The author deals with the strategy of the middle game in positions typical for the Sicilian defence. More precisely, he deals with open Sicilian positions, which are characterized by a small center consisting of Pawns on d6 and e6, which is typical for the majority of Sicilian systems. The book contains 156 examples from practical games, which readers can analyse themselves or go directly to the detailed analysis and explanation in the second part of the book. 2 pictures. Further information about the book and a sample are available at schachversand-ullrich.de.