 Complete the following phrase:  Viktor Ivanovich Ryzhkin ; born 26 April 1937 in Moscow is a former ice dancer who competed for the Soviet Union. With Lyudmila Pakhomova, whom he had initially coached, he won three Soviet national titles and placed 10th at the 1966 World Championships. Their partnership ended in 1966. With his next partner Irina Grishkova, Ryzhkin finished 4th at the 