[Event "IBM"]
[Site "Amsterdam NED"]
[Date "1977.06.??"]
[Round "12"]
[White "Panno, Oscar R"]
[Black "Tatai, Stefano"]
[Result "1/2"]
[WhiteELO "2550"]
[BlackELO "2480"]
[WhiteTitle "IGM"]
[BlackTitle "IGM"]
[ECO "A34"]
[WhiteCountry "ARG"]
[BlackCountry "ITA"]
[PlyCount "56"]

1.c4 Nf6 2.Nc3 c5 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nxc3 6.bxc3 g6 7.Qa4+ Nd7 8.Nf3 Bg7 
9.O-O O-O 10.d4 a6 11.Qb3 b5 12.Rd1 Bb7 13.a4 Bc6 14.axb5 axb5 15.Be3 c4 16.Qb2 
Nb6 17.Bg5 f6 18.Bd2 Qd7 19.Ne1 Rxa1 20.Rxa1 Bxg2 21.Nxg2 Rb8 22.e4 e6 23.Ra5 Nc8 
24.Ne3 Rb7 25.f3 Kf7 26.Nc2 Bf8 27.Kg2 Be7 28.Na3 Ra7 1/2