[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1975.??.??"]
[Round "10"]
[White "Smejkal, Jan"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2635"]
[ECO "D18"]

1.Nf3 d5 2.d4 Nf6 3.c4 c6 4.Nc3 dxc4 5.a4 Bf5 6.e3 e6 7.Bxc4 Bb4 8.O-O O-O
9.Qb3 Qe7 10.Bd2 c5 11.d5 exd5 12.Nxd5 Nxd5 13.Bxd5 Nc6 14.Bc3 Be4 15.Rfd1 Bxd5
16.Rxd5 Rad8 17.Rad1 h6 18.R1d2 Rxd5 19.Rxd5 Rd8 20.h3 Bxc3 21.bxc3 b6 22.Qd1 Rxd5
23.Qxd5 Qe6 24.Qd3 g6 25.e4  1/2-1/2

