[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "15"]
[White "Smyslov, Vassily"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2535"]
[ECO "D94"]

1.c4 g6 2.d4 Nf6 3.Nc3 d5 4.Nf3 Bg7 5.e3 O-O 6.Bd2 c5 7.dxc5 Na6 8.cxd5 Nxc5
9.Bc4 Bf5 10.O-O Rc8 11.Qe2 Nfe4 12.Nd4 Nxd2 13.Qxd2 Ne4 14.Nxe4 Bxe4 15.Qb4 Bxd4
16.exd4 Bxd5 17.Bxd5 Qxd5 18.Qxe7  1/2-1/2

