[Event "WchT Students 07th"] [Site "Leningrad URS"] [Date "1960.??.??"] [EventDate "?"] [Round "6"] [Result "1/2-1/2"] [White "KD Sales"] [Black "Josif Jovchev Stefanov"] [ECO "E61"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "36"] 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.g3 O-O 5.Bg2 d6 6.e4 Nbd7 7.Nge2 e5 8.O-O c6 9.h3 Qa5 10.d5 cxd5 11.cxd5 b5 12.b4 Qxb4 13.Rb1 Qc4 14.Ba3 a5 15.Rxb5 Nc5 16.Bxc5 dxc5 17.Qb3 Qxb3 18.Rxb3 Ba6 1/2-1/2