[Event "Dortmunder Schachtage-12"]
[Site "Dortmund"]
[Date "1984.10.20"]
[Round "9"]
[White "Adorjan, Andras"]
[Black "Zapata, Alonso"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2470"]

1. c4 e5 2. Nc3 Nc6 3. Nf3 g6 4. d4 exd4 5. Nxd4 Bg7 6. Nxc6 bxc6 7. g3 Nf6 8. Bg2 O-O 9. O-O Bb7 10. Bg5 h6 11. Be3 Qe7 12. Qd2 Kh7 13. Rad1 a5 14. b3 d6 15. Qc2 Rfb8 16. c5 d5 17. Bd4 Re8 18. Qb2 Rad8 19. Rfe1 Nh5 20. Na4 f5 21. e3 Ba6 1/2-1/2