[Event "Siegen olm"]
[Site "Siegen"]
[Date "1970.??.??"]
[Round "14"]
[White "Unzicker, Wolfgang"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo ""]
[BlackElo ""]
[ECO "B85"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 Qc7 7.O-O Nf6 8.Be3 d6
9.f4 Bd7 10.Qe1 b5 11.Bf3 b4 12.Nce2 Be7 13.Qg3 O-O 14.e5 dxe5 15.fxe5 Nxe5
16.Bxa8 Rxa8 17.Bh6 Nh5 18.Qh3 Nf6 19.Qg3 Nh5 20.Qh3 Nf6  1/2-1/2

