[Event "Santa Marta-ch 9th"]
[Site "Santa Marta"]
[Date "1999.07.11"]
[Round "7"]
[White "Acosta, Efrain"]
[Black "Santander Soto, Luis Carlos"]
[Result "0-1"]
[ECO "A34"]
[PlyCount "31"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 d6 2. c4 Nf6 3. Nc3 c5 4. a4 g6 5. g3 Bg7 6. f3 Nc6 7. Nge2 Nb4 8. Nf4 e6 9. Nb5 a6 10. Na3 0-0 11. Bg2 e5 12. Nd5 Nfxd5 13. cxd5 Nd3+ 14. Ke2 Nxc1+ 15. Qxc1 f5 16. Qc3 0-1

[Event "Santa Marta-ch 9th"]
[Site "Santa Marta"]
[Date "1999.07.10"]
[Round "6"]
[White "Ospino, Rafael"]
[Black "Acosta, Efrain"]
[Result "0-1"]
[ECO "B00"]
[PlyCount "25"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 a6 3. Nc3 d6 4. Bc4 e6 5. d3 b5 6. Bb3 Bb7 7. 0-0 h6 8. Be3 g5 9. Bd4 e5 10. Be3 Be7 11. d4 Nb4 12. dxe5 d5 13. exd5 0-1

[Event "Santa Marta-ch 9th"]
[Site "Santa Marta"]
[Date "1999.07.05"]
[Round "3"]
[White "Acosta, Efrain"]
[Black "Redondo, Elvis"]
[Result "0-1"]
[ECO "C42"]
[PlyCount "63"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. h4 Nc6 3. c3 Nf6 4. f3 Bc5 5. d4 exd4 6. cxd4 Bxd4 7. Bb5 0-0 8. Bxc6 Bxg1 9. Bg5 Bb6 10. Bxf6 Qxf6 11. Ba4 Qxb2 12. Nd2 Ba5 13. Bc2 b6 14. 0-0 Ba6 15. Rf2 Qd4 16. Nb3 Qxd1+ 17. Rxd1 d6 18. Nd4 c5 19. Nc6 Bc3 20. Ne7+ Kh8 21. Bb3 Bd4 22. Rxd4 cxd4 23. Rd2 d3 24. a4 h6 25. Nd5 Rad8 26. Nb4 Bb7 27. Nxd3 Ba6 28. Bc2 Rd7 29. e5 d5 30. f4 Rfd8 31. f5 Bxd3 32. Bxd3 0-1

[Event "Santa Marta-ch 9th"]
[Site "Santa Marta"]
[Date "1999.07.05"]
[Round "4"]
[White "Herrera, Anibal"]
[Black "Acosta, Efrain"]
[Result "1-0"]
[ECO "D11"]
[PlyCount "77"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 h6 4. Bf4 Nd7 5. e3 g5 6. Bg3 Ngf6 7. Nc3 Qa5 8. Qd2 Ne4 9. Nxe4 Qxd2+ 10. Nexd2 e6 11. c5 b6 12. b4 b5 13. Ne5 Nxe5 14. Bxe5 Rh7 15. Bd3 f5 16. Nb3 Ba6 17. Na5 Kd7 18. g4 Rf7 19. gxf5 exf5 20. h4 g4 21. a4 Bg7 22. Bxg7 Rxg7 23. Bxf5+ Kc7 24. Rg1 Rag8 25. Nb3 g3 26. axb5 gxf2+ 27. Kxf2 Rxg1 28. Rxg1 Rxg1 29. Kxg1 Bxb5 30. Nd2 Be2 31. Kf2 Bh5 32. Nf3 Kb7 33. Ne5 Be8 34. Bd7 Bxd7 35. Nxd7 Ka6 36. Ne5 Kb5 37. h5 a5 38. bxa5 Kxa5 39. Nxc6+ 1-0

[Event "Santa Marta-ch 9th"]
[Site "Santa Marta"]
[Date "1999.07.04"]
[Round "2"]
[White "Cabas, Yasser"]
[Black "Acosta, Efrain"]
[Result "1-0"]
[ECO "C41"]
[PlyCount "37"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 Bg4 4. Be2 h6 5. dxe5 Bxf3 6. Bxf3 dxe5 7. Qxd8+ Kxd8 8. Nc3 Bb4 9. Bd2 Ne7 10. 0-0-0 Ke8 11. Nd5 Nxd5 12. exd5 a5 13. Rhe1 Bxd2+ 14. Rxd2 Nd7 15. Bg4 f6 16. f4 Kd8 17. Bxd7 Kxd7 18. fxe5 Rhe8 19. e6+ 1-0

[Event "Santa Marta-ch 9th"]
[Site "Santa Marta"]
[Date "1999.07.03"]
[Round "1"]
[White "Acosta, Efrain"]
[Black "Constante, Juan"]
[Result "0-1"]
[ECO "C42"]
[PlyCount "18"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. h4 Nc6 3. c3 Nf6 4. a3 Bc5 5. d4 exd4 6. cxd4 Bxd4 7. Bb5 Bb6 8. Bg5 h6 9. Bxf6 Qxf6 0-1

