The book consists of four main parts, which are divided into chapters. In the first part, an old continuation of 4. Kg5 d5 5. ed and all the variants associated with it are examined in detail. In the second part, the Traxler counterattack, which has become relevant today, is considered - 5. Kg5 Сс5. Move 4. d4, revealing the center, is examined in the third part. And finally, in the fourth part, other options of White on the fourth move are examined. The book, designed for highly skilled chess players, outlines the basic variants of the Two Knights Defense.