MOSCOW, September 9 The Czech Republic advanced to the doubles semi-finals at the US Open, which ry takes place in New York. Schneider and Gavlichkova (1st seed) in the match of the 1/4 finals defeated the Slovenian Elu-Nala Milic and the Polish Malvina Rovinskaya with a score of 6:1, 6:1. The meeting lasted 44 minutes. In the semi-finals, Schneider and Gavlichkova will play with American Liv Hovde and Australian Teyla Preston (3rd seed).