The Little Book of Sudoku 4 - Gareth Moore

The Little Book of Sudoku 4 contains over 200 brand new puzzles, commissioned especially for this book and created by an expert in logic and artificial intelligence.
The puzzles will test experts and train those unfamiliar with Sudoku, helping to build your logic and reasoning skills, improve your memory and keep your brain healthy and young by giving it a regular workout.
The perfect companion for the work commute, holidays and rainy afternoons, The Little Book of Sudoku Volume 4 will keep anyone's mind busy, but beware, as thousands of people have found, it's highly addictive!.

Dr Gareth Moore (B.Sc (Hons) M.Phil Ph.D) is the internationally bestselling author of a wide range of brain-training and puzzle books for both children and adults, including Anti-stress Puzzles, Ultimate Dot to Dot, Brain Games for Clever Kids, Lateral Logic, Extreme Mazes and The Ordinance Survey Puzzle Book. His books have sold over a million copies in the UK alone and have been published in 29 different languages.

He is also the creator of online brain-training site BrainedUp.com and runs the daily puzzle site PuzzleMix.com.