Creativity of the ninth world champion Tigran Petrosyan is a bright and original page of chess art. Petrosyan's unique style of playing was distinguished by strategic depth, a subtle understanding of the position and an inimitable art of prevention. At the same time, the ninth world champion possessed an excellent sense of dynamics and sharp combination eyesight, as confirmed by the numerous diamond parties included in this collection. T. Petrosyan's works, commented on by him, will become an excellent guide for studying the positional games. For educational purposes, the parties are divided into thematic sections, each of which is preceded by a short introduction.