This collection of tesuji problems was created by on of the most popular teaching professionals in Japan, Shirae Haruhiko 7 Dan. The original book is part of the Nihon Kiin series of poketto books especially designed for kyu players, but many dan players will find useful and innovative ideas in this volume. All of the problems are based on realistic situations that regularly occur in games.

Fighting skill is basically a matter of reading ability plus knowledge of tesuji. Study of tesuji collections is thus essential for becoming a stronger player.