[Event "Buenos Aires BCA op"]
[Site "Buenos Aires"]
[Date "1989.??.??"]
[Round "1"]
[White "Markeluk, Sergio"]
[Black "Umbrazun, M."]
[Result "1-0"]
[ECO "A68"]
[WhiteElo "2360"]
[PlyCount "67"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 0-0 6. Nf3 Bg4 7. Be2 c5 8. d5 e6 9. 0-0 exd5 10. cxd5 a6 11. a4 Bxf3 12. Bxf3 Nbd7 13. Re1 Re8 14. Be3 Qc7 15. g4 Nb6 16. Qb3 Nfd7 17. a5 Nc8 18. Qc2 b5 19. axb6 Ncxb6 20. Kg2 Nc4 21. Bc1 Qd8 22. g5 f5 23. Re2 Bd4 24. Qd3 fxe4 25. Nxe4 Nce5 26. fxe5 Nxe5 27. Qa3 Rf8 28. Nf6+ Rxf6 29. gxf6 Qxf6 30. Be4 Rf8 31. Bh6 Qh4 32. Qh3 Rf2+ 33. Rxf2 Qxf2+ 34. Kh1 1-0

