This Sudoku 12X12 Puzzle Book Contains 100 Puzzles with Solutions. 12X12 Sudoku Puzzles are a type of very addicting Sudoku Variant. We are Sure that you will love this Sudoku Variation. Book Size Dimensions : 7.50"X9.25" No. of Puzzles : 100 Sudoku 12X12 Puzzles Difficulty Level : Sudoku 12X12 Easy Medium Hard Suitable for : Sudoku Puzzle Book Variety Suitable for Elderly, Inmates, Moms, Old People, Seniors, Young Adults, Teens and Teenagers Speciality : Sudoku One Puzzle per Page (So, it becomes very comfortable for the Sudoku Expert to focus on just one puzzle at a time while playing sudoku, Clutter Free Sudoku Solving Experience that our customers will definitely enjoy). Sudoku Type : Sudoku 12X12 (The structure of Sudoku 12X12 is such that solving becomes Sudoku Challenging. For Example of how this sudoku looks and how to solve hard Sudoku 12X12, please have a look at our Sudoku Puzzle Book Pages). If you are searching for Games Like Sudoku, Sudoku Variations, Puzzles Like Sudoku, Sudoku Like Puzzles, Sudoku Puzzle Book for Adults Easy to Medium to Hard, Sudoku and Other Puzzles, Sudoku to Go, Sudoku Book Large Print Easy to Hard, Sudoku Magazine Subscription, Sudoku Impossible and Sudoku Puzzle Book Set for Adults, then this Book is definitely for you. If you are looking for Sudoku for Moms, Sudoku for Seniors, Sudoku for Elderly, Sudoku for Adults Easy, Sudoku for Old People, Sudoku Activity Book for Adults, Sudoku for Inmates, Sudoku for Prisoners, Sudoku Puzzle Book for Teenager or Sudoku Puzzle Books for Teens, then you will surely love this book. If you are in search of Sudoku Difficult Large Print, Sudoku Expert Level, Sudoku Hard Large Print, Sudoku Extremely Hard, Sudoku Book Hard to Expert, Very Hard Sudoku, Sudoku Hardest for Adults, Hardest Sudoku Puzzle, Medium Sudoku Puzzle, Sudoku Difficult Level, Extreme Sudoku and Sudoku 12X12 Puzzle Book, then you will definitely like this book. Benefits of Playing Sudoku Puzzle Games: Sudoku boosts logical thinking. Playing Sudoku improves memory & recall. Playing Sudoku is proven to slow down the negative impact of Alzheimer's disease and Dementia. (However, Playing Sudoku should NOT be considered as a Medical Treatment Alternative. Sudoku is just a form of mental/brain exercise and NOT a treatment.) Sudoku helps to develop quick-thinking skills. Playing Sudoku helps to improve concentration. Puzzles like Sudoku help reduce anxiety & stress. Sudoku is a great way to develop a child's problem-solving skills. Sudoku promotes a healthy mindset.