In 2012, the scientific world has lost N.N. Krasovskii, an extraordinary mathematician and mechanician whose works have prominently influenced a number of mathematic fields: differential equations, optimal control, and dynamic games theory. His research had profound effects on the development of mathematical research and education. In addition to his distinguished scientific contributions many of N.N. Krasovskiis disciples are academicians and corresponding members of the Russian Academy of Sciences, doctors and candidates of science, professors and engineers.