This book includes 50 visual spatial puzzles which start off simple but become increasingly challenging. The harder puzzles can even stump adults. So, these puzzles can be used as fun activities for the whole family. The logical part of our brain is the left side. The right brain deals with visual spatial information. Solving visual puzzles in this book helps train both the left and right brain in a fun way. Kevin Du has been a fan of math for as long as he remembers. From creating math games to play with friends to deriving formulas on napkins while waiting at a restaurant, he always wanted to find something interesting to do with math. He was motivated to create what he called "split puzzles" while teaching elementary school kids at a library. This was a fun way to train their logic and many kids liked it and kept asking for more.

This book includes 50 visual spatial puzzles which start off simple but become increasingly challenging. The harder puzzles can even stump adults. So, these puzzles can be used as fun activities for the whole family. The logical part of our brain is the left side. The right brain deals with visual spatial information. Solving visual puzzles in this book helps train both the left and right brain in a fun way.

The hottest craze in puzzles! From puzzlemaster and New York Times crossword editor Will Shortz comes sudoku, the new "wordless crossword" puzzle that's taking the world by storm! Once you start, you won't want to stop. These addictive puzzles are easy to explain--just fill the grid with numbers according to the few simple rules--but incredibly fun and engaging to complete. You don't need any mathematics knowledge: Just supply a pencil and an inquisitive mind. This brand-new collection features original sudoku ranging from effortlessly easy to devilishly difficult, along with an introduction from Will Shortz that explains these fascinating puzzles and how to solve them. If you're a crossword fan, a fan of logic puzzles, or just a puzzle lover in general, you will be engrossed and delighted with sudoku!

Have fun and flex your mental muscle with brainteasers, word searches, cryptograms, optical illusions, sudoku, frameworks, logic puzzles, trivia and more. Did you know that different parts of your brain control different functions, and that with exercise, you can make each part of your brain stronger? In The Total Brain Workout you’ll find 450 fun, challenging and absorbing puzzles designed to specifically target the core parts of your brain that control language, logic, memory, reasoning and visual perception. Each set of puzzles ranges from easy to challenging, and is presented with information on the area of your brain being targeted and the functions it controls, so you can customize your own workout to the specific areas you want to improve.

Designed by three puzzle-book pros and Mensa members, Mind-Melting Conundrums is brimming with almost 100 pages of number stumpers, logic problems, and verbal tests. Split into three levels of difficulty--called Super Brain, Mega Mind, and Ultra Genius--it gets more challenging as the pages progress. Kids, adults, and anyone else who enjoys a good dose of mental calisthenics will find themselves hooked by each marvelous, mind-melting puzzle.

Algorithmic puzzles are puzzles involving well-defined procedures for solving problems. This book will provide an enjoyable and accessible introduction to algorithmic puzzles that will develop the reader's algorithmic thinking. The first part of this book is a tutorial on algorithm design strategies and analysis techniques. Algorithm design strategies — exhaustive search, backtracking, divide-and-conquer and a few others — are general approaches to designing step-by-step instructions for solving problems. Analysis techniques are methods for investigating such procedures to answer questions about the ultimate result of the procedure or how many steps are executed before the procedure stops. The discussion is an elementary level, with puzzle examples, and requires neither programming nor mathematics beyond a secondary school level. Thus, the tutorial provides a gentle and entertaining introduction to main ideas in high-level algorithmic problem solving. The second and main part of the book contains 150 puzzles, from centuries-old classics to newcomers often asked during job interviews at computing, engineering, and financial companies. The puzzles are divided into three groups by their difficulty levels. The first fifty puzzles in the Easier Puzzles section require only middle school mathematics. The sixty puzzle of average difficulty and forty harder puzzles require just high school mathematics plus a few topics such as binary numbers and simple recurrences, which are reviewed in the tutorial. All the puzzles are provided with hints, detailed solutions, and brief comments. The comments deal with the puzzle origins and design or analysis techniques used in the solution. The book should be of interest to puzzle lovers, students and teachers of algorithm courses, and persons expecting to be given puzzles during job interviews.

This is not really a book. This is a building in the shape of a book...a maze. Each numbered page depicts a room in the maze. Tempted? Test your wits against mine. I guarantee that my maze will challenge you to think in ways you've never thought before. But beware. One wrong turn and you may never escape!