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Introducing the perfect escape from the digital world: the Keen Logic Puzzle Book! In today's society, we are constantly surrounded by technology, and it's easy to get lost in the digital world. But with our Keen Puzzle Book, you can take a break from screens and immerse yourself in a challenging and rewarding puzzle game. Our book features over 90 Keen puzzles, ranging from easy to difficult, so you can start at your own pace and work your way up. And the best part? You won't need any devices or an internet connection to solve these puzzles. All you need is a pencil and some brainpower. Keen is a logic puzzle game that's similar to Sudoku but with a twist. It uses mathematical operations like addition, subtraction, multiplication, and division, along with a few other rules, to create a grid of numbers that must be filled in without repeating. It's a fun and engaging way to improve your problem-solving skills and exercise your mind. With our Keen Puzzle Book, you can enjoy a digital detox and focus on what's important: relaxation and mental stimulation. Whether you're commuting to work, traveling, or simply taking a break from screens, our book is the perfect way to unwind and challenge yourself. So why wait? Order your Keen Puzzle Book today and experience the joys of a digital detox while improving your cognitive skills.