[Event "World Cup"]
[Round "?"]
[Site "Brussels"]
[Date "1988"]
[White "Portisch, Lajos"]
[WhiteElo "2610"]
[Black "Nunn, John DM"]
[BlackElo "2615"]
[Result "1/2-1/2"]
[ECO "E73"]
[Opening "King's Indian, 5.Be2"]
 1. d4   Nf6
 2. c4   g6
 3. Nc3  Bg7
 4. e4   d6
 5. Be2  O-O
 6. Bg5  h6
 7. Be3  c5
 8. d5   e6
 9. dxe6 Bxe6
10. Qd2  Kh7
11. h3   Nc6
12. Nf3  Qa5
13. Rd1  Nd7
14. Qxd6 Rad8
15. O-O  Qb4
16. Rb1  Rfe8
17. a3   Qb3
18. Qg3  Nd4
19. Bxd4 cxd4
20. Nd5  Nc5
21. Rfc1 Bxd5
22. cxd5 Qb6
23. Nd2  Nxe4
24. Nxe4 
1/2-1/2