[Event "Calvia op"] [Site "Calvia"] [Date "2004.11.01"] [EventDate "?"] [Round "4"] [Result "1/2-1/2"] [White "Sergei Tiviakov"] [Black "Alexei Vladimirovich Barsov"] [ECO "C07"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "59"] 1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 Qxd5 5.Ngf3 cxd4 6.Bc4 Qd6 7.O-O Nf6 8.Nb3 Nc6 9.Nbxd4 Nxd4 10.Nxd4 a6 11.Re1 Qc7 12.Bb3 Bd6 13.h3 O-O 14.Bg5 Bh2+ 15.Kh1 Be5 16.c3 h6 17.Be3 Bf4 18.Qf3 Bxe3 19.Rxe3 Bd7 20.Rae1 a5 21.a3 a4 22.Ba2 Ra5 23.Qe2 Rfa8 24.Re5 Rxe5 25.Qxe5 Qxe5 26.Rxe5 Ra6 27.Kg1 Kf8 28.Kf1 Rd6 29.Ke2 g5 30.Bc4 1/2-1/2