Study brings wisdom. practice brings perfection. this book is the eagerly awaited follow-up to johan hellsten's acclaimed mastering chess strategy. in this new book hellsten focuses exclusively on opening play. he examines a wide variety of key subjects, including development, the centre, gambit play and punishing opponentsmistakes, providing the reader with a vital foundation in opening strategy. just like his previous book, mastering chess openings is a product of hellsten's many yearswork as