[Event "World Cup"]
[Round "2"]
[Site "Reykjavik"]
[Date "1991"]
[White "Portisch, Lajos"]
[WhiteElo "2570"]
[Black "Karpov, Anatoly"]
[BlackElo "2730"]
[Result "1/2-1/2"]
[ECO "E18"]
[Opening "Queen's Indian, Old Main line, 7.Nc3"]
 1. d4   Nf6
 2. c4   e6
 3. Nf3  b6
 4. g3   Bb7
 5. Bg2  Be7
 6. O-O  O-O
 7. Nc3  Ne4
 8. Nxe4 Bxe4
 9. Nh4  Bxg2
10. Nxg2 d5
11. Qa4  dxc4
12. Qxc4 c5
13. dxc5 Bxc5
14. Be3  Nd7
15. Rfd1 Qe7
16. Bxc5 
1/2-1/2