Christof Sielecki is an International Master from Germany and a regular competitor in the super-strong German Bundesliga. He has produced over 700 instructional chess videos for his YouTube channel and also produces a regular video series for the Internet Chess Club

International Master Christof Sielecki presents a repertoire for Black based on the Nimzo-Indian and Bogo-Indian defences. The Nimzo-Indian has always enjoyed a reputation as a dynamic, reliable defence against 1 d4 and continues to be as popular as ever at all levels. When White avoids the Nimzo-Indian with 3 Nf3 or 3 g3, however, Black needs to find another solution. Sielecki solves this perennial problem by also offering a repertoire with the Bogo-Indian Defence. In both the Nimzo and the Bogo-Indian, Sielecki focuses on lines in which Black adopts a dark-square strategy. This creates a system-type approach which links the variations to a common theme, making the repertoire much easier to learn and understand. Using illustrative games, Sielecki examines the typical tactics and strategies for both sides, and highlights key move order issues. This book tells you all you need to know about playing the Nimzo and Bogo-Indian.