[Event "Halle zt"]
[Site "Halle"]
[Date "1967.??.??"]
[Round "2"]
[White "Portisch, Lajos"]
[Black "Zwaig, Arne"]
[Result "1-0"]
[WhiteElo ""]
[BlackElo ""]
[ECO "A56"]

1.d4 Nf6 2.c4 c5 3.d5 e5 4.Nc3 d6 5.e4 Be7 6.g3 O-O 7.Bg2 Ne8 8.Nge2 Nd7
9.O-O g6 10.Bh6 Ng7 11.Qd2 Nf6 12.h3 Kh8 13.Be3 Nd7 14.Kh2 f5 15.f4 exf4
16.Bxf4 g5 17.Be3 Ne5 18.b3 Bd7 19.Ng1 a6 20.Nf3 Nf7 21.exf5 Nxf5 22.Bg1 g4
23.hxg4 N5h6 24.Ne4 Nxg4+ 25.Kh1 Qe8 26.Nh2 Nfe5 27.Rxf8+ Bxf8 28.Rf1 Bh6
29.Qb2 Bg7 30.Qe2 Qg6 31.Nd2 Re8 32.Be4 Qh6 33.Rf4 Nxh2 34.Rh4 Qg5 35.Bxh7 Qxh4
36.gxh4 Nef3 37.Be4 Nxd2 38.Qh5+ Kg8 39.Bh7+ Kf8 40.Bxh2  1-0

