[Event "Vidmar Memorial 4th"] [Site "Ljubljana/Portoroz YUG"] [Date "1977.06.19"] [EventDate "?"] [Round "13"] [Result "1/2-1/2"] [White "Vitaly Tseshkovsky"] [Black "Gennady Borisovich Sosonko"] [ECO "C10"] [WhiteElo "?"] [BlackElo "2530"] [PlyCount "25"] 1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Bg5 Be7 7. Bxf6 Bxf6 8. Nxf6+ Qxf6 9. Bd3 O-O 10. O-O e5 11. dxe5 Nxe5 12. Nxe5 Qxe5 13. c3 1/2-1/2