[Event "COL-ch Amateur U1700"]
[Site "Paipa"]
[Date "2020.03.01"]
[Round "9"]
[White "Siaucho, Pastor Emilio"]
[Black "Nino Cotrina, Edison"]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "1651"]
[BlackElo "1597"]
[PlyCount "98"]
[EventDate "2020.02.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 Bf5 4. b4 e6 5. a3 Nbd7 6. Bb2 Be7 7. 0-0 0-0 8. c4 c6 9. c5 Re8 10. Nc3 Ne4 11. d3 Nxc3 12. Bxc3 h5 13. Nd4 Bg6 14. e4 e5 15. Nf5 Bxf5 16. exf5 d4 17. Bb2 Nf6 18. f4 exf4 19. Rxf4 Nd5 20. Bxd5 Qxd5 21. Qxh5 Bf6 22. Raf1 Re3 23. Qd1 Rae8 24. R4f2 Bg5 25. Bc1 f6 26. Rg2 R3e5 27. Bxg5 fxg5 28. Qh5 Rf8 29. f6 Rf7 30. Rgf2 Rxf6 31. Rxf6 gxf6 32. Qg6+ Kh8 33. Qxf6+ Kh7 34. Qf7+ Qxf7 35. Rxf7+ Kg6 36. Rd7 Re1+ 37. Kf2 Ra1 38. Rxd4 Rxa3 39. Kf3 a5 40. bxa5 Rxa5 41. Rc4 Ra3 42. Ke4 Ra2 43. h4 gxh4 44. gxh4 Re2+ 45. Kf3 Re1 46. Rb4 Re7 47. Kg4 Rd7 48. d4 Rh7 49. Kg3 Rg7 1-0

[Event "COL-ch Amateur U1700"]
[Site "Paipa"]
[Date "2020.02.28"]
[Round "4"]
[White "Acero Vargas, Cristian Camilo"]
[Black "Nino Cotrina, Edison"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1689"]
[BlackElo "1597"]
[PlyCount "81"]
[EventDate "2020.02.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 c5 4. c3 Qb6 5. Qb3 c4 6. Qc2 Nc6 7. Nd2 Bg4 8. Be2 e6 9. e4 Bxe2 10. Nxe2 Be7 11. 0-0 Nxe4 12. Nxe4 dxe4 13. Qxe4 0-0 14. Rfe1 Na5 15. Rab1 Rad8 16. Qf3 Rfe8 17. Qg3 Bd6 18. Bxd6 Qxd6 19. Qxd6 Rxd6 20. Ng3 f6 21. Re2 b5 22. Rbe1 Kf7 23. f4 Nc6 24. Ne4 Rd5 25. Nc5 Nd8 26. a4 b4 27. a5 h6 28. h4 bxc3 29. bxc3 g5 30. hxg5 hxg5 31. g3 gxf4 32. gxf4 Rf5 33. Re4 e5 34. Kf2 Nc6 35. Nb7 Ke6 36. Rd1 Ne7 37. dxe5 fxe5 38. Nd6 Rd8 39. Nxf5 Rxd1 40. Rxe5+ Kf6 41. Nxe7 1-0

[Event "COL-ch Amateur U1700"]
[Site "Paipa"]
[Date "2020.02.28"]
[Round "5"]
[White "Nino Cotrina, Edison"]
[Black "Flores Osorio, Hernan"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "1597"]
[PlyCount "78"]
[EventDate "2020.02.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nf6 5. Ne2 Bd6 6. 0-0 0-0 7. Bg5 Bg4 8. f3 Bh5 9. c4 dxc4 10. Bxc4 c6 11. Qd2 Nbd7 12. Bf4 Nb6 13. Bb3 Be7 14. Nbc3 Nfd5 15. Nxd5 Nxd5 16. Bxd5 Qxd5 17. Nc3 Qd7 18. Rad1 Rad8 19. d5 cxd5 20. Nxd5 Bc5+ 21. Kh1 Kh8 22. Bc7 Rc8 23. b4 Bd6 24. Bxd6 Qxd6 25. Nf4 Qxd2 26. Rxd2 Bg6 27. Rfd1 Bc2 28. Rc1 Ba4 29. Rxc8 Rxc8 30. g3 g6 31. Ne2 a6 32. Kg2 Kg7 33. Kf2 h6 34. Ke3 Rc4 35. a3 Bb5 36. Rd6 Rc7 37. Nd4 Be8 38. Kd2 Kf8 39. Nb3 Rd7 1/2-1/2

[Event "COL-ch Amateur U1700"]
[Site "Paipa"]
[Date "2020.02.27"]
[Round "2"]
[White "Molano Vanegas, Ibeth"]
[Black "Nino Cotrina, Edison"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "1185"]
[BlackElo "1597"]
[PlyCount "104"]
[EventDate "2020.02.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. Nc3 Bb4 4. a3 Ba5 5. Bd3 Nf6 6. 0-0 Bxc3 7. Bb5+ c6 8. Bd3 dxe4 9. bxc3 exd3 10. Nd4 c5 11. Nb3 c4 12. Nc5 Qd6 13. Na4 b5 14. Nb2 Bb7 15. Re1 Qd5 16. Qf3 Qxf3 17. gxf3 dxc2 18. Re5 Nbd7 19. Rxb5 Bxf3 20. Nxc4 0-0 21. Rb2 Bd1 22. d3 Rab8 23. Rba2 Rb1 24. Be3 Rfb8 25. Nd2 Rxa1 26. Rxa1 Rb2 27. Kf1 Nd5 28. Ke1 Nxe3 29. fxe3 Ne5 30. d4 Nf3+ 31. Nxf3 Bxf3 32. Rc1 Rb1 33. Kd2 Be4 34. c4 Kf8 35. d5 exd5 36. cxd5 Ke7 37. a4 Kd6 38. Rxc2 Bxc2 39. Kxc2 Rh1 40. Kb3 Rxh2 41. e4 Re2 42. a5 Rxe4 43. Kc3 f5 44. Kd3 Re5 45. Kc4 Rxd5 46. a6 f4 47. Kc3 f3 48. Kb4 f2 49. Ka4 f1Q 50. Kb4 Rc5 51. Ka4 Qb1 52. Ka3 Ra5# 0-1

[Event "COL-ch Amateur U1700"]
[Site "Paipa"]
[Date "2020.02.27"]
[Round "3"]
[White "Nino Cotrina, Edison"]
[Black "Rubio Rianes, Bernardino"]
[Result "1-0"]
[ECO "C70"]
[WhiteElo "1597"]
[BlackElo "1414"]
[PlyCount "109"]
[EventDate "2020.02.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bc5 5. c3 b5 6. Bb3 d6 7. h3 Nf6 8. d4 exd4 9. cxd4 Bb4+ 10. Bd2 Bxd2+ 11. Nbxd2 0-0 12. 0-0 Bb7 13. Re1 h6 14. a4 bxa4 15. Rxa4 a5 16. e5 dxe5 17. dxe5 Nd5 18. Ne4 Ndb4 19. Qxd8 Rfxd8 20. Nc5 Bc8 21. e6 fxe6 22. Nxe6 Bxe6 23. Rxe6 Kf8 24. Nh4 g5 25. Nf5 Nd4 26. Nxd4 Rxd4 27. Rxh6 Kg7 28. Re6 c5 29. Re5 Rd2 30. Rxg5+ Kf6 31. Rxc5 Rxb2 32. Bc4 Rd8 33. Raxa5 Rd1+ 34. Kh2 Rxf2 35. Rab5 Nc2 36. Rb6+ Ke7 37. Rc7+ Rd7 38. Rxd7+ Kxd7 39. Rb2 Rxg2+ 40. Kxg2 Ne3+ 41. Kg3 Nxc4 42. Rb5 Ke6 43. Kf4 Kf6 44. Rc5 Nb2 45. Rc6+ Kg7 46. Kg5 Nd3 47. Rc7+ Kg8 48. h4 Ne5 49. h5 Nf7+ 50. Kf6 Nd6 51. Re7 Kh8 52. h6 Kg8 53. Kg6 Kf8 54. Ra7 Nc4 55. Ra8+ 1-0

[Event "COL-ch Amateur U1700"]
[Site "Paipa"]
[Date "2020.02.26"]
[Round "1"]
[White "Nino Cotrina, Edison"]
[Black "Naranjo Torres, Miguel Andres"]
[Result "1-0"]
[ECO "B92"]
[WhiteElo "1597"]
[BlackElo "1684"]
[PlyCount "87"]
[EventDate "2020.02.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nf3 Be7 8. Bg5 Nbd7 9. Bc4 0-0 10. 0-0 b5 11. Bxf6 Nxf6 12. Bd5 Rb8 13. a3 Bg4 14. h3 Bd7 15. Re1 a5 16. Qd2 b4 17. axb4 axb4 18. Ne2 Nxd5 19. Qxd5 Qc7 20. Rec1 Be6 21. Qd2 h6 22. Ra4 Qb7 23. Ng3 Rfc8 24. Rca1 Rc7 25. Ra7 Qc8 26. Ne1 Bf8 27. Rxc7 Qxc7 28. Nd3 d5 29. exd5 Bxd5 30. Nxb4 Rxb4 31. Qxd5 Rxb2 32. Ra8 Rxc2 33. Re8 Rc5 34. Qa8 Rc1+ 35. Kh2 Qc5 36. Nf5 g6 37. Ne7+ Kg7 38. Rxf8 Qxe7 39. Rg8+ Kf6 40. Qf3+ Ke6 41. Ra8 Qc7 42. Ra6+ Ke7 43. Qf6+ Kd7 44. Qxf7+ 1-0

[Event "Tunja Boyaca op-B"]
[Site "Tunja"]
[Date "2019.08.03"]
[Round "6"]
[White "Nino Cotrina, Edison"]
[Black "Rodriguez, Hector Manuel"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "1653"]
[BlackElo "1939"]
[PlyCount "30"]
[EventDate "2019.07.31"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Qc7 7. Bg5 Qe5 8. Nf3 Qa5 9. Bxf6 gxf6 10. Nd4 Bh6 11. Nb3 Qe5 12. Qd5 e6 13. Qxe5 fxe5 14. a3 b5 15. Rd1 Bb7 0-1

[Event "Tunja Boyaca op-B"]
[Site "Tunja"]
[Date "2019.08.02"]
[Round "4"]
[White "Nino Cotrina, Edison"]
[Black "Corredor, Oscar Julian"]
[Result "1-0"]
[ECO "B48"]
[WhiteElo "1653"]
[BlackElo "1318"]
[PlyCount "91"]
[EventDate "2019.07.31"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Nc6 6. a3 Qc7 7. Be2 Nf6 8. Be3 Be7 9. Nf3 0-0 10. h3 b5 11. Qd2 Bb7 12. 0-0 Rfe8 13. Rad1 Rac8 14. Qc1 Na5 15. Bf4 d6 16. e5 Bxf3 17. exf6 Bxf6 18. Bxf3 Nc4 19. b3 Ne5 20. Bxe5 Bxe5 21. Na2 Qxc2 22. Qxc2 Rxc2 23. Nb4 Rc3 24. Rd3 Rec8 25. Rfd1 d5 26. Nxa6 Rxd3 27. Rxd3 Ra8 28. Nb4 Rxa3 29. Nc2 Ra2 30. Ne3 g6 31. g3 f5 32. Kg2 Rb2 33. Nd1 Rb1 34. Re3 Bc7 35. Rxe6 Rxb3 36. Bxd5 Rd3 37. Ne3 Kf8 38. Rc6 Bd8 39. Rc2 b4 40. h4 Bf6 41. Bc4 Ra3 42. Nd5 b3 43. Bxb3 Rxb3 44. Nxf6 Kg7 45. Nd5 Rb7 46. Rc7+ 1-0

[Event "Tunja Boyaca op-B"]
[Site "Tunja"]
[Date "2019.08.01"]
[Round "2"]
[White "Nino Cotrina, Edison"]
[Black "Ramirez Beltran, Francisco Javier"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1653"]
[BlackElo "1917"]
[PlyCount "100"]
[EventDate "2019.07.31"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Bg5 Be7 6. Bd3 0-0 7. h3 Re8 8. 0-0 Nc6 9. c3 Be6 10. Nbd2 a6 11. Qc2 h6 12. Bf4 Bd6 13. Ne5 Bxe5 14. dxe5 Nd7 15. Nf3 g5 16. Bg3 Qe7 17. Rfe1 Nc5 18. Bf5 Qd7 19. Bxe6 Qxe6 20. Nd4 Qg6 21. Qxg6+ fxg6 22. f3 Nxd4 23. cxd4 Ne6 24. Red1 Kf7 25. Rac1 Rec8 26. Rc2 Ke7 27. Kf2 Kd7 28. Rdc1 Nxd4 29. Rd2 c5 30. Ke1 Ke6 31. Rcd1 Rd8 32. Bf2 Rac8 33. Bxd4 cxd4 34. Rxd4 Rc2 35. R1d2 Rxd2 36. Kxd2 Kxe5 37. Rb4 b5 38. Rb3 Kf4 39. Rc3 Rd6 40. Ke2 d4 41. Rd3 Kg3 42. Kf1 a5 43. b3 b4 44. Rd2 d3 45. Ke1 h5 46. Kd1 h4 47. Ke1 Rd5 48. Kd1 Kf4 49. Rf2 Ke3 50. Rf1 d2 0-1

