 Complete the following phrase:  Stolberg won the Rostov-on-Don City championship in 1938. The next year he took second in a Soviet master candidates tournament. In 1940, Stolberg shared first with Eduard Gerstenfeld in Kiev the 12th USSR-ch semi-final, and tied for 13-16th in Moscow the 12th USSR Chess Championship won jointly by Andor Lilienthal and Igor Bondarevsky. In June 1941, Stolberg was in fourth place in Rostov-on-Don the 13th USSR-ch semi-final, when the 