330 SUDOKU PUZZLES FOR ADULTS: medium - hard - extreme | Quiz Book With Instructions & Solutions | Classic 9x9 Puzzle Grid | Logic & Brain Teaser

* Sudoku puzzles are a proven method for keeping the mind healthy and combating Alzheimer's and Dementia! * Hours of entertainment! * 4 difficulty levels: medium - hard - very hard - extreme * Puzzles are in size 16 font, so that you will never suffer from eye-strain while doing them! * Format easy to use and to take everywhere (6" x 9" paperback) * Perfect gift for that special someone!

• | Author: Andrew Intelligent Andrew Intelligent Books
• | Publisher: Independently published
• | Publication Date: Dec 18, 2018
• | Number of Pages: 111 pages
• | Language: English
• | Binding: Paperback
• | ISBN-10: 1791977898
• | ISBN-13: 9781791977894