[Event "COL-chD"]
[Site "Bogota"]
[Date "2019.08.31"]
[Round "5"]
[White "Gonzalez Mojica, Renan Arturo"]
[Black "De la Rosa, Eugenio"]
[Result "1-0"]
[ECO "B20"]
[WhiteElo "1298"]
[BlackElo "1560"]
[PlyCount "81"]
[EventDate "2019.08.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. c4 g6 2. g3 c5 3. e4 Nc6 4. Bg2 Bg7 5. Ne2 Nf6 6. d3 Qb6 7. 0-0 d6 8. h3 0-0 9. Nbc3 Ne8 10. Nd5 Qd8 11. Rb1 e6 12. Ndc3 Nc7 13. Be3 Rb8 14. Qd2 f5 15. exf5 Rxf5 16. Be4 Rf7 17. Bh6 d5 18. cxd5 exd5 19. Bg2 Ne5 20. Bxg7 Kxg7 21. f4 Nc6 22. d4 Bf5 23. Rbe1 c4 24. g4 Bd3 25. b3 b5 26. Rf2 b4 27. bxc4 Bxc4 28. Na4 b3 29. axb3 Rxb3 30. Nc5 Rb6 31. Nc3 Qf6 32. Rd1 Re7 33. Bf1 Bxf1 34. Rfxf1 Rb4 35. Ne2 Nb5 36. f5 Ncxd4 37. Nxd4 Rxd4 38. g5 Rxd2 39. gxf6+ Kxf6 40. fxg6+ Kxg6 41. Rxd2 1-0

[Event "COL-chD"]
[Site "Bogota"]
[Date "2019.08.29"]
[Round "2"]
[White "De la Rosa, Eugenio"]
[Black "Caicedo Gomez, Javier Dario"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1560"]
[BlackElo "1266"]
[PlyCount "43"]
[EventDate "2019.08.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 c6 5. Nf3 Bg4 6. Bd2 Qc7 7. h3 Bh5 8. g4 Bg6 9. Bc4 e6 10. Bb3 Nf6 11. Qe2 Bd6 12. 0-0-0 0-0 13. Nh4 Qb6 14. Nxg6 hxg6 15. Be3 Qa6 16. Qf3 Nbd7 17. h4 b5 18. h5 Nh7 19. hxg6 fxg6 20. Bxe6+ Kh8 21. Rxh7+ Kxh7 22. Rh1+ 1-0

[Event "COL-chD"]
[Site "Bogota"]
[Date "2019.08.29"]
[Round "3"]
[White "De la Rosa, Eugenio"]
[Black "Penas Burgos, Nestor"]
[Result "1/2-1/2"]
[ECO "C44"]
[WhiteElo "1560"]
[BlackElo "1753"]
[PlyCount "64"]
[EventDate "2019.08.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. c3 d3 6. Qxd3 Qe7 7. 0-0 d6 8. Be3 Bb6 9. Bxb6 axb6 10. a3 Be6 11. Nbd2 Nf6 12. Bd5 0-0 13. Rfe1 Ng4 14. c4 Nce5 15. Nxe5 Nxe5 16. Qc3 Bc8 17. f4 Ng4 18. h3 c6 19. hxg4 Bxg4 20. Bxc6 bxc6 21. Qg3 h5 22. Nf3 f6 23. Nh2 Be6 24. Rac1 Qf7 25. Qc3 Ra4 26. b4 Qa7 27. Re3 Ra8 28. Ra1 c5 29. Rg3 Qf7 30. bxc5 bxc5 31. e5 h4 32. Rf3 Rxc4 1/2-1/2

[Event "COL-chD"]
[Site "Bogota"]
[Date "2019.08.28"]
[Round "1"]
[White "Hernandez Romero, Santiago Gabriel"]
[Black "De la Rosa, Eugenio"]
[Result "1-0"]
[ECO "A49"]
[BlackElo "1560"]
[PlyCount "101"]
[EventDate "2019.08.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. Nf3 g6 2. d4 Bg7 3. e4 d6 4. Nc3 Nf6 5. g3 c6 6. Bg2 Nbd7 7. 0-0 0-0 8. Re1 Re8 9. e5 Nd5 10. Nxd5 cxd5 11. e6 Nf6 12. exf7+ Kxf7 13. Bg5 Qb6 14. b3 Bg4 15. h3 Bf5 16. g4 Be4 17. c3 h6 18. Bf4 Rac8 19. Rc1 Qa5 20. a4 Rxc3 21. Bd2 Rxc1 22. Qxc1 Qb6 23. Qc3 Qc6 24. Qxc6 bxc6 25. Rc1 Rc8 26. b4 Bd3 27. Ne1 Bc4 28. f3 Nd7 29. a5 Bxd4+ 30. Kh2 g5 31. h4 Bf6 32. hxg5 hxg5 33. Kg1 Rh8 34. Bf1 Bd4+ 35. Kg2 Ne5 36. Bxg5 Bxf1+ 37. Kxf1 Nc4 38. Kg2 Be3 39. Bxe3 Nxe3+ 40. Kf2 Nc4 41. Kg2 Rb8 42. Nd3 e5 43. Re1 Re8 44. f4 e4 45. Nf2 Rb8 46. Rb1 Nxa5 47. Ra1 Nc4 48. Rxa7+ Ke6 49. f5+ Kf6 50. Kg3 Rxb4 51. Kf4 1-0

[Event "COL-ch"]
[Site "Bogota"]
[Date "2018.11.12"]
[Round "9"]
[White "De la Rosa, Eugenio"]
[Black "Florez Caceres, Rafael Omar"]
[Result "1/2-1/2"]
[ECO "B40"]
[WhiteElo "1728"]
[BlackElo "1514"]
[PlyCount "75"]
[EventDate "2018.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Qxd4 Nc6 5. Qa4 Qc7 6. c3 Nf6 7. Bg5 Be7 8. Nbd2 a6 9. Be2 b6 10. 0-0 Bb7 11. Rfe1 0-0 12. Rad1 h6 13. Bh4 d6 14. Nf1 b5 15. Qc2 Rac8 16. Bg3 Nh5 17. Nd4 Nxg3 18. Nxg3 Nxd4 19. Rxd4 Bf6 20. Rd2 d5 21. Nh5 Bg5 22. f4 Bxf4 23. Nxf4 Qxf4 24. exd5 exd5 25. Bf3 Rfd8 26. Red1 Qe5 27. Qb3 Rc4 28. Re2 Qc7 29. Rde1 Bc6 30. Re7 Qd6 31. Bh5 g6 32. Bf3 Bd7 33. Qd1 Be6 34. R7xe6 fxe6 35. Qd3 e5 36. Bxd5+ Qxd5 37. Qxg6+ Kh8 38. Qxh6+ 1/2-1/2

[Event "COL-ch"]
[Site "Bogota"]
[Date "2018.11.11"]
[Round "8"]
[White "Cardona, Jaiber Camilo"]
[Black "De la Rosa, Eugenio"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1499"]
[BlackElo "1728"]
[PlyCount "57"]
[EventDate "2018.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. g3 c6 5. Bg2 Bf5 6. d3 e6 7. Nf3 Nf6 8. 0-0 Qc7 9. Re1 Be7 10. Bf4 Qa5 11. Re5 Qd8 12. Qe2 Nbd7 13. Rxf5 exf5 14. Bd6 Nb6 15. Bc5 Nc8 16. Re1 b6 17. Bxe7 Qxe7 18. Ne5 0-0 19. Nxc6 Qd7 20. Ne7+ Nxe7 21. Bxa8 Ng6 22. Bg2 f4 23. Qf3 fxg3 24. hxg3 Rb8 25. Ne4 Nd5 26. Nc5 bxc5 27. Qxd5 Qxd5 28. Bxd5 Rxb2 29. Bb3 1-0

[Event "COL-ch"]
[Site "Bogota"]
[Date "2018.11.10"]
[Round "7"]
[White "De la Rosa, Eugenio"]
[Black "Ruiz Orozco, Neider Santiago"]
[Result "0-1"]
[ECO "E24"]
[WhiteElo "1728"]
[BlackElo "1250"]
[PlyCount "100"]
[EventDate "2018.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 b6 6. a4 0-0 7. Bg5 d5 8. e3 Ba6 9. Qb3 Nc6 10. cxd5 Bxf1 11. Kxf1 Qxd5 12. Qb5 Ne4 13. Qxd5 exd5 14. Bf4 Nxc3 15. Rc1 Nxa4 16. Rxc6 b5 17. Rxc7 b4 18. Nf3 Rfc8 19. Ke2 Rxc7 20. Bxc7 b3 21. Nd2 b2 22. Kd3 Rc8 23. Nb3 Rxc7 24. Nc5 Nxc5+ 25. dxc5 Rxc5 26. Rb1 Rb5 27. f3 a5 28. Kc3 f5 29. Rxb2 Rxb2 30. Kxb2 Kf7 31. Kb3 g5 32. Ka4 Ke6 33. Kxa5 Ke5 34. Kb4 f4 35. exf4+ gxf4 36. Kc3 h5 37. Kd3 h4 38. Ke2 Kd4 39. Kd2 Kc4 40. Ke2 Kc3 41. Kf2 d4 42. g3 hxg3+ 43. hxg3 fxg3+ 44. Kxg3 d3 45. f4 d2 46. Kg4 d1Q+ 47. Kg5 Qg1+ 48. Kf6 Kd3 49. f5 Ke4 50. Ke6 Qb6+ 0-1

[Event "COL-ch"]
[Site "Bogota"]
[Date "2018.11.09"]
[Round "6"]
[White "Aldana, Pedro Jose"]
[Black "De la Rosa, Eugenio"]
[Result "1/2-1/2"]
[ECO "E61"]
[WhiteElo "1865"]
[BlackElo "1728"]
[PlyCount "31"]
[EventDate "2018.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d6 4. d4 Bg7 5. Bf4 Nbd7 6. e3 Nh5 7. Bg3 Nxg3 8. hxg3 e5 9. Be2 b6 10. Rc1 Bb7 11. b4 a5 12. b5 h5 13. a4 exd4 14. exd4 0-0 15. 0-0 Re8 16. Qb3 1/2-1/2

[Event "COL-ch"]
[Site "Bogota"]
[Date "2018.11.09"]
[Round "5"]
[White "Paladines Pinzon, Samuel"]
[Black "De la Rosa, Eugenio"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "1118"]
[BlackElo "1728"]
[PlyCount "97"]
[EventDate "2018.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Nf3 c6 6. Be2 Bf5 7. 0-0 e6 8. Be3 Be7 9. Re1 h6 10. Qd2 0-0 11. Bf4 Qb4 12. a3 Qxb2 13. Reb1 Qxc2 14. Qxc2 Bxc2 15. Rxb7 Re8 16. Bxb8 Raxb8 17. Rxa7 Nd5 18. Nxd5 cxd5 19. a4 Bf6 20. Bb5 Rec8 21. Ne5 Bg6 22. Nd7 Bxd4 23. Nxb8 Bxa1 24. Nc6 Kf8 25. Kf1 d4 26. Ke2 d3+ 27. Kd2 e5 28. Rb7 Be4 29. Rb8 Rxb8 30. Nxb8 Bd4 31. f3 Bb7 32. Kxd3 Ke7 33. Nc6+ Bxc6 34. Bxc6 Kd6 35. Bb5 Bg1 36. h3 f5 37. g4 fxg4 38. hxg4 Ke6 39. Ke4 Kf6 40. a5 Bd4 41. Bd7 Ba7 42. a6 g6 43. Bc8 Bb8 44. Bd7 h5 45. gxh5 gxh5 46. Bh3 Kg5 47. a7 Bxa7 48. Kxe5 Kh4 49. Bf1 1/2-1/2

[Event "COL-ch"]
[Site "Bogota"]
[Date "2018.11.08"]
[Round "4"]
[White "De la Rosa, Eugenio"]
[Black "Martinez Gomez, Cesar Augusto"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1728"]
[BlackElo "1600"]
[PlyCount "103"]
[EventDate "2018.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. c3 h6 6. 0-0 d6 7. cxd4 Bb6 8. Re1 Bg4 9. Be3 Nf6 10. d5 Bxf3 11. Qxf3 Ne5 12. Qe2 0-0 13. Bxb6 axb6 14. Bb3 Re8 15. Nd2 Ned7 16. Qf3 Ne5 17. Qg3 Qd7 18. Nf1 Qg4 19. Bc2 Nc4 20. Qc3 Ne5 21. Ng3 Ra5 22. b4 Raa8 23. Nf5 Kh8 24. Re3 Nh5 25. Bd1 Qg6 26. Bxh5 Qxh5 27. f4 f6 28. fxe5 dxe5 29. Qxc7 Rg8 30. Rg3 Rxa2 31. Rf1 g5 32. Rh3 Rxg2+ 33. Kxg2 Qg4+ 34. Ng3 Rg6 35. Qd8+ Kh7 36. Qe7+ Rg7 37. Qxf6 Rg6 38. Qxe5 Qc8 39. Rf7+ Kg8 40. Rc7 Qa8 41. Qc3 Qa2+ 42. Qc2 Qa1 43. Nf5 Rf6 44. Nxh6+ Kf8 45. Nf5 Rxf5 46. exf5 g4 47. Rc8+ Kg7 48. Qc7+ Kf6 49. Rf8+ Kg5 50. Rg8+ Kf6 51. Qg7+ Kxf5 52. Qxa1 1-0

[Event "COL-ch"]
[Site "Bogota"]
[Date "2018.11.07"]
[Round "3"]
[White "De la Rosa, Eugenio"]
[Black "Mora Munoz, Alejandro"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "1728"]
[BlackElo "1493"]
[PlyCount "49"]
[EventDate "2018.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. cxd5 Nxd5 6. g3 0-0 7. Bg2 Nxc3 8. bxc3 c5 9. 0-0 Nc6 10. a4 Qa5 11. Qb3 Bf6 12. Ba3 Rd8 13. e3 cxd4 14. cxd4 Bd7 15. Rfc1 Rac8 16. Rc5 Qc7 17. Rac1 b6 18. R5c2 Qb8 19. Nd2 Na5 20. Qb4 Rxc2 21. Rxc2 Rc8 22. Rxc8+ Qxc8 23. Ne4 Nc6 24. Nxf6+ gxf6 25. d5 0-1

[Event "COL-ch"]
[Site "Bogota"]
[Date "2018.11.07"]
[Round "2"]
[White "Gomez Leon, Nicolas"]
[Black "De la Rosa, Eugenio"]
[Result "1-0"]
[ECO "D03"]
[WhiteElo "1306"]
[BlackElo "1728"]
[PlyCount "75"]
[EventDate "2018.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 d5 5. e3 0-0 6. Bd3 Nbd7 7. c3 c5 8. Bc2 Qb6 9. Rb1 Re8 10. 0-0 e5 11. Ba4 Re6 12. Nb3 c4 13. Bxf6 Bxf6 14. Bxd7 Bxd7 15. Nc5 Bc8 16. Nxe6 Qxe6 17. Nxe5 Bxe5 18. dxe5 Qxe5 19. Qd4 Qg5 20. Qf4 Qd8 21. Qf3 Be6 22. Rbd1 Qb6 23. Rd2 Qa5 24. a3 Kg7 25. Rfd1 h5 26. Qf4 b5 27. Qe5+ Kg8 28. e4 dxe4 29. a4 a6 30. Qxe4 Re8 31. Qc6 Rc8 32. Qb7 Qxa4 33. Qe7 a5 34. Qf6 Re8 35. Rd8 b4 36. R1d6 bxc3 37. bxc3 Kf8 38. Rxe6 1-0

[Event "COL-ch"]
[Site "Bogota"]
[Date "2018.11.06"]
[Round "1"]
[White "De la Rosa, Eugenio"]
[Black "Gutierrez Herrera, Jose Antonio"]
[Result "0-1"]
[ECO "A56"]
[WhiteElo "1728"]
[BlackElo "2130"]
[PlyCount "100"]
[EventDate "2018.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nc3 cxd4 4. Qxd4 Nc6 5. Qd1 e6 6. Bg5 Bb4 7. Bxf6 Qxf6 8. Rc1 0-0 9. Nf3 d5 10. cxd5 exd5 11. Qxd5 Be6 12. Qg5 Qxg5 13. Nxg5 Bxa2 14. e3 Ne5 15. Bb5 Bc4 16. Bxc4 Nxc4 17. b3 Na5 18. 0-0 Nxb3 19. Rb1 Bxc3 20. Rxb3 Bf6 21. Ne4 b6 22. Rfb1 Be5 23. Rb5 Rfe8 24. Ng5 h6 25. Nh3 Rac8 26. g4 Rc5 27. R5b3 Rec8 28. Kg2 Rc1 29. g5 Rxb1 30. Rxb1 Rc2 31. gxh6 gxh6 32. Ng1 Rb2 33. Rc1 a5 34. Nf3 Bf6 35. Ne1 a4 36. Kg3 a3 37. Nd3 Rb3 38. Rc8+ Kg7 39. Nc1 Rc3 40. Rxc3 Bxc3 41. Na2 Ba5 42. Kf4 b5 43. Ke4 Be1 44. Kd3 Bxf2 45. Ke2 Bh4 46. Kd3 Be7 47. Kc2 Kg6 48. Kb3 b4 49. Nc1 Kf5 50. Kc4 Ke4 0-1

[Event "COL-ch Amateur U2000"]
[Site "Bogota"]
[Date "2017.03.03"]
[Round "2"]
[White "De la Rosa, Eugenio"]
[Black "Salcedo, Juan Carlos"]
[Result "0-1"]
[ECO "E43"]
[WhiteElo "1751"]
[BlackElo "1964"]
[PlyCount "46"]
[EventDate "2017.03.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 b6 6. Nf3 Bb7 7. e3 Ne4 8. Qc2 d6 9. Bd3 f5 10. Bxe4 Bxe4 11. Qe2 Nd7 12. 0-0 0-0 13. a4 Qf6 14. Ne1 c5 15. f3 Bb7 16. Nd3 Rac8 17. Ba3 Rfd8 18. Nf4 Re8 19. Qd3 Re7 20. d5 Ne5 21. Qe2 Ba6 22. Nxe6 Bxc4 23. Qc2 Bxf1 0-1

[Event "COL-ch Amateur U2000"]
[Site "Bogota"]
[Date "2017.03.02"]
[Round "1"]
[White "Rodriguez, Hector Manuel"]
[Black "De la Rosa, Eugenio"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1921"]
[BlackElo "1751"]
[PlyCount "53"]
[EventDate "2017.03.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Bc4 Nf6 5. d3 Bg4 6. Nge2 c6 7. h3 Bh5 8. Bd2 Nbd7 9. g4 Bg6 10. Nf4 e6 11. Qe2 Qe5 12. Be3 Bb4 13. d4 Qa5 14. Bd2 0-0-0 15. 0-0-0 Qc7 16. Nd3 Nb6 17. Nxb4 Rxd4 18. b3 Nxc4 19. bxc4 Qa5 20. Nb1 c5 21. Nc6 Qxa2 22. Nxd4 cxd4 23. Bb4 Rd8 24. Rd3 Ne4 25. Rhd1 Qxc4 26. Ba5 b6 27. Rc3 1-0

[Event "Gachantiva Boyaca Cup"]
[Site "Gachantiva"]
[Date "2016.06.06"]
[Round "5"]
[White "Cordero Esparza, Nicolas Sebastian"]
[Black "De la Rosa, Eugenio"]
[Result "1-0"]
[ECO "C55"]
[BlackElo "1727"]
[PlyCount "71"]
[EventDate "2016.06.04"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. Nc3 Bb4 6. Bd2 0-0 7. a3 Ba5 8. 0-0 d6 9. h3 a6 10. Ba2 Bb6 11. Nh2 Nd4 12. Kh1 c6 13. f4 exf4 14. Bxf4 Re8 15. Nf3 Be6 16. b3 Qd7 17. Nh2 d5 18. e5 Nh7 19. Ne2 Nf8 20. c3 Nf5 21. g4 Ne3 22. Bxe3 Bxe3 23. d4 Ng6 24. Qd3 Bg5 25. Ng3 Nf4 26. Qf3 Ng6 27. Nf5 Nh4 28. Qd3 Ng6 29. Bb1 c5 30. Nd6 c4 31. Qc2 Red8 32. b4 Be7 33. Nxf7 Bxf7 34. Rxf7 Kxf7 35. Qxg6+ Kg8 36. e6 1-0

[Event "Gachantiva Boyaca Cup"]
[Site "Gachantiva"]
[Date "2016.06.06"]
[Round "6"]
[White "De la Rosa, Eugenio"]
[Black "Castillo, Juan Alberto"]
[Result "1-0"]
[ECO "B47"]
[WhiteElo "1727"]
[PlyCount "77"]
[EventDate "2016.06.04"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. g3 Nc6 7. Bg2 Bc5 8. Nxc6 dxc6 9. Qg4 g6 10. 0-0 Bd7 11. Bf4 e5 12. Qg5 exf4 13. Qxc5 Be6 14. Nd5 Bxd5 15. exd5 0-0-0 16. dxc6 b6 17. Qc3 f6 18. Bh3+ Kb8 19. Bd7 Ne7 20. Rfe1 Nxc6 21. Bxc6 Rd6 22. Re8+ Rxe8 23. Bxe8 Qxc3 24. bxc3 f3 25. Bf7 g5 26. Re1 Kc7 27. a4 Kd7 28. h4 g4 29. Bg8 h6 30. Bc4 Rc6 31. Bxa6 Rxc3 32. Bb5+ Kd6 33. Rd1+ Ke5 34. Rd2 Rc5 35. Kf1 Rc3 36. Ke1 Ra3 37. Rd8 Ke6 38. Rb8 Rc3 39. Kd2 1-0

[Event "Gachantiva Boyaca Cup"]
[Site "Gachantiva"]
[Date "2016.06.05"]
[Round "4"]
[White "De la Rosa, Eugenio"]
[Black "Abril Guiza, Mauricio"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1727"]
[BlackElo "2013"]
[PlyCount "44"]
[EventDate "2016.06.04"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. c3 b6 4. Bf4 Bb7 5. e3 d6 6. h3 g6 7. Nbd2 Bg7 8. Bd3 0-0 9. Qc2 Nc6 10. Ne4 cxd4 11. Nxf6+ exf6 12. cxd4 Nb4 13. Qd2 Nxd3+ 14. Qxd3 a5 15. Qa3 Ba6 16. Qxd6 Qc8 17. Qc7 Qf5 18. Qc1 Rac8 19. Qb1 Rc2 20. Nd2 Rfc8 21. Qd1 Qd3 22. b3 Rc1 0-1

[Event "Gachantiva Boyaca Cup"]
[Site "Gachantiva"]
[Date "2016.06.05"]
[Round "3"]
[White "Perez Silva, Javier"]
[Black "De la Rosa, Eugenio"]
[Result "0-1"]
[ECO "C44"]
[BlackElo "1727"]
[PlyCount "24"]
[EventDate "2016.06.04"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bb4+ 5. Bd2 Nge7 6. 0-0 Bc5 7. Re1 0-0 8. c3 dxc3 9. Bxc3 d6 10. Nh4 Be6 11. Bb5 Nc8 12. Qf3 Qxh4 0-1

[Event "Gachantiva Boyaca Cup"]
[Site "Gachantiva"]
[Date "2016.06.04"]
[Round "2"]
[White "De la Rosa, Eugenio"]
[Black "Castillo, Julian Felipe"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "1727"]
[PlyCount "19"]
[EventDate "2016.06.04"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Qb6 6. Be3 Bc5 7. e5 Bxd4 8. Bxd4 Qxb2 9. Rb1 Qa3 10. exf6 1-0

[Event "COL pre olympic sf2"]
[Site "Cartagena"]
[Date "2016.05.09"]
[Round "9"]
[White "De la Rosa, Eugenio"]
[Black "Gomez Guardo, Cristian"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1611"]
[BlackElo "1927"]
[PlyCount "76"]
[EventDate "2016.05.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. e4 d6 2. Bc4 Nf6 3. Nc3 g6 4. d3 Bg7 5. Be3 a6 6. Nf3 Ng4 7. Ng5 0-0 8. Bd2 Ne5 9. Bb3 c5 10. f4 Bg4 11. Ne2 Nec6 12. Bc3 e5 13. Qd2 h6 14. Nf3 Bxf3 15. gxf3 Qh4+ 16. Kd1 b5 17. a3 a5 18. Qe1 Qxe1+ 19. Kxe1 b4 20. axb4 cxb4 21. Bd2 exf4 22. Bxf4 Bxb2 23. Ra2 Be5 24. Bxh6 Rc8 25. h4 Nd4 26. Nxd4 Bxd4 27. h5 gxh5 28. Rxh5 Rc5 29. Rd5 Rxd5 30. Bxd5 Ra7 31. Bg5 a4 32. Ke2 Nd7 33. Bc6 b3 34. cxb3 axb3 35. Rxa7 b2 36. Rxd7 b1Q 37. Bd5 Qc2+ 38. Bd2 Bc3 0-1

[Event "COL pre olympic sf2"]
[Site "Cartagena"]
[Date "2016.05.08"]
[Round "8"]
[White "Pena Bermudez, Juan Camilo"]
[Black "De la Rosa, Eugenio"]
[Result "0-1"]
[ECO "D07"]
[WhiteElo "1880"]
[BlackElo "1611"]
[PlyCount "84"]
[EventDate "2016.05.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. Nf3 Nc6 2. d4 d5 3. c4 Nf6 4. cxd5 Qxd5 5. Nc3 Qh5 6. e4 a6 7. Bf4 Qa5 8. Qd2 Bg4 9. Be2 e6 10. 0-0 0-0-0 11. Be3 Bb4 12. Ng5 Bxe2 13. Qxe2 Nxd4 14. Bxd4 Qxg5 15. Be3 Qg6 16. f3 h5 17. Rfc1 h4 18. h3 Nh7 19. Qc4 Bd6 20. f4 Qg3 21. Qe2 Bxf4 22. Bxf4 Qxf4 23. Rf1 Qg3 24. Rac1 Ng5 25. Kh1 Rd3 26. Rc2 Rhd8 27. Rfc1 Re3 28. Qf1 c6 29. b4 f6 30. b5 axb5 31. Nxb5 Kb8 32. Nc3 Rdd3 33. Ne2 Nxe4 34. Nf4 Qg5 35. Kh2 Qe5 36. Kg1 Rc3 37. Rxc3 Rxc3 38. Rd1 Qc5+ 39. Kh2 Qe5 40. Kg1 Ng3 41. Qf2 Qe3 42. Rd8+ Kc7 0-1

[Event "COL pre olympic sf2"]
[Site "Cartagena"]
[Date "2016.05.07"]
[Round "6"]
[White "Martinez Caamano, Jesus David"]
[Black "De la Rosa, Eugenio"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "1488"]
[BlackElo "1611"]
[PlyCount "25"]
[EventDate "2016.05.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. e4 d5 2. e5 Nc6 3. d4 Bf5 4. Nf3 e6 5. Bb5 a6 6. Bxc6+ bxc6 7. Nbd2 Bb4 8. c3 Be7 9. Nb3 a5 10. Be3 Qb8 11. Qc2 Qb5 12. Nc5 Bxc5 13. dxc5 0-1

[Event "COL pre olympic sf2"]
[Site "Cartagena"]
[Date "2016.05.06"]
[Round "5"]
[White "De la Rosa, Eugenio"]
[Black "Pertuz Mercado, Manuel Jose"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "1611"]
[BlackElo "1874"]
[PlyCount "70"]
[EventDate "2016.05.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7 5. Nxd4 Ne5 6. Bb3 Nf6 7. 0-0 0-0 8. f4 Ng6 9. e5 Ne8 10. Nc3 c6 11. Ne4 d5 12. Ng3 a6 13. c3 Qb6 14. Be3 Bc5 15. Kh1 Qc7 16. Bc2 Be7 17. Ndf5 f6 18. Qh5 fxe5 19. Nxe7+ Qxe7 20. fxe5 Nf6 21. exf6 Qxe3 22. fxg7 Rxf1+ 23. Rxf1 Kxg7 24. Bf5 Qe5 25. Bxc8 Rxc8 26. Qh3 Rf8 27. Qd7+ Kh8 28. Qxb7 Rxf1+ 29. Nxf1 Qe2 30. Kg1 Ne5 31. Qc8+ Kg7 32. Qf5 Nd3 33. Qd7+ Kf8 34. Qd6+ Kf7 35. Qd7+ Kf8 1/2-1/2

[Event "COL pre olympic sf2"]
[Site "Cartagena"]
[Date "2016.05.06"]
[Round "4"]
[White "Mesa, Francisco Sr"]
[Black "De la Rosa, Eugenio"]
[Result "0-1"]
[ECO "C60"]
[WhiteElo "1551"]
[BlackElo "1611"]
[PlyCount "90"]
[EventDate "2016.05.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. 0-0 g6 5. c3 Bg7 6. d4 exd4 7. cxd4 0-0 8. Nc3 d6 9. d5 Ne5 10. Nxe5 Bxe5 11. Bh6 Bg7 12. Bxg7 Kxg7 13. Ba4 a6 14. f4 b5 15. Bc2 f5 16. Qd4+ Kg8 17. e5 Bb7 18. a3 dxe5 19. fxe5 Bxd5 20. Rad1 Be6 21. Qc5 Qe8 22. Qxc7 Rf7 23. Qb6 Bc4 24. Rf4 Qc6 25. Rd8+ Rxd8 26. Qxd8+ Kg7 27. Qd4 Qe6 28. Qe3 Nc6 29. b3 Bxb3 30. Bxb3 Qxb3 31. Rh4 Re7 32. Rh3 Qxa3 33. Qd2 Qc5+ 34. Kf1 Qxe5 35. Nd1 h5 36. Re3 Qf4+ 37. Kg1 Rxe3 38. Nxe3 Qd4 39. Qf2 Qa1+ 40. Nf1 b4 41. Qd2 Qd4+ 42. Qxd4+ Nxd4 43. Kf2 Kf6 44. Ke3 Ke5 45. Nd2 Kd5 0-1

[Event "COL pre olympic sf2"]
[Site "Cartagena"]
[Date "2016.05.05"]
[Round "2"]
[White "Abril Guiza, Mauricio"]
[Black "De la Rosa, Eugenio"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1999"]
[BlackElo "1611"]
[PlyCount "77"]
[EventDate "2016.05.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Bf5 3. c4 Nf6 4. Qb3 b6 5. e3 e6 6. Nf3 Bd6 7. Ne5 0-0 8. Be2 c5 9. Nc3 dxc4 10. Qxc4 Be4 11. Nxe4 Nxe4 12. dxc5 Bxe5 13. Bxe5 Qd2+ 14. Kf1 Qd5 15. Qxd5 exd5 16. cxb6 axb6 17. Bd4 Nd7 18. Bb5 Ndc5 19. Ke2 f5 20. Bc6 Rad8 21. Rhd1 Rd6 22. Bb5 Rfd8 23. f3 Ng5 24. b4 Nce6 25. Be5 Nc7 26. Bxd6 Rxd6 27. Bc4 Kf8 28. a4 Ke7 29. Bb3 Nge6 30. a5 bxa5 31. Rxa5 d4 32. Rxf5 Rb6 33. Bxe6 Nxe6 34. b5 dxe3 35. Kxe3 g6 36. Rfd5 h5 37. h4 Rb7 38. g4 hxg4 39. fxg4 1-0

[Event "COL pre olympic sf2"]
[Site "Cartagena"]
[Date "2016.05.05"]
[Round "3"]
[White "De la Rosa, Eugenio"]
[Black "Velez Rueda, Juan Diego"]
[Result "0-1"]
[ECO "E30"]
[WhiteElo "1611"]
[BlackElo "1782"]
[PlyCount "26"]
[EventDate "2016.05.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 h6 5. Bh4 c5 6. e3 Qa5 7. Nge2 g5 8. Bg3 Ne4 9. Qb3 cxd4 10. exd4 Nc6 11. a3 Nxc3 12. bxc3 Nxd4 13. Be5 Nxb3 0-1

[Event "COL pre olympic sf2"]
[Site "Cartagena"]
[Date "2016.05.04"]
[Round "1"]
[White "De la Rosa, Eugenio"]
[Black "Otalora Pacheco, Carlos Eduardo"]
[Result "0-1"]
[ECO "D60"]
[WhiteElo "1611"]
[BlackElo "2107"]
[PlyCount "60"]
[EventDate "2016.05.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 Be7 6. Nf3 0-0 7. Bd3 h6 8. Bh4 b6 9. Qc2 Bb7 10. a3 c5 11. Bg3 Rc8 12. Qb3 a6 13. h3 b5 14. Bc2 dxc4 15. Qa2 Qb6 16. 0-0 Bxf3 17. gxf3 cxd4 18. exd4 Qxd4 19. Rad1 Qb6 20. Rd2 Nc5 21. Rfd1 Rfd8 22. Rxd8+ Rxd8 23. Rxd8+ Qxd8 24. Qb1 Qd2 25. Qd1 Qxd1+ 26. Nxd1 Nd5 27. Ne3 Nxe3 28. fxe3 Bf6 29. Bd6 Nd3 30. b3 Ne1 0-1

