The Times Ultimate Killer Su Doku Book 7 features 120 challenging puzzles designed to test even the most experienced Su Doku enthusiasts. With contributions from The Times' top puzzle setters, this book promises to provide hours of brain-teasing entertainment. Perfect for those who enjoy a mental challenge, this collection of the deadliest Su Doku puzzles will keep you engaged and entertained for hours on end. Whether you're a seasoned pro or a beginner looking to improve your skills, this book is sure to provide a satisfying and stimulating experience.