[Event "Medellin Feria de las Flores op"]
[Site "Medellin"]
[Date "2008.08.06"]
[Round "1.32"]
[White "Castaneda Jimenez, Jhon David"]
[Black "Orrego, Dorance"]
[Result "0-1"]
[ECO "E94"]
[WhiteElo "2096"]
[BlackElo "2122"]
[PlyCount "120"]
[EventDate "2008.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Nf3 Nbd7 7. 0-0 e5 8. Qc2 c6 9. Be3 a6 10. Rfd1 Qc7 11. Ne1 Ne8 12. dxe5 Nxe5 13. h3 Be6 14. b3 f5 15. c5 fxe4 16. cxd6 Nxd6 17. Bc5 Rfd8 18. Nxe4 Nxe4 19. Qxe4 Bf5 20. Qe3 Re8 21. Qg3 Qa5 22. b4 Qc7 23. Rac1 Rad8 24. Bc4+ Kh8 25. Nd3 b5 26. Nxe5 Bxe5 27. f4 Bxf4 28. Qh4 bxc4 29. Rxd8 Rxd8 30. Re1 Bg3 31. Qf6+ Kg8 32. Bd4 Bxe1 33. Qh8+ Kf7 34. Qxh7+ Ke6 35. Qxc7 Rxd4 36. Qxc6+ Kf7 37. Qc7+ Kg8 38. Qb8+ Kh7 39. Qc7+ Kg8 40. g4 Be6 41. Qc5 Bc3 42. Qc6 Kf7 43. Qc7+ Kg8 44. Qb8+ Kh7 45. Qc7+ Kg8 46. Qb8+ Kg7 47. Qc7+ Bd7 48. Qe5+ Kh7 49. Qe7+ Kg8 50. Qd8+ Kf7 51. Qe7+ Kg8 52. a4 Rd1+ 53. Kf2 Bg7 54. Qd8+ Kh7 55. Qh4+ Kg8 56. Qd8+ Kf7 57. b5 axb5 58. axb5 c3 59. b6 c2 60. b7 c1Q 0-1

[Event "Medellin Feria de las Flores op"]
[Site "Medellin"]
[Date "2008.08.06"]
[Round "3.7"]
[White "Jimenez, Jose Mauricio"]
[Black "Orrego, Dorance"]
[Result "1-0"]
[ECO "E67"]
[WhiteElo "2203"]
[BlackElo "2122"]
[PlyCount "57"]
[EventDate "2008.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. d4 d6 6. c4 Nbd7 7. Nc3 e5 8. Qc2 c6 9. Rd1 Qe7 10. dxe5 dxe5 11. b3 Re8 12. e4 Nf8 13. a4 Bg4 14. Ba3 Qe6 15. a5 Qc8 16. Bd6 Ne6 17. Ne2 Nd7 18. b4 c5 19. bxc5 Bxf3 20. Bxf3 Ndxc5 21. Rd5 Qc6 22. Bg4 h5 23. Bh3 b6 24. Rad1 Ng5 25. Bg2 Nb7 26. h4 Nh7 27. a6 Nxd6 28. Rxd6 Qc8 29. Qa4 1-0

[Event "Medellin Feria de las Flores op"]
[Site "Medellin"]
[Date "2008.08.06"]
[Round "6.23"]
[White "Orrego, Dorance"]
[Black "Mateus Urbano, Luis Alejandro"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "2122"]
[BlackElo "2191"]
[PlyCount "44"]
[EventDate "2008.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. 0-0 h6 5. b3 Bf5 6. Bb2 Nbd7 7. c4 e6 8. Nc3 Bd6 9. d4 0-0 10. Qc1 Qe7 11. Rd1 dxc4 12. bxc4 Rfd8 13. Re1 e5 14. e4 Bh7 15. dxe5 Nxe5 16. Nxe5 Bxe5 17. h3 Bd4 18. Nd1 Qc5 19. Kh2 Bxf2 20. Nxf2 Qxf2 21. Rf1 Qe2 22. Bxf6 Rd2 0-1

[Event "Medellin Feria de las Flores op"]
[Site "Medellin"]
[Date "2008.08.06"]
[Round "4.19"]
[White "Orrego, Dorance"]
[Black "Morales, Jaime Andres"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "2122"]
[BlackElo "2105"]
[PlyCount "51"]
[EventDate "2008.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Qc2 c6 6. cxd5 exd5 7. e3 h6 8. Bxf6 Bxf6 9. Nf3 0-0 10. Bd3 Be6 11. 0-0 Nd7 12. Rab1 Bg4 13. Nd2 c5 14. Nxd5 cxd4 15. exd4 Bxd4 16. Be4 Nf6 17. Nxf6+ Qxf6 18. Nb3 Rac8 19. Qd2 Bb6 20. Bxb7 Rfd8 21. Qb4 Bf5 22. Be4 Bxe4 23. Qxe4 Re8 24. Qd3 Red8 25. Qe4 Re8 26. Qd3 1/2-1/2

[Event "Medellin Feria de las Flores op"]
[Site "Medellin"]
[Date "2008.08.06"]
[Round "9.21"]
[White "Orrego, Dorance"]
[Black "Orozco, Lina Yomayra"]
[Result "0-1"]
[ECO "A57"]
[WhiteElo "2122"]
[BlackElo "2072"]
[PlyCount "54"]
[EventDate "2008.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. f3 axb5 6. e4 Qb6 7. Na3 Ba6 8. Qb3 b4 9. Nc4 Qc7 10. Bg5 d6 11. Nh3 Nbd7 12. Be2 h6 13. Bc1 g6 14. 0-0 Bg7 15. Bd3 0-0 16. f4 Bxc4 17. Bxc4 Nxe4 18. f5 Ne5 19. fxg6 fxg6 20. Nf4 Qd7 21. Ne6 Rxf1+ 22. Bxf1 Ng4 23. Qc2 Qxe6 24. dxe6 Bd4+ 25. Kh1 Nef2+ 26. Qxf2 Nxf2+ 27. Kg1 Rf8 0-1

[Event "Medellin Feria de las Flores op"]
[Site "Medellin"]
[Date "2008.08.06"]
[Round "2.14"]
[White "Orrego, Dorance"]
[Black "Vargas Arteaga, Alexis"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2122"]
[BlackElo "2177"]
[PlyCount "57"]
[EventDate "2008.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Bg5 c6 5. cxd5 exd5 6. Nc3 Be7 7. e3 Nbd7 8. Qc2 Nf8 9. Bd3 Ne6 10. Bxf6 Bxf6 11. 0-0 g6 12. Rab1 0-0 13. b4 a6 14. Na4 Qc7 15. Nc5 Nxc5 16. bxc5 Qe7 17. Rb2 Bg7 18. Rfb1 f5 19. g3 Rf7 20. Rb6 Bf6 21. Qd2 g5 22. Qc2 Qe6 23. Re1 g4 24. Ne5 Bxe5 25. dxe5 Qxe5 26. Rb4 h5 27. Rd4 Be6 28. Qb2 Re8 29. Rxg4+ 1-0

[Event "Medellin Clavijo Memorial"]
[Site "Medellin"]
[Date "2000.??.??"]
[Round "4"]
[White "Arroyave, Jhon Jairo"]
[Black "Orrego, Dorance"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "44"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 e6 5. d3 Be7 6. Bg5 0-0 7. Nbd2 Nc6 8. d4 b6 9. 0-0 Bb7 10. Rc1 Nh5 11. Bxe7 Nxe7 12. Bd3 Nf4 13. Bb1 Neg6 14. Re1 Qe7 15. Nf1 Rac8 16. Qd2 Qf6 17. Ng3 Rfd8 18. Qe3 Qe7 19. Red1 Qf6 20. e5 Nxg2 21. exf6 Nxe3 22. Re1 Ng4 0-1

[Event "Medellin Clavijo Memorial"]
[Site "Medellin"]
[Date "2000.??.??"]
[Round "5"]
[White "Orrego, Dorance"]
[Black "Betancur, William Alejandro"]
[Result "0-1"]
[ECO "E17"]
[PlyCount "122"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 e6 3. d4 b6 4. Bg2 Bb7 5. 0-0 d5 6. c4 Nbd7 7. b3 Be7 8. Bb2 0-0 9. Nc3 c5 10. cxd5 Nxd5 11. dxc5 Nxc5 12. Nxd5 Bxd5 13. Be5 Bf6 14. Bxf6 Qxf6 15. Qd4 Qxd4 16. Nxd4 Bxg2 17. Kxg2 Rfd8 18. Rfd1 a5 19. Kf3 Kf8 20. Nc6 Rxd1 21. Rxd1 Rc8 22. Ne5 Ke7 23. Nc4 Rc6 24. Ne5 Rc8 25. Nc4 Rc6 26. Ne5 Rc7 27. Nc4 Nd7 28. Rd2 a4 29. e3 f6 30. h4 axb3 31. axb3 h6 32. Ra2 b5 33. Nd2 f5 34. Ra5 Rc2 35. Ke2 Nc5 36. Ra7+ Kf6 37. Rc7 Rc1 38. Ra7 b4 39. f4 Rc3 40. Nf3 Kg6 41. h5+ Kxh5 42. Rxg7 Rxb3 43. Ne5 Rb2+ 44. Kf3 Ne4 45. g4+ Kh4 46. gxf5 exf5 47. Nd3 Rd2 48. Rg6 Kh5 49. Rg2 Rxd3 50. Rg1 Rd2 51. Rh1+ Kg6 52. Rxh6+ Kf7 53. Rh7+ Ke6 54. Re7+ Kd5 55. Re5+ Kc4 56. Rxf5 Nc3 57. Rf8 b3 58. Rc8+ Kb4 59. Rb8+ Nb5 60. Rh8 b2 61. Rh1 Nc3 0-1

[Event "Medellin Clavijo Memorial"]
[Site "Medellin"]
[Date "2000.??.??"]
[Round "6"]
[White "Orrego, Dorance"]
[Black "Cespedes, Cesar Ivan"]
[Result "1-0"]
[ECO "B93"]
[PlyCount "97"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. g3 e5 8. Nde2 b5 9. a3 Bb7 10. Bg2 Nbd7 11. fxe5 dxe5 12. Bg5 Bc5 13. Qd3 h6 14. Bxf6 Nxf6 15. Nd5 Nxd5 16. exd5 0-0 17. 0-0-0 Bd6 18. g4 b4 19. a4 Qd7 20. Qf5 Qxa4 21. Be4 g6 22. Qf6 Qd7 23. Ng3 Qe7 24. Qf3 Bc8 25. h4 a5 26. Rdg1 Ra6 27. Nf5 Bxf5 28. gxf5 Bc5 29. Rg3 a4 30. Qh5 Kg7 31. fxg6 f6 32. Qe2 Ra5 33. d6 Bxd6 34. Kb1 f5 35. Bd3 e4 36. Re3 a3 37. bxa3 Qb7 38. Bc4 bxa3+ 39. Rb3 a2+ 40. Kb2 Qa7 41. Ra1 Be5+ 42. c3 Rc8 43. Be6 Rxc3 44. Rxc3 Qb6+ 45. Bb3 Bxc3+ 46. Kxc3 Qf6+ 47. Kd2 Qxa1 48. Qc4 Qb2+ 49. Ke3 1-0

[Event "Medellin Clavijo Memorial"]
[Site "Medellin"]
[Date "2000.??.??"]
[Round "3"]
[White "Orrego, Dorance"]
[Black "Clavijo, Jose A Jr"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "89"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. d4 d5 4. g3 c5 5. Bg2 Nc6 6. dxc5 Bxc5 7. 0-0 0-0 8. cxd5 exd5 9. a3 a5 10. Qc2 Ne4 11. Nbd2 Nxd2 12. Bxd2 Ba7 13. Ng5 g6 14. Qa4 Nd4 15. e4 h6 16. Nxf7 Rxf7 17. exd5 Nf3+ 18. Bxf3 Rxf3 19. Qe4 Rf6 20. Bc3 Bh3 21. Qh4 Bxf1 22. Bxf6 Bxf2+ 23. Kxf1 Qb6 24. Bc3 Rf8 25. Kg2 Qd6 26. Qe4 Bc5 27. b4 Rf2+ 28. Kh1 Ba7 29. bxa5 Bb8 30. Kg1 Ba7 31. Kh1 Qa6 32. Qe8+ Rf8 33. Qe6+ Qxe6 34. dxe6 Re8 35. Re1 Kf8 36. e7+ Kf7 37. Bb4 h5 38. Rf1+ Ke6 39. Rf8 Kd7 40. Rxe8 Kxe8 41. Kg2 Bd4 42. Kf3 Bf6 43. Ke4 Bxe7 44. Bxe7 Kxe7 45. Ke5 1-0

[Event "Medellin Clavijo Memorial"]
[Site "Medellin"]
[Date "2000.??.??"]
[Round "7"]
[White "Orrego, Dorance"]
[Black "Henao, Raul Fernando"]
[Result "0-1"]
[ECO "A37"]
[BlackElo "2395"]
[PlyCount "88"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 c5 2. g3 g6 3. Bg2 Bg7 4. c4 Nc6 5. 0-0 e5 6. Nc3 Nge7 7. d3 0-0 8. Rb1 d6 9. a3 a5 10. Nd5 Rb8 11. e4 b5 12. Nxe7+ Qxe7 13. Be3 bxc4 14. dxc4 Be6 15. Qa4 Qc7 16. Rfc1 Rb7 17. Qd1 Rfb8 18. b3 h6 19. Nd2 Qd7 20. a4 Rb4 21. Bf1 Kh7 22. Bd3 Kg8 23. Ra1 R4b7 24. Rab1 Kh8 25. Ra1 f5 26. Rab1 Rf8 27. f3 h5 28. Nf1 f4 29. Bd2 fxg3 30. hxg3 Nd4 31. Be2 Qf7 32. Kg2 Rfb8 33. Rc3 Kh7 34. Be3 Bh6 35. Bxh6 Kxh6 36. Nd2 Kg7 37. Nf1 Bd7 38. Bd3 Qe6 39. Bc2 Qh3+ 40. Kg1 h4 41. gxh4 Rf8 42. Nh2 Bg4 43. Qf1 Qg3+ 44. Qg2 Ne2+ 0-1

[Event "Medellin Clavijo Memorial"]
[Site "Medellin"]
[Date "2000.??.??"]
[Round "2"]
[White "Rodas, Raul"]
[Black "Orrego, Dorance"]
[Result "0-1"]
[ECO "B20"]
[PlyCount "40"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. d3 Nc6 3. f4 d6 4. Nf3 g6 5. g3 Bg7 6. c3 Nf6 7. Bg2 0-0 8. 0-0 Rb8 9. Na3 b5 10. Rb1 a5 11. b3 b4 12. cxb4 axb4 13. Nc4 Ra8 14. a4 bxa3 15. Bxa3 Rb8 16. e5 Nd5 17. Bb2 dxe5 18. Nfxe5 Nxe5 19. Bxe5 Bxe5 20. Bxd5 Bd4+ 0-1

[Event "Medellin Chance Virtual op"]
[Site "Medellin"]
[Date "1999.??.??"]
[Round "1"]
[White "Espinosa, Julio Manuel"]
[Black "Orrego, Dorance"]
[Result "1-0"]
[ECO "B21"]
[WhiteElo "2290"]
[PlyCount "39"]
[EventDate "1999.03.31"]
[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 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Nf3 a6 6. Bc4 Ne7 7. Bg5 d6 8. 0-0 Nbc6 9. Re1 h6 10. Bh4 Qc7 11. Rc1 Ng6 12. Bg3 Nge5 13. Bb3 Be7 14. Nd5 exd5 15. Nxe5 dxe5 16. exd5 Bf6 17. dxc6 b5 18. f4 0-0 19. fxe5 Bg5 20. e6 1-0

[Event "Medellin Chance Virtual op"]
[Site "Medellin"]
[Date "1999.??.??"]
[Round "2"]
[White "Orrego, Dorance"]
[Black "Gamboa, Nelson"]
[Result "1/2-1/2"]
[ECO "A21"]
[BlackElo "2411"]
[PlyCount "71"]
[EventDate "1999.03.31"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 f5 2. g3 Nf6 3. Bg2 g6 4. 0-0 Bg7 5. c4 d6 6. Nc3 e5 7. d3 0-0 8. Rb1 a5 9. a3 h6 10. b4 axb4 11. axb4 g5 12. b5 Be6 13. Bb2 Nbd7 14. Ra1 Rxa1 15. Qxa1 f4 16. Qa7 g4 17. Nd2 Nc5 18. Bxb7 f3 19. exf3 Nxd3 20. Qa3 gxf3 21. Bxf3 e4 22. Bg2 e3 23. fxe3 Ng4 24. Nd1 Nxb2 25. Nxb2 Rxf1+ 26. Nxf1 Qf8 27. Nd3 Bxc4 28. Nf4 Ne5 29. Nd2 Bf7 30. Qa7 Qe8 31. Qxc7 Qxb5 32. Qxd6 Qb2 33. Qd8+ Bf8 34. h3 Qc1+ 35. Kh2 Qb2 36. Nd5 1/2-1/2

[Event "Medellin Chance Virtual op"]
[Site "Medellin"]
[Date "1999.??.??"]
[Round "3"]
[White "Orrego, Dorance"]
[Black "Rios Parra, Mauricio Flores"]
[Result "1/2-1/2"]
[ECO "D78"]
[BlackElo "2375"]
[PlyCount "79"]
[EventDate "1999.03.31"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. c4 c6 6. d4 d5 7. b3 Nbd7 8. Bb2 b5 9. Nbd2 bxc4 10. bxc4 Rb8 11. Qc2 Nb6 12. Ne5 Bb7 13. e3 Nfd7 14. Nxd7 Qxd7 15. Rfc1 Ba6 16. cxd5 cxd5 17. Ba3 Rfc8 18. Bc5 Na4 19. Rab1 Rxb1 20. Qxb1 Nxc5 21. Rxc5 Rxc5 22. dxc5 Be5 23. Qb3 e6 24. Nf3 Bc7 25. Bf1 Bxf1 26. Kxf1 Qc8 27. a4 Qa6+ 28. Qb5 Qxb5+ 29. axb5 e5 30. e4 dxe4 31. Ng5 Kf8 32. Nxe4 Ke7 33. Ke2 Ke6 34. Kd3 Kd5 35. f3 h6 36. c6 f5 37. Nf6+ Ke6 38. Nd7 Kd5 39. Nf6+ Ke6 40. Nd7 1/2-1/2

[Event "COL-ch sf"]
[Site "Barranquilla"]
[Date "1995.??.??"]
[Round "7"]
[White "Caballero, William"]
[Black "Orrego, Dorance"]
[Result "1/2-1/2"]
[ECO "E85"]
[PlyCount "76"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. f3 d6 6. Be3 Nc6 7. Nge2 e5 8. d5 Na5 9. Ng3 c5 10. Rb1 Ne8 11. Bd3 f5 12. Nge2 Bh6 13. Bf2 b6 14. a3 Bd7 15. b4 Nb7 16. Qc2 Rc8 17. h4 f4 18. Qa2 Rf7 19. Bc2 Qc7 20. Bd3 Bf8 21. b5 Qd8 22. Nc1 g5 23. hxg5 Qxg5 24. Nb3 Rg7 25. Ke2 Be7 26. Rbg1 h5 27. Bh4 Qg6 28. Bxe7 Rxe7 29. a4 Nc7 30. a5 Ra8 31. Kf1 Rg7 32. Ne2 Qg5 33. Rh2 a6 34. axb6 axb5 35. Qb2 bxc4 36. Bxc4 Na6 37. Qa1 Nc7 38. Qb2 Na6 1/2-1/2

[Event "Antioquia-ch"]
[Site "Medellin"]
[Date "1995.??.??"]
[Round "?"]
[White "Cespedes, Cesar Ivan"]
[Black "Orrego, Dorance"]
[Result "1/2-1/2"]
[ECO "E90"]
[PlyCount "109"]
[EventDate "1995.??.??"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Nf3 d6 6. h3 Nbd7 7. Be3 e5 8. dxe5 dxe5 9. Qd2 c6 10. 0-0-0 Qa5 11. Kb1 Re8 12. g4 Rb8 13. Be2 a6 14. Nd5 Qxd2 15. Nxf6+ Bxf6 16. Nxd2 Nf8 17. Nb3 Ne6 18. h4 b6 19. Rd6 c5 20. h5 Be7 21. Rd2 Bb7 22. f3 Rbd8 23. hxg6 fxg6 24. Nc1 Bg5 25. Bxg5 Nxg5 26. Nd3 Kg7 27. Kc1 Rd4 28. b3 Red8 29. Rhd1 Kf6 30. Ne1 Ne6 31. Nc2 Rxd2 32. Rxd2 Kg5 33. Rxd8 Nxd8 34. Ne3 Kf4 35. Kd2 Nf7 36. Ng2+ Kg3 37. Ne1 h5 38. gxh5 gxh5 39. Ke3 h4 40. Bf1 h3 41. Bxh3 Kxh3 42. f4 Kg4 43. Nd3 exf4+ 44. Nxf4 Ng5 45. Nd3 Nxe4 46. a3 a5 47. Ne5+ Kf5 48. Nd7 Ke6 49. Nxb6 Bc6 50. Nc8 Nd6 51. Na7 Kd7 52. Kd3 a4 53. b4 cxb4 54. axb4 Kc7 55. c5 1/2-1/2

[Event "Antioquia-ch"]
[Site "Medellin"]
[Date "1995.??.??"]
[Round "?"]
[White "Clavijo, Jorge Mario"]
[Black "Orrego, Dorance"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2380"]
[PlyCount "51"]
[EventDate "1995.??.??"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 0-0 7. Bd3 Nbd7 8. Nge2 c5 9. 0-0 a6 10. Bxf6 Nxf6 11. dxc5 Bxc5 12. Qb3 b5 13. Rac1 Bd6 14. h3 Bb8 15. Rfd1 Be6 16. Qb4 Qd6 17. Qxd6 Bxd6 18. Bc2 Rfd8 19. Bb3 Kf8 20. Nd4 Rac8 21. Kf1 Ke7 22. Nxd5+ Bxd5 23. Rxc8 Rxc8 24. Nf5+ Ke6 25. Nxg7+ Ke5 26. f4+ 1-0

[Event "Antioquia-ch"]
[Site "Medellin"]
[Date "1995.??.??"]
[Round "?"]
[White "Delgado, Juan Carlos"]
[Black "Orrego, Dorance"]
[Result "1/2-1/2"]
[ECO "A65"]
[PlyCount "82"]
[EventDate "1995.??.??"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f3 a6 8. a4 Bg7 9. Bd3 0-0 10. Nge2 Re8 11. Bg5 Nbd7 12. Qd2 Rb8 13. 0-0 Qc7 14. b3 Nb6 15. Rac1 Na8 16. Kh1 Nb6 17. Ng3 Nbd7 18. Be2 Qd8 19. Rfe1 Qe7 20. h3 Qf8 21. Bf4 b6 22. Rb1 Ne5 23. b4 Nfd7 24. Be3 cxb4 25. Rxb4 Nc5 26. Reb1 Ned7 27. Rc4 Qe7 28. Na2 a5 29. Nc3 Qh4 30. Nf1 Qe7 31. Nb5 Ba6 32. Qc2 h6 33. Qd1 Ne5 34. Rcc1 g5 35. Ng3 Bc8 36. Nd4 Qf6 37. Ndf5 Bf8 38. Bb5 Rd8 39. Bd4 Qg6 40. Ne3 h5 41. Ngf5 Kh7 1/2-1/2

[Event "Antioquia-ch"]
[Site "Medellin"]
[Date "1995.??.??"]
[Round "?"]
[White "Echavarria, Gustavo"]
[Black "Orrego, Dorance"]
[Result "0-1"]
[ECO "B06"]
[PlyCount "81"]
[EventDate "1995.??.??"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Bc4 d6 5. Nf3 e6 6. a4 d5 7. Bb3 Nd7 8. 0-0 Ne7 9. Be3 0-0 10. Qd2 Re8 11. Ng5 Nf6 12. f3 a5 13. Qf2 h6 14. Nh3 Nh7 15. Rad1 b6 16. Qd2 g5 17. Nf2 f5 18. g3 Ba6 19. Rfe1 Qd6 20. Kg2 Rf8 21. e5 Qd8 22. f4 Ng6 23. fxg5 hxg5 24. Nh3 f4 25. gxf4 gxf4 26. Bxf4 Nxf4+ 27. Nxf4 Qg5+ 28. Kf3 Rxf4+ 29. Qxf4 Rf8 30. Qxf8+ Kxf8 31. Rg1 Qf5+ 32. Kg2 Qg4+ 33. Kf2 Qh4+ 34. Rg3 Bh6 35. Kg1 Bf4 36. Rg2 Ng5 37. Ne2 Bxe2 38. Rxe2 Bxh2+ 39. Kf1 Qh3+ 40. Ke1 Ne4 41. c4 0-1

[Event "Antioquia-ch"]
[Site "Medellin"]
[Date "1995.??.??"]
[Round "?"]
[White "Echavarria, Johann"]
[Black "Orrego, Dorance"]
[Result "1-0"]
[ECO "C41"]
[PlyCount "47"]
[EventDate "1995.??.??"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 exd4 6. Qxd4 h6 7. Bf4 g5 8. Bg3 Bg7 9. 0-0-0 0-0 10. Qd2 Nh5 11. Nd4 Nxg3 12. hxg3 Ne5 13. Be2 a6 14. Nd5 Nc6 15. Nf5 Bxf5 16. exf5 Nd4 17. f6 Nxe2+ 18. Qxe2 Bxf6 19. Rxh6 Bg7 20. Qh5 f6 21. Rh1 Bxh6 22. Qxh6 Kf7 23. Qh7+ Ke6 24. Nxc7+ 1-0

[Event "COL-ch sf"]
[Site "Barranquilla"]
[Date "1995.??.??"]
[Round "10"]
[White "Gutierrez, Jaime"]
[Black "Orrego, Dorance"]
[Result "1-0"]
[ECO "B12"]
[PlyCount "79"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. g4 Bg6 5. h4 h6 6. Nh3 e6 7. Nf4 Bh7 8. Bd3 Bxd3 9. Nxd3 Nd7 10. Be3 b6 11. f4 Be7 12. Bf2 Qc7 13. f5 0-0-0 14. Nd2 h5 15. fxe6 fxe6 16. Nf4 Nf8 17. g5 g6 18. 0-0 Kb7 19. c3 Rh7 20. b4 Re8 21. Qc2 Rg7 22. a4 Bd8 23. c4 Ne7 24. a5 Rf7 25. Nd3 Kc8 26. axb6 axb6 27. Ra8+ Kd7 28. Rfa1 Nc8 29. cxd5 exd5 30. Bg3 Ne6 31. Qb2 Ref8 32. Kg2 Be7 33. b5 c5 34. dxc5 Bxc5 35. R1a6 Qb7 36. Qa2 Nc7 37. e6+ Nxe6 38. R6a7 Nxa7 39. Rxa7 Qxa7 40. Qxa7+ 1-0

[Event "COL-ch sf"]
[Site "Barranquilla"]
[Date "1995.??.??"]
[Round "2"]
[White "Orduz, Holger"]
[Black "Orrego, Dorance"]
[Result "1/2-1/2"]
[ECO "C41"]
[PlyCount "68"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Be2 Be7 6. 0-0 c6 7. a4 h6 8. h3 Qc7 9. Be3 g5 10. Nh2 Nf8 11. Bf3 Ng6 12. Ne2 Nf4 13. Ng3 Bd7 14. Qd2 0-0-0 15. c4 h5 16. Nf5 Bxf5 17. exf5 c5 18. d5 a5 19. Rfc1 b6 20. Rc3 Rh7 21. h4 g4 22. Bd1 Ne4 23. Qc2 Nxc3 24. f6 Nce2+ 25. Bxe2 Nxe2+ 26. Kf1 Rhh8 27. fxe7 Rde8 28. Kxe2 Qxe7 29. Qf5+ Qd7 30. Qxd7+ Kxd7 31. Nf1 f5 32. Bg5 Ref8 33. Ra3 Rf7 34. Rb3 Kc7 1/2-1/2

[Event "Antioquia-ch+"]
[Site "Medellin"]
[Date "1995.??.??"]
[Round "?"]
[White "Orrego, Dorance"]
[Black "Alzate Londono, William"]
[Result "1-0"]
[ECO "A09"]
[PlyCount "91"]
[EventDate "1995.??.??"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nc6 3. c4 d4 4. d3 e5 5. Bg2 Be7 6. 0-0 f5 7. e3 Nf6 8. exd4 exd4 9. Na3 0-0 10. Nc2 Ng4 11. Re1 Bd6 12. Bg5 Nf6 13. a3 f4 14. b4 fxg3 15. fxg3 Bg4 16. Qd2 Bxf3 17. Bxf3 Ne5 18. Bxb7 Rb8 19. Bxf6 Qxf6 20. Bd5+ Kh8 21. c5 Be7 22. Qe2 Ng6 23. Rf1 Qg5 24. Bg2 Bf6 25. Rae1 a5 26. Be4 Rfe8 27. Rf5 Qxf5 28. Bxf5 Rxe2 29. Rxe2 axb4 30. axb4 Ne7 31. Be4 Kg8 32. Kf2 c6 33. Re1 Kf7 34. Ra1 Ke6 35. Ra6 Kd7 36. Ra7+ Ke6 37. Ke2 h5 38. Kd1 Ke5 39. Rc7 h4 40. Bxc6 hxg3 41. hxg3 Nf5 42. b5 Nxg3 43. b6 Nf5 44. Nb4 Ne3+ 45. Kc1 Bd8 46. Bb7 1-0

[Event "COL-ch sf"]
[Site "Barranquilla"]
[Date "1995.??.??"]
[Round "4"]
[White "Orrego, Dorance"]
[Black "Cespedes, Cesar Ivan"]
[Result "0-1"]
[ECO "C77"]
[PlyCount "119"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Be7 7. c3 d6 8. h3 Bb7 9. 0-0 0-0 10. Qe2 Na5 11. Bc2 c5 12. Nbd2 Nc6 13. Re1 Re8 14. Nf1 Bf8 15. Kh2 d5 16. Bg5 d4 17. g4 Qd6 18. Rad1 h6 19. Bc1 Bc8 20. Ng3 g6 21. Rg1 Nh7 22. Rg2 Qf6 23. Rdg1 Ng5 24. Nxg5 hxg5 25. Nf1 Nd8 26. Kh1 Be7 27. Bb3 Be6 28. Bd1 c4 29. a3 cxd3 30. Qxd3 Bc4 31. Qf3 Qxf3 32. Bxf3 dxc3 33. bxc3 Ne6 34. Rg3 Nf4 35. Ne3 Rac8 36. Kh2 Red8 37. Rd1 Rxd1 38. Nxd1 Be2 39. Bb2 Rd8 40. Bxe2 Nxe2 41. Re3 Nf4 42. Re1 Nd3 43. Re2 Nxb2 44. Nxb2 Bxa3 45. Kg2 Kf8 46. Kf1 Bxb2 47. Rxb2 Rd3 48. Ra2 Rxh3 49. Rxa6 Rxc3 50. Rb6 Rb3 51. Kg2 Rb1 52. Rb8+ Kg7 53. Rc8 Kf6 54. Rb8 b4 55. Rb6+ Ke7 56. Rb7+ Ke6 57. Rb6+ Kd7 58. Rb7+ Kc6 59. Rxf7 b3 60. Rf6+ 0-1

[Event "Antioquia-ch"]
[Site "Medellin"]
[Date "1995.??.??"]
[Round "?"]
[White "Orrego, Dorance"]
[Black "Herrera, Gabriel"]
[Result "1-0"]
[ECO "D02"]
[BlackElo "2290"]
[PlyCount "51"]
[EventDate "1995.??.??"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 c6 3. Bg2 Bg4 4. Ne5 Bh5 5. d4 Nd7 6. Nd3 e6 7. 0-0 Ngf6 8. Nd2 Bg6 9. Nf4 Bd6 10. Nxg6 hxg6 11. e4 dxe4 12. Nxe4 Nxe4 13. Bxe4 Nf6 14. Bg2 Qa5 15. c4 0-0-0 16. Bd2 Bb4 17. Be3 g5 18. a3 Be7 19. d5 exd5 20. b4 Qc7 21. Qa4 dxc4 22. b5 Nd5 23. Bxa7 cxb5 24. Qxb5 Nc3 25. Qf5+ Qd7 26. Qe5 1-0

[Event "Antioquia-ch"]
[Site "Medellin"]
[Date "1995.??.??"]
[Round "?"]
[White "Orrego, Dorance"]
[Black "Higuita, Elias"]
[Result "1-0"]
[ECO "A26"]
[PlyCount "67"]
[EventDate "1995.??.??"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. c4 d6 6. Nc3 e5 7. d3 Nc6 8. Rb1 a5 9. a3 h6 10. e4 Bg4 11. h3 Be6 12. Nd5 Kh7 13. b4 axb4 14. Nxf6+ Bxf6 15. axb4 Qd7 16. Kh2 Ne7 17. Ng1 Bg7 18. Ne2 c6 19. Bb2 d5 20. Qc2 f5 21. exf5 Nxf5 22. Ra1 Rxa1 23. Rxa1 dxc4 24. dxc4 Nd4 25. Bxd4 exd4 26. Be4 Bxh3 27. Bxg6+ Kh8 28. Rd1 Rxf2+ 29. Kg1 Qg4 30. Kxf2 Be5 31. Qe4 Qg5 32. Nf4 Bd7 33. Rxd4 Bxf4 34. Qxf4 1-0

[Event "COL-ch sf"]
[Site "Barranquilla"]
[Date "1995.??.??"]
[Round "1"]
[White "Orrego, Dorance"]
[Black "Martinez, Amaury Andres"]
[Result "0-1"]
[ECO "A07"]
[PlyCount "62"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 g6 2. g3 Bg7 3. Bg2 d5 4. 0-0 e5 5. c4 c6 6. cxd5 cxd5 7. d3 Ne7 8. Nbd2 0-0 9. e4 Nbc6 10. b3 Bg4 11. h3 Bd7 12. a4 Nb4 13. Ba3 a5 14. Ne1 Be6 15. Rc1 Nec6 16. Bb2 Qd7 17. Kh2 Rad8 18. Qe2 f5 19. exf5 gxf5 20. Ndf3 d4 21. Nd2 Rde8 22. Ba3 Bd5 23. f3 Rf6 24. Bxb4 Nxb4 25. Nc4 Bxc4 26. Rxc4 Nd5 27. Rc1 f4 28. g4 Nc3 29. Qd2 Rb6 30. Rxc3 dxc3 31. Qxc3 Qd5 0-1

[Event "Antioquia-ch"]
[Site "Medellin"]
[Date "1995.??.??"]
[Round "?"]
[White "Orrego, Dorance"]
[Black "Martinez, Mauricio"]
[Result "1-0"]
[ECO "A07"]
[PlyCount "63"]
[EventDate "1995.??.??"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 Nbd7 4. 0-0 e6 5. d3 Be7 6. Nbd2 c5 7. e4 0-0 8. e5 Ne8 9. Re1 g6 10. Nf1 Ng7 11. Bh6 Re8 12. h4 Nf5 13. Bf4 Nb6 14. N3h2 h5 15. Bh3 d4 16. Qd2 Nd5 17. Bg5 Bd7 18. Re2 Bc6 19. Rae1 Qb6 20. g4 hxg4 21. Nxg4 Qxb2 22. Bxe7 Rxe7 23. Nf6+ Kg7 24. Qg5 Nc3 25. Re4 Rh8 26. h5 Kf8 27. Bxf5 exf5 28. Rh4 gxh5 29. Rxh5 Re8 30. Rxh8+ Ke7 31. Nxe8+ Kd7 32. Qxf5+ 1-0

[Event "COL-ch sf"]
[Site "Barranquilla"]
[Date "1995.??.??"]
[Round "3"]
[White "Orrego, Dorance"]
[Black "Martinez, Mauricio"]
[Result "1-0"]
[ECO "A04"]
[PlyCount "69"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 c5 2. g3 d6 3. Bg2 Nc6 4. 0-0 Nf6 5. c4 g6 6. d4 cxd4 7. Nxd4 Bd7 8. Nf3 Bg7 9. Nc3 0-0 10. Bg5 Bg4 11. Rc1 Bxf3 12. exf3 Ne5 13. b3 Nfd7 14. Be3 Nc6 15. Qd2 Qa5 16. Rfe1 Nc5 17. f4 Rfe8 18. Red1 Rad8 19. Nd5 Qxd2 20. Rxd2 e6 21. Nc7 Re7 22. Nb5 Red7 23. Rcd1 a6 24. Bxc5 axb5 25. cxb5 Nb8 26. Rxd6 Rxd6 27. Rxd6 Rc8 28. Ba7 Bf8 29. Rd1 Be7 30. a4 h5 31. a5 Kf8 32. Bxb7 Rc7 33. a6 Rd7 34. Rc1 Bd8 35. Bxb8 1-0

[Event "COL-ch sf"]
[Site "Barranquilla"]
[Date "1995.??.??"]
[Round "9"]
[White "Orrego, Dorance"]
[Black "Raad, Salvador"]
[Result "1-0"]
[ECO "A07"]
[PlyCount "97"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 d5 5. d3 0-0 6. Nbd2 Re8 7. e4 dxe4 8. dxe4 e5 9. Qe2 Nc6 10. c3 Qe7 11. b4 a6 12. a4 Bd7 13. Rd1 Qd8 14. Nb3 b6 15. Bb2 h6 16. b5 Na5 17. Nxa5 bxa5 18. c4 Nh7 19. Qd2 Nf8 20. Ba3 Bg4 21. Qxa5 Qf6 22. Qc3 Ne6 23. Rd3 Nd4 24. Nxd4 exd4 25. Qc2 Rad8 26. h3 Bc8 27. c5 axb5 28. axb5 Qg5 29. f4 Qe7 30. Rad1 Be6 31. Bb2 Ra8 32. Bxd4 Ra2 33. Qc3 Bxd4+ 34. Rxd4 Rea8 35. R4d2 R2a3 36. Qd4 Rxg3 37. b6 cxb6 38. cxb6 Qb7 39. Qf6 Qxb6+ 40. Kh2 Rxg2+ 41. Rxg2 Qe3 42. f5 Qf4+ 43. Kh1 Qf3 44. Rd8+ Rxd8 45. Qxd8+ Kh7 46. Qc7 Qxh3+ 47. Kg1 Qe3+ 48. Kh2 gxf5 49. Qe5 1-0

[Event "COL-ch sf"]
[Site "Barranquilla"]
[Date "1995.??.??"]
[Round "11"]
[White "Orrego, Dorance"]
[Black "Renteria, Annio"]
[Result "1-0"]
[ECO "E60"]
[PlyCount "81"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 c5 3. Bg2 Nc6 4. 0-0 g6 5. c4 Bg7 6. d4 cxd4 7. Nxd4 0-0 8. Nf3 Qc7 9. Nc3 d6 10. Be3 Na5 11. b3 d5 12. Bf4 Qd8 13. cxd5 Bf5 14. Nd4 Rc8 15. Rc1 a6 16. Nxf5 gxf5 17. Qd3 Qd7 18. Na4 Qb5 19. Rxc8 Rxc8 20. Bd2 Nc4 21. Nc3 Nb2 22. Qb1 Qd7 23. Qxb2 Ne4 24. Bxe4 fxe4 25. Rc1 b5 26. b4 Qf5 27. Qb1 Rc4 28. Nd1 Qxd5 29. Rxc4 bxc4 30. Qc2 h5 31. Ne3 Qd4 32. Nxc4 h4 33. Be3 Qd5 34. Nd2 hxg3 35. hxg3 e6 36. Qc8+ Kh7 37. Qxa6 f5 38. Qc4 Qd7 39. b5 e5 40. b6 Bh6 41. Qc7 1-0

[Event "Antioquia-ch"]
[Site "Medellin"]
[Date "1995.??.??"]
[Round "?"]
[White "Orrego, Dorance"]
[Black "Rios Parra, Mauricio Flores"]
[Result "1-0"]
[ECO "D78"]
[PlyCount "103"]
[EventDate "1995.??.??"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. c4 c6 6. d4 d5 7. b3 Nbd7 8. Bb2 a5 9. Nbd2 a4 10. Qc2 b5 11. e4 bxc4 12. bxc4 Nb6 13. exd5 cxd5 14. c5 Bf5 15. Qc3 Nbd7 16. Rfe1 Ne4 17. Nxe4 Bxe4 18. Rac1 Bh6 19. Rcd1 Nf6 20. Bc1 Bg7 21. Ba3 Qc7 22. Nd2 Bxg2 23. Kxg2 Rfe8 24. Rb1 g5 25. Rb5 Ra6 26. Bc1 g4 27. Qd3 Nd7 28. Qf5 Bxd4 29. Qxd5 Bg7 30. Rb7 Nf6 31. Qxf7+ Kxf7 32. Rxc7 Re6 33. Rxe6 Kxe6 34. Ra7 Rc8 35. Ba3 Bh6 36. f4 gxf3+ 37. Nxf3 Be3 38. Rxa4 Bxc5 39. Rc4 Kd5 40. Rxc5+ Rxc5 41. Bxc5 Kxc5 42. Kf2 Ne4+ 43. Ke3 Nc3 44. a3 Nb5 45. a4 Nc3 46. a5 Nd5+ 47. Ke4 Nc7 48. g4 Kb5 49. Ng5 Kxa5 50. Nxh7 Kb5 51. Ke5 Kc6 52. Nf8 1-0

[Event "COL-ch sf"]
[Site "Barranquilla"]
[Date "1995.??.??"]
[Round "6"]
[White "Orrego, Dorance"]
[Black "Zabala, Fidel"]
[Result "0-1"]
[ECO "B56"]
[PlyCount "88"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 Ng4 7. Nxc6 bxc6 8. Qd2 Nxe3 9. Qxe3 Qb6 10. Qxb6 axb6 11. 0-0-0 g6 12. Kb1 Be6 13. a3 Bg7 14. Ne2 Ra4 15. f3 b5 16. c3 0-0 17. Nd4 Bd7 18. Be2 Rb8 19. Kc2 c5 20. Nb3 b4 21. axb4 cxb4 22. Ra1 bxc3 23. bxc3 Rc8 24. Rxa4 Bxa4 25. Ra1 Rxc3+ 26. Kd2 Rc2+ 27. Kxc2 Bxa1 28. Bc4 Be5 29. h3 e6 30. Kd3 Kf8 31. Nd4 Ke7 32. Bb5 Bxb5+ 33. Nxb5 Kf6 34. Ke3 Kg5 35. h4+ Kxh4 36. f4 Bb2 37. Nxd6 Kg3 38. Nxf7 Bc1+ 39. Ke2 Kxf4 40. Nd8 e5 41. Ne6+ Kxe4 42. Nf8 Ba3 43. Nxh7 Be7 44. g4 g5 0-1

[Event "COL-ch sf"]
[Site "Barranquilla"]
[Date "1995.??.??"]
[Round "8"]
[White "Renteria, Rolando"]
[Black "Orrego, Dorance"]
[Result "0-1"]
[ECO "B12"]
[PlyCount "38"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. f4 e6 5. Nf3 c5 6. c3 Qb6 7. Bd3 Nh6 8. 0-0 Nc6 9. Kh1 Rc8 10. Na3 cxd4 11. cxd4 Be7 12. Rb1 0-0 13. Nc2 Rc7 14. h3 Rfc8 15. g4 Bxd3 16. Qxd3 Nxe5 17. Nxe5 Rxc2 18. f5 f6 19. Nd7 Qd6 0-1

[Event "Antioquia-ch"]
[Site "Medellin"]
[Date "1995.??.??"]
[Round "?"]
[White "Rios Parra, Alejandro"]
[Black "Orrego, Dorance"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2325"]
[PlyCount "62"]
[EventDate "1995.??.??"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 Nf6 5. f3 0-0 6. Qd2 c6 7. 0-0-0 Qa5 8. Kb1 Re8 9. g4 Nbd7 10. h4 Nf8 11. h5 b5 12. hxg6 fxg6 13. Bh6 Be6 14. Bxg7 Kxg7 15. b3 Bg8 16. Bd3 e5 17. Nge2 Re7 18. Qh6+ Kf7 19. dxe5 dxe5 20. g5 N6d7 21. f4 exf4 22. Rhf1 Ke8 23. e5 b4 24. Ne4 Qxe5 25. Nxf4 Kd8 26. Nf6 Bd5 27. N4xd5 cxd5 28. Nxd5 Qxd5 29. Bc4 Qxd1+ 30. Rxd1 Kc7 31. Qh2+ Ne5 1-0

[Event "Antioquia-ch"]
[Site "Medellin"]
[Date "1995.??.??"]
[Round "?"]
[White "Rios Parra, Juan Fernando"]
[Black "Orrego, Dorance"]
[Result "0-1"]
[ECO "B00"]
[PlyCount "86"]
[EventDate "1995.??.??"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 a6 2. d4 b5 3. a4 Bb7 4. Bd3 e6 5. Nf3 c5 6. axb5 axb5 7. Rxa8 Bxa8 8. dxc5 Bxc5 9. 0-0 b4 10. Nbd2 Nf6 11. Nb3 Be7 12. Re1 0-0 13. Bg5 h6 14. Bh4 d6 15. Nbd2 Qc7 16. h3 Rd8 17. Qe2 Nbd7 18. Bg3 e5 19. Nh4 g6 20. Bc4 Kg7 21. b3 Nc5 22. f3 Bc6 23. Nf1 Ra8 24. Ne3 Ra2 25. Qd2 Bf8 26. Bf2 Qb8 27. g4 Bd7 28. Nd5 Nxd5 29. Bxd5 Be7 30. Ng2 Ne6 31. Be3 Ng5 32. Kf2 Nxh3+ 33. Kg3 Ng5 34. f4 exf4+ 35. Nxf4 Qc8 36. Bd4+ f6 37. Bc4 Bxg4 38. Nd5 Bh5 39. Qf4 Qh3+ 40. Kf2 Rxc2+ 41. Be2 Qf3+ 42. Qxf3 Nxf3 43. Nxb4 Nxe1 0-1

[Event "COL-ch sf"]
[Site "Barranquilla"]
[Date "1995.??.??"]
[Round "5"]
[White "Valle, Efrain"]
[Black "Orrego, Dorance"]
[Result "1-0"]
[ECO "A00"]
[PlyCount "95"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nc3 d5 2. e4 dxe4 3. Nxe4 Nd7 4. Bc4 Ne5 5. Bb3 Bg4 6. f3 Bc8 7. d4 Ng6 8. Bg5 h6 9. Be3 e6 10. Qd2 Be7 11. 0-0-0 c6 12. c4 Nf6 13. Ne2 a6 14. Bc2 b6 15. Nxf6+ Bxf6 16. Bxg6 fxg6 17. Qc2 Kf7 18. Nf4 g5 19. Ng6 Re8 20. Ne5+ Bxe5 21. dxe5 Qc7 22. Rd6 Rd8 23. Rhd1 Rxd6 24. Rxd6 Bd7 25. Bxb6 Qxb6 26. Rxd7+ Kg8 27. c5 Qb4 28. Rd2 Rb8 29. a3 Qf4 30. Qe4 Qxh2 31. Qxc6 Qh1+ 32. Kc2 Qa1 33. Qxe6+ Kh8 34. b4 Qxa3 35. Qb3 Qa1 36. Qc3 Qa4+ 37. Kc1 Rxb4 38. Rd8+ Kh7 39. Qd3+ g6 40. Qd7+ Qxd7 41. Rxd7+ Kg8 42. Kd2 Rc4 43. Rc7 g4 44. Kd3 gxf3 45. gxf3 Rc1 46. Kd4 h5 47. e6 h4 48. Rc8+ 1-0

[Event "Antioquia-ch"]
[Site "Medellin"]
[Date "1995.??.??"]
[Round "?"]
[White "Zapata Cuartas, Juan Carlos"]
[Black "Orrego, Dorance"]
[Result "1/2-1/2"]
[ECO "B06"]
[PlyCount "24"]
[EventDate "1995.??.??"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "COL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Be3 Nf6 4. Nc3 d5 5. exd5 Nxd5 6. Nxd5 Qxd5 7. Nf3 0-0 8. Be2 Nc6 9. c4 Qd6 10. d5 Ne5 11. Qd2 c6 12. 0-0-0 Qf6 1/2-1/2

