This book is for chess players seeking to enhance the tactical aspect of their game. Whether you are a newcomer aiming to elevate your skills or an experienced player striving to break through a plateau, this handbook serves as a valuable resource. You can revisit it anytime to review and sharpen your tactical abilities. Part of a series dedicated to checkmate tactics, this book aims to provide a comprehensive guide to the most common middle-game patterns. The books and chapters are designed to be solved in any order, allowing you to tailor your learning to your specific goals and areas of focus.