The Killer Sudoku! Yes, It's Too Hard for You! Large Print Sudoku Puzzles - Paperback

by Puzzle Therapist (Author)

This book wouldn't be called The Killer Sudoku for nothing, so only buy this book if you are ready for some really good brain-busting time. Sudoku is perfect for "me time" because it allows you to test yourself many times over. Benefits to solving these puzzles range from brain stimulation to improved logic and memory. Secure a copy today!