[Event "Sousse Interzonal"]
[Site "Sousse"]
[Date "1967.??.??"]
[Round "9"]
[White "Ivkov, Borislav"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo ""]
[BlackElo ""]
[ECO "B48"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qc7 5.Nc3 e6 6.Be3 a6 7.Bd3 Nf6 8.O-O Bd6
9.h3 b5 10.Kh1 Bf4 11.Qd2 Bxe3 12.Qxe3 Qb6 13.Nce2 Bb7 14.c3 O-O 15.Ng3 Rae8
16.a4 b4 17.Nxc6 Qxe3 18.fxe3 Bxc6 19.cxb4 Rb8 20.b5 axb5 21.a5 b4 22.a6 Rb6
23.Ra5 Ra8 24.a7 Kf8 25.Rfa1 Ke7 26.e5 Nd5 27.Nf1 Kd8 28.Kg1 Rb7 29.Nd2 Nb6
30.Nc4 Nc8 31.Bxh7 Rbxa7 32.Rxa7 Rxa7 33.Rxa7 Nxa7 34.Bc2 Ke7 35.Kf2 Nb5
36.h4 Bd5 37.Nb6 Bb7 38.g4  1/2-1/2

