This book, in essence, is a textbook of positional game, which contains the best theoretical works of the outstanding grandmaster A. I. Nimtsovich: "My system", "My system in practice", "Chess blockade", "How I became a grandmaster", "On the history of the chess revolution of 1911 - 1914", "My system", as well as the article "Technique of tournament game". The book will contribute to the improvement of both beginners and qualified chess players.