[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1964.??.??"]
[Round "?"]
[White "Van den Berg, Carel Benjamin"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo ""]
[BlackElo ""]
[ECO "C93"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O
9.h3 h6 10.d4 Re8 11.Nbd2 Bb7 12.a3 Bf8 13.Ba2 Qd7 14.b4 Rad8 15.Bb2 g6 16.Qb3 Bg7
17.Rad1 Re7 18.d5 Na7 19.c4 c6 20.dxc6 Nxc6 21.cxb5 axb5 22.Nf1 Qe8 23.Ne3 Nb8
24.Nd5 Nxd5 25.exd5 Nd7 26.Qe3 Rc8 27.Nd4 Nf6 28.Ne2 Rc2 29.Qb3 Rc4 30.Qf3 e4
31.Qg3 Rc2 32.Bxf6 Bxf6 33.Bb1 Be5 34.Qh4 Rcc7 35.Qxh6 Qa8 36.Qd2 Qxa3 37.Bxe4 Rc4
38.Bf3 Qxb4 39.Qg5 Rcc7 40.Ng3 Qf4 41.Qxf4 Bxf4 42.Rxe7 Rxe7 43.Rb1 Ba6 44.Ra1 Bc8
45.Ra8 Re1+ 46.Nf1 Re8 47.Rb8 Kg7 48.Ne3 Bd7 49.Rb7 Re7 50.Kf1 f5 51.Nc2 Be5
52.Be2 Kf6 53.Bxb5 Bxb5+ 54.Rxb5 Rc7 55.Ne3 Bd4  1/2-1/2

