Go Seigen, also known by his Chinese name Wu Qingyuan, is considered by many as the greatest Go player of the 20th century. This book is a brilliant selection of 200 tsumego problems created by Go Seigen over many years. The problems contain amazing tesuji which can be used in actual games. There are three levels of difficulty, and each problem includes a hint, so that even intermediate players can tackle them. The selected problems are of the highest quality and are uniquely creative. The reader will rediscover the subtleties of Go, while exploring the many unexpected sequences found in the problem solutions.