[Event "COL-ch Blitz"]
[Site "Villavicencio"]
[Date "2021.11.15"]
[Round "5"]
[White "Prasca Sosa, Rafael Felipe"]
[Black "Useche Contreras, Maigel"]
[Result "1-0"]
[ECO "B96"]
[WhiteElo "2324"]
[BlackElo "1988"]
[PlyCount "73"]
[EventDate "2021.11.15"]
[EventType "swiss (blitz)"]
[EventRounds "13"]
[EventCountry "COL"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Qe2 Be7 8. f4 Nc6 9. 0-0-0 Qc7 10. Kb1 0-0 11. g3 Nxd4 12. Rxd4 e5 13. Bxf6 exd4 14. Nd5 Qd7 15. Nxe7+ Kh8 16. Nxc8 Rfxc8 17. Bxd4 b5 18. Qd2 a5 19. Bd3 b4 20. Re1 Rab8 21. f5 f6 22. g4 a4 23. g5 Qe7 24. gxf6 gxf6 25. Qh6 Rf8 26. Bc4 b3 27. cxb3 axb3 28. axb3 Ra8 29. Bd5 Rab8 30. Bc3 Rbc8 31. Be6 Rb8 32. Re3 Ra8 33. Rg3 Rab8 34. Rg6 Ra8 35. Rxf6 Rxf6 36. Bxf6+ Qxf6 37. Qxf6# 1-0

[Event "COL-ch Blitz"]
[Site "Villavicencio"]
[Date "2021.11.15"]
[Round "7"]
[White "Ruiz Aguilar, Pablo Alexander"]
[Black "Useche Contreras, Maigel"]
[Result "1-0"]
[ECO "B85"]
[WhiteElo "2147"]
[BlackElo "1988"]
[PlyCount "55"]
[EventDate "2021.11.15"]
[EventType "swiss (blitz)"]
[EventRounds "13"]
[EventCountry "COL"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Nc6 6. Be3 d6 7. Be2 Nf6 8. 0-0 Be7 9. Kh1 0-0 10. f4 Qc7 11. Qe1 b5 12. Nxc6 Qxc6 13. e5 dxe5 14. fxe5 Nd5 15. Bf3 Bb7 16. Rd1 Rad8 17. Qg3 Qc7 18. Nxd5 Bxd5 19. Bxd5 Rxd5 20. Rxd5 exd5 21. Bh6 g6 22. Bxf8 Bxf8 23. e6 Qxg3 24. exf7+ Kg7 25. hxg3 Bd6 26. g4 d4 27. g5 Be5 28. f8Q# 1-0

[Event "COL-ch Blitz"]
[Site "Villavicencio"]
[Date "2021.11.15"]
[Round "2"]
[White "Useche Contreras, Maigel"]
[Black "Herrera, Juan Sebastian"]
[Result "0-1"]
[ECO "B42"]
[WhiteElo "1988"]
[BlackElo "2327"]
[PlyCount "84"]
[EventDate "2021.11.15"]
[EventType "swiss (blitz)"]
[EventRounds "13"]
[EventCountry "COL"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nc6 6. Nxc6 dxc6 7. 0-0 e5 8. Be3 Nf6 9. h3 Bd6 10. Nc3 Qe7 11. Ne2 Bc5 12. Qc1 Be6 13. a3 0-0 14. b4 Bd6 15. c4 c5 16. bxc5 Bxc5 17. Bxc5 Qxc5 18. Rb1 Rfd8 19. Qc2 Rd7 20. Nc3 Bxc4 21. Na4 Qd4 22. Bxc4 b5 23. Bb3 bxa4 24. Bxa4 Rdd8 25. Rfd1 Qxe4 26. Qxe4 Nxe4 27. Bc6 Nc3 28. Bxa8 Rxd1+ 29. Rxd1 Nxd1 30. Bc6 Kf8 31. Kf1 Nc3 32. Ke1 Ke7 33. Kd2 Nb1+ 34. Kc2 Nxa3+ 35. Kb3 Nb5 36. Kb4 Kd6 37. Be4 g6 38. Ka5 Nc7 39. Kb6 f5 40. Bb1 e4 41. Ba2 Nd5+ 42. Kxa6 Nb4+ 0-1

[Event "COL-ch Rapid"]
[Site "Villavicencio"]
[Date "2021.11.14"]
[Round "6"]
[White "Martinez Zuluaica, Julian"]
[Black "Useche Contreras, Maigel"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2218"]
[BlackElo "1970"]
[PlyCount "115"]
[EventDate "2021.11.13"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. b4 cxb4 4. d4 e6 5. a3 bxa3 6. Bxa3 Nf6 7. Bd3 Be7 8. 0-0 0-0 9. Re1 a6 10. Nbd2 Nbd7 11. e5 dxe5 12. dxe5 Nd5 13. Ne4 Bxa3 14. Rxa3 h6 15. Nd6 Qc7 16. Qe2 Nf4 17. Qd2 Nxd3 18. Rxd3 b5 19. Nxc8 Raxc8 20. Rxd7 Qxc2 21. Qxc2 Rxc2 22. Ra7 Ra2 23. Rb1 Rc8 24. Ne1 Rc5 25. Nd3 Rcc2 26. h3 a5 27. Rxb5 Rd2 28. Rd7 Ra1+ 29. Kh2 Rad1 30. Rb3 Rxf2 31. Nc5 Rdd2 32. Rxd2 Rxd2 33. Rb7 Kf8 34. Rb5 Ra2 35. Rb8+ Ke7 36. Rb7+ Ke8 37. Ra7 Re2 38. Nb7 Rxe5 39. Nd6+ Kf8 40. Rxf7+ Kg8 41. Ra7 Rd5 42. Nb7 e5 43. Nxa5 e4 44. Nc4 Rd4 45. Ne3 Rd3 46. Nf5 Kf8 47. Nxg7 e3 48. Ne6+ Ke8 49. Ra1 Kf7 50. Nf4 Rd4 51. Ne2 Rd2 52. Re1 Kf6 53. Ng3 Rd3 54. Nf1 Kg6 55. Nxe3 h5 56. h4 Rd4 57. g3 Re4 58. Ng2 1-0

[Event "COL-ch Rapid"]
[Site "Villavicencio"]
[Date "2021.11.14"]
[Round "4"]
[White "Mosquera Klinger, Miguel Alonso"]
[Black "Useche Contreras, Maigel"]
[Result "1-0"]
[ECO "B53"]
[WhiteElo "2367"]
[BlackElo "1970"]
[PlyCount "67"]
[EventDate "2021.11.13"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 bxc6 7. c4 Qb6 8. Qd3 Nf6 9. 0-0 g6 10. e5 dxe5 11. Nxe5 Be6 12. Nc3 Rd8 13. Qf3 Rc8 14. b3 Bg7 15. Bb2 0-0 16. Na4 Qc7 17. Rad1 h5 18. h3 Nh7 19. Qe3 Rfd8 20. Nxg6 Bxb2 21. Nxb2 Nf6 22. Ne5 Kh7 23. Na4 Rg8 24. f4 Bf5 25. Nxf7 Ne4 26. Ng5+ Nxg5 27. fxg5 e6 28. Nc5 Qb6 29. Rd7+ Rg7 30. Rxg7+ Kxg7 31. Qe5+ Kg8 32. Kh1 Qc7 33. Qf6 Qf7 34. Qxf7+ 1-0

[Event "COL-ch Rapid"]
[Site "Villavicencio"]
[Date "2021.11.14"]
[Round "5"]
[White "Useche Contreras, Maigel"]
[Black "Otalora Pacheco, Carlos Eduardo"]
[Result "1/2-1/2"]
[ECO "C79"]
[WhiteElo "1970"]
[BlackElo "2230"]
[PlyCount "47"]
[EventDate "2021.11.13"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. 0-0 g6 7. Nc3 Bg7 8. Nd5 Be6 9. Ng5 b5 10. Nxe6 fxe6 11. Nxf6+ Qxf6 12. Bb3 Nd4 13. c3 Nxb3 14. Qxb3 0-0 15. Be3 Qe7 16. a4 c6 17. axb5 axb5 18. Ra3 Rxa3 19. Qxa3 Rb8 20. Ra1 Bf8 21. Qa7 Qb7 22. Qxb7 Rxb7 23. Kf1 Kf7 24. Ke2 1/2-1/2

[Event "COL-ch Rapid"]
[Site "Villavicencio"]
[Date "2021.11.13"]
[Round "2"]
[White "Herrera, Juan Sebastian"]
[Black "Useche Contreras, Maigel"]
[Result "0-1"]
[ECO "B24"]
[WhiteElo "2302"]
[BlackElo "1970"]
[PlyCount "100"]
[EventDate "2021.11.13"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 e6 4. Bg2 Nf6 5. Nge2 d6 6. d3 Be7 7. 0-0 0-0 8. h3 a6 9. f4 Qc7 10. g4 Nd4 11. Ng3 Nd7 12. f5 Ne5 13. g5 f6 14. gxf6 Bxf6 15. Nh5 Qe7 16. Ne2 Nxe2+ 17. Qxe2 Bg5 18. f6 Bxf6 19. c3 Bd7 20. a4 Bg5 21. Nf4 Rac8 22. b3 Rf6 23. Kh2 Bh6 24. Nh5 Rxf1 25. Bxf1 Bxc1 26. Rxc1 Rf8 27. Bg2 Qg5 28. Rg1 g6 29. Ng3 Qh4 30. d4 Rf2 31. Qd1 Nf3+ 32. Qxf3 Rxf3 33. Bxf3 cxd4 34. cxd4 Qf6 35. Bg4 Qxd4 36. Rf1 h5 37. Bf3 e5 38. Be2 h4 39. Bc4+ Kg7 40. Ne2 Qxe4 41. Rf7+ Kh6 42. Rxd7 b5 43. axb5 axb5 44. Bxb5 d5 45. Rd6 Qe3 46. b4 Qf2+ 47. Kh1 d4 48. Bc4 Qe1+ 49. Kg2 Qxb4 50. Bd3 Qxd6 0-1

[Event "COL-ch Rapid"]
[Site "Villavicencio"]
[Date "2021.11.13"]
[Round "3"]
[White "Useche Contreras, Maigel"]
[Black "Pardo, Alejandro"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "1970"]
[BlackElo "2259"]
[PlyCount "79"]
[EventDate "2021.11.13"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Bd3 Nc6 6. Nxc6 bxc6 7. 0-0 d5 8. e5 Nd7 9. f4 g6 10. Be3 a5 11. c4 Ba6 12. cxd5 cxd5 13. Bxa6 Rxa6 14. Qa4 Qb8 15. Nc3 Qb4 16. Rfc1 Be7 17. a3 Qxa4 18. Nxa4 0-0 19. Rc7 Rd8 20. Rac1 Kf8 21. Rb7 Ke8 22. Rcc7 Bf8 23. Nb6 Nxb6 24. Bxb6 d4 25. Kf1 d3 26. Ke1 d2+ 27. Kd1 a4 28. Rxf7 Rxb6 29. Rxf8+ Kxf8 30. Rxb6 Rd4 31. Rb4 Rd5 32. Rxa4 g5 33. g3 gxf4 34. gxf4 Kf7 35. Rc4 Kg6 36. b4 Kf5 37. a4 Kg4 38. b5 Kf3 39. b6 Ke3 40. b7 1-0

[Event "COL-chT 21st"]
[Site "Cartagena"]
[Date "2019.11.30"]
[Round "7.4"]
[White "Martinez, Jorge Alexander"]
[Black "Useche Contreras, Maigel"]
[Result "1-0"]
[ECO "B52"]
[WhiteElo "2162"]
[BlackElo "1985"]
[PlyCount "78"]
[EventDate "2019.11.30"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]
[WhiteTeam "Santander"]
[BlackTeam "Meta"]
[WhiteTeamCountry "COL"]
[BlackTeamCountry "COL"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Nxd7 5. c4 g6 6. Nc3 Bg7 7. d4 cxd4 8. Nxd4 a6 9. Be3 Ngf6 10. Rc1 Rc8 11. b3 Qa5 12. 0-0 Nc5 13. f3 0-0 14. Qd2 Rfd8 15. Bh6 Qb6 16. Bxg7 Kxg7 17. Kh1 e6 18. Rfe1 e5 19. Nc2 Ne6 20. Ne3 Nd4 21. Ned5 Nxd5 22. Nxd5 Qc6 23. Qg5 Qe8 24. Qf6+ Kg8 25. Ne7+ Kf8 26. Nxc8 Rxc8 27. Qxd6+ Kg8 28. f4 Nc6 29. fxe5 Nxe5 30. Rcd1 Nc6 31. Qf6 Rd8 32. Rxd8 Nxd8 33. Rd1 Ne6 34. e5 Qc6 35. h3 h5 36. Qe7 Qe4 37. Rf1 Nf4 38. Qd8+ Kh7 39. Qg5 Nxh3 1-0

[Event "COL-chT rapid"]
[Site "Cartagena"]
[Date "2019.11.29"]
[Round "4.4"]
[White "Basilio Santos, Eleazar"]
[Black "Useche Contreras, Maigel"]
[Result "1-0"]
[ECO "D13"]
[WhiteElo "1448"]
[BlackElo "1976"]
[PlyCount "102"]
[EventDate "2019.11.29"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]
[WhiteTeam "Sucre"]
[BlackTeam "Meta"]
[WhiteTeamCountry "COL"]
[BlackTeamCountry "COL"]

1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. Bd3 c5 5. c3 cxd4 6. cxd4 Nc6 7. Nc3 a6 8. Nf3 Bd6 9. Bg3 0-0 10. a3 b5 11. Rc1 Bb7 12. Ne2 Rc8 13. 0-0 Bxg3 14. Nxg3 Qd6 15. Bb1 Ne7 16. Qd3 Ne4 17. Ne5 f5 18. b4 Rxc1 19. Rxc1 Rc8 20. Rxc8+ Nxc8 21. Nxe4 fxe4 22. Qc2 Nb6 23. Qc5 Nc4 24. Qa7 Qc7 25. Nxc4 Qxc4 26. h3 Qc6 27. Qb8+ Kf7 28. Qf4+ Kg8 29. Qb8+ Kf7 30. Bc2 Qc8 31. Qf4+ Kg8 32. Bd1 Bc6 33. Bh5 g6 34. Bg4 Bd7 35. Qf6 Qe8 36. h4 Qf7 37. Qe5 h6 38. Qb8+ Kg7 39. Qd6 Bc8 40. Qe5+ Kg8 41. Qb8 Qd7 42. h5 Kg7 43. hxg6 Kxg6 44. Qg3 Kh7 45. Bh5 Qg7 46. Qb8 Qb7 47. Qd6 Qd7 48. Qf8 Bb7 49. Bf7 Qc8 50. Qe7 Qc6 51. Qc5 Qd6 1-0

[Event "COL-chT rapid"]
[Site "Cartagena"]
[Date "2019.11.29"]
[Round "2.4"]
[White "Pantoja, Armando Ramiro"]
[Black "Useche Contreras, Maigel"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1768"]
[BlackElo "1976"]
[PlyCount "96"]
[EventDate "2019.11.29"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]
[WhiteTeam "Narino"]
[BlackTeam "Meta"]
[WhiteTeamCountry "COL"]
[BlackTeamCountry "COL"]

1. d4 Nf6 2. Bf4 g6 3. e3 Bg7 4. Nf3 0-0 5. Be2 d6 6. h3 Nbd7 7. 0-0 b6 8. Nbd2 Bb7 9. c3 Re8 10. Re1 e5 11. dxe5 dxe5 12. Bh2 Qe7 13. Nc4 Rad8 14. Qc2 Ne4 15. Rad1 f6 16. Ncd2 Nd6 17. b3 Kh8 18. b4 c5 19. a3 e4 20. Bxd6 Qxd6 21. Nc4 Qc7 22. Nd6 Rf8 23. Nxe4 cxb4 24. axb4 Bxe4 25. Qxe4 Qxc3 26. Rc1 f5 27. Qe6 Qxb4 28. Ng5 Ne5 29. f4 Rde8 30. Qa2 h6 31. Ne6 Nd7 32. Nxf8 Bxf8 33. Qxa7 Nc5 34. Rb1 Qd2 35. Bf3 Rxe3 36. Rxe3 Qxe3+ 37. Kh1 Qxf4 38. Qf7 Bd6 39. Qe8+ Kg7 40. Kg1 h5 41. Rd1 Be5 42. Bd5 Qh2+ 43. Kf1 Qf4+ 44. Kg1 Qe3+ 45. Kh1 Nd3 46. Qg8+ Kh6 47. Rf1 Nf2+ 48. Rxf2 Qd3 0-1

[Event "COL-chT rapid"]
[Site "Cartagena"]
[Date "2019.11.29"]
[Round "3.4"]
[White "Useche Contreras, Maigel"]
[Black "Acuna, Nelson David"]
[Result "1-0"]
[ECO "B35"]
[WhiteElo "1976"]
[BlackElo "1903"]
[PlyCount "20"]
[EventDate "2019.11.29"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]
[WhiteTeam "Meta"]
[BlackTeam "Atlantico"]
[WhiteTeamCountry "COL"]
[BlackTeamCountry "COL"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 0-0 8. Bb3 a5 9. f3 d5 10. exd5 Nb4 1-0

[Event "COL-chT rapid"]
[Site "Cartagena"]
[Date "2019.11.29"]
[Round "6.4"]
[White "Useche Contreras, Maigel"]
[Black "Martinez Paipa, Hernan"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "1976"]
[BlackElo "1888"]
[PlyCount "51"]
[EventDate "2019.11.29"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]
[WhiteTeam "Meta"]
[BlackTeam "Norte de Santander"]
[WhiteTeamCountry "COL"]
[BlackTeamCountry "COL"]

1. e4 g6 2. d4 d6 3. f4 Bg7 4. Nf3 Nd7 5. Bd3 c5 6. c3 Ngf6 7. 0-0 0-0 8. Nbd2 a6 9. a4 Ng4 10. Nc4 Ngf6 11. Ne3 cxd4 12. cxd4 Nh5 13. Nc4 Nb6 14. e5 Qc7 15. b3 d5 16. Nxb6 Qxb6 17. Ba3 Re8 18. Bc5 Qd8 19. a5 Nxf4 20. Bb6 Qd7 21. Ng5 Nxd3 22. Qxd3 Rf8 23. e6 fxe6 24. Rxf8+ Bxf8 25. Qf3 Bg7 26. Qf7+ 1/2-1/2

[Event "COL-chT rapid"]
[Site "Cartagena"]
[Date "2019.11.29"]
[Round "7.4"]
[White "Useche Contreras, Maigel"]
[Black "Tobar Beltran, Carlos Andres"]
[Result "1-0"]
[ECO "C09"]
[WhiteElo "1976"]
[BlackElo "1624"]
[PlyCount "59"]
[EventDate "2019.11.29"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]
[WhiteTeam "Meta"]
[BlackTeam "Cauca"]
[WhiteTeamCountry "COL"]
[BlackTeamCountry "COL"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 Nc6 5. exd5 exd5 6. dxc5 Bxc5 7. Nb3 Bb6 8. Be2 Nge7 9. 0-0 0-0 10. c3 Bf5 11. Bf4 Re8 12. h3 Ng6 13. Bg3 Be4 14. Re1 Qf6 15. Nbd4 Nxd4 16. Nxd4 Nf4 17. Bf1 Ne6 18. Nb5 Qg6 19. Kh2 Nc5 20. Re2 Red8 21. Rd2 Rac8 22. a4 a6 23. Nd4 Ne6 24. Nf3 Nc5 25. Ne5 Qe6 26. f3 Bf5 27. Nd3 Nd7 28. Nf4 Qc6 29. Nxd5 Nc5 30. Ne7+ 1-0

[Event "COL-chT"]
[Site "Cartagena"]
[Date "2019.11.27"]
[Round "6.3"]
[White "Useche Contreras, Maigel"]
[Black "Torres, Richard"]
[Result "0-1"]
[ECO "C07"]
[WhiteElo "2042"]
[BlackElo "1992"]
[PlyCount "98"]
[EventDate "2019.11.24"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]
[WhiteTeam "Meta"]
[BlackTeam "Cauca"]
[WhiteTeamCountry "COL"]
[BlackTeamCountry "COL"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 cxd4 5. Nxd4 Nc6 6. Nb5 d4 7. Nf3 e5 8. Nxe5 Nxe5 9. Bf4 Bd6 10. Qh5 Nd3+ 11. Bxd3 Bxf4 12. e5 g6 13. Qe2 Qe7 14. 0-0 Kf8 15. Rfe1 Bd7 16. Nxd4 Re8 17. Qe4 Qxe5 18. Qxb7 Qxd4 19. g3 Bg5 20. Rxe8+ Bxe8 21. Re1 Nf6 22. h4 Bh6 23. Re7 Qb6 24. Qxa7 Qxa7 25. Rxa7 Kg7 26. Bc4 Rf8 27. b4 Bc6 28. b5 Bd5 29. Bxd5 Nxd5 30. c4 Rb8 31. a4 Nb6 32. c5 Nxa4 33. c6 Rxb5 34. Rxa4 Rc5 35. Ra6 Bd2 36. Kf1 Kf8 37. Ke2 Bc3 38. f3 Ke7 39. g4 h5 40. Kd1 Be5 41. Ke2 Bg3 42. Ke3 hxg4 43. fxg4 Bxh4 44. Kf3 Be1 45. Ke2 Bc3 46. Ke3 Kf6 47. Ke4 Kg5 48. Kf3 f6 49. Rb6 Be5 0-1

[Event "COL-chT"]
[Site "Cartagena"]
[Date "2019.11.26"]
[Round "5.3"]
[White "Useche Contreras, Maigel"]
[Black "Alvarez Angel, Nelson Eduardo"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "2042"]
[BlackElo "1996"]
[PlyCount "82"]
[EventDate "2019.11.24"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]
[WhiteTeam "Meta"]
[BlackTeam "Caqueta"]
[WhiteTeamCountry "COL"]
[BlackTeamCountry "COL"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qb6 5. Nb3 Nf6 6. Nc3 e6 7. Be3 Qc7 8. a3 a6 9. Be2 Bd6 10. Qd2 Be5 11. g4 0-0 12. Bf3 d5 13. exd5 Rd8 14. g5 Nxd5 15. Nxd5 exd5 16. 0-0-0 Bf5 17. Bc5 b6 18. Be3 d4 19. Kb1 dxe3 20. Qe2 exf2 21. Qxf2 Rxd1+ 22. Rxd1 Rd8 23. Re1 Bd7 24. Bd5 Be8 25. c4 Ne7 26. Qe2 Nxd5 27. Qxe5 Qxe5 28. Rxe5 Nf4 29. Kc2 Ba4 30. Kc3 Bxb3 31. Kxb3 Ne6 32. h4 Rd4 33. h5 Rg4 34. Rd5 Rxg5 35. Rd6 b5 36. Rb6 Rxh5 37. Rb8+ Nf8 38. Kb4 bxc4 39. Kxc4 Rb5 40. Rxb5 axb5+ 41. Kxb5 h5 0-1

[Event "COL-chT"]
[Site "Cartagena"]
[Date "2019.11.25"]
[Round "3.3"]
[White "Useche Contreras, Maigel"]
[Black "Fonseca Pinto, Carlos Arturo"]
[Result "0-1"]
[ECO "C86"]
[WhiteElo "2042"]
[BlackElo "2130"]
[PlyCount "140"]
[EventDate "2019.11.24"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]
[WhiteTeam "Meta"]
[BlackTeam "Boyaca"]
[WhiteTeamCountry "COL"]
[BlackTeamCountry "COL"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Be7 7. c3 d6 8. Nbd2 0-0 9. Qe2 Na5 10. Bc2 c5 11. 0-0 Qc7 12. Rd1 Re8 13. Nf1 h6 14. h3 Bf8 15. g4 d5 16. Nh4 Bb7 17. Nf5 Re6 18. N1g3 c4 19. f3 cxd3 20. Bxd3 Rd8 21. Be3 Nc4 22. Bf2 g6 23. Ne3 dxe4 24. fxe4 Red6 25. Bxc4 Rxd1+ 26. Rxd1 Rxd1+ 27. Qxd1 bxc4 28. Qa4 Bc5 29. Qxc4 Qb6 30. Qe2 Nxe4 31. Nxe4 Bxe4 32. b4 Bxe3 33. Bxe3 Qf6 34. Bxh6 Bb7 35. Bd2 Qc6 36. Qh2 Qf3 37. Be1 Bd5 38. Qg3 Qh1+ 39. Kf2 Qe4 40. g5 Bxa2 41. Qf3 Qc2+ 42. Kg3 Qc1 43. Kf2 Qxg5 44. Qe3 Qh5 45. Bd2 Bd5 46. Qd3 Qh4+ 47. Qg3 Qe4 48. h4 Bc4 49. Bg5 Qe2+ 50. Kg1 Qf1+ 51. Kh2 Bd5 52. Qg1 Qf3 53. c4 Qe2+ 54. Kg3 Qxc4 55. Qb6 Qe4 56. Qd8+ Kh7 57. Kf2 Qd4+ 58. Ke1 Qxb4+ 59. Kf2 Qd4+ 60. Ke1 Bf3 61. Qxd4 exd4 62. Kd2 Be4 63. Bf6 d3 64. Bc3 Kh6 65. Ke3 Bf5 66. Kf3 Kh5 67. Be1 d2 68. Bxd2 Kxh4 69. Kf4 Bc2 70. Be1+ Kh5 0-1

[Event "COL-chT"]
[Site "Cartagena"]
[Date "2019.11.24"]
[Round "1.3"]
[White "Useche Contreras, Maigel"]
[Black "Becerra, Juan David"]
[Result "0-1"]
[ECO "B28"]
[WhiteElo "2042"]
[BlackElo "2346"]
[PlyCount "70"]
[EventDate "2019.11.24"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]
[WhiteTeam "Meta"]
[BlackTeam "Bogota"]
[WhiteTeamCountry "COL"]
[BlackTeamCountry "COL"]

1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Bb4 7. Bd2 Nc6 8. g3 Bxc3 9. Bxc3 Nxe4 10. Qg4 Nf6 11. Qxg7 Rg8 12. Qh6 Rg6 13. Qe3 d5 14. 0-0-0 Qe7 15. Qe1 d4 16. Bd2 Bf5 17. Bg2 Rc8 18. Kb1 a5 19. Rc1 a4 20. Na5 e4 21. h4 Nxa5 22. Bxa5 Nd5 23. Bh3 Bxh3 24. Rxh3 Ra6 25. g4 Qe5 26. Bb4 Rac6 27. Qd2 d3 28. Rxd3 exd3 29. Re1 dxc2+ 30. Kc1 Qxe1+ 31. Qxe1+ Re6 32. Qd2 Nxb4 33. Qxb4 Rc7 34. f4 Rd6 35. Qe4+ Kd8 0-1

[Event "COL-ch U2200"]
[Site "Villamaria"]
[Date "2019.11.04"]
[Round "4"]
[White "Ojeda, Jesus David"]
[Black "Useche Contreras, Maigel"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2113"]
[BlackElo "2041"]
[PlyCount "79"]
[EventDate "2019.11.01"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 d5 2. e3 e6 3. Bd3 c5 4. c3 Nf6 5. f4 a6 6. Nf3 Ne4 7. 0-0 Bd7 8. Bxe4 dxe4 9. Ng5 Bc6 10. Nd2 cxd4 11. cxd4 Qd5 12. Qb3 Qf5 13. Qc2 Nd7 14. Ngxe4 h5 15. Qb1 Rh6 16. Ng5 Qd5 17. Ndf3 f5 18. Qc2 h4 19. h3 Be7 20. Bd2 Rh5 21. a4 Bxg5 22. fxg5 Rxg5 23. Be1 Rg6 24. Bxh4 Nf6 25. Qc5 Qxc5 26. dxc5 0-0-0 27. Rf2 Rd5 28. b4 Ne4 29. Rc2 Nd2 30. Ng5 Rd3 31. b5 axb5 32. axb5 Bxb5 33. Ra8+ Kd7 34. Kh2 Bc6 35. e4 Nxe4 36. Nf7 Rd5 37. Rg8 e5 38. Nh8 Rh6 39. Rxg7+ Ke6 40. Re7# 1-0

[Event "COL-ch U2200"]
[Site "Villamaria"]
[Date "2019.11.04"]
[Round "5"]
[White "Useche Contreras, Maigel"]
[Black "Molina, Gildardo"]
[Result "1-0"]
[ECO "B32"]
[WhiteElo "2041"]
[BlackElo "2003"]
[PlyCount "63"]
[EventDate "2019.11.01"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Qf6 8. Qc7 Nge7 9. Nc3 0-0 10. Be3 d5 11. Nxd5 Nxd5 12. exd5 Nd4 13. Bd3 Bf5 14. Bxd4 Bxd3 15. cxd3 exd4 16. 0-0 Rfc8 17. Qxb7 Rab8 18. Qd7 g6 19. Rac1 Rxc1 20. Rxc1 Rxb2 21. Rf1 Rxa2 22. d6 Ra5 23. Qe8+ Kg7 24. d7 Rd5 25. Re1 Qb6 26. g3 Rd6 27. Re7 Qb1+ 28. Kg2 Qb7+ 29. f3 Rf6 30. Rxf7+ Rxf7 31. Qxf7+ Kxf7 32. d8N+ 1-0

[Event "COL-ch U2200"]
[Site "Villamaria"]
[Date "2019.11.03"]
[Round "2"]
[White "Florez, Luis Angel"]
[Black "Useche Contreras, Maigel"]
[Result "1-0"]
[ECO "E16"]
[WhiteElo "2133"]
[BlackElo "2041"]
[PlyCount "45"]
[EventDate "2019.11.01"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 0-0 6. 0-0 b6 7. cxd5 exd5 8. Qc2 Bb7 9. Rd1 Nbd7 10. Bf4 c5 11. Nc3 a6 12. dxc5 bxc5 13. Nh4 Nb6 14. Nf5 Re8 15. Nxe7+ Qxe7 16. Qb3 Qe6 17. Bc7 d4 18. Bxb7 dxc3 19. Bxa8 Nxa8 20. Qxe6 fxe6 21. Be5 cxb2 22. Bxb2 Nd5 23. e4 1-0

[Event "COL-ch U2200"]
[Site "Villamaria"]
[Date "2019.11.03"]
[Round "3"]
[White "Useche Contreras, Maigel"]
[Black "Pardo, Alejandro"]
[Result "0-1"]
[ECO "B42"]
[WhiteElo "2041"]
[BlackElo "2145"]
[PlyCount "68"]
[EventDate "2019.11.01"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Bd3 a6 6. a4 Nc6 7. Nxc6 bxc6 8. 0-0 d5 9. e5 Nd7 10. f4 a5 11. b3 Ba6 12. Bxa6 Qb6+ 13. Kh1 Qxa6 14. Ba3 Bxa3 15. Nxa3 0-0 16. Rf3 f6 17. exf6 Rxf6 18. c4 Raf8 19. Qe2 Nc5 20. Qe3 Ne4 21. Rc1 Qb7 22. cxd5 exd5 23. Nc4 Qc7 24. Ne5 c5 25. Rd1 Qb7 26. Qd3 Rd6 27. Re1 Qb4 28. Rd1 c4 29. bxc4 dxc4 30. Qe2 Rd2 31. Rxd2 Nxd2 32. Re3 Rxf4 33. g3 Qb7+ 34. Nf3 Rxf3 0-1

[Event "COL-ch U2200"]
[Site "Villamaria"]
[Date "2019.11.01"]
[Round "1"]
[White "Useche Contreras, Maigel"]
[Black "Valderrama Espinosa, Gilberto"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "2041"]
[BlackElo "2144"]
[PlyCount "58"]
[EventDate "2019.11.01"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Bc4 exd4 5. Nxd4 Be7 6. Nc3 0-0 7. 0-0 a6 8. a4 c5 9. Nde2 Nc6 10. Bf4 Be6 11. Bd5 Bxd5 12. Nxd5 Nxd5 13. Qxd5 Qb6 14. Ng3 g6 15. Bh6 Rfe8 16. Ra3 Bf6 17. Qxd6 Be5 18. Qd1 Rad8 19. Qb1 c4 20. Be3 Qxb2 21. Ra2 Qxb1 22. Rxb1 Rd7 23. f4 Bg7 24. Kf2 h5 25. e5 f6 26. Ne4 fxe5 27. Nc5 Rf7 28. g3 exf4 29. gxf4 Rfe7 0-1

[Event "COL-ch U2300"]
[Site "Pereira"]
[Date "2019.03.25"]
[Round "8"]
[White "Lopez Idarraga, Daniel Eduardo"]
[Black "Useche Contreras, Maigel"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1992"]
[BlackElo "2041"]
[PlyCount "133"]
[EventDate "2019.03.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 d5 2. Bg5 g6 3. c4 Bg7 4. Nf3 c5 5. Nc3 cxd4 6. Nxd4 dxc4 7. e3 Qa5 8. Bh4 Nc6 9. Bxc4 Qb4 10. Qb3 Qxb3 11. Nxb3 Nf6 12. Bb5 0-0 13. Bxc6 bxc6 14. 0-0 Rb8 15. Rac1 Ba6 16. Rfd1 h6 17. Nc5 Bc8 18. b3 g5 19. Bg3 Ra8 20. e4 Nh5 21. Bc7 Nf4 22. Bxf4 gxf4 23. f3 h5 24. Ne2 a5 25. Nd4 Be5 26. Nxc6 Bf6 27. Kf2 h4 28. e5 Bg5 29. Ne4 Bh6 30. Nxe7+ Kh8 31. Nd6 Be6 32. Nef5 Bg7 33. Nxg7 Kxg7 34. Nc4 a4 35. Nb6 Ra5 36. Nxa4 Rxe5 37. Rc5 Re3 38. Rd4 Re8 39. Rxf4 Bxb3 40. Rxh4 Re2+ 41. Kg3 Rxa2 42. Nc3 Rc2 43. Rg4+ Kf8 44. Rb4 Be6 45. Ne4 Re2 46. Rcb5 Kg7 47. Rb2 Re1 48. Rb1 Re2 49. R5b2 Re3 50. Kf4 Ra3 51. Rb8 Rxb8 52. Rxb8 Ra2 53. Kg3 Bc4 54. Rd8 f5 55. Ng5 Bf1 56. Ne6+ Kf6 57. Nf4 Ra7 58. Rd6+ Kf7 59. Rd1 Bc4 60. Kh4 Kf6 61. Rc1 Rh7+ 62. Nh5+ Kg6 63. Rxc4 Rxh5+ 64. Kg3 Rh8 65. Rc6+ Kg5 66. f4+ Kh5 67. Rf6 1-0

[Event "COL-ch U2300"]
[Site "Pereira"]
[Date "2019.03.25"]
[Round "9"]
[White "Useche Contreras, Maigel"]
[Black "Grajales, Rubiel"]
[Result "1-0"]
[ECO "C06"]
[WhiteElo "2041"]
[BlackElo "2041"]
[PlyCount "41"]
[EventDate "2019.03.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 Qb6 8. Nf3 cxd4 9. cxd4 Be7 10. 0-0 0-0 11. Nf4 Re8 12. b3 Nf8 13. Nh5 Bd7 14. Qd2 Rac8 15. Nxg7 Kxg7 16. Qh6+ Kg8 17. Bg5 Ng6 18. Bxe7 Ncxe7 19. Ng5 Nf8 20. Bxh7+ Nxh7 21. Qxh7+ 1-0

[Event "COL-ch U2300"]
[Site "Pereira"]
[Date "2019.03.24"]
[Round "6"]
[White "Ordonez Gonzalez, Gabriel"]
[Black "Useche Contreras, Maigel"]
[Result "1-0"]
[ECO "A21"]
[WhiteElo "1934"]
[BlackElo "2041"]
[PlyCount "101"]
[EventDate "2019.03.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 b6 3. d3 Bb7 4. e4 Be7 5. g3 Nf6 6. Nf3 d6 7. Bg2 Nbd7 8. 0-0 a5 9. a3 0-0 10. h3 Re8 11. Nh4 Nc5 12. Nf5 Bf8 13. Nd5 Nxd5 14. exd5 a4 15. Be3 Qf6 16. g4 g6 17. Ng3 Nb3 18. Rb1 Bg7 19. Ne4 Qe7 20. g5 Bc8 21. h4 f5 22. gxf6 Bxf6 23. Nxf6+ Qxf6 24. Bg5 Qg7 25. Be4 h6 26. Be3 Bh3 27. Kh2 Bxf1 28. Qxf1 Nd4 29. Qh3 Rf8 30. Rg1 Rf6 31. Qg4 Nf5 32. Bxf5 Rxf5 33. Qxg6 Qxg6 34. Rxg6+ Kf7 35. Rxh6 Rg8 36. Rh7+ Rg7 37. Rh8 Rf3 38. Rc8 Kg6 39. Kg2 Rf5 40. Kf1 Kh5 41. Rh8+ Kg4 42. Ke2 Kh3 43. h5 Rg1 44. Kd2 Rb1 45. Kc2 Rg1 46. Rh7 Rg2 47. h6 Rf3 48. Kd1 Rf8 49. Rxc7 Rb8 50. h7 Rg6 51. Rb7 1-0

[Event "COL-ch U2300"]
[Site "Pereira"]
[Date "2019.03.24"]
[Round "7"]
[White "Useche Contreras, Maigel"]
[Black "Diaz Meneses, Luisa Fernanda"]
[Result "1-0"]
[ECO "B45"]
[WhiteElo "2041"]
[BlackElo "1699"]
[PlyCount "21"]
[EventDate "2019.03.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Be7 10. c4 Nb6 11. Nd6+ 1-0

[Event "COL-ch U2300"]
[Site "Pereira"]
[Date "2019.03.23"]
[Round "4"]
[White "Jaramillo, Martin"]
[Black "Useche Contreras, Maigel"]
[Result "1-0"]
[ECO "A22"]
[BlackElo "2041"]
[PlyCount "51"]
[EventDate "2019.03.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 e5 5. Bg2 c6 6. Nf3 Nd7 7. d3 Nxc3 8. bxc3 Bd6 9. 0-0 0-0 10. a4 b6 11. Nd2 Qc7 12. Nc4 Bc5 13. d4 Ba6 14. Ne3 Be7 15. Nf5 Bf6 16. Ba3 Rfd8 17. Bd6 Qb7 18. Be7 Nf8 19. Bxf6 gxf6 20. Qd2 Ne6 21. Qh6 Bxe2 22. Bxc6 Qc7 23. Bxa8 Rxa8 24. Qxf6 Bd3 25. Ne7+ Kf8 26. Nd5 1-0

[Event "COL-ch U2300"]
[Site "Pereira"]
[Date "2019.03.22"]
[Round "2"]
[White "Pardo Sierra, Aurelio"]
[Black "Useche Contreras, Maigel"]
[Result "1-0"]
[ECO "D61"]
[WhiteElo "1980"]
[BlackElo "2041"]
[PlyCount "105"]
[EventDate "2019.03.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 h6 6. Bh4 0-0 7. Nf3 c6 8. Qc2 Nbd7 9. Rd1 dxc4 10. Bxc4 b5 11. Be2 Nd5 12. Bg3 Bb7 13. 0-0 Qb6 14. e4 Nxc3 15. bxc3 Qa5 16. Rb1 Nb6 17. c4 bxc4 18. Bxc4 Ba6 19. Bxa6 Qxa6 20. Ne5 Rac8 21. Nxc6 Ba3 22. Rfd1 Nd7 23. d5 exd5 24. exd5 Nf6 25. Qd3 Qxd3 26. Rxd3 Bc5 27. Rc1 Rfe8 28. h3 Ne4 29. Kf1 Nxg3+ 30. fxg3 Bd6 31. Re1 Rxe1+ 32. Kxe1 Re8+ 33. Kd2 Re4 34. Rd4 Rxd4+ 35. Nxd4 Bxg3 36. Kd3 Kf8 37. Kc4 Ke8 38. Kb5 Kd7 39. Ka6 g6 40. Nb5 Bf2 41. a4 f5 42. Nxa7 Kd6 43. Nc8+ Kxd5 44. Ne7+ Ke4 45. Nxg6 f4 46. Kb7 f3 47. gxf3+ Kxf3 48. a5 Kg3 49. h4 Kg4 50. a6 Kh5 51. Nf4+ Kxh4 52. Nd5 Kg3 53. Nb6 1-0

[Event "COL-ch U2300"]
[Site "Pereira"]
[Date "2019.03.22"]
[Round "3"]
[White "Useche Contreras, Maigel"]
[Black "Pachon Gutierrez, Adriana Paola"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "2041"]
[BlackElo "1986"]
[PlyCount "74"]
[EventDate "2019.03.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 b6 2. d4 Bb7 3. Bd3 Nf6 4. Qe2 Nc6 5. c3 e5 6. d5 Ne7 7. f4 exf4 8. Bxf4 Ng6 9. Bg3 d6 10. Nd2 Nd7 11. Ngf3 Be7 12. 0-0-0 Bf6 13. h4 Qe7 14. Nd4 Be5 15. Nf5 Qf8 16. Nf3 0-0-0 17. Ba6 Bxg3 18. Nxg3 Nc5 19. Bxb7+ Kxb7 20. Nd4 Ne5 21. b4 Ncd7 22. Nc6 Nxc6 23. dxc6+ Kxc6 24. Qa6 Ne5 25. b5+ Kd7 26. Rd5 g6 27. Rhd1 Qh6+ 28. Kb1 Ke6 29. Qa4 Qxh4 30. Rxe5+ dxe5 31. Qc4+ Kf6 32. Rf1+ Kg5 33. Ne2 f5 34. Qxc7 Qxe4+ 35. Ka1 Qxe2 36. Qe7+ Kg4 37. Qb4+ Rd4 0-1

[Event "COL-ch U2300"]
[Site "Pereira"]
[Date "2019.03.21"]
[Round "1"]
[White "Useche Contreras, Maigel"]
[Black "Zapata Arbelaes, Estiven"]
[Result "0-1"]
[ECO "C67"]
[WhiteElo "2041"]
[BlackElo "2220"]
[PlyCount "46"]
[EventDate "2019.03.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bxc6 dxc6 8. d4 0-0 9. Nd2 Nf5 10. c3 Be6 11. Nf1 c5 12. dxc5 Bxc5 13. Qc2 Qf6 14. Ng4 Qg6 15. Nge3 Rad8 16. Nxf5 Bxf5 17. Qa4 Bd7 18. Qc4 Bc6 19. Ng3 Rfe8 20. Bf4 Bb6 21. b4 a6 22. a4 Qc2 23. Re2 Rd1+ 0-1

[Event "COL-ch"]
[Site "Bogota"]
[Date "2018.11.12"]
[Round "9"]
[White "Gutierrez Herrera, Jose Antonio"]
[Black "Useche Contreras, Maigel"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "2130"]
[BlackElo "1992"]
[PlyCount "120"]
[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. d3 Nc6 3. g3 e6 4. Bg2 a6 5. Nf3 b5 6. Nbd2 Bb7 7. 0-0 d6 8. Re1 Qc7 9. c3 Ne5 10. Nf1 Nf6 11. a4 Be7 12. d4 Nxf3+ 13. Bxf3 0-0 14. d5 Nd7 15. Bg2 exd5 16. exd5 Bf6 17. Ne3 Rae8 18. axb5 axb5 19. Nf5 Ne5 20. Bf4 Bc8 21. Qc2 Bxf5 22. Qxf5 Qc8 23. Qxc8 Rxc8 24. Bxe5 Bxe5 25. f4 Bf6 26. Ra6 Rfd8 27. Re4 h6 28. Bf1 Rb8 29. Kf2 b4 30. cxb4 Rxb4 31. Rxb4 cxb4 32. b3 Bd4+ 33. Kf3 Bc5 34. Ra2 Re8 35. Re2 Ra8 36. Rd2 Ra1 37. Bc4 Rc1 38. Ra2 Rc3+ 39. Kg2 f5 40. Re2 g5 41. fxg5 hxg5 42. Kh3 Kg7 43. Re7+ Kf8 44. Re2 Kf7 45. Kg2 Bd4 46. Re1 Be5 47. Rf1 Kf6 48. Rf3 Bd4 49. g4 f4 50. h4 Rc2+ 51. Kh1 Ke5 52. hxg5 Ke4 53. Rf1 f3 54. Rd1 Ra2 55. g6 Be5 56. Re1+ Kf4 57. Bd3 Kg3 58. Rg1+ Kh3 59. Bf1+ Kh4 60. Bg2 Rxg2 0-1

[Event "COL-ch"]
[Site "Bogota"]
[Date "2018.11.11"]
[Round "8"]
[White "Montenegro, Juan Rolando"]
[Black "Useche Contreras, Maigel"]
[Result "1/2-1/2"]
[ECO "B30"]
[WhiteElo "2111"]
[BlackElo "1992"]
[PlyCount "87"]
[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. d3 Nc6 4. g3 Nf6 5. Bg2 Be7 6. 0-0 0-0 7. c3 d6 8. Qe2 Ne5 9. Ne1 Ng6 10. f4 Qc7 11. g4 Nd7 12. Nf3 f5 13. exf5 exf5 14. g5 Nb6 15. h4 Bd7 16. h5 Nh8 17. a4 Rae8 18. a5 Nc8 19. Qd1 Bd8 20. Nh4 g6 21. Qb3+ Be6 22. Qxb7 Qxb7 23. Bxb7 gxh5 24. Re1 Ng6 25. Ng2 Bd7 26. Bd5+ Kg7 27. b4 h6 28. bxc5 dxc5 29. Be3 hxg5 30. fxg5 Be7 31. Nd2 f4 32. Bf2 Bxg5 33. Ne4 Be7 34. Nxc5 Bf5 35. Ne6+ Bxe6 36. Bxe6 Bf6 37. Rac1 f3 38. Ne3 Rxe6 39. Nf5+ Kf7 40. Nh6+ Ke7 41. Bc5+ Nd6 42. Nf5+ Kd7 43. Rxe6 Kxe6 44. Nxd6 1/2-1/2

[Event "COL-ch"]
[Site "Bogota"]
[Date "2018.11.10"]
[Round "7"]
[White "Useche Contreras, Maigel"]
[Black "Acuna, Nelson David"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "1992"]
[BlackElo "1852"]
[PlyCount "73"]
[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 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. Nbd2 Nf6 7. Qe2 0-0 8. 0-0 h6 9. Nc4 Be6 10. Ne3 a5 11. h3 a4 12. a3 Nh5 13. Ng4 Kh7 14. e5 Qd7 15. Ngh2 f5 16. Be3 b6 17. Rad1 f4 18. Bc1 Rf5 19. Rfe1 b5 20. c4 Qa7 21. Qe4 Qc7 22. Ng4 Raf8 23. cxb5 Bd5 24. Qxa4 Bxf3 25. gxf3 cxb5 26. Qe4 e6 27. b3 Rd8 28. Bb2 Rd5 29. d4 Qd8 30. Qe2 cxd4 31. Qe4 Bxe5 32. Nxe5 Rdxe5 33. Qb7+ Ng7 34. Rxe5 Rxe5 35. Bxd4 Rg5+ 36. Kh2 Qf8 37. Bxg7 1-0

[Event "COL-ch"]
[Site "Bogota"]
[Date "2018.11.09"]
[Round "6"]
[White "Henao, Bernardo Andres"]
[Black "Useche Contreras, Maigel"]
[Result "1-0"]
[ECO "E02"]
[WhiteElo "2169"]
[BlackElo "1992"]
[PlyCount "61"]
[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. g3 0-0 6. Bg2 Nbd7 7. Qb3 dxc4 8. Qxc4 Nb6 9. Qb3 Nbd5 10. 0-0 c6 11. a3 b6 12. Ne5 Bb7 13. Bg5 Nxc3 14. bxc3 Nd5 15. Bxe7 Nxe7 16. a4 a6 17. Rfb1 b5 18. Nd3 Rb8 19. axb5 axb5 20. Nc5 Nf5 21. Nxb7 Rxb7 22. Bxc6 Rb6 23. Bxb5 Nd6 24. Qa4 Ne4 25. Qc2 Qd5 26. Bd3 Rxb1+ 27. Rxb1 Ng5 28. e4 Nf3+ 29. Kg2 Qh5 30. Qe2 Qxh2+ 31. Kxf3 1-0

[Event "COL-ch"]
[Site "Bogota"]
[Date "2018.11.09"]
[Round "5"]
[White "Useche Contreras, Maigel"]
[Black "Rubiano Espitia, Henry"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1992"]
[BlackElo "1600"]
[PlyCount "73"]
[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. Nxd4 Bc5 5. Nb3 Bb6 6. Qe2 Nf6 7. Nc3 0-0 8. Be3 Bxe3 9. Qxe3 a5 10. Bb5 Nb4 11. Rc1 c6 12. Be2 a4 13. Nd2 a3 14. bxa3 Rxa3 15. Ndb1 Ra8 16. a3 Na6 17. 0-0 d5 18. exd5 Nxd5 19. Nxd5 Qxd5 20. c4 Qe6 21. Qf3 Nc5 22. Rc3 Qe4 23. Nd2 Qxf3 24. Bxf3 Be6 25. Ne4 Nxe4 26. Bxe4 Ra4 27. Rb1 Rxc4 28. Rxc4 Bxc4 29. Rxb7 Re8 30. f3 Bb5 31. Ra7 f5 32. Bxf5 Re1+ 33. Kf2 Ra1 34. Be6+ Kf8 35. Rf7+ Kg8 36. Rf6+ Kh8 37. Rf8# 1-0

[Event "COL-ch"]
[Site "Bogota"]
[Date "2018.11.08"]
[Round "4"]
[White "Corredor Rengifo, Luis Fernando"]
[Black "Useche Contreras, Maigel"]
[Result "1/2-1/2"]
[ECO "E07"]
[WhiteElo "2158"]
[BlackElo "1992"]
[PlyCount "53"]
[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 e6 3. c4 d5 4. g3 Be7 5. Bg2 0-0 6. 0-0 Nbd7 7. b3 b6 8. cxd5 exd5 9. Ne5 Bb7 10. Nc3 Nxe5 11. dxe5 Ng4 12. e4 Nxe5 13. Nxd5 Bc5 14. Bb2 f6 15. Qc2 c6 16. Nf4 Qe7 17. Rfd1 Rad8 18. h3 Ba6 19. Bf1 Nf3+ 20. Kg2 Bxf1+ 21. Rxf1 Nd4 22. Qc4+ Kh8 23. Rfe1 b5 24. Qc1 Bb4 25. Bc3 Ba3 26. Bb2 Bc5 27. f3 1/2-1/2

[Event "COL-ch"]
[Site "Bogota"]
[Date "2018.11.07"]
[Round "2"]
[White "Avila Pavas, Santiago"]
[Black "Useche Contreras, Maigel"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "2282"]
[BlackElo "1992"]
[PlyCount "87"]
[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. b3 d6 4. Bb2 Nf6 5. Bb5+ Bd7 6. Qe2 Bxb5 7. Qxb5+ Qd7 8. Nc3 Nc6 9. 0-0-0 a6 10. Qe2 Nd4 11. Nxd4 cxd4 12. Na4 Qc6 13. Bxd4 b5 14. Nc3 e5 15. Be3 Nxe4 16. Nxe4 Qxe4 17. d3 Qc6 18. Bd2 Be7 19. Qe4 Rc8 20. Qxc6+ Rxc6 21. Rhe1 0-0 22. Kb1 Rfc8 23. c4 bxc4 24. dxc4 Rb8 25. Rc1 f5 26. Red1 Kf7 27. f3 g5 28. Be1 Ke6 29. Kc2 h5 30. h3 Rg8 31. Bb4 g4 32. hxg4 hxg4 33. Rh1 Rg6 34. Rcd1 g3 35. f4 exf4 36. Rdf1 Bf6 37. Rxf4 Be5 38. Rf3 d5 39. Re1 Kf6 40. Be7+ Kxe7 41. Rxe5+ Kf7 42. Rexf5+ Kg7 43. Rxd5 Kh6 44. Rdd3 1-0

[Event "COL-ch"]
[Site "Bogota"]
[Date "2018.11.07"]
[Round "3"]
[White "Useche Contreras, Maigel"]
[Black "Cruz Beltran, Andres Euclides"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1992"]
[BlackElo "1756"]
[PlyCount "83"]
[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. Nxd4 Bc5 5. Nb3 Bb6 6. Qe2 d6 7. Be3 Nf6 8. Nc3 Qe7 9. 0-0-0 0-0 10. f3 Ne5 11. Bg5 c6 12. h3 h6 13. Bh4 Be6 14. f4 Ng6 15. Bg3 Bxb3 16. cxb3 Rfe8 17. f5 Ne5 18. Bf4 Bc7 19. Kb1 Rad8 20. g4 d5 21. exd5 Nxd5 22. Nxd5 cxd5 23. Bg2 Qb4 24. Qd2 Qxd2 25. Rxd2 d4 26. Rhd1 Nc4 27. Rxd4 Rxd4 28. Rxd4 Bxf4 29. bxc4 Re1+ 30. Kc2 Re2+ 31. Kb3 Be5 32. Rd8+ Kh7 33. Bd5 Rxb2+ 34. Ka3 Rd2 35. Rd7 Rd3+ 36. Kb4 b6 37. Kb5 h5 38. g5 Rxh3 39. Bxf7 g6 40. Bxg6+ Kg8 41. f6 Rf3 42. Rd8# 1-0

[Event "COL-ch"]
[Site "Bogota"]
[Date "2018.11.06"]
[Round "1"]
[White "Useche Contreras, Maigel"]
[Black "Luque, Manuel Antonio"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1992"]
[BlackElo "1531"]
[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 Qa5 4. Nf3 c6 5. d4 Bg4 6. Bd3 e6 7. Qe2 Nf6 8. Bd2 Qc7 9. h3 Bh5 10. g4 Bg6 11. Bxg6 hxg6 12. Ne5 Bd6 13. 0-0-0 Bxe5 14. dxe5 Nd5 15. f4 Nd7 16. Ne4 Kf8 17. h4 c5 18. h5 gxh5 19. Rxh5 Rxh5 20. gxh5 c4 21. Rg1 Rc8 22. Qg2 c3 23. Qxg7+ Ke7 24. Nxc3 Nxc3 25. Bxc3 a5 26. Qg5+ Kf8 27. h6 Qc5 28. h7 Qe3+ 29. Kb1 1-0

[Event "Bogota Univ Central op-A 5th"]
[Site "Bogota"]
[Date "2011.10.17"]
[Round "9.1"]
[White "Gomez Viana, Duvan Leandro"]
[Black "Useche Contreras, Maigel"]
[Result "0-1"]
[ECO "B80"]
[BlackElo "1992"]
[PlyCount "81"]
[EventDate "2011.10.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e6 7. Be3 Qc7 8. Qd2 Be7 9. 0-0-0 b5 10. h4 Bb7 11. g4 Nfd7 12. Qf2 Nc5 13. Nb3 Nxb3+ 14. axb3 Nd7 15. g5 Nc5 16. Bd4 Rg8 17. Bg2 Nxb3+ 18. cxb3 b4 19. Rd3 bxc3 20. Rxc3 Qd7 21. Kb1 Rc8 22. Rhc1 d5 23. exd5 Rxc3 24. Rxc3 Qxd5 25. Bf1 Bd6 26. Bc4 Qf5+ 27. Bd3 Qa5 28. Bb6 Qe5 29. Qc2 Kd7 30. Bxh7 Rh8 31. Rd3 Rc8 32. Qd2 Ke7 33. Bd4 Qg3 34. Bxg7 Qg1+ 35. Ka2 Rc1 36. Bf6+ Kf8 37. b4 Ra1+ 38. Kb3 Bd5+ 39. Rxd5 exd5 40. Qxd5 Qd1+ 41. Bc2 0-1

[Event "Bogota Univ Central op-A 5th"]
[Site "Bogota"]
[Date "2011.10.17"]
[Round "8.1"]
[White "Useche Contreras, Maigel"]
[Black "Garcia, Leonardo"]
[Result "0-1"]
[ECO "C40"]
[WhiteElo "1992"]
[BlackElo "2017"]
[PlyCount "52"]
[EventDate "2011.10.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 d5 5. Qh5+ g6 6. Nxg6 Nf6 7. Qe5+ Be7 8. Nxh8 dxc4 9. b3 Nc6 10. Qg5 Nd4 11. 0-0 Be6 12. Bb2 Qd6 13. Bxd4 Qxd4 14. Qb5+ Qd7 15. Qxb7 Bd5 16. Qa6 cxb3 17. axb3 Kf8 18. Ra5 Kg7 19. c4 Bc6 20. Rg5+ Kxh8 21. Nc3 h6 22. Rg3 Kh7 23. Nd1 Bd6 24. d4 exd3 25. f4 Bc5+ 26. Nf2 Bxf2+ 0-1

[Event "Bogota Univ Central op-A 5th"]
[Site "Bogota"]
[Date "2011.10.14"]
[Round "2.1"]
[White "Martinez Romero, Martin"]
[Black "Useche Contreras, Maigel"]
[Result "1-0"]
[ECO "E18"]
[WhiteElo "2296"]
[BlackElo "1992"]
[PlyCount "99"]
[EventDate "2011.10.13"]
[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. c4 e6 3. d4 d5 4. g3 b6 5. Bg2 Be7 6. 0-0 0-0 7. Nc3 Bb7 8. cxd5 Nxd5 9. Nxd5 Bxd5 10. Qc2 c5 11. e4 Bb7 12. Be3 cxd4 13. Nxd4 Na6 14. Rfd1 Rc8 15. Qe2 Qc7 16. Nb5 Qb8 17. Rd7 Bc5 18. Bf4 Qa8 19. Nd6 Bc6 20. Rxf7 Rxf7 21. Nxf7 Kxf7 22. Qxa6 Rd8 23. Qe2 Kg8 24. Qg4 Re8 25. Be5 Qb7 26. Rd1 Qf7 27. Bd4 Bxd4 28. Rxd4 e5 29. Rd6 Qc4 30. b3 Qc5 31. Rd2 Qc1+ 32. Qd1 Qxd1+ 33. Rxd1 Kf7 34. f3 Ke7 35. Kf2 g5 36. Ke3 Rf8 37. Bf1 Rf6 38. b4 Ba4 39. Rd5 Rc6 40. Rxe5+ Kf6 41. Rf5+ Kg6 42. Bd3 Rc3 43. Kd4 Ra3 44. Bc4 Bc2 45. g4 a6 46. Bf7+ Kg7 47. Bd5 h6 48. Rf7+ Kg6 49. Ke5 Bd1 50. Be6 1-0

[Event "Bogota Univ Central op-A 5th"]
[Site "Bogota"]
[Date "2011.10.14"]
[Round "3.1"]
[White "Useche Contreras, Maigel"]
[Black "Martinez Baquero, Hugo Esteban"]
[Result "1-0"]
[ECO "B99"]
[WhiteElo "1992"]
[BlackElo "1859"]
[PlyCount "51"]
[EventDate "2011.10.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. 0-0-0 Nbd7 10. g4 b5 11. Bxf6 Bxf6 12. g5 Be7 13. f5 Nc5 14. f6 gxf6 15. gxf6 Bf8 16. Bh3 Bd7 17. Qh5 0-0-0 18. Qxf7 Bh6+ 19. Kb1 Rdf8 20. Qh5 Be3 21. Nxe6 Nxe6 22. Qd5 Nf4 23. Qa8+ Qb8 24. Qc6+ Qc7 25. Bxd7+ Kb8 26. Qxd6 1-0

[Event "Bogota Univ Central op-A 5th"]
[Site "Bogota"]
[Date "2011.10.13"]
[Round "1.1"]
[White "Useche Contreras, Maigel"]
[Black "Ortegon Villacorte, Linda Daniela"]
[Result "1-0"]
[ECO "C05"]
[WhiteElo "1992"]
[BlackElo "1775"]
[PlyCount "39"]
[EventDate "2011.10.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. f4 c5 6. Ne2 Nc6 7. Nf3 Be7 8. g3 f6 9. Bh3 fxe5 10. Bxe6 e4 11. Ng5 Bxg5 12. fxg5 Nf8 13. Bxc8 Rxc8 14. 0-0 Ne6 15. dxc5 Ne5 16. Nd4 Nxd4 17. Qxd4 Nf3+ 18. Rxf3 exf3 19. Qxg7 Rf8 20. Bf4 1-0

[Event "Bogota IRT op Navideno"]
[Site "Bogota"]
[Date "2009.12.08"]
[Round "9"]
[White "Ospina Ortiz, Oscar Alexander"]
[Black "Useche Contreras, Maigel"]
[Result "0-1"]
[ECO "B80"]
[WhiteElo "1992"]
[PlyCount "48"]
[EventDate "2009.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e6 7. Be3 b5 8. Qd2 Nfd7 9. f4 Nc5 10. b4 Ncd7 11. Bd3 Be7 12. 0-0 0-0 13. Nce2 Bb7 14. Ng3 Nc6 15. Nxc6 Bxc6 16. a3 Nf6 17. Qe2 d5 18. e5 Ne4 19. Qh5 f5 20. exf6 Bxf6 21. Rad1 Qe7 22. Bc5 Qf7 23. Bxf8 Bd4+ 24. Kh1 Nxg3+ 0-1

[Event "Bogota IRT op Navideno"]
[Site "Bogota"]
[Date "2009.12.08"]
[Round "8.9"]
[White "Useche Contreras, Maigel"]
[Black "Ramirez, Francisco Javier"]
[Result "1-0"]
[ECO "C14"]
[PlyCount "55"]
[EventDate "2009.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. f4 a6 8. Qg4 g6 9. h4 h5 10. Qe2 c5 11. Nf3 Nc6 12. dxc5 Nxc5 13. 0-0-0 b5 14. Nd4 Bd7 15. Qf3 b4 16. Nce2 Ne4 17. Nxc6 Bxc6 18. Nd4 Bb7 19. Qe3 Rc8 20. Be2 Kf8 21. Bf3 Kg7 22. g4 hxg4 23. Bxg4 Rxh4 24. f5 exf5 25. Bxf5 Rxh1 26. Rxh1 Rh8 27. Bxe4 dxe4 28. Nf5+ 1-0

[Event "Bogota IRT op Navideno"]
[Site "Bogota"]
[Date "2009.12.07"]
[Round "4"]
[White "Useche Contreras, Maigel"]
[Black "Santos Morales, Natalia Andrea"]
[Result "1-0"]
[ECO "C50"]
[BlackElo "2032"]
[PlyCount "53"]
[EventDate "2009.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 d6 5. h3 Nf6 6. d3 Qe7 7. c3 Be6 8. Bb5 Bd7 9. d4 Bb6 10. Re1 0-0-0 11. d5 Nb8 12. Bxd7+ Nbxd7 13. b4 Nh5 14. a4 a6 15. a5 Ba7 16. b5 Nc5 17. Be3 Nf4 18. bxa6 bxa6 19. Bxf4 exf4 20. Nbd2 Nd3 21. Qe2 Nxe1 22. Qxa6+ Kd7 23. Qc6+ Kc8 24. Rxe1 Bc5 25. Nc4 Qe8 26. Qa6+ Kd7 27. e5 1-0

[Event "Bogota IRT op Navideno"]
[Site "Bogota"]
[Date "2009.12.06"]
[Round "5"]
[White "Manrique, Fernando"]
[Black "Useche Contreras, Maigel"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "2019"]
[PlyCount "57"]
[EventDate "2009.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f3 b5 8. Qd2 Nbd7 9. g4 Nb6 10. 0-0-0 Nfd7 11. Qf2 Bb7 12. Kb1 Rc8 13. a3 Qc7 14. Ndxb5 axb5 15. Nxb5 Qb8 16. Bxb6 Bc6 17. Ba7 Qb7 18. Nxd6+ Bxd6 19. Rxd6 0-0 20. Rd2 Ra8 21. Bc5 Rfc8 22. Bb4 Ne5 23. Be2 Ba4 24. Rhd1 Nc6 25. Qc5 h6 26. b3 Na5 27. Qe7 Rc7 28. Rd8+ Kh7 29. Qxc7 1-0

[Event "Bogota IRT op Navideno"]
[Site "Bogota"]
[Date "2009.12.06"]
[Round "1.22"]
[White "Useche Contreras, Maigel"]
[Black "Cifuentes, John Jairo"]
[Result "1-0"]
[ECO "B81"]
[BlackElo "2142"]
[PlyCount "61"]
[EventDate "2009.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. g4 Nfd7 8. Bc4 Ne5 9. Bb3 Qc7 10. Qe2 Nbc6 11. 0-0-0 b5 12. f4 Nxd4 13. Bxd4 Nc6 14. f5 Nxd4 15. Rxd4 Be7 16. fxe6 Bxe6 17. Nd5 Bxd5 18. Rxd5 Bf6 19. Rf5 Qe7 20. h4 Rf8 21. Rhf1 Bxh4 22. Rxf7 Rxf7 23. Rxf7 Qe5 24. Rf5 Qd4 25. c3 Rc8 26. e5 dxe5 27. Rxe5+ Kf8 28. Rd5 Qg1+ 29. Rd1 Qc5 30. Qe6 Qg5+ 31. Rd2 1-0

[Event "Bogota IRT op Navideno"]
[Site "Bogota"]
[Date "2009.12.05"]
[Round "3"]
[White "Pardo, Javier Andres"]
[Black "Useche Contreras, Maigel"]
[Result "1/2-1/2"]
[ECO "B80"]
[WhiteElo "1997"]
[PlyCount "45"]
[EventDate "2009.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e6 7. Be3 b5 8. Qd2 Nbd7 9. 0-0-0 Nb6 10. Bg5 Qc7 11. Bxf6 gxf6 12. f4 h5 13. Nf3 Bb7 14. Qd4 Be7 15. Be2 0-0-0 16. Nd2 Kb8 17. Nb3 Rc8 18. Rd2 h4 19. Na5 Ba8 20. a4 Nxa4 21. Nxa4 Qxa5 22. Qb6+ Qxb6 23. Nxb6 1/2-1/2

[Event "Bogota IRT op Navideno"]
[Site "Bogota"]
[Date "2009.12.04"]
[Round "6.9"]
[White "Useche Contreras, Maigel"]
[Black "Calderon Zuluaga, Andrea"]
[Result "1-0"]
[ECO "B84"]
[BlackElo "1971"]
[PlyCount "51"]
[EventDate "2009.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 b5 7. a3 Bb7 8. 0-0 Nc6 9. Kh1 Be7 10. f4 d6 11. Bf3 Nf6 12. Be3 0-0 13. Qe1 e5 14. Nf5 Rad8 15. Qg3 g6 16. Nxe7+ Qxe7 17. f5 Nd4 18. Bh6 Rfe8 19. Bg5 Nxf3 20. gxf3 d5 21. Qh4 h5 22. Bxf6 Qd7 23. Qg5 Qd6 24. fxg6 fxg6 25. Qxg6+ Kf8 26. Qg7# 1-0

[Event "Bogota IRT op Navideno"]
[Site "Bogota"]
[Date "2009.12.04"]
[Round "2"]
[White "Useche Contreras, Maigel"]
[Black "Poveda, Julio Cesar"]
[Result "1-0"]
[ECO "B18"]
[PlyCount "51"]
[EventDate "2009.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Bd3 Bxd3 8. Qxd3 e6 9. Bf4 Nf6 10. 0-0-0 Be7 11. c4 Nbd7 12. Nf3 b5 13. Ne5 Nxe5 14. Bxe5 Qa5 15. Kb1 0-0 16. c5 Rfd8 17. Qf3 Rd5 18. Ne2 Rc8 19. g4 Nd7 20. Bf4 b4 21. g5 hxg5 22. hxg5 Nf8 23. Qh5 Ng6 24. Qh7+ Kf8 25. Qh8+ Nxh8 26. Rxh8# 1-0

[Event "Bogota Mila Memorial op"]
[Site "Bogota"]
[Date "2009.04.??"]
[Round "9"]
[White "Useche Contreras, Maigel"]
[Black "Rico Amortegui, Oswaldo Jose"]
[Result "0-1"]
[ECO "C01"]
[PlyCount "84"]
[EventDate "2009.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Be3 Nf6 5. Bd3 Bd6 6. Nf3 Bg4 7. h3 Bh5 8. Nbd2 Nbd7 9. c3 c6 10. Qc2 Qc7 11. 0-0-0 0-0-0 12. Kb1 Kb8 13. Rc1 Bxf3 14. Nxf3 h6 15. Rhe1 Rde8 16. c4 dxc4 17. Bxc4 Nb6 18. Nd2 Bb4 19. Qb3 Nxc4 20. Qxb4 Nxe3 21. fxe3 Qg3 22. Nc4 Nd5 23. Qd6+ Qxd6 24. Nxd6 Rxe3 25. Rxe3 Nxe3 26. Nxf7 Rf8 27. Re1 Nd5 28. Nd6 Rf6 29. Ne4 Re6 30. Kc2 Nf4 31. g3 Nxh3 32. Kd2 Kc7 33. a3 Ng5 34. Kd3 g6 35. Nxg5 Rxe1 36. Nf7 Rg1 37. Nxh6 Rxg3+ 38. Ke4 Rb3 39. Nf7 Rxb2 40. Ne5 Re2+ 41. Kf4 Rxe5 42. dxe5 Kd7 0-1

[Event "Pan American-ch U20"]
[Site "Bogota"]
[Date "2006.09.08"]
[Round "9"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Useche Contreras, Maigel"]
[Result "1/2-1/2"]
[ECO "D38"]
[WhiteElo "2068"]
[PlyCount "54"]
[EventDate "2006.09.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 114 Extra"]
[Source "ChessBase"]
[SourceDate "2006.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.03"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 d5 3. c4 Nf6 4. Nc3 Bb4 5. Qc2 Nbd7 6. e3 b6 7. cxd5 exd5 8. Bb5 Bb7 9. Ne5 0-0 10. Nxd7 Nxd7 11. Qa4 Bxc3+ 12. bxc3 Nf6 13. 0-0 a6 14. Bd3 b5 15. Qc2 Re8 16. a4 Bc6 17. axb5 Bxb5 18. c4 dxc4 19. Bxc4 c6 20. Bb2 Ne4 21. Rfc1 Qg5 22. Bd3 f5 23. Qb3+ Kh8 24. d5 Nxf2 25. Bxb5 Nh3+ 26. Kh1 Nf2+ 27. Kg1 Nh3+ 1/2-1/2

[Event "Pan American-ch U20"]
[Site "Bogota"]
[Date "2006.09.07"]
[Round "8"]
[White "Useche Contreras, Maigel"]
[Black "Bejarano, Danny Andres"]
[Result "1-0"]
[ECO "C18"]
[PlyCount "25"]
[EventDate "2006.09.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 114 Extra"]
[Source "ChessBase"]
[SourceDate "2006.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.03"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qc7 7. Nf3 Nc6 8. Bd3 cxd4 9. cxd4 Nxd4 10. Nxd4 Qc3+ 11. Qd2 Qxa1 12. c3 Bd7 13. Nb3 1-0

[Event "Pan American-ch U20"]
[Site "Bogota"]
[Date "2006.09.06"]
[Round "7"]
[White "Carrillo, Javier"]
[Black "Useche Contreras, Maigel"]
[Result "0-1"]
[ECO "E30"]
[PlyCount "106"]
[EventDate "2006.09.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 114 Extra"]
[Source "ChessBase"]
[SourceDate "2006.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.03"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 c5 5. e3 Qa5 6. Qc2 Bxc3+ 7. bxc3 Ne4 8. Bf4 Qxc3+ 9. Qxc3 Nxc3 10. dxc5 Na4 11. Bd6 Na6 12. Nf3 N4xc5 13. Nd4 f6 14. Nb5 Kf7 15. Be2 Ne4 16. Ba3 b6 17. Bf3 d5 18. cxd5 exd5 19. Nd6+ Nxd6 20. Bxd5+ Be6 21. Bxa8 Nc4 22. Be4 Nxa3 23. 0-0 Nc5 24. Bf3 Rd8 25. Rfd1 Rxd1+ 26. Rxd1 Ke7 27. Rc1 Nb5 28. Be2 Nd6 29. f3 f5 30. h3 g6 31. a4 Ndb7 32. g4 Na5 33. Kf2 a6 34. Rb1 Nab3 35. Bd1 Kd6 36. Kg3 b5 37. axb5 axb5 38. Kf4 fxg4 39. hxg4 h6 40. Be2 Bc4 41. Bxc4 bxc4 42. Rh1 c3 43. Rxh6 c2 44. Rh1 Na4 45. Kg5 Nc3 46. Kxg6 Nd1 47. Kf7 c1Q 48. g5 Qc4+ 49. Kf8 Nxe3 50. Rh6+ Kd7 51. Rh7+ Kd8 52. g6 Qe6 53. Rg7 Qe8# 0-1

[Event "Pan American-ch U20"]
[Site "Bogota"]
[Date "2006.09.06"]
[Round "6"]
[White "Panesso, Oscar J"]
[Black "Useche Contreras, Maigel"]
[Result "1-0"]
[ECO "B86"]
[PlyCount "67"]
[EventDate "2006.09.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 114 Extra"]
[Source "ChessBase"]
[SourceDate "2006.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.03"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Be7 8. g4 h6 9. Be3 Nc6 10. Rg1 Nxd4 11. Bxd4 Qa5 12. Qf3 e5 13. Be3 Bd7 14. 0-0-0 0-0-0 15. Nd5 Nxd5 16. Rxd5 Qc7 17. Qxf7 Bc6 18. Rd3 Bxe4 19. Rc3 Bc6 20. Bd5 Kb8 21. Bxc6 bxc6 22. Qc4 Kc8 23. Qxa6+ Kd7 24. Bb6 Ra8 25. Qxa8 Rxa8 26. Bxc7 Kxc7 27. Ra3 Bg5+ 28. Kb1 Rf8 29. f3 Rf4 30. Ra7+ Kb6 31. Rxg7 Rxf3 32. Rg6 e4 33. Rxd6 e3 34. Re6 1-0

[Event "Pan American-ch U20"]
[Site "Bogota"]
[Date "2006.09.05"]
[Round "4"]
[White "Useche Contreras, Maigel"]
[Black "Becerra Ramirez, Juan David"]
[Result "0-1"]
[ECO "B94"]
[BlackElo "2008"]
[PlyCount "54"]
[EventDate "2006.09.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 114 Extra"]
[Source "ChessBase"]
[SourceDate "2006.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.03"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e5 7. Nb3 Be6 8. Bd3 Be7 9. Qe2 Nbd7 10. Rd1 b5 11. 0-0 Nb6 12. Bxf6 Bxf6 13. Nd5 Nxd5 14. exd5 Bd7 15. Nd2 0-0 16. f4 exf4 17. Rxf4 Be5 18. Rff1 Qh4 19. Nf3 Qh5 20. c3 Bf6 21. Qc2 Rac8 22. Qf2 g6 23. h3 Bg7 24. Rfe1 Rfe8 25. Rxe8+ Rxe8 26. c4 bxc4 27. Bxc4 a5 0-1

[Event "Pan American-ch U20"]
[Site "Bogota"]
[Date "2006.09.05"]
[Round "5"]
[White "Useche Contreras, Maigel"]
[Black "Paez, David"]
[Result "0-1"]
[ECO "B02"]
[PlyCount "95"]
[EventDate "2006.09.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 114 Extra"]
[Source "ChessBase"]
[SourceDate "2006.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.03"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nc3 Nxd5 4. Nxd5 Qxd5 5. d4 Nc6 6. Be3 Bf5 7. c3 0-0-0 8. Nf3 f6 9. Be2 g5 10. 0-0 h5 11. Nd2 e5 12. Bc4 Qd6 13. Nb3 h4 14. Qe2 Be6 15. Rfd1 Bxc4 16. Qxc4 h3 17. g3 e4 18. Rd2 Qd5 19. Qxd5 Rxd5 20. Nc1 Be7 21. Ne2 Rhd8 22. Rad1 Rf8 23. g4 Rh8 24. Kh1 Rh4 25. Rg1 Rd8 26. Nc1 Bd6 27. Nb3 Bf4 28. Re2 Re8 29. Nd2 Bd6 30. Nf1 Ne7 31. c4 Ng8 32. c5 Bf4 33. Bxf4 gxf4 34. Nd2 e3 35. fxe3 Rxe3 36. Rxe3 fxe3 37. Nc4 e2 38. Ne3 Nh6 39. Nf5 Rh5 40. Ng3 Rd5 41. Nxe2 f5 42. Rf1 Kd7 43. Rf3 b6 44. cxb6 axb6 45. Kg1 c5 46. Rxh3 Nxg4 47. Rd3 Ne5 48. Rd1 0-1

[Event "Pan American-ch U20"]
[Site "Bogota"]
[Date "2006.09.04"]
[Round "3"]
[White "Alvarez, Jairo"]
[Black "Useche Contreras, Maigel"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "2034"]
[PlyCount "65"]
[EventDate "2006.09.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 114 Extra"]
[Source "ChessBase"]
[SourceDate "2006.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.03"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. a4 e6 5. 0-0 Be7 6. Re1 Nc6 7. c3 Nf6 8. d4 cxd4 9. cxd4 0-0 10. Nc3 a6 11. Bf1 Re8 12. h3 Rc8 13. d5 Ne5 14. Nd4 Ng6 15. dxe6 fxe6 16. Qb3 Rc5 17. Nxe6 Bxe6 18. Qxe6+ Kh8 19. Qb3 Qc8 20. Be3 Rh5 21. Rac1 Qd7 22. Qd1 Ra5 23. Bb6 Rg5 24. Be3 Rh5 25. Be2 Rh4 26. Bg5 Rxe4 27. Bxf6 Bxf6 28. Nxe4 Rxe4 29. Bg4 Rxe1+ 30. Qxe1 Qf7 31. Rc8+ Nf8 32. Qe8 Qxe8 33. Rxe8 1-0

[Event "Pan American-ch U20"]
[Site "Bogota"]
[Date "2006.09.04"]
[Round "2"]
[White "Useche Contreras, Maigel"]
[Black "Carreno Acevedo, Jhonatan Robert"]
[Result "1-0"]
[ECO "C55"]
[PlyCount "59"]
[EventDate "2006.09.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 114 Extra"]
[Source "ChessBase"]
[SourceDate "2006.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.03"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bc4 Nxe4 5. 0-0 Nxc3 6. dxc3 Be7 7. Qd5 0-0 8. Nxe5 Nxe5 9. Qxe5 Bf6 10. Qg3 d5 11. Bd3 Bh4 12. Qf4 Re8 13. Be3 b6 14. c4 Bb7 15. Rad1 c6 16. cxd5 cxd5 17. c4 g6 18. Qg4 h5 19. Qf4 Bf6 20. Be2 Re4 21. Qg3 d4 22. Bxh5 Bh4 23. Qf3 gxh5 24. Qxh5 Qf6 25. g3 dxe3 26. fxe3 Qe6 27. Rd6 Qe7 28. Rh6 Bf6 29. Rfxf6 Rh4 30. Qg5+ 1-0

[Event "Pan American-ch U20"]
[Site "Bogota"]
[Date "2006.09.03"]
[Round "1"]
[White "Michelen Rodriguez, Victor Issac"]
[Black "Useche Contreras, Maigel"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "2051"]
[PlyCount "79"]
[EventDate "2006.09.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 114 Extra"]
[Source "ChessBase"]
[SourceDate "2006.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.03"]
[SourceQuality "1"]

1. d4 e6 2. c4 d5 3. Nc3 Bb4 4. Nf3 Nd7 5. Bf4 Ne7 6. a3 Bxc3+ 7. bxc3 Ng6 8. Bg3 b6 9. cxd5 exd5 10. e3 0-0 11. c4 Bb7 12. Rc1 c5 13. cxd5 Bxd5 14. Bd6 Re8 15. Bb5 Re6 16. dxc5 Nxc5 17. Bxc5 bxc5 18. Rxc5 Bxf3 19. Qxd8+ Rxd8 20. gxf3 Red6 21. 0-0 Nh4 22. f4 Nf3+ 23. Kg2 Nd2 24. Rd1 a6 25. Bxa6 h6 26. Rc8 Kf8 27. Rxd8+ Rxd8 28. a4 Rd6 29. Bb7 Rg6+ 30. Kh1 Rd6 31. a5 Ne4 32. Rxd6 Nxd6 33. a6 Nb5 34. Kg2 Ke7 35. Kf3 Ke6 36. e4 f6 37. Bd5+ Kd6 38. f5 Kc7 39. Kg4 Kb6 40. Kh5 1-0

[Event "Pan American-ch U16"]
[Site "Bogota"]
[Date "2003.06.09"]
[Round "2"]
[White "Useche Contreras, Maigel"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "B72"]
[PlyCount "64"]
[EventDate "2003.06.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Bc4 Bg7 7. 0-0 0-0 8. h3 Nc6 9. Re1 Bd7 10. Be3 Rc8 11. Bd3 d5 12. exd5 Nb4 13. Bg5 Nfxd5 14. Nxd5 Nxd5 15. Be4 Qb6 16. Bxd5 Bxd4 17. Be3 Bxe3 18. Rxe3 Bf5 19. Bb3 Rfd8 20. Qe2 e6 21. c3 Qd6 22. Rd1 Qf4 23. g4 Rxd1+ 24. Bxd1 Bb1 25. Bb3 Rd8 26. Rf3 Rd2 27. Rxf4 Rxe2 28. Ra4 a6 29. Bc4 Re1+ 30. Kg2 b5 31. Bxb5 axb5 32. Rb4 Bd3 0-1

[Event "Pan American-ch U16"]
[Site "Bogota"]
[Date "2003.06.??"]
[Round "7"]
[White "Useche Contreras, Maigel"]
[Black "Garcia Rada, Daniel"]
[Result "0-1"]
[ECO "B66"]
[PlyCount "114"]
[EventDate "2003.06.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Nge2 d6 4. d4 cxd4 5. Nxd4 a6 6. Be2 Nf6 7. Bg5 h6 8. Bh4 e6 9. Qd2 g5 10. Bg3 Nxd4 11. Qxd4 e5 12. Qd2 Be6 13. h4 g4 14. h5 Qc7 15. 0-0-0 0-0-0 16. Qe3 Kb8 17. f3 gxf3 18. gxf3 Rc8 19. Bd3 Rg8 20. Rhg1 b5 21. Kb1 Nxh5 22. Bf2 Rxg1 23. Rxg1 Nf4 24. Bh4 d5 25. exd5 Bc5 26. Qe4 Bxg1 27. dxe6 Nxd3 28. Qxd3 fxe6 29. Ne4 Ba7 30. Bg3 Rg8 31. c3 h5 32. a4 bxa4 33. Qxa6 Qb6 34. Bxe5+ Ka8 35. Qxa4 Rg1+ 36. Ka2 Rg2 37. c4 Rg8 38. c5 Qb7 39. c6 Qb6 40. c7 Rc8 41. Nf6 Kb7 42. Ne8 Ka8 43. Qe4+ Qb7 44. Qxb7+ Kxb7 45. Nd6+ Kxc7 46. Nxc8+ Kxc8 47. Kb1 h4 48. Kc2 Bg1 49. Kd2 h3 50. Kd3 h2 51. Bxh2 Bxh2 52. Kc4 Kc7 53. Kc5 Bg1+ 54. Kc4 Kd6 55. b4 Ke5 56. Kd3 Kf4 57. Ke2 Bb6 0-1

