Big Book of Stimulating Sudoku: Large Print Sudoku perfect to challenge yourself.

Perfect to keep your brain active. Great for all ages, from children to grandparents.Large Print Brain TrainingSuitable for all Ages.How to Play Instructions Included.Perfect for improving your working memory and multi-tasking abilitiesIncrease your brain's processing speeds.650 Sudoku Puzzles; 325 Normal & 352 Hard.Answer Key Included.Fun for rainy days, travel games or being stuck at home.What are you waiting for? Scroll up and buy now! Or look for one of our Big Book Series for Sudoku books dedicated to a single or a couple of difficulty levels only.A Great Gift Idea for those hard to buy for people.FriendsFamilyCo-WorkersTeacher's GiftsBirthday'sHoliday'sJust BecauseStocking Stuffer'sOr for anyone who wants to keep their mind active.