Mastering basic corner shapes Step-by-step

In 52 chapters, an in-depth analysis of the most frequently occurring corner shapes and their origin is presented.
Each chapter consists of four problems of varying difficulty that are usually based on the same basic shape.
Most chapters offer a step-by-step approach where an otherwise difficult-to-solve problem is deconstructed into two or three easier problems.
The solution section analyzes the most relevant variations and failures, as well as typical mistakes by both players. Three appendices cover important, all too often not sufficiently understood aspects of bent-four in the corner, the ten-thousand-year ko, and the approach move ko.
In this revised and expanded edition -a first version was published for promotional purposes-, each set of problems is also analyzed in video format accessible via QR code in Yoon's Baduk Café.
All the problems are relevant to actual combat situations and the knowledge gained by working through the book will both benefit Kyu and Dan players.