This activity book for adults was created and elaborated by an engineer, but with a great passion for sudoku. It is designed for all Sudoku lovers and enthusiasts, but due to its high level of complexity it is specifically geared for expert or very advanced players. It has 80 challenges that will test your logic, reasoning and patience like never before. We invite you to this challenge to test your problem-solving talent with these 80 puzzles designed by a Sudoku expert for only a small group of enthusiasts with a high IQ. Only 16 x 16 square grid puzzles are included in this Super Sudoku that we estimate will challenge even the most experienced Sudoku players. Each puzzle includes an area for annotations and calculations, a time table is also included so you can record the start and end of each challenge and keep track of the time taken to solve each sudoku to compare the speed and skill of solving the challenge with other players or experts. All solutions appear at the end of the book. 1. Contains 80 super puzzles designed by a Sudoku expert, with 16 x 16 grids, that will keep you busy for a few hours. 2. This Activity Book is recommended for expert players only, there are no warm-up puzzles, it goes straight to games with levels of complexity, difficult, very difficult or extreme. If you require to warm up before with 9 x 9 grids or low to intermediate difficulty levels, this activity book is definitely not for you. 3. Each page features a time-keeping chart, allowing you to track your progress and compete against yourself or your friends to see who can solve the puzzles the fastest. 4. Sudoku is proven to stimulate the brain by improving critical thinking, problem solving skills and memory retention. 5. This book provides countless hours of mental stimulation. Whether for commuting to work or just relaxing at home, it is the perfect way to keep the mind awake and entertained anytime, anywhere. 6. Solutions to all of the puzzles are included at the end of the book. 7. 192 pages. Size: 8 1/2 x 11 inches. 8. Puzzles printed in Large Format (One Sudoku game per page) for easy viewing. 9. Beautiful cover crafted with the help of Artificial Intelligence. 10. Age Range recommended: + 14 years to 100. Say goodbye to the ghost of Alzheimer's, say goodbye to boredom and hello to a satisfying mental escape from everyday anxieties. Grab your pencil and eraser, calculator (if you want), sharpen your mind and get ready to use the dendrites of each and every neuron in your brain to conquer each of the 80 challenges in this Super Sudoku.

Sudoku Puzzle Book: Sudoku Activity Book with 100 Puzzles for Adults, Hard Level This is the perfect book to buy for yourself. It will help you: - Keep your mind sharp with challenging puzzles - Pass the time while waiting at the doctor's office, DMV, or airport - Provide hours of entertainment especially on weekends and rainy days - Make road trips or subway commutes fly by It also makes an excellent gift. Family members, friends, and coworkers will love to receive this. Perfect for: - Birthdays - Christmas - Stockings stuffers - Gift exchanges - Graduations - Easter baskets Anyone who loves Sudoku, puzzles or a new challenge will love this book!

Sudoku Book For Adults 365 days From Beginner to Professional Volume.1! Sudoku Puzzles Book Details - Unique Sudoku puzzles in 365 days, - Large Print (8.5"x11") - 365 Days of Sudoku Book - All the answer included in back(No cheating!) - Guaranteed to have only ONE solution - Great for Beginner This Sudoku Puzzles Book is Perfect gift for that special someone Perfect as a gift! Buy it Now To Find Out Thank you for Watching Sudoku Book for Adults

Sudoku Book For Adults From Beginner to Professional Volume.2! **Larger Print*** Sudoku Puzzles Book Interior Details #Unique Sudoku puzzles in 4 difficulty levels, - Easy - Medium - Hard - Very Hard #Perfect gift for that special someone #All the answers are included in the back. Great for beginners! Perfect as a gift! Buy it Now To Find Out Thank you for Watching Sudoku Book for Adults

Sudoku Puzzle Book: Sudoku Activity Book with 100 Puzzles for Adults, Hard Level This is the perfect book to buy for yourself. It will help you: - Keep your mind sharp with challenging puzzles - Pass the time while waiting at the doctor's office, DMV, or airport - Provide hours of entertainment especially on weekends and rainy days - Make road trips or subway commutes fly by It also makes an excellent gift. Family members, friends, and coworkers will love to receive this. Perfect for: - Birthdays - Christmas - Stockings stuffers - Gift exchanges - Graduations - Easter baskets Anyone who loves Sudoku, puzzles or a new challenge will love this book!

Playing sudoku is perhaps the best thing you can do for your mind in today's world. Some studies affirm that sudoku puzzles constitute a sort of nourishment for neurons so as to be able to stimulate the memory and extend brain. They give you the opportunity to have a moment of relaxation and recreation during the day and at the same time help to keep your mind trained and to ward off dementia. It's like killing two birds with one stone! Is life difficult and stressful? Open Hard Sudoku for Adults and start your mental training. You will be struck by how much these puzzles will stimulate your mind and not make you think about anything else! So if you want to get these huge benefits from this fantastic game then click the "buy now" button!

Sudoku Book For Adults From Beginner to Professional Volume.1! **Larger Print*** Sudoku Puzzles Book Interior Details #Unique Sudoku puzzles in 4 difficulty levels, - Easy - Medium - Hard - Very Hard #Perfect gift for that special someone #All the answers are included in the back. Great for beginners! Perfect as a gift! Buy it Now To Find Out Thank you for Watching Sudoku Book for Adults