True chess mastery demands a thorough understanding of the game's opening nuances, and this guide by an International Grandmaster offers detailed, seldom-discussed insights into the real significance of the opening. As Mr. Mednis notes in the Preface, " ... if you know the strategic theme of your opening well, understand how to apply it in middlegame play, and if necessary can also make use of your knowledge in the thematic endgame to follow, then...