy, medium, and challenging. Travel size: The book's 6" x 9" size makes it perfect for travel or on-the-go solving. Layflat and large print: The book lays flat for easy writing, and there's only one sudoku per page for easy visibility. Hardcover: Durable cover and premium paper, totaling 240 pages. Answer key included: Solutions to all puzzles are provided at the back of the book for quick reference. This sudoku book is brought to you by MOSH, a mission-driven brain health and wellness company that was founded by Maria Shriver and Patrick Schwarzenegger to inspire optimal brain health at every stage of life through nutrition, education, research, and advocacy. For more information, visit www.moshlife.com.