Put your brain through it's paces with this Brain Gym Pocket Series book of 200 Easy Sudoku puzzles, perfect for beginners. We exercise our bodies but our brains need a workout too. Sudoku helps keep your brain healthy and functioning well. Challenge yourself to finish all the puzzles without cheating! This book contains solutions to all the puzzles. 2 puzzles per page. 5.5" by 8.5".