[Event "Bucaramanga op"]
[Site "Bucaramanga"]
[Date "2023.09.10"]
[Round "8"]
[White "Caballero Marrugo, David Jose"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "2087"]
[BlackElo "2297"]
[PlyCount "80"]
[EventDate "2023.09.06"]
[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. g3 c6 4. Bg2 Bg4 5. Ne5 Bh5 6. c4 e6 7. 0-0 Nbd7 8. Nxd7 Qxd7 9. Qc2 Be7 10. Bf4 0-0 11. Re1 Rfd8 12. cxd5 cxd5 13. Nc3 Rac8 14. Qb3 Rc4 15. a3 Rdc8 16. Rad1 a6 17. f3 b5 18. h4 h6 19. Be5 Qa7 20. g4 Bg6 21. e3 Nd7 22. Bg3 h5 23. Bf1 hxg4 24. fxg4 R4c6 25. e4 dxe4 26. Bf2 Qb8 27. d5 Bc5 28. Nxe4 Bxf2+ 29. Nxf2 exd5 30. Rxd5 Nc5 31. Qh3 Ne6 32. Rde5 Rc5 33. Rxc5 Rxc5 34. Qe3 Rc8 35. h5 Bc2 36. Rc1 Nf8 37. Bg2 Bh7 38. Rd1 Re8 39. Qd4 Qg3 40. Qd6 Re1+ 0-1

[Event "Bucaramanga op"]
[Site "Bucaramanga"]
[Date "2023.09.10"]
[Round "9"]
[White "Rivera, Alberto"]
[Black "Franco Valencia, Beatriz Irene"]
[Result "1-0"]
[ECO "A41"]
[WhiteElo "2297"]
[BlackElo "2097"]
[PlyCount "107"]
[EventDate "2023.09.06"]
[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 d6 2. Nf3 g6 3. c4 Bg7 4. Nc3 e5 5. g3 Nc6 6. d5 Nce7 7. Bg2 h6 8. e4 f5 9. 0-0 Nf6 10. exf5 Nxf5 11. Ne1 0-0 12. Nd3 Re8 13. Re1 Nd4 14. h3 g5 15. Be3 Nf5 16. Bd2 Nd4 17. g4 c5 18. Nc1 Bd7 19. N1e2 Nxg4 20. hxg4 Bxg4 21. Qb1 Nf3+ 22. Bxf3 Bxf3 23. Qf5 Rf8 24. Qe6+ Kh8 25. Ng3 Rf4 26. Nce4 Kh7 27. Re3 Qf8 28. Rae1 Rd8 29. Rb3 Bg4 30. Rxb7 Bxe6 31. dxe6 Re8 32. Bxf4 Re7 33. Rxe7 Qxe7 34. Be3 Qxe6 35. b3 d5 36. cxd5 Qxd5 37. Bxc5 Kg6 38. Re2 Qd1+ 39. Kh2 h5 40. Rd2 Qg4 41. Rd6+ Kh7 42. Be3 h4 43. Nxg5+ Kg8 44. N3e4 Kf8 45. Re6 Bh8 46. Bc5+ Kg7 47. Be3 h3 48. Ng3 Kf8 49. f3 Qb4 50. N3e4 Qe1 51. Bc5+ Kg7 52. Kxh3 Qe2 53. Ng3 Qb5 54. Nf5+ 1-0

[Event "Bucaramanga op"]
[Site "Bucaramanga"]
[Date "2023.09.09"]
[Round "7"]
[White "Rivera, Alberto"]
[Black "Moreno Gonzalez, Maria Camila"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2297"]
[BlackElo "1821"]
[PlyCount "65"]
[EventDate "2023.09.06"]
[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 e6 3. c4 c6 4. Qa4 Nf6 5. Nc3 Bd6 6. Bg5 dxc4 7. Qxc4 b5 8. Qb3 Nbd7 9. e3 Bb7 10. Be2 Rc8 11. 0-0 0-0 12. a4 b4 13. Ne4 Be7 14. Bxf6 Nxf6 15. Nxf6+ gxf6 16. Rfd1 a5 17. Nd2 Kh8 18. Bf3 Rg8 19. Rac1 Qf8 20. Qd3 Bd6 21. Nb3 Bc7 22. g3 f5 23. Qf1 f4 24. exf4 Bxf4 25. Rc5 Ra8 26. Rxa5 Rxa5 27. Nxa5 Qa8 28. Nxb7 Qxb7 29. Qc4 Qe7 30. Qxc6 Bg5 31. a5 Rb8 32. a6 Qa7 33. Qc5 1-0

[Event "Bucaramanga op"]
[Site "Bucaramanga"]
[Date "2023.09.08"]
[Round "6"]
[White "Cabiativa, Juan Esteban"]
[Black "Rivera, Alberto"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "2080"]
[BlackElo "2297"]
[PlyCount "71"]
[EventDate "2023.09.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. 0-0 0-0 7. h3 c6 8. a4 a5 9. Re1 h6 10. Be3 Re8 11. Qd2 Bf8 12. Rad1 Qc7 13. Bb3 Nb8 14. Kh1 Nbd7 15. d5 Nb6 16. Rg1 Bd7 17. g4 c5 18. g5 hxg5 19. Bxg5 Nh7 20. Bh6 g6 21. h4 Qd8 22. h5 Qf6 23. Rg3 Bg4 24. Kg2 Bxh5 25. Be3 Qh8 26. Rh1 Nf6 27. Bg5 Be7 28. Nh4 Nbd7 29. Nf5 Bf8 30. Bc4 Qh7 31. Bb5 Kh8 32. Bxf6+ Nxf6 33. Qg5 Ng8 34. Bxe8 Rxe8 35. Rgh3 f6 36. Rxh5 1-0

[Event "Bucaramanga op"]
[Site "Bucaramanga"]
[Date "2023.09.08"]
[Round "5"]
[White "Rivera, Alberto"]
[Black "Palencia Morales, Wilson Guillermo"]
[Result "1/2-1/2"]
[ECO "D26"]
[WhiteElo "2297"]
[BlackElo "2286"]
[PlyCount "46"]
[EventDate "2023.09.06"]
[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 dxc4 3. e3 e6 4. Bxc4 c5 5. Nf3 Nf6 6. Qe2 a6 7. dxc5 Bxc5 8. Nbd2 0-0 9. 0-0 b5 10. Bd3 Bb7 11. a3 b4 12. Rd1 Qc7 13. Nc4 Nc6 14. Bd2 a5 15. h3 Rfd8 16. Rac1 Rd7 17. axb4 axb4 18. Be1 e5 19. Ng5 Ne7 20. Nxh7 Nxh7 21. Bxh7+ Kxh7 22. Qh5+ Kg8 23. Nxe5 Nc6 1/2-1/2

[Event "Bucaramanga op"]
[Site "Bucaramanga"]
[Date "2023.09.07"]
[Round "3"]
[White "Rivera, Alberto"]
[Black "Rivera, Ingris"]
[Result "1/2-1/2"]
[ECO "E97"]
[WhiteElo "2297"]
[BlackElo "2160"]
[PlyCount "38"]
[EventDate "2023.09.06"]
[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. Nf3 g6 3. c4 Bg7 4. Nc3 0-0 5. e4 d6 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Nd2 Ne8 10. b4 f5 11. Ba3 fxe4 12. Ndxe4 Nf5 13. Bc1 h6 14. Bd3 Qh4 15. Bd2 Nd4 16. f3 Qe7 17. Ne2 Nf5 18. N2c3 Nd4 19. Ne2 Nf5 1/2-1/2

[Event "Bucaramanga op"]
[Site "Bucaramanga"]
[Date "2023.09.06"]
[Round "2"]
[White "Hernandez Fonseca, Maria Paula"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "C22"]
[WhiteElo "2042"]
[BlackElo "2297"]
[PlyCount "88"]
[EventDate "2023.09.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Nf6 5. Bd2 Bb4 6. e5 Nd5 7. Qg3 Bxd2+ 8. Nxd2 Qe7 9. 0-0-0 Qxe5 10. Qxe5+ Nxe5 11. Re1 d6 12. c4 Ne7 13. f4 N5c6 14. Bd3 0-0 15. Ngf3 Bd7 16. a3 Rfe8 17. Kc2 h6 18. Kc3 a5 19. h3 Ng6 20. Bxg6 fxg6 21. Rxe8+ Rxe8 22. Re1 Rb8 23. b4 Kf7 24. c5 axb4+ 25. axb4 Na7 26. Nc4 Nb5+ 27. Kb2 Be6 28. Na5 Bd5 29. cxd6 cxd6 30. Nh4 Re8 31. Rxe8 Kxe8 32. Nxg6 Bxg2 33. h4 Be4 34. h5 Bxg6 35. hxg6 h5 36. Nc4 h4 37. Ne3 h3 38. Ng4 Nd4 39. Kc3 Ne2+ 40. Kd3 Nxf4+ 41. Ke4 Nxg6 42. Nf2 h2 43. Kf5 Kf7 44. Kg4 Ne5+ 0-1

[Event "Bucaramanga op"]
[Site "Bucaramanga"]
[Date "2023.09.06"]
[Round "1"]
[White "Rivera, Alberto"]
[Black "Negron Arias, Juan Carlos"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "2297"]
[BlackElo "1872"]
[PlyCount "139"]
[EventDate "2023.09.06"]
[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 h6 4. Bf4 Bd6 5. Bg3 Nf6 6. e3 Bxg3 7. hxg3 0-0 8. Nf3 Nbd7 9. cxd5 exd5 10. Bd3 Qe7 11. 0-0 c6 12. Qc2 Re8 13. Nd2 Ng4 14. Rfe1 Ndf6 15. Nf1 h5 16. f3 Nh6 17. Rac1 Bd7 18. a3 Qd6 19. Na4 b6 20. b4 Rac8 21. Nb2 a5 22. Na4 axb4 23. Nxb6 Rb8 24. Nxd7 Qxd7 25. axb4 Rxb4 26. Qc5 Rb3 27. Red1 Re6 28. Rb1 Rxb1 29. Rxb1 g6 30. Rb8+ Re8 31. Rb6 Re6 32. Qb4 Kg7 33. Rb7 Qe8 34. Rb8 Qe7 35. Qxe7 Rxe7 36. Rc8 Re6 37. Kf2 Nhg8 38. Nd2 Rd6 39. Nb3 Ne7 40. Ra8 Rd7 41. Nc5 Rc7 42. Ke2 Nd7 43. Nxd7 Rxd7 44. Kd2 Rc7 45. Ra5 Nc8 46. e4 dxe4 47. fxe4 Kf6 48. Bc4 Ke7 49. Ke3 Nd6 50. Bd3 Ne8 51. g4 hxg4 52. Kf4 Rd7 53. Bc4 Nf6 54. Ke3 Nh5 55. Ra6 Rc7 56. Ra5 f6 57. Be2 Rb7 58. Bxg4 Rb3+ 59. Kf2 Nf4 60. Ra7+ Kf8 61. Rc7 Rb6 62. g3 Nd3+ 63. Ke3 Nb2 64. Be6 c5 65. Bd5 cxd4+ 66. Kxd4 Nd1 67. Rc2 Rb2 68. Rxb2 Nxb2 69. Bb3 Ke7 70. Kc3 1-0

[Event "Pereira Gildardo Garcia Memorial-A"]
[Site "Pereira"]
[Date "2022.05.22"]
[Round "9"]
[White "Malka, Samuel"]
[Black "Rivera, Alberto"]
[Result "1-0"]
[ECO "A63"]
[WhiteElo "2169"]
[BlackElo "2318"]
[PlyCount "79"]
[EventDate "2022.05.18"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Nf3 Bg7 8. Bg2 0-0 9. 0-0 Re8 10. Re1 a6 11. a4 Nbd7 12. Bf4 Ng4 13. Bg5 Qb6 14. Qc2 c4 15. Rf1 h6 16. Bd2 Nc5 17. h3 Nf6 18. a5 Qc7 19. Be3 Bf5 20. Qd1 Rxe3 21. fxe3 Qe7 22. Nd2 Qxe3+ 23. Kh2 Re8 24. Nxc4 Qe7 25. Ra3 Nfe4 26. Nxe4 Bxe4 27. Bf3 f5 28. b4 Nd7 29. Bxe4 fxe4 30. Qd2 h5 31. Kg2 Rc8 32. Rc1 Rf8 33. Rf1 Rc8 34. Nb6 Nxb6 35. axb6 Qd8 36. Qf4 Qxb6 37. Qf7+ Kh8 38. Qxg6 Qxb4 39. Qxh5+ Kg8 40. Kg1 1-0

[Event "Pereira Gildardo Garcia Memorial-A"]
[Site "Pereira"]
[Date "2022.05.21"]
[Round "7"]
[White "Heredia Serrano, Carla Sofia"]
[Black "Rivera, Alberto"]
[Result "1/2-1/2"]
[ECO "B52"]
[WhiteElo "2083"]
[BlackElo "2318"]
[PlyCount "50"]
[EventDate "2022.05.18"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. 0-0 Nc6 6. c3 Nf6 7. d4 cxd4 8. cxd4 d5 9. e5 Ng8 10. Nc3 e6 11. a3 Nge7 12. b4 Nc8 13. Be3 Nb6 14. Nd2 Be7 15. Qg4 Kf8 16. Ne2 h5 17. Qh3 Kg8 18. f4 g6 19. Rf3 Bf8 20. f5 exf5 21. Raf1 Nd8 22. Ng3 f4 23. Qxd7 Nxd7 24. Bxf4 Ne6 25. Be3 Rh7 1/2-1/2

[Event "Pereira Gildardo Garcia Memorial-A"]
[Site "Pereira"]
[Date "2022.05.21"]
[Round "8"]
[White "Rivera, Alberto"]
[Black "Torrente, Alejandro Josue"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2318"]
[BlackElo "2111"]
[PlyCount "63"]
[EventDate "2022.05.18"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. c3 Qb6 6. Qc1 Bf5 7. Nh4 Be4 8. Nd2 h6 9. dxc5 Qxc5 10. Nhf3 Bg6 11. h3 Rc8 12. Qd1 e6 13. Qb3 Qb6 14. Qxb6 axb6 15. Bb5 Nd7 16. 0-0 f6 17. Rfe1 e5 18. Bh2 Be7 19. e4 dxe4 20. Nxe4 0-0 21. Rad1 Rfd8 22. Nd6 Bxd6 23. Rxd6 Nc5 24. Red1 Rxd6 25. Rxd6 Kf8 26. Nxe5 Be8 27. Nc4 Nd7 28. Rd1 Na7 29. Nd6 Rc5 30. Bxd7 Bxd7 31. Nxb7 Ba4 32. Rd8+ 1-0

[Event "Pereira Gildardo Garcia Memorial-A"]
[Site "Pereira"]
[Date "2022.05.20"]
[Round "6"]
[White "Rivera, Alberto"]
[Black "Ospina Castro, Santiago"]
[Result "1-0"]
[ECO "C11"]
[WhiteElo "2318"]
[BlackElo "2075"]
[PlyCount "128"]
[EventDate "2022.05.18"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 a6 8. Qd2 b5 9. dxc5 Bxc5 10. Qf2 Qb6 11. Bxc5 Nxc5 12. Bd3 b4 13. Ne2 a5 14. 0-0 Ba6 15. Rfd1 Na4 16. Qxb6 Nxb6 17. Kf2 Ke7 18. Ned4 Nxd4 19. Nxd4 Na4 20. Rab1 Rhc8 21. Re1 Nc5 22. Ke3 a4 23. b3 Nxd3 24. cxd3 Rc3 25. Red1 a3 26. Rbc1 Rac8 27. Rxc3 Rxc3 28. Rd2 Kd7 29. Ne2 Rc8 30. Kf2 h5 31. Ke3 g6 32. h4 Rc7 33. Kf2 Rc8 34. Ke1 Rc7 35. g3 Rc8 36. Kd1 Rc6 37. Ke1 Rc8 38. Kf2 Rc7 39. Ke3 Rc8 40. Kd4 Rc7 41. f5 gxf5 42. Nf4 Rc1 43. Nxh5 Kc6 44. Rh2 Rg1 45. Nf4 Rxg3 46. h5 Rg7 47. h6 Rh7 48. Rh5 Kd7 49. Kc5 Ke7 50. d4 f6 51. Kxb4 fxe5 52. dxe5 d4 53. Kxa3 Kf7 54. Kb2 Bb7 55. Kc2 Be4+ 56. Kd2 Rh8 57. h7 Kg7 58. Nxe6+ Kg6 59. Nf4+ Kg7 60. Rh3 Rxh7 61. Rxh7+ Kxh7 62. Ne6 Kg8 63. Nxd4 Kf7 64. Ke3 Ke7 1-0

[Event "Pereira Gildardo Garcia Memorial-A"]
[Site "Pereira"]
[Date "2022.05.20"]
[Round "5"]
[White "Univio Sanchez, German"]
[Black "Rivera, Alberto"]
[Result "1/2-1/2"]
[ECO "A11"]
[WhiteElo "2052"]
[BlackElo "2318"]
[PlyCount "38"]
[EventDate "2022.05.18"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. 0-0 Bg4 5. c4 e6 6. d3 Nbd7 7. Nbd2 Be7 8. Rb1 a5 9. b3 0-0 10. a3 Qb8 11. b4 axb4 12. axb4 b5 13. Nd4 Rc8 14. h3 Bh5 15. c5 Ra4 16. g4 Bg6 17. N2b3 Rxb4 18. Bd2 Ra4 19. e3 e5 1/2-1/2

[Event "Pereira Gildardo Garcia Memorial-A"]
[Site "Pereira"]
[Date "2022.05.19"]
[Round "3"]
[White "Londono Lopez, Donaldo Eliuver"]
[Black "Rivera, Alberto"]
[Result "1/2-1/2"]
[ECO "C95"]
[WhiteElo "2066"]
[BlackElo "2318"]
[PlyCount "92"]
[EventDate "2022.05.18"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Nb8 10. d4 Nbd7 11. Nbd2 Bb7 12. Bc2 Re8 13. Nf1 Bf8 14. Ng3 g6 15. b3 c5 16. d5 Nb6 17. Be3 a5 18. a4 bxa4 19. bxa4 Ba6 20. Bd3 c4 21. Bf1 Nfd7 22. Qc2 Qc7 23. Reb1 Nc5 24. Nd2 Rec8 25. Rb2 Rab8 26. Be2 h5 27. Kh2 Nd3 28. Rbb1 Nd7 29. Rxb8 Rxb8 30. Rb1 Rxb1 31. Qxb1 N7c5 32. Qc2 Qd7 33. Bxc5 Nxc5 34. Bxc4 Bxc4 35. Nxc4 Qxa4 36. Qxa4 Nxa4 37. Nxa5 Nxc3 38. f3 Bh6 39. Kg1 Kf8 40. Nc4 Ke7 41. Kf1 h4 42. Ne2 Na4 43. Ke1 f5 44. Kd1 Kd7 45. Kc2 Bg5 46. Nc3 Nxc3 1/2-1/2

[Event "Pereira Gildardo Garcia Memorial-A"]
[Site "Pereira"]
[Date "2022.05.19"]
[Round "4"]
[White "Rivera, Alberto"]
[Black "Nieto Medina, Agustin"]
[Result "0-1"]
[ECO "D43"]
[WhiteElo "2318"]
[BlackElo "2119"]
[PlyCount "164"]
[EventDate "2022.05.18"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. Qa4 dxc4 6. Qxc4 b5 7. Qb3 Bb7 8. Bg5 Be7 9. e3 0-0 10. Be2 a6 11. a4 Nbd7 12. 0-0 b4 13. Rfd1 c5 14. dxc5 Bxf3 15. Bxf3 bxc3 16. Bxa8 Nxc5 17. Qa3 Qxa8 18. Bxf6 gxf6 19. Qxc3 Rd8 20. Rxd8+ Qxd8 21. b4 Nxa4 22. Qa3 Nb6 23. Qxa6 Bxb4 24. g3 f5 25. Qb7 Bf8 26. Ra7 Qd1+ 27. Kg2 Qd5+ 28. Qxd5 Nxd5 29. h3 Kg7 30. Rb7 h5 31. h4 Bc5 32. Rb5 Bd6 33. Ra5 Nf6 34. Ra6 Bf8 35. Ra4 Ng4 36. Kf3 Kf6 37. Ke2 Bh6 38. Ra6 Kg6 39. Rb6 Nf6 40. Ra6 Ne4 41. Rc6 Bg7 42. Ra6 Be5 43. Kf3 Bd6 44. Rc6 Bb4 45. Ke2 Nf6 46. Rc4 Bf8 47. Rc8 Kg7 48. Kf3 Ng4 49. Ke2 Be7 50. Rc7 Bf6 51. Rc4 Ne5 52. Ra4 Ng6 53. Ra5 e5 54. Rb5 Nf8 55. f4 exf4 56. exf4 Kg6 57. Rd5 Ne6 58. Ke3 Be7 59. Kf3 Nc5 60. Re5 Kf6 61. Rd5 Ne4 62. Ra5 Bb4 63. Ra6+ Kg7 64. Ra1 Bc5 65. Ra2 Bb4 66. Ra1 Bc3 67. Rc1 Kf6 68. Rd1 Ke6 69. Kg2 Bd2 70. Ra1 Kd5 71. Kf3 Bc3 72. Rd1+ Nd2+ 73. Ke3 Kc4 74. Rxd2 Bxd2+ 75. Kxd2 Kd4 76. Ke2 Ke4 77. Kf2 Kd3 78. Kf3 Kd2 79. Kf2 f6 80. Kg1 Ke1 81. Kg2 Ke2 82. Kh3 Kf1 0-1

[Event "Pereira Gildardo Garcia Memorial-A"]
[Site "Pereira"]
[Date "2022.05.18"]
[Round "2"]
[White "Rivera, Alberto"]
[Black "Mateus, Martha"]
[Result "1-0"]
[ECO "D34"]
[WhiteElo "2318"]
[BlackElo "2039"]
[PlyCount "105"]
[EventDate "2022.05.18"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 c5 5. cxd5 exd5 6. g3 Nc6 7. Bg2 Be7 8. 0-0 0-0 9. dxc5 Bxc5 10. Na4 Be7 11. Be3 Ne4 12. Rc1 Bf6 13. Nd4 Ne5 14. f3 Nd6 15. Bf2 Re8 16. b3 Ng6 17. Re1 Nf5 18. Qd2 Nxd4 19. Bxd4 Be6 20. e3 b6 21. Nc3 Be7 22. Nb5 Bd6 23. Bb2 a6 24. Nxd6 Qxd6 25. Red1 Rad8 26. Qc3 f6 27. Qc7 Rd7 28. Qxd6 Rxd6 29. Bf1 b5 30. Kf2 Red8 31. Rd2 Ne5 32. h3 Rc6 33. Rcd1 Rdc8 34. f4 Nf7 35. Ba3 Rc2 36. g4 g6 37. Bd3 Rxd2+ 38. Rxd2 Nh6 39. Be2 Kf7 40. Bf3 a5 41. Ke2 b4 42. Bb2 Rc5 43. Bd4 Rb5 44. Rc2 Ng8 45. Rc7+ Ke8 46. Rxh7 Bd7 47. Rg7 Be6 48. Ra7 f5 49. Kd2 fxg4 50. hxg4 Nh6 51. Be2 Rb8 52. Be5 Rc8 53. Bb5+ 1-0

[Event "Bogota Excalibur op"]
[Site "Bogota"]
[Date "2022.03.21"]
[Round "6"]
[White "Ramirez, Francisco Javier"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "1824"]
[BlackElo "2322"]
[PlyCount "62"]
[EventDate "2022.03.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 d5 4. Qxd4 dxe4 5. Qxe4 Nf6 6. Qc2 Nc6 7. Nf3 g6 8. Bc4 Bg7 9. Bg5 Qc7 10. Nbd2 0-0 11. 0-0 Bf5 12. Bd3 Nb4 13. cxb4 Qxc2 14. Bxc2 Bxc2 15. Rac1 Rac8 16. Be3 Nd5 17. Bd4 Nxb4 18. Bxg7 Kxg7 19. b3 Rfd8 20. Nc4 Bd3 21. Rfe1 e6 22. Nfe5 f6 23. a3 Nc2 24. Nxd3 Nxe1 25. Nxe1 b5 26. Kf1 bxc4 27. bxc4 Rd4 28. c5 Rd5 29. c6 Rd6 30. c7 Rd7 31. Rc6 Kf7 0-1

[Event "Bogota Excalibur op"]
[Site "Bogota"]
[Date "2022.03.21"]
[Round "7"]
[White "Rivera, Alberto"]
[Black "Gonzalez Mojica, Renan Arturo"]
[Result "1-0"]
[ECO "A21"]
[WhiteElo "2322"]
[BlackElo "2010"]
[PlyCount "18"]
[EventDate "2022.03.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. d4 d6 2. c4 e5 3. Nc3 exd4 4. Qxd4 Nc6 5. Qd2 a5 6. Nf3 Nf6 7. e3 a4 8. Be2 Be6 9. Ng5 Bf5 1-0

[Event "Bogota Excalibur op"]
[Site "Bogota"]
[Date "2022.03.20"]
[Round "4"]
[White "Lopez Ramirez, David Santiago"]
[Black "Rivera, Alberto"]
[Result "1/2-1/2"]
[ECO "A34"]
[WhiteElo "2039"]
[BlackElo "2322"]
[PlyCount "43"]
[EventDate "2022.03.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nc6 3. Nc3 Nf6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nc7 7. 0-0 e5 8. a3 Be7 9. b4 a6 10. bxc5 Bxc5 11. Bb2 Ba7 12. e3 0-0 13. Ne2 e4 14. Nfd4 Nxd4 15. Bxd4 Bf5 16. Bxa7 Rxa7 17. Nd4 Bg6 18. Qb1 Re8 19. Qb6 Nb5 20. Qxd8 Rxd8 21. Nxb5 axb5 22. Rfb1 1/2-1/2

[Event "Bogota Excalibur op"]
[Site "Bogota"]
[Date "2022.03.20"]
[Round "5"]
[White "Rivera, Alberto"]
[Black "Cabiativa, Juan Esteban"]
[Result "1-0"]
[ECO "D26"]
[WhiteElo "2322"]
[BlackElo "1943"]
[PlyCount "59"]
[EventDate "2022.03.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. Qe2 a6 7. Nbd2 b5 8. Bd3 Nc6 9. dxc5 Bxc5 10. a3 Bb7 11. b4 Bb6 12. Bb2 0-0 13. 0-0 Qe7 14. Nb3 Rac8 15. Rac1 Nb8 16. Bd4 Bxd4 17. Nfxd4 Nbd7 18. Na5 Ne5 19. Ndb3 Nxd3 20. Qxd3 Ng4 21. Qd4 h5 22. h3 Nh6 23. e4 Ba8 24. Qe5 Rcd8 25. Nc5 Rd6 26. Rfd1 Rfd8 27. Rxd6 Rxd6 28. Qxh5 e5 29. Rd1 Rg6 30. Rd3 1-0

[Event "Bogota Excalibur op"]
[Site "Bogota"]
[Date "2022.03.19"]
[Round "2"]
[White "Lopez Ramirez, Daniel Giovanny"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "1867"]
[BlackElo "2322"]
[PlyCount "35"]
[EventDate "2022.03.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c4 d6 4. Nc3 e5 5. h3 Nc6 6. g3 Be7 7. Bg2 f5 8. d3 Nf6 9. 0-0 fxe4 10. dxe4 0-0 11. Bg5 Ne8 12. Bxe7 Qxe7 13. Nd5 Qd7 14. a3 Nc7 15. b4 Ne6 16. h4 Ncd4 17. Ng5 h6 18. Qh5 0-1

[Event "Bogota Excalibur op"]
[Site "Bogota"]
[Date "2022.03.19"]
[Round "3"]
[White "Rivera, Alberto"]
[Black "Estrada Velandia, Henry Andres"]
[Result "1/2-1/2"]
[ECO "C88"]
[WhiteElo "2322"]
[BlackElo "1877"]
[PlyCount "33"]
[EventDate "2022.03.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. Nc3 d6 9. d4 exd4 10. Nxd4 Nxd4 11. Qxd4 Bb7 12. Bg5 h6 13. Bxf6 Bxf6 14. Qd3 Re8 15. Nd5 Bxd5 16. Bxd5 Rb8 17. c3 1/2-1/2

[Event "Bogota Excalibur op"]
[Site "Bogota"]
[Date "2022.03.18"]
[Round "1"]
[White "Rivera, Alberto"]
[Black "Suarez, Nelson Ricardo"]
[Result "1-0"]
[ECO "D93"]
[WhiteElo "2322"]
[BlackElo "1635"]
[PlyCount "50"]
[EventDate "2022.03.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Bf4 0-0 6. e3 c5 7. dxc5 Qa5 8. Rc1 dxc4 9. Bxc4 Ne4 10. Be5 Nc6 11. Bxg7 Kxg7 12. a3 Nxc3 13. Rxc3 Bg4 14. Be2 Rfd8 15. Qc1 Bxf3 16. gxf3 Rd7 17. b4 Qd8 18. 0-0 e5 19. Rd1 Qg5+ 20. Kh1 Rad8 21. Rcd3 Rxd3 22. Rxd3 Rxd3 23. Bxd3 a6 24. Qc4 Qf6 25. Be4 g5 1-0

[Event "Bogota Navidad op"]
[Site "Bogota"]
[Date "2019.12.08"]
[Round "6"]
[White "Becerra, Juan David"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2346"]
[BlackElo "2317"]
[PlyCount "95"]
[EventDate "2019.12.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 e6 6. Bd3 cxd4 7. cxd4 Nc6 8. Nc3 Qd6 9. a3 Be7 10. 0-0 0-0 11. Be3 a6 12. Rc1 Rd8 13. Qc2 Bd7 14. Rfd1 Rac8 15. Ng5 g6 16. Qe2 Be8 17. Qf3 e5 18. Qh3 Qd7 19. Qh6 Bf8 20. Nce4 Bxh6 21. Nxf6+ Kg7 22. Nxd7 exd4 23. Ne6+ fxe6 24. Bxh6+ Kxh6 25. Nc5 Ne5 26. Bf1 Rd5 27. b4 a5 28. h3 axb4 29. axb4 b6 30. Ne4 Rxc1 31. Rxc1 Ba4 32. f4 d3 33. fxe5 d2 34. Nxd2 Rxd2 35. Ra1 b5 36. Rc1 Kg5 37. Rc7 h6 38. Rc5 Rd4 39. Bxb5 Rxb4 40. Bd3 Rd4 41. Bf1 Bb3 42. Rc3 Bd5 43. Rg3+ Kf5 44. Re3 Be4 45. Kf2 g5 46. Ra3 Kxe5 47. Ra7 Kf6 48. Be2 0-1

[Event "Bogota Navidad op"]
[Site "Bogota"]
[Date "2019.12.08"]
[Round "7"]
[White "Rivera, Alberto"]
[Black "Pinzon, Jairo David"]
[Result "1/2-1/2"]
[ECO "A57"]
[WhiteElo "2317"]
[BlackElo "2151"]
[PlyCount "20"]
[EventDate "2019.12.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nf3 d6 5. Qc2 g6 6. e4 bxc4 7. Bxc4 Bg7 8. 0-0 0-0 9. Nc3 Nbd7 10. h3 Rb8 1/2-1/2

[Event "Bogota Navidad op"]
[Site "Bogota"]
[Date "2019.12.07"]
[Round "5"]
[White "Rivera, Alberto"]
[Black "Vargas, Mauricio"]
[Result "1/2-1/2"]
[ECO "A21"]
[WhiteElo "2317"]
[BlackElo "2150"]
[PlyCount "21"]
[EventDate "2019.12.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 d6 2. c4 e5 3. Nc3 exd4 4. Qxd4 Nc6 5. Qd2 g6 6. b3 Bg7 7. Bb2 Nf6 8. g3 0-0 9. Nh3 Re8 10. Bg2 Bxh3 11. Bxh3 1/2-1/2

[Event "Medellin Flores op 25th"]
[Site "Medellin"]
[Date "2018.08.07"]
[Round "9"]
[White "Rivera, Alberto"]
[Black "Zapata Arbelaes, Estiven"]
[Result "0-1"]
[ECO "C90"]
[WhiteElo "2325"]
[BlackElo "2174"]
[PlyCount "46"]
[EventDate "2018.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 185 Extra"]
[Source "ChessBase"]
[SourceDate "2018.07.29"]
[SourceVersion "1"]
[SourceVersionDate "2018.07.29"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Be7 7. Nbd2 d6 8. c3 0-0 9. 0-0 Na5 10. Bc2 c5 11. Re1 Nc6 12. a4 Be6 13. h3 b4 14. Nf1 Qc7 15. Bb3 Bxb3 16. Qxb3 bxc3 17. bxc3 Rfb8 18. Qc2 Qb6 19. d4 cxd4 20. cxd4 Nxd4 21. Nxd4 Qxd4 22. Ba3 Rc8 23. Qe2 Rc4 0-1

[Event "Medellin Flores op 25th"]
[Site "Medellin"]
[Date "2018.08.06"]
[Round "7"]
[White "Rivera, Alberto"]
[Black "Rios, Cristhian Camilo"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "2325"]
[BlackElo "2463"]
[PlyCount "74"]
[EventDate "2018.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 185 Extra"]
[Source "ChessBase"]
[SourceDate "2018.07.29"]
[SourceVersion "1"]
[SourceVersionDate "2018.07.29"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. Nc3 c5 4. g3 b6 5. Bg2 Bb7 6. 0-0 Be7 7. b3 0-0 8. Bb2 d6 9. d4 cxd4 10. Nxd4 Bxg2 11. Kxg2 Qc8 12. e4 Nbd7 13. Qe2 Qb7 14. Rfd1 a6 15. f3 Rfe8 16. Rac1 Bf8 17. Rc2 Rac8 18. Rcd2 Ne5 19. Nc2 h6 20. Ne3 Nfd7 21. Kg1 Nc5 22. b4 Ncd7 23. f4 Ng6 24. e5 Ndxe5 25. fxe5 Nxe5 26. Rf1 d5 27. cxd5 Bxb4 28. dxe6 Rxe6 29. Ncd5 Bxd2 30. Qxd2 Nc4 31. Nxc4 Rxc4 32. Nf4 Re8 33. Bxg7 Qc6 34. Ba1 Qc5+ 35. Kh1 Qc6+ 36. Kg1 Qc5+ 37. Kh1 Qc6+ 1/2-1/2

[Event "Medellin Flores op 25th"]
[Site "Medellin"]
[Date "2018.08.05"]
[Round "4"]
[White "Sierra Mejia, Juan Pablo"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "A61"]
[WhiteElo "2173"]
[BlackElo "2325"]
[PlyCount "98"]
[EventDate "2018.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 185 Extra"]
[Source "ChessBase"]
[SourceDate "2018.07.29"]
[SourceVersion "1"]
[SourceVersionDate "2018.07.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 g6 6. Nf3 d6 7. Nd2 Nbd7 8. a4 Bg7 9. a5 0-0 10. Nc4 Ne8 11. Bf4 Ndf6 12. h3 Qe7 13. e3 Nd7 14. Ra4 Ne5 15. Bxe5 Bxe5 16. Nxe5 Qxe5 17. Re4 Qf6 18. Qb3 Rb8 19. Nb5 Qd8 20. Ra4 Bd7 21. Ra2 a6 22. Nc3 b5 23. axb6 Rxb6 24. Qc2 Qg5 25. h4 Qg4 26. Qe4 Nf6 27. Qxg4 Bxg4 28. Bc4 Bd7 29. b3 Bb5 30. Kd2 Bxc4 31. bxc4 Rb4 32. Rxa6 Rd8 33. Rb1 Rxc4 34. f3 Rxh4 35. Rbb6 Rh2 36. Rxd6 Rxg2+ 37. Kd3 Rxd6 38. Rxd6 Kg7 39. Rd8 h5 40. e4 h4 41. e5 Nh5 42. d6 h3 43. d7 h2 44. Rg8+ Kxg8 45. d8Q+ Kg7 46. Qh4 Nf4+ 47. Qxf4 h1Q 48. Kc4 Qh3 49. Nd5 Qe6 0-1

[Event "Medellin Flores op 25th"]
[Site "Medellin"]
[Date "2018.08.04"]
[Round "2"]
[White "Posada, Juan Manuel"]
[Black "Rivera, Alberto"]
[Result "1/2-1/2"]
[ECO "C03"]
[WhiteElo "2158"]
[BlackElo "2325"]
[PlyCount "61"]
[EventDate "2018.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 185 Extra"]
[Source "ChessBase"]
[SourceDate "2018.07.29"]
[SourceVersion "1"]
[SourceVersionDate "2018.07.29"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 a6 4. c3 c5 5. exd5 exd5 6. Bd3 cxd4 7. cxd4 Nc6 8. Ngf3 Bd6 9. h3 Nge7 10. 0-0 0-0 11. Nb3 Bf5 12. Bg5 f6 13. Be3 Qd7 14. Nc5 Bxc5 15. dxc5 Rad8 16. Bf4 Rfe8 17. Re1 Nb4 18. Bxf5 Nxf5 19. Qb3 Rxe1+ 20. Rxe1 Qb5 21. a4 Qxc5 22. Rc1 Nd4 23. Rxc5 Nxb3 24. Rc3 Na1 25. Nd4 Nc6 26. Nxc6 bxc6 27. Rxc6 d4 28. Kf1 d3 29. Ke1 Rd4 30. Be3 Nc2+ 31. Kd2 1/2-1/2

[Event "Medellin Flores op 25th"]
[Site "Medellin"]
[Date "2018.08.04"]
[Round "3"]
[White "Rivera, Alberto"]
[Black "Gomez, Jhon D"]
[Result "1/2-1/2"]
[ECO "D92"]
[WhiteElo "2325"]
[BlackElo "2055"]
[PlyCount "44"]
[EventDate "2018.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 185 Extra"]
[Source "ChessBase"]
[SourceDate "2018.07.29"]
[SourceVersion "1"]
[SourceVersionDate "2018.07.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 d5 5. Bf4 c5 6. dxc5 Qa5 7. Rc1 dxc4 8. e3 Qxc5 9. Qa4+ Bd7 10. Qxc4 Qxc4 11. Bxc4 Nc6 12. h3 Rc8 13. 0-0 0-0 14. Rfd1 Rfd8 15. Be2 h6 16. Ne5 Nxe5 17. Bxe5 Bc6 18. Bd4 Ne4 19. Nxe4 Bxe4 20. Bxg7 Kxg7 21. Rxc8 Rxc8 22. Rd2 Rc2 1/2-1/2

[Event "Medellin Flores op 25th"]
[Site "Medellin"]
[Date "2018.08.03"]
[Round "1"]
[White "Rivera, Alberto"]
[Black "Rios Parra, Juan Fernando"]
[Result "1-0"]
[ECO "D55"]
[WhiteElo "2325"]
[BlackElo "2060"]
[PlyCount "71"]
[EventDate "2018.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 185 Extra"]
[Source "ChessBase"]
[SourceDate "2018.07.29"]
[SourceVersion "1"]
[SourceVersionDate "2018.07.29"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 Be7 5. Bg5 0-0 6. e3 c6 7. Bd3 dxc4 8. Bxc4 b5 9. Bd3 a6 10. a4 Bb7 11. 0-0 Nbd7 12. Qe2 b4 13. Bxf6 gxf6 14. Ne4 f5 15. Ned2 c5 16. e4 fxe4 17. Bxe4 Bxe4 18. Nxe4 cxd4 19. Nxd4 Qb6 20. Rfd1 Rfd8 21. Qh5 Nf8 22. Ng5 Bxg5 23. Qxg5+ Ng6 24. Nf3 Kg7 25. h4 h6 26. Qg4 Kf8 27. h5 Ne7 28. Qf4 Ng8 29. Ne5 Qb7 30. Ng4 Rd5 31. Nxh6 Rad8 32. Rxd5 Rxd5 33. Rc1 Nxh6 34. Rc7 Qa8 35. Qxh6+ Kg8 36. Rc4 1-0

[Event "Bogota Navidad op"]
[Site "Bogota"]
[Date "2016.12.11"]
[Round "8"]
[White "Rivera, Alberto"]
[Black "Ramirez, Francisco Javier"]
[Result "1-0"]
[ECO "D55"]
[WhiteElo "2331"]
[BlackElo "1923"]
[PlyCount "51"]
[EventDate "2016.12.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 0-0 6. Nf3 a6 7. h3 dxc4 8. Bxc4 b5 9. Bd3 Bb7 10. a4 b4 11. Bxf6 Bxf6 12. Ne4 Nd7 13. Rc1 Rc8 14. 0-0 Be7 15. Qe2 a5 16. Rfd1 g6 17. Nc5 Nxc5 18. dxc5 Qe8 19. Bb5 Bc6 20. Ne5 Bxb5 21. axb5 Rd8 22. Rxd8 Bxd8 23. Nc6 Bf6 24. e4 Qa8 25. e5 Bg7 26. Ra1 1-0

[Event "Bogota Navidad op"]
[Site "Bogota"]
[Date "2016.12.10"]
[Round "7"]
[White "Rivera, Alberto"]
[Black "Valle, Efrain"]
[Result "1/2-1/2"]
[ECO "A43"]
[WhiteElo "2331"]
[BlackElo "2124"]
[PlyCount "78"]
[EventDate "2016.12.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. d4 c5 2. d5 d6 3. e4 Nf6 4. Nc3 g6 5. Be2 Bg7 6. Nf3 0-0 7. 0-0 b6 8. h3 Nfd7 9. Bf4 Na6 10. Qd2 Nc7 11. Bh6 Rb8 12. Bxg7 Kxg7 13. a4 a6 14. Rab1 b5 15. axb5 axb5 16. b4 cxb4 17. Na2 Nf6 18. Nxb4 Bb7 19. Qe3 e5 20. dxe6 Nxe6 21. Bd3 Qc7 22. Nd4 Nxd4 23. Qxd4 Qc5 24. Qb2 Qe5 25. Qxe5 dxe5 26. f3 Rfc8 27. Kf2 Rc5 28. Ra1 Ne8 29. Rfb1 Nd6 30. Ra7 Ra8 31. Rxa8 Bxa8 32. Ra1 Bb7 33. Ra5 Kf6 34. c4 Nxc4 35. Bxc4 Rxc4 36. Rxb5 Rc7 37. Nd3 Rc2+ 38. Kg3 Rc3 39. Nf2 Bc8 1/2-1/2

[Event "Medellin Antioquia Cup"]
[Site "Medellin"]
[Date "2016.10.16"]
[Round "8"]
[White "Posada, Juan Manuel"]
[Black "Rivera, Alberto"]
[Result "1-0"]
[ECO "B99"]
[WhiteElo "2039"]
[BlackElo "2348"]
[PlyCount "93"]
[EventDate "2016.10.12"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[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 h6 9. Bh4 Qc7 10. 0-0-0 Nbd7 11. Bd3 b5 12. Rhe1 Bb7 13. Qh3 Nc5 14. e5 dxe5 15. fxe5 Nd5 16. Bxe7 Qxe7 17. Ne4 Nf4 18. Qg3 Nfxd3+ 19. cxd3 Nxe4 20. dxe4 Qg5+ 21. Qe3 Ke7 22. Nb3 Qxe3+ 23. Rxe3 Rac8+ 24. Kb1 Rc4 25. Na5 Rc7 26. Rd6 Rd8 27. Nxb7 Rxb7 28. Rxa6 Rc7 29. a3 Rc5 30. Rc3 Rxe5 31. Rc7+ Rd7 32. Rxd7+ Kxd7 33. Ra7+ Ke8 34. Rb7 g5 35. Kc2 Rxe4 36. Rxb5 Re2+ 37. Kd3 Rxg2 38. a4 Rg1 39. a5 Ra1 40. b4 f5 41. Rb6 Kd7 42. a6 f4 43. b5 Ra3+ 44. Ke2 Ra5 45. Rb7+ Kc8 46. Rh7 Rxb5 47. Rh8+ 1-0

[Event "Medellin Antioquia Cup"]
[Site "Medellin"]
[Date "2016.10.15"]
[Round "7"]
[White "Rivera, Alberto"]
[Black "Blandon Villa, Diego F"]
[Result "0-1"]
[ECO "D89"]
[WhiteElo "2348"]
[BlackElo "2223"]
[PlyCount "51"]
[EventDate "2016.10.12"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Be3 c5 8. Bc4 0-0 9. Ne2 Nc6 10. 0-0 Bg4 11. f3 Na5 12. Bd3 cxd4 13. cxd4 Be6 14. Qd2 Nc4 15. Bxc4 Bxc4 16. Rfe1 Qd7 17. Rac1 Rfc8 18. Red1 Bxe2 19. Rxc8+ Rxc8 20. Qxe2 Qa4 21. d5 Rc2 22. Rd2 Rc1+ 23. Kf2 Bc3 24. d6 Bxd2 25. Bxd2 Rc2 26. e5 0-1

[Event "Medellin Antioquia Cup"]
[Site "Medellin"]
[Date "2016.10.15"]
[Round "6"]
[White "Rivera, Ingris"]
[Black "Rivera, Alberto"]
[Result "1/2-1/2"]
[ECO "A58"]
[WhiteElo "2214"]
[BlackElo "2348"]
[PlyCount "58"]
[EventDate "2016.10.12"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. g3 Bg7 9. Bg2 0-0 10. 0-0 Nbd7 11. Qc2 Qc7 12. Rd1 Rfb8 13. e4 Nb6 14. a4 Nfd7 15. Bf1 Nc4 16. Rb1 Nde5 17. Nxe5 Nxe5 18. Bxa6 Rxa6 19. Nb5 Qa5 20. b3 c4 21. Kg2 cxb3 22. Rxb3 Qxa4 23. Rd4 Qa5 24. Bd2 Qd8 25. Rdb4 Rc8 26. Qb1 Nd7 27. Bc3 Nc5 28. Rb2 Bxc3 29. Nxc3 Qd7 1/2-1/2

[Event "Medellin Antioquia Cup"]
[Site "Medellin"]
[Date "2016.10.14"]
[Round "4"]
[White "Arenas Vanegas, David"]
[Black "Rivera, Alberto"]
[Result "1-0"]
[ECO "C91"]
[WhiteElo "2475"]
[BlackElo "2348"]
[PlyCount "67"]
[EventDate "2016.10.12"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. d4 Bg4 10. d5 Na5 11. Bc2 c6 12. h3 Bc8 13. dxc6 Qc7 14. Nbd2 Qxc6 15. Nf1 Nc4 16. a4 h6 17. Ng3 Be6 18. Nh4 Rfd8 19. Qf3 Qe8 20. Nhf5 Qf8 21. a5 d5 22. Nxe7+ Qxe7 23. exd5 Bxd5 24. Nf5 Qf8 25. Qg3 Kh8 26. b3 Nd6 27. Ba3 Nxf5 28. Bxf5 Qe8 29. Rxe5 Qc6 30. Be7 Bxb3 31. Bxd8 Rxd8 32. Rae1 g6 33. Be4 Qc7 34. Bxg6 1-0

[Event "Medellin Antioquia Cup"]
[Site "Medellin"]
[Date "2016.10.14"]
[Round "5"]
[White "Rivera, Alberto"]
[Black "Vallejo, Humberto"]
[Result "1-0"]
[ECO "E81"]
[WhiteElo "2348"]
[BlackElo "2090"]
[PlyCount "79"]
[EventDate "2016.10.12"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. f3 d6 6. Be3 Nbd7 7. Nge2 c5 8. d5 Ne5 9. Ng3 h5 10. h4 Qb6 11. Qd2 Bd7 12. Be2 a5 13. Qc2 a4 14. a3 Nh7 15. 0-0-0 Ra5 16. Nf1 f5 17. Nd2 f4 18. Bf2 Qc7 19. Rdg1 Nf6 20. g3 Bh6 21. gxf4 Bxf4 22. Bg3 Bxg3 23. Rxg3 Kh7 24. Rhg1 Ng8 25. Nf1 Qd8 26. Qd2 Nh6 27. Nh2 Ra8 28. Nd1 Qe8 29. f4 Neg4 30. Nf3 Rf6 31. e5 dxe5 32. fxe5 Rxf3 33. Bxf3 Nxe5 34. Bxh5 Bf5 35. Be2 Ra6 36. h5 gxh5 37. Rg7+ Kh8 38. Qc3 Nhg4 39. Bxg4 hxg4 40. Qxe5 1-0

[Event "Medellin Antioquia Cup"]
[Site "Medellin"]
[Date "2016.10.13"]
[Round "3"]
[White "Rivera, Alberto"]
[Black "Herrera, Juan Sebastian"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2348"]
[BlackElo "2234"]
[PlyCount "73"]
[EventDate "2016.10.12"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. c3 d6 5. e3 0-0 6. Be2 Nbd7 7. h3 c5 8. 0-0 b6 9. Nbd2 Bb7 10. Re1 Rc8 11. Bh2 Rc7 12. Bd3 Re8 13. Qe2 Qa8 14. a4 Ne4 15. Nxe4 Bxe4 16. Bxe4 Qxe4 17. Nd2 Qb7 18. Qf3 a6 19. Qe2 b5 20. axb5 axb5 21. Nb3 Qb6 22. Red1 Rec8 23. Bg3 Bf6 24. e4 b4 25. Rab1 Bg7 26. d5 Ra7 27. c4 Rca8 28. f4 Qa6 29. Ra1 Qc8 30. Rxa7 Rxa7 31. e5 Nb6 32. Re1 Qa6 33. Ra1 Qb7 34. Re1 Ra8 35. Nd2 b3 36. Ne4 Nc8 37. Kh2 1/2-1/2

[Event "Medellin Flores op 23rd"]
[Site "Medellin"]
[Date "2016.08.07"]
[Round "8"]
[White "Rivera, Alberto"]
[Black "Lora, Joel Fernando"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2342"]
[BlackElo "2228"]
[PlyCount "123"]
[EventDate "2016.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 173 Extra"]
[Source "ChessBase"]
[SourceDate "2016.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2016.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Be7 5. Nc3 Bb7 6. d5 0-0 7. g3 exd5 8. cxd5 b5 9. Bg2 b4 10. axb4 Bxb4 11. Nh4 Re8 12. 0-0 a5 13. Re1 Ba6 14. e4 d6 15. Nf5 Nbd7 16. f3 Nc5 17. Bf1 Qc8 18. Be3 Nfd7 19. Bd4 f6 20. Bxa6 Qxa6 21. f4 g6 22. Qg4 Qc8 23. Rad1 Bxc3 24. bxc3 Nxe4 25. Re3 Ndc5 26. Nh6+ Kf8 27. Qh4 Qd8 28. Ng4 h5 29. Nxf6 Nxf6 30. Bxf6 Qd7 31. Qg5 Kf7 32. Bd4 Qf5 33. Qh6 Rxe3 34. Bxe3 Nb3 35. Qh7+ Kf6 36. Qxc7 Rc8 37. Qxd6+ Kf7 38. Bf2 Rxc3 39. Re1 Rc8 40. Re7+ Kg8 41. Re6 Nd2 42. Rxg6+ Kf7 43. Qe6+ Qxe6 44. Rxe6 Rd8 45. Ra6 Rxd5 46. Kg2 Kg7 47. h3 Nc4 48. g4 Rd3 49. f5 hxg4 50. hxg4 Ne5 51. Bg3 Rd2+ 52. Kh3 Rd3 53. g5 Nf3 54. Kg4 a4 55. Rxa4 Kf7 56. Ra7+ Kg8 57. g6 Nd4 58. f6 Nc6 59. Ra8+ Rd8 60. f7+ Kg7 61. Rxd8 Nxd8 62. Be5+ 1-0

[Event "Medellin Flores op 23rd"]
[Site "Medellin"]
[Date "2016.08.07"]
[Round "9"]
[White "Rivera, Alberto"]
[Black "Valderrama Quiceno, Esteban Alberto"]
[Result "0-1"]
[ECO "B08"]
[WhiteElo "2342"]
[BlackElo "2420"]
[PlyCount "32"]
[EventDate "2016.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 173 Extra"]
[Source "ChessBase"]
[SourceDate "2016.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2016.08.29"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. h3 0-0 6. Be3 c6 7. a4 Nbd7 8. Bd3 a5 9. 0-0 e5 10. dxe5 dxe5 11. Qe2 Qe7 12. Rfd1 Nc5 13. Nd2 Nh5 14. Nb3 Nf4 15. Bxf4 exf4 16. Qf3 Nxd3 0-1

[Event "Medellin Flores op 23rd"]
[Site "Medellin"]
[Date "2016.08.06"]
[Round "7"]
[White "Palencia Morales, Wilson Guillermo"]
[Black "Rivera, Alberto"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "2357"]
[BlackElo "2342"]
[PlyCount "66"]
[EventDate "2016.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 173 Extra"]
[Source "ChessBase"]
[SourceDate "2016.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2016.08.29"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Be2 Be7 6. 0-0 0-0 7. h3 c6 8. a4 Re8 9. Be3 Bf8 10. Nd2 b6 11. d5 cxd5 12. Nxd5 Nxd5 13. exd5 Bb7 14. c4 a5 15. b4 axb4 16. Qb1 g6 17. Qxb4 Bc8 18. Rfb1 Ra6 19. Nb3 f5 20. f3 e4 21. f4 Bg7 22. Ra3 Nc5 23. Nxc5 bxc5 24. Qd2 Re7 25. Qa2 Rea7 26. Bd2 Bd4+ 27. Kh2 Bd7 28. a5 e3 29. Bxe3 Bxe3 30. Rxe3 Rxa5 31. Qb2 Kf7 32. Re1 Qf6 33. Qxf6+ Kxf6 1/2-1/2

[Event "Medellin Flores op 23rd"]
[Site "Medellin"]
[Date "2016.08.06"]
[Round "6"]
[White "Rivera, Alberto"]
[Black "Garcia Pantoja, Roberto"]
[Result "1/2-1/2"]
[ECO "E12"]
[WhiteElo "2342"]
[BlackElo "2463"]
[PlyCount "13"]
[EventDate "2016.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 173 Extra"]
[Source "ChessBase"]
[SourceDate "2016.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2016.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. Bg5 Be7 7. Ng1 1/2-1/2

[Event "Medellin Flores op 23rd"]
[Site "Medellin"]
[Date "2016.08.05"]
[Round "5"]
[White "Almeida Quintana, Omar"]
[Black "Rivera, Alberto"]
[Result "1/2-1/2"]
[ECO "E15"]
[WhiteElo "2532"]
[BlackElo "2342"]
[PlyCount "63"]
[EventDate "2016.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 173 Extra"]
[Source "ChessBase"]
[SourceDate "2016.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2016.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Qa4 Bb7 6. Bg2 c5 7. dxc5 Bxc5 8. 0-0 0-0 9. Nc3 Be7 10. Rd1 Na6 11. Bg5 Nc5 12. Qc2 Qc8 13. Rac1 Rd8 14. Ne1 h6 15. Bxf6 Bxf6 16. b4 Bxg2 17. Nxg2 Nb7 18. Qb3 Be7 19. Nf4 Nd6 20. Na4 Qb7 21. a3 Ne8 22. Nd3 Nf6 23. c5 Rac8 24. Rc2 d6 25. cxd6 Rxd6 26. Rdc1 Rdc6 27. Nab2 Rxc2 28. Rxc2 Rxc2 29. Qxc2 b5 30. Ne5 Bd6 31. Nbd3 Nd7 32. Nxd7 1/2-1/2

[Event "Medellin Flores op 23rd"]
[Site "Medellin"]
[Date "2016.08.05"]
[Round "4"]
[White "Rivera, Alberto"]
[Black "Ramirez, Benjamin Dario"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2342"]
[BlackElo "2206"]
[PlyCount "109"]
[EventDate "2016.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 173 Extra"]
[Source "ChessBase"]
[SourceDate "2016.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2016.08.29"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 Be7 4. Nf3 Nc6 5. Bb3 0-0 6. Nbd2 d6 7. c3 Kh8 8. Nf1 d5 9. Qe2 Be6 10. h3 dxe4 11. dxe4 Bxb3 12. axb3 Nd7 13. Be3 Nc5 14. Bxc5 Bxc5 15. b4 Bd6 16. Ne3 Ne7 17. 0-0 Qe8 18. Rfd1 f6 19. Nd2 a6 20. Ndc4 Rd8 21. Na5 Rb8 22. Nd5 f5 23. Nxe7 Qxe7 24. exf5 e4 25. Nc4 Rxf5 26. Rd4 Re8 27. Re1 Qf8 28. Rxe4 Rxe4 29. Qxe4 Rxf2 30. Nxd6 cxd6 31. Qxb7 h6 32. Qxa6 Rxb2 33. Rf1 Qe7 34. Qd3 Ra2 35. Qf3 Qa7+ 36. Kh1 Qb8 37. Qf8+ Qxf8 38. Rxf8+ Kh7 39. Rd8 Rc2 40. Rxd6 Rxc3 41. b5 Rb3 42. b6 Kg8 43. h4 Kf8 44. h5 Rb4 45. Kg1 Ke7 46. Rg6 Kf7 47. Kf2 Rb3 48. Ke2 Rb5 49. g4 Ke8 50. Kd3 Kd8 51. Kc4 Rb1 52. Kc5 Rc1+ 53. Kd6 Rb1 54. Kc6 Rc1+ 55. Kb7 1-0

[Event "Medellin Flores op 23rd"]
[Site "Medellin"]
[Date "2016.08.04"]
[Round "2"]
[White "Rivera, Alberto"]
[Black "Cardona, Jeyson"]
[Result "1-0"]
[ECO "D52"]
[WhiteElo "2342"]
[BlackElo "2100"]
[PlyCount "81"]
[EventDate "2016.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 173 Extra"]
[Source "ChessBase"]
[SourceDate "2016.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2016.08.29"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qc2 e6 5. Bg5 Nbd7 6. e3 Bd6 7. Nc3 0-0 8. Bd3 h6 9. Bh4 dxc4 10. Bxc4 b5 11. Be2 Bb7 12. 0-0 b4 13. Na4 Qa5 14. Rfc1 Rac8 15. Nc5 Bxc5 16. dxc5 Ba6 17. Bxa6 Qxa6 18. Bg3 Rfd8 19. Bd6 Nf8 20. a3 bxa3 21. Rxa3 Qb7 22. Rca1 Ra8 23. Rb3 Qc8 24. Ne5 Ne8 25. Nc4 Nc7 26. Be7 Rd5 27. e4 Rd4 28. Nd6 Qd7 29. Bxf8 Kxf8 30. Rb7 a6 31. Qc3 Rxd6 32. cxd6 Qxd6 33. Rc1 Rd8 34. g3 Nb5 35. Qxc6 Qd2 36. Qc2 Qg5 37. Qc5+ Qxc5 38. Rxc5 Rd1+ 39. Kg2 g5 40. h3 Rd2 41. Rc6 1-0

[Event "Medellin Flores op 23rd"]
[Site "Medellin"]
[Date "2016.08.04"]
[Round "3"]
[White "Sadusea, Johnny Fernando"]
[Black "Rivera, Alberto"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2115"]
[BlackElo "2342"]
[PlyCount "111"]
[EventDate "2016.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 173 Extra"]
[Source "ChessBase"]
[SourceDate "2016.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2016.08.29"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. f3 e5 4. Nc3 Nc6 5. Nge2 Be7 6. Be3 a6 7. d5 Nb8 8. Qd2 0-0 9. g4 h5 10. gxh5 Nxh5 11. 0-0-0 Nd7 12. Ng3 Ndf6 13. Kb1 Kh7 14. Bd3 g6 15. Nce2 Rh8 16. Rdg1 Bh3 17. Nxh5 Nxh5 18. f4 exf4 19. Nxf4 Nxf4 20. Bxf4 Bf6 21. Bg5 Kg7 22. Qe3 Rh5 23. Bf4 Qe7 24. Be2 Rh7 25. Bg4 Rah8 26. Bxh3 Rxh3 27. Rg3 Rxg3 28. Bxg3 Rh5 29. Re1 b6 30. a4 a5 31. Qd3 Be5 32. Rf1 Kg8 33. Ka2 Bxg3 34. hxg3 Re5 35. Rf4 g5 36. Rf5 Rxe4 37. Rxg5+ Qxg5 38. Qxe4 Qxg3 39. c4 Qg1 40. Qe7 Kg7 41. b3 Qf2+ 42. Kb1 Qf5+ 43. Ka2 Qc2+ 44. Ka3 Qc1+ 45. Ka2 Qc2+ 46. Ka3 Qc1+ 47. Ka2 Kg6 48. Qxc7 Qd2+ 49. Ka3 Qb4+ 50. Ka2 Qc5 51. Qd8 f5 52. Qg8+ Kf6 53. Qg3 Qb4 54. Qf4 Qc5 55. Qg3 Qb4 56. Qf4 1/2-1/2

[Event "Medellin Navideno op"]
[Site "Medellin"]
[Date "2015.12.13"]
[Round "7"]
[White "Almeida Quintana, Omar"]
[Black "Rivera, Alberto"]
[Result "1-0"]
[ECO "D58"]
[WhiteElo "2527"]
[BlackElo "2344"]
[PlyCount "40"]
[EventDate "2015.12.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 169 Extra"]
[Source "ChessBase"]
[SourceDate "2015.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.12.18"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 0-0 7. e3 b6 8. Qb3 Bb7 9. Bxf6 Bxf6 10. cxd5 exd5 11. Rd1 a6 12. Bd3 Qd6 13. Bb1 Nd7 14. a3 c5 15. dxc5 Nxc5 16. Qc2 g6 17. Ba2 Bxc3+ 18. Qxc3 Ne4 19. Qd4 Rfd8 20. 0-0 Rac8 1-0

[Event "Medellin Navideno op"]
[Site "Medellin"]
[Date "2015.12.13"]
[Round "6"]
[White "Rivera, Alberto"]
[Black "Castaneda Jimenez, Jhon David"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "2344"]
[BlackElo "2228"]
[PlyCount "85"]
[EventDate "2015.12.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 169 Extra"]
[Source "ChessBase"]
[SourceDate "2015.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.12.18"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. 0-0 Ngf6 5. Re1 a6 6. Bf1 e5 7. c3 Be7 8. d4 0-0 9. a4 exd4 10. cxd4 cxd4 11. Nxd4 Nc5 12. Nc3 Re8 13. f3 Bf8 14. a5 g6 15. Bc4 Bg7 16. Be3 Nfd7 17. Nd5 Ne5 18. Ba2 Bd7 19. Qd2 Ne6 20. Nxe6 Bxe6 21. Bb6 Qh4 22. Nc7 Bxa2 23. Nxe8 Rxe8 24. Rxa2 Bh6 25. Qf2 Qh5 26. Rf1 Nd3 27. Qc2 Nf4 28. Ra4 Qb5 29. Rc4 Bf8 30. Qa4 Qxb2 31. Rc2 Qe5 32. Bd4 Qe6 33. Ba1 Bg7 34. Bxg7 Kxg7 35. Rd1 Kg8 36. Rcd2 d5 37. g3 Nh3+ 38. Kg2 Ng5 39. Rxd5 Qh3+ 40. Kh1 Re5 41. Rxe5 Nxf3 42. Re8+ Kg7 43. Qc2 1-0

[Event "Medellin Navideno op"]
[Site "Medellin"]
[Date "2015.12.12"]
[Round "5"]
[White "Contreras, Henry"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "B43"]
[WhiteElo "2203"]
[BlackElo "2344"]
[PlyCount "74"]
[EventDate "2015.12.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 169 Extra"]
[Source "ChessBase"]
[SourceDate "2015.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.12.18"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. g3 Bb4 7. Bd2 Nf6 8. Bg2 Nc6 9. Nxc6 bxc6 10. 0-0 Be7 11. Re1 e5 12. h3 0-0 13. Qe2 d6 14. Na4 h6 15. c4 Nd7 16. b4 Rd8 17. f4 Rb8 18. a3 Nb6 19. Nxb6 Qxb6+ 20. Kh2 Bf6 21. Be3 Qc7 22. f5 Bb7 23. Rac1 Qe7 24. c5 Bg5 25. cxd6 Rxd6 26. Red1 Rbd8 27. Rxd6 Rxd6 28. Rf1 Bxe3 29. Qxe3 Rd4 30. f6 Qd6 31. fxg7 Kxg7 32. Qf2 f6 33. Qf5 Rd2 34. h4 Qe7 35. Kh1 Rd8 36. Qg4+ Kh7 37. Rd1 Bc8 0-1

[Event "Medellin Navideno op"]
[Site "Medellin"]
[Date "2015.12.12"]
[Round "4"]
[White "Rivera, Alberto"]
[Black "Rios Parra, Juan Fernando"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "2344"]
[BlackElo "2054"]
[PlyCount "59"]
[EventDate "2015.12.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 169 Extra"]
[Source "ChessBase"]
[SourceDate "2015.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.12.18"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Be7 6. Bd3 0-0 7. 0-0 dxc4 8. Bxc4 b5 9. Bd3 a6 10. a4 Bb7 11. Qe2 Nbd7 12. Rd1 Qb8 13. e4 b4 14. Nb1 c5 15. Nbd2 cxd4 16. e5 Nd5 17. Nb3 Rd8 18. h4 h6 19. Qe4 Nf8 20. Qg4 f5 21. Qg3 Kh8 22. Nbxd4 Qc8 23. Bd2 Qd7 24. h5 Qe8 25. Qh3 Rac8 26. g4 fxg4 27. Qxg4 Qf7 28. Bg6 Nxg6 29. hxg6 Qf8 30. Nxe6 1-0

[Event "Medellin Navideno op"]
[Site "Medellin"]
[Date "2015.12.11"]
[Round "3"]
[White "Escobar Medina, Andres F"]
[Black "Rivera, Alberto"]
[Result "1-0"]
[ECO "C69"]
[WhiteElo "2227"]
[BlackElo "2344"]
[PlyCount "95"]
[EventDate "2015.12.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 169 Extra"]
[Source "ChessBase"]
[SourceDate "2015.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.12.18"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 f6 6. d4 exd4 7. Nxd4 c5 8. Nb3 Qxd1 9. Rxd1 Bg4 10. f3 Be6 11. Bf4 c4 12. Nd4 0-0-0 13. Nc3 Rxd4 14. Rxd4 Bc5 15. Ne2 Bxd4+ 16. Nxd4 Bd7 17. e5 fxe5 18. Bxe5 Nf6 19. Bxf6 gxf6 20. c3 Rd8 21. Re1 c5 22. Nc2 Bf5 23. Ne3 Be6 24. Kf2 Rf8 25. Rd1 Kc7 26. f4 b5 27. f5 Bd7 28. g4 Bc6 29. h4 h6 30. Nd5+ Bxd5 31. Rxd5 Rg8 32. Kf3 Re8 33. Rd2 Re1 34. Re2 Rf1+ 35. Kg2 Rd1 36. Re7+ Kd8 37. Re6 Rd2+ 38. Kf3 Rxb2 39. Rxf6 Rxa2 40. g5 hxg5 41. hxg5 Ra1 42. g6 Rg1 43. Rxa6 Ke8 44. Rc6 b4 45. cxb4 cxb4 46. Rxc4 Ke7 47. Rxb4 Kf6 48. Rg4 1-0

[Event "Medellin Navideno op"]
[Site "Medellin"]
[Date "2015.12.11"]
[Round "2"]
[White "Rivera, Alberto"]
[Black "Pedraza, Yonnattanth"]
[Result "1/2-1/2"]
[ECO "E12"]
[WhiteElo "2344"]
[BlackElo "2176"]
[PlyCount "46"]
[EventDate "2015.12.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 169 Extra"]
[Source "ChessBase"]
[SourceDate "2015.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.12.18"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. Bg5 Be7 7. e3 h6 8. Bxf6 Bxf6 9. cxd5 exd5 10. Be2 0-0 11. 0-0 Re8 12. b4 Nd7 13. Qb3 Nf8 14. Rac1 Ne6 15. Rfd1 a6 16. Ne1 Qd6 17. Bf1 g6 18. Nd3 Rad8 19. a4 Bg7 20. b5 a5 21. Qa2 Re7 22. g3 h5 23. Bg2 Bf6 1/2-1/2

[Event "Medellin Navideno op"]
[Site "Medellin"]
[Date "2015.12.10"]
[Round "1"]
[White "Rosero Zapata, Luis Fernando"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "2034"]
[BlackElo "2344"]
[PlyCount "56"]
[EventDate "2015.12.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 169 Extra"]
[Source "ChessBase"]
[SourceDate "2015.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.12.18"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 d5 3. Bg2 c6 4. Nf3 Bg4 5. Ne5 Bh5 6. c4 e6 7. 0-0 Nbd7 8. Bg5 Be7 9. Nxd7 Qxd7 10. cxd5 cxd5 11. Nc3 0-0 12. Rc1 Rac8 13. Qb3 h6 14. Bf4 Rc4 15. e4 Rb4 16. Qc2 Bg6 17. Qe2 dxe4 18. Be5 Bh5 19. Qd2 Ng4 20. a3 Nxe5 21. axb4 Nf3+ 22. Bxf3 Bxf3 23. Nxe4 Bxe4 24. f4 Bf6 25. d5 Qxd5 26. Rfd1 Qf5 27. Rc5 Bd5 28. Qe2 Bd8 0-1

[Event "Florencia op"]
[Site "Florencia"]
[Date "2015.12.08"]
[Round "7"]
[White "Gomez Barrero, Sergio"]
[Black "Rivera, Alberto"]
[Result "1/2-1/2"]
[ECO "B92"]
[WhiteElo "2054"]
[BlackElo "2344"]
[PlyCount "18"]
[EventDate "2015.12.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 169 Extra"]
[Source "ChessBase"]
[SourceDate "2015.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.12.18"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be7 8. Be2 Be6 9. 0-0 Nbd7 1/2-1/2

[Event "Florencia op"]
[Site "Florencia"]
[Date "2015.12.07"]
[Round "6"]
[White "Rivera, Alberto"]
[Black "Becerra, Juan David"]
[Result "1-0"]
[ECO "A64"]
[WhiteElo "2344"]
[BlackElo "2217"]
[PlyCount "87"]
[EventDate "2015.12.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 169 Extra"]
[Source "ChessBase"]
[SourceDate "2015.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.12.18"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 c5 6. d5 d6 7. Nc3 e6 8. 0-0 exd5 9. cxd5 Re8 10. Nd2 a6 11. a4 Nbd7 12. h3 Rb8 13. Rb1 Nh5 14. Nc4 Ne5 15. Na3 f5 16. Kh2 Nf7 17. Bd2 Bd7 18. f4 Qe7 19. Re1 Nf6 20. a5 h5 21. Nc4 h4 22. gxh4 Bb5 23. b3 Nh5 24. e3 Qxh4 25. Ne2 Nf6 26. Bf3 Bxc4 27. bxc4 Qf2+ 28. Bg2 Ng4+ 29. hxg4 Ne5 30. Ng3 Kf7 31. Rf1 Rh8+ 32. Nh5 Qh4+ 33. Kg1 Nxg4 34. Rf3 Rxh5 35. Rb6 Rbh8 36. Rxb7+ Kg8 37. Rxg7+ Kxg7 38. Bc3+ Nf6 39. Qb3 Rf8 40. Qb6 Kg8 41. Qxd6 Rf7 42. Qe6 Kf8 43. Rh3 Qxh3 44. Bxh3 1-0

[Event "Florencia op"]
[Site "Florencia"]
[Date "2015.12.06"]
[Round "4"]
[White "Peralta, Nestor Eduardo"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "D02"]
[BlackElo "2344"]
[PlyCount "35"]
[EventDate "2015.12.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 169 Extra"]
[Source "ChessBase"]
[SourceDate "2015.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.12.18"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Nf3 Bf5 4. Bf4 e6 5. e3 a6 6. Be2 c5 7. 0-0 Nc6 8. Nh4 Nd7 9. e4 Bg6 10. Bg5 Qb6 11. Nxg6 hxg6 12. Be3 Qxb2 13. Na4 Qa3 14. c4 Qb4 15. g3 dxc4 16. Nc3 Qb6 17. d5 Nce5 18. d6 0-1

[Event "Florencia op"]
[Site "Florencia"]
[Date "2015.12.06"]
[Round "5"]
[White "Rivera, Alberto"]
[Black "Cadena Montoya, Gustavo Adolfo"]
[Result "1/2-1/2"]
[ECO "E12"]
[WhiteElo "2344"]
[BlackElo "2180"]
[PlyCount "15"]
[EventDate "2015.12.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 169 Extra"]
[Source "ChessBase"]
[SourceDate "2015.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.12.18"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 Be7 6. Bg5 d6 7. e3 Nbd7 8. e4 1/2-1/2

[Event "Florencia op"]
[Site "Florencia"]
[Date "2015.12.06"]
[Round "3"]
[White "Rivera, Alberto"]
[Black "Trujillo Quesada, Harlinson"]
[Result "1-0"]
[ECO "E73"]
[WhiteElo "2344"]
[BlackElo "1945"]
[PlyCount "54"]
[EventDate "2015.12.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 169 Extra"]
[Source "ChessBase"]
[SourceDate "2015.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.12.18"]
[SourceQuality "1"]

1. d4 d6 2. c4 Nf6 3. Nc3 g6 4. e4 Bg7 5. Be2 Na6 6. Nf3 c5 7. d5 Bg4 8. Be3 0-0 9. 0-0 Nc7 10. Ne1 Bxe2 11. Qxe2 a6 12. a4 e5 13. dxe6 Nh5 14. Nd3 Qh4 15. g3 Qh3 16. f3 Qxe6 17. g4 Nf6 18. Rab1 h5 19. a5 Nh7 20. b4 cxb4 21. Rxb4 Ne8 22. Na4 Qe7 23. Nb6 Rb8 24. Qg2 f6 25. h4 f5 26. gxf5 Rf7 27. c5 Bf8 1-0

[Event "Florencia op"]
[Site "Florencia"]
[Date "2015.12.05"]
[Round "2"]
[White "Moreno, Pablo Emilio"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "1775"]
[BlackElo "2344"]
[PlyCount "44"]
[EventDate "2015.12.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 169 Extra"]
[Source "ChessBase"]
[SourceDate "2015.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.12.18"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Bc4 a6 4. c3 Nc6 5. 0-0 d5 6. exd5 exd5 7. Bb3 Nf6 8. d4 h6 9. Re1+ Be6 10. Bf4 Be7 11. dxc5 Bxc5 12. h3 0-0 13. Nbd2 Re8 14. Nf1 Qb6 15. Be3 Rad8 16. Qd3 d4 17. cxd4 Nxd4 18. Nxd4 Bxd4 19. Bxd4 Rxd4 20. Qf3 Rc8 21. a3 Ne8 22. Qe3 Bxb3 0-1

[Event "Florencia op"]
[Site "Florencia"]
[Date "2015.12.04"]
[Round "1"]
[White "Rivera, Alberto"]
[Black "Toledo, Hernan Dario"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2344"]
[BlackElo "1644"]
[PlyCount "28"]
[EventDate "2015.12.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 169 Extra"]
[Source "ChessBase"]
[SourceDate "2015.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.12.18"]
[SourceQuality "1"]

1. e4 c6 2. c4 g6 3. d4 Bg7 4. Nc3 e5 5. dxe5 Bxe5 6. Nf3 Bg7 7. Bf4 Na6 8. Be3 Ne7 9. Bd3 0-0 10. 0-0 Re8 11. Qd2 Nc7 12. Rfe1 d6 13. Rad1 b6 14. c5 Ned5 1-0

[Event "Bogota University op 9th"]
[Site "Bogota"]
[Date "2015.10.12"]
[Round "9"]
[White "Rivera, Alberto"]
[Black "Hernandez, Cristian Andres"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2344"]
[BlackElo "2258"]
[PlyCount "70"]
[EventDate "2015.10.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. Bxc6+ bxc6 5. 0-0 e5 6. Re1 Nf6 7. c3 Be7 8. d4 cxd4 9. cxd4 Qc7 10. h3 h6 11. Nc3 0-0 12. Be3 Re8 13. Rc1 Qb8 14. Qc2 exd4 15. Nxd4 Bd7 16. Rcd1 Bd8 17. Bf4 Bc7 18. Bh2 a5 19. b3 Qb4 20. Qd3 Rad8 21. Nc2 Qb8 22. Re3 Bc8 23. Nd4 Qa8 24. Qc2 Bb6 25. Na4 Bxd4 26. Rxd4 d5 27. Bc7 Rd7 28. Nb6 Qa7 29. Nxd7 Nxd7 30. exd5 Rxe3 31. fxe3 Qxc7 32. Qxc6 Qd8 33. Rc4 Nb6 34. Rc5 Qg5 35. Rc4 Qd8 1/2-1/2

[Event "Bogota University op 9th"]
[Site "Bogota"]
[Date "2015.10.11"]
[Round "7"]
[White "Rivera, Alberto"]
[Black "Vasquez Schroder, Rodrigo Rafael"]
[Result "1/2-1/2"]
[ECO "E11"]
[WhiteElo "2344"]
[BlackElo "2538"]
[PlyCount "157"]
[EventDate "2015.10.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Bg2 Bxd2+ 7. Nbxd2 d6 8. 0-0 a5 9. e4 e5 10. d5 Nb8 11. Qc2 0-0 12. Nb1 Na6 13. Nc3 Bd7 14. Ne1 c6 15. Nd3 cxd5 16. cxd5 b5 17. Rfc1 Rfc8 18. Qd2 b4 19. Nd1 Bb5 20. Ne3 g6 21. f3 Ne8 22. Nf2 Nc5 23. Bf1 Bxf1 24. Kxf1 Ng7 25. Nd3 Nb7 26. Rc6 Nd8 27. Rc4 f5 28. Rac1 Rxc4 29. Nxc4 fxe4 30. fxe4 Nh5 31. Kg2 Nf6 32. Qe3 Nf7 33. Nf2 Rc8 34. Nxa5 Rxc1 35. Qxc1 Qa7 36. Nc6 Qxa2 37. Nxb4 Qb3 38. Nc6 h6 39. h4 Kg7 40. Qc3 Qb6 41. Qc2 Qe3 42. b4 Kf8 43. b5 Nd7 44. Qd3 Qc5 45. Qf3 Kg7 46. Qb3 h5 47. Qa4 Qe3 48. Qa7 Qxa7 49. Nxa7 Nd8 50. Nd3 Nb7 51. Kf3 Nb6 52. Nc6 Nc4 53. Na7 Kf7 54. Nf2 Nc5 55. Ke2 Ke8 56. g4 Kd7 57. gxh5 gxh5 58. Kf3 Kc7 59. Nc6 Kb6 60. Ne7 Nd7 61. Nh1 Nf6 62. Ng3 Kxb5 63. Nef5 Kc5 64. Ke2 Nb6 65. Kd3 Nbd7 66. Ng7 Nf8 67. N3xh5 Nxh5 68. Nxh5 Ng6 69. Ng7 Nxh4 70. Kc3 Nf3 71. Ne6+ Kb5 72. Nc7+ Kb6 73. Ne6 Nh2 74. Kc4 Ng4 75. Kd3 Nf6 76. Nd8 Nd7 77. Ke3 Nc5 78. Nf7 Kc7 79. Ng5 1/2-1/2

[Event "Bogota University op 9th"]
[Site "Bogota"]
[Date "2015.10.11"]
[Round "8"]
[White "Vittorino, Carlo Giovanni"]
[Black "Rivera, Alberto"]
[Result "1-0"]
[ECO "A31"]
[WhiteElo "2275"]
[BlackElo "2344"]
[PlyCount "55"]
[EventDate "2015.10.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nc6 3. Nf3 Nf6 4. g3 g6 5. d4 cxd4 6. Nxd4 Nxd4 7. Qxd4 d6 8. Bg5 Bg7 9. Nd5 0-0 10. Bxf6 exf6 11. Qd2 Rb8 12. Bg2 f5 13. Rc1 Be6 14. 0-0 Bxd5 15. Bxd5 Qb6 16. Rc2 Bd4 17. b4 Rfe8 18. e3 Be5 19. a4 a6 20. a5 Qc7 21. Ra2 Rec8 22. Rb1 Kg7 23. b5 Qd8 24. Ra3 Rc5 25. Rab3 axb5 26. Rxb5 Rxb5 27. Rxb5 Qf6 28. a6 1-0

[Event "Bogota University op 9th"]
[Site "Bogota"]
[Date "2015.10.10"]
[Round "5"]
[White "Jimenez, Jose Mauricio"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "A07"]
[WhiteElo "2274"]
[BlackElo "2344"]
[PlyCount "102"]
[EventDate "2015.10.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. b3 Bg4 5. Bb2 Nbd7 6. h3 Bxf3 7. Bxf3 e6 8. 0-0 Bd6 9. c4 0-0 10. Qc2 Qe7 11. d4 a5 12. a3 h5 13. Bg2 Rfc8 14. c5 Bc7 15. f4 b6 16. b4 axb4 17. axb4 Rxa1 18. Bxa1 bxc5 19. bxc5 Ra8 20. Bb2 Qd8 21. Nd2 Qb8 22. e3 g6 23. Bf3 Ba5 24. Rf2 Kf8 25. g4 hxg4 26. hxg4 g5 27. Nf1 gxf4 28. exf4 Be1 29. Rg2 Qxf4 30. Qd1 Bb4 31. Bc1 Qc7 32. Bh6+ Ke7 33. Qc1 Rg8 34. Bf4 e5 35. Bh2 Qa5 36. g5 Ne4 37. Bxe4 dxe4 38. Qe3 Bc3 39. Bxe5 Nxe5 40. dxe5 Qb4 41. Kh1 Bxe5 42. Re2 Kf8 43. Rd2 Qc4 44. Re2 Qe6 45. Rg2 Qf5 46. Nh2 Rh8 47. Kg1 Rh3 48. Qd2 Bxh2+ 49. Rxh2 Qxc5+ 50. Kf1 Rxh2 51. Qxh2 Qc1+ 0-1

[Event "Bogota University op 9th"]
[Site "Bogota"]
[Date "2015.10.10"]
[Round "6"]
[White "Rivera, Alberto"]
[Black "Bosch Garcia, Jacqueline"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2344"]
[BlackElo "2153"]
[PlyCount "99"]
[EventDate "2015.10.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 c6 4. Qa4 Nbd7 5. cxd5 Nb6 6. Qb3 cxd5 7. Bf4 e6 8. Nc3 a6 9. e3 Bd6 10. Bxd6 Qxd6 11. Bd3 0-0 12. 0-0 Nbd7 13. a4 b6 14. Rac1 Bb7 15. Rc2 Rac8 16. Rfc1 Qb8 17. h3 Rfd8 18. Qa3 h6 19. a5 b5 20. Qb4 Ne8 21. b3 Qd6 22. Na2 Rxc2 23. Rxc2 Rc8 24. Qxd6 Nxd6 25. Ne5 Rxc2 26. Bxc2 Nxe5 27. dxe5 Nc8 28. Kf1 Ne7 29. Nb4 Nc6 30. Nxc6 Bxc6 31. Ke2 Kf8 32. Kd3 Ke7 33. Kd4 Kd7 34. g3 g6 35. f4 Kc7 36. h4 Bd7 37. Kc5 b4 38. Bd3 Bc8 39. Kxb4 Kc6 40. Kc3 Kc5 41. b4+ Kc6 42. Kd4 Bb7 43. h5 gxh5 44. e4 Bc8 45. exd5+ exd5 46. f5 Bb7 47. Be2 h4 48. gxh4 Bc8 49. f6 Kc7 50. Kxd5 1-0

[Event "Bogota University op 9th"]
[Site "Bogota"]
[Date "2015.10.09"]
[Round "4"]
[White "Almanza, Rafael Andres"]
[Black "Rivera, Alberto"]
[Result "1/2-1/2"]
[ECO "C91"]
[WhiteElo "2189"]
[BlackElo "2344"]
[PlyCount "62"]
[EventDate "2015.10.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. d4 Bg4 10. Be3 exd4 11. cxd4 Na5 12. Bc2 c5 13. Nbd2 Nc6 14. d5 Ne5 15. h3 Nxf3+ 16. Nxf3 Bh5 17. a4 Nd7 18. g4 Bg6 19. b4 Bf6 20. Rb1 Bc3 21. Bd2 cxb4 22. Bxc3 bxc3 23. axb5 axb5 24. Nd4 Re8 25. Nb3 Nc5 26. f3 h5 27. Qd4 Ra2 28. Re2 Qa8 29. Qxc3 Ra3 30. Kg2 Rc8 31. Rf2 Nd7 1/2-1/2

[Event "Bogota University op 9th"]
[Site "Bogota"]
[Date "2015.10.08"]
[Round "2"]
[White "Abril Guiza, Mauricio"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "2039"]
[BlackElo "2344"]
[PlyCount "101"]
[EventDate "2015.10.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 c5 3. e3 Qb6 4. Nc3 a6 5. a3 cxd4 6. exd4 d5 7. Bd3 Bg4 8. f3 Bh5 9. Nge2 e6 10. 0-0 Nc6 11. Kh1 Bg6 12. Na4 Qa7 13. b4 Be7 14. Nb2 0-0 15. c3 Rac8 16. Ng3 Nb8 17. Qd2 Nbd7 18. Na4 Bxd3 19. Qxd3 Nb6 20. Nxb6 Qxb6 21. a4 Qc6 22. Rfc1 Qd7 23. Ne2 Rc4 24. g4 Rfc8 25. Rcb1 b6 26. h3 Ne8 27. Kg2 Qb7 28. a5 b5 29. h4 Bd6 30. Bd2 Bb8 31. Rh1 R4c6 32. Rad1 Nd6 33. h5 Qe7 34. Rh3 Nc4 35. Bc1 Rd8 36. Re1 Rf8 37. Ng3 Bxg3 38. Rxg3 Rfc8 39. g5 Nd6 40. Bd2 Qd7 41. g6 fxg6 42. hxg6 h6 43. Rh1 Nf5 44. Rgh3 Qe8 45. Kf2 Qxg6 46. Rg1 Qf6 47. Bxh6 Nxh6 48. Rg6 Qf5 49. Rxg7+ Kxg7 50. Rg3+ Kh7 51. Rg1 0-1

[Event "Bogota University op 9th"]
[Site "Bogota"]
[Date "2015.10.08"]
[Round "1"]
[White "Rivera, Alberto"]
[Black "Riascos, Guillermo"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "2344"]
[BlackElo "1838"]
[PlyCount "69"]
[EventDate "2015.10.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 c6 4. g3 d5 5. Qc2 Nbd7 6. Bg2 h6 7. 0-0 Bd6 8. Nbd2 0-0 9. e4 dxe4 10. Nxe4 Nxe4 11. Qxe4 Nf6 12. Qe2 Qc7 13. c5 Be7 14. Bf4 Qd8 15. Rfd1 Nd5 16. Bd2 a5 17. Ne5 Bf6 18. Rac1 Qc7 19. Be4 Bxe5 20. dxe5 f5 21. exf6 Nxf6 22. Bf4 Qf7 23. Bg2 Nd5 24. Be5 Bd7 25. Rc4 Qe8 26. Bh3 Rf7 27. Bg4 Kh7 28. Bh5 g6 29. Bxg6+ Kxg6 30. Rg4+ Kh7 31. Qe4+ Rf5 32. Rg7+ Kh8 33. g4 a4 34. gxf5 exf5 35. Qh4 1-0

[Event "Medellin Flores op 22nd"]
[Site "Medellin"]
[Date "2015.08.09"]
[Round "8"]
[White "Castaneda Jimenez, Jhon David"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "D27"]
[WhiteElo "2211"]
[BlackElo "2339"]
[PlyCount "96"]
[EventDate "2015.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. 0-0 a6 7. Bb3 Nbd7 8. Qe2 b5 9. e4 Bb7 10. e5 Nd5 11. Nc3 N7b6 12. Ne4 c4 13. Bg5 Qd7 14. Bc2 h6 15. Bd2 Rc8 16. a3 Be7 17. Qe1 Qc6 18. Qe2 Nd7 19. h4 Qb6 20. Rfd1 Bc6 21. h5 Nf8 22. Nh2 Nh7 23. Bc1 Ng5 24. Ng3 Kd7 25. f4 Nh7 26. Kh1 Kc7 27. Be4 Kb7 28. Qg4 Rcg8 29. f5 Nc7 30. Be3 Bxe4 31. Nxe4 Nd5 32. Bf2 Ng5 33. Nf3 exf5 34. Qxf5 Qe6 35. Ng3 g6 36. Qxe6 fxe6 37. Nd2 Rf8 38. Kg1 Rhg8 39. Nde4 Nxe4 40. Nxe4 gxh5 41. Rd2 Rg4 42. Re1 Nf4 43. g3 Nd3 44. Re3 h4 45. Kg2 h5 46. Ree2 Nf4+ 47. Kh2 Nxe2 48. Rxe2 Rxe4 0-1

[Event "Medellin Flores op 22nd"]
[Site "Medellin"]
[Date "2015.08.08"]
[Round "6"]
[White "Agudelo, Carlos Hernan"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "D58"]
[WhiteElo "2077"]
[BlackElo "2339"]
[PlyCount "104"]
[EventDate "2015.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 Be7 5. Nc3 h6 6. Bh4 0-0 7. e3 b6 8. Be2 Bb7 9. Bxf6 Bxf6 10. cxd5 exd5 11. 0-0 a6 12. b4 Qd6 13. Qb3 Nd7 14. Rfd1 Rfe8 15. Ne1 Be7 16. b5 a5 17. Nd3 Nf6 18. Nf4 Rad8 19. Rac1 Qd7 20. Bf3 g5 21. Nd3 Bd6 22. g3 Qf5 23. Bg2 Kg7 24. Qc2 Re7 25. Ne5 Qxc2 26. Rxc2 Bxe5 27. dxe5 Rxe5 28. Rcd2 Rd6 29. e4 Nxe4 30. Bxe4 dxe4 31. Rxd6 cxd6 32. Rxd6 e3 33. fxe3 Rxe3 34. Rxb6 Bf3 35. Na4 Ra3 36. Kf2 Bg4 37. Nc5 Rxa2+ 38. Ke3 Rxh2 39. Rc6 Re2+ 40. Kd4 Rb2 41. b6 Bf3 42. Rd6 Bg2 43. Nd3 Rb1 44. Kc5 h5 45. Rd4 Kf6 46. Nf2 Ke6 47. Ne4 Rc1+ 48. Kb5 Ke5 49. Nd2 Bc6+ 50. Ka6 Kxd4 51. Nb3+ Kc4 52. Nxc1 a4 0-1

[Event "Medellin Flores op 22nd"]
[Site "Medellin"]
[Date "2015.08.08"]
[Round "7"]
[White "Rivera, Alberto"]
[Black "Munoz, Farid"]
[Result "1-0"]
[ECO "A87"]
[WhiteElo "2339"]
[BlackElo "2126"]
[PlyCount "57"]
[EventDate "2015.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. c4 d6 5. Nf3 Bg7 6. Nc3 0-0 7. 0-0 Qe8 8. Re1 Nc6 9. d5 Ne5 10. Nd2 g5 11. Nb5 f4 12. Nxc7 Qh5 13. Nf1 fxg3 14. hxg3 Nfg4 15. f3 Rf6 16. Nxa8 Rh6 17. Nc7 Nh2 18. Ne6 Bxe6 19. dxe6 Nxf1 20. Kxf1 Qh2 21. Bxg5 Rh5 22. Bf4 Ng6 23. Qd2 Rf5 24. e3 Ne5 25. Kf2 Qh5 26. b3 Qg6 27. Rad1 Bf6 28. Rh1 h5 29. Bh3 1-0

[Event "Medellin Flores op 22nd"]
[Site "Medellin"]
[Date "2015.08.07"]
[Round "4"]
[White "Arismendi Polanco, Efrain Steven"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "B42"]
[WhiteElo "1873"]
[BlackElo "2339"]
[PlyCount "74"]
[EventDate "2015.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nc6 6. Be3 Nf6 7. 0-0 d6 8. Nxc6 bxc6 9. c4 e5 10. h3 Be7 11. Nc3 0-0 12. f4 Bb7 13. Qe2 a5 14. b3 Nd7 15. f5 Nc5 16. Rf3 Bg5 17. Bxg5 Qxg5 18. f6 g6 19. Raf1 Ne6 20. Qe1 Nf4 21. Qg3 Qxf6 22. Ne2 Nxe2+ 23. Bxe2 Qe7 24. Rd3 c5 25. Bf3 a4 26. Rfd1 axb3 27. axb3 Ra6 28. b4 cxb4 29. c5 d5 30. exd5 Qxc5+ 31. Kh2 Qd6 32. Re3 Re8 33. Rde1 f6 34. Be4 Kh8 35. Kh1 Rb6 36. Qf2 f5 37. Bb1 e4 0-1

[Event "Medellin Flores op 22nd"]
[Site "Medellin"]
[Date "2015.08.07"]
[Round "5"]
[White "Rivera, Alberto"]
[Black "Marin, Alejandro"]
[Result "1-0"]
[ECO "D55"]
[WhiteElo "2339"]
[BlackElo "1998"]
[PlyCount "101"]
[EventDate "2015.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Bg5 Be7 5. Nc3 c6 6. e3 h6 7. Bxf6 Bxf6 8. Bd3 Nd7 9. 0-0 0-0 10. Rc1 dxc4 11. Bxc4 e5 12. h3 exd4 13. exd4 Nb6 14. Bb3 Bf5 15. Re1 Re8 16. Rxe8+ Qxe8 17. Qd2 Qd7 18. Rd1 Rd8 19. Qf4 g5 20. Qg3 Nd5 21. Ne5 Qe7 22. Nxd5 cxd5 23. Re1 Qb4 24. Qc3 Qxc3 25. bxc3 Be6 26. Re3 Rc8 27. Kf1 Bd8 28. Ke2 Ba5 29. Kd2 b5 30. a3 Bd8 31. Kc2 Be7 32. Kb2 a5 33. Re1 Kg7 34. Ng4 b4 35. cxb4 axb4 36. a4 h5 37. Ne5 Bd6 38. a5 Kf6 39. Nd3 Bc7 40. Ra1 Ra8 41. a6 Bb6 42. Nc5 Ke7 43. Bd1 Bc8 44. Bxh5 f5 45. Be2 Kd6 46. Rc1 Bxc5 47. Rxc5 Bxa6 48. Ra5 Bb7 49. Rxa8 Bxa8 50. Kb3 Bc6 51. g3 1-0

[Event "Bogota La Florida-ch"]
[Site "Bogota"]
[Date "2015.07.10"]
[Round "9"]
[White "Moreno, Cristhian"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "E20"]
[BlackElo "2333"]
[PlyCount "54"]
[EventDate "2015.07.06"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 0-0 5. e4 d5 6. e5 Nfd7 7. cxd5 exd5 8. a3 Bxc3+ 9. bxc3 f6 10. f4 fxe5 11. dxe5 Nxe5 12. fxe5 Qh4+ 13. Kd2 Qf4+ 14. Kc2 Qa4+ 15. Kd2 Qxd1+ 16. Kxd1 Rxf1+ 17. Ke2 Rf7 18. Nf3 Bg4 19. Rd1 Nc6 20. Rxd5 Re8 21. h3 Bxf3+ 22. gxf3 Nxe5 23. f4 Ng6+ 24. Kf3 Re1 25. Rd8+ Rf8 26. Rd7 Ne5+ 27. Kf2 Rxc1 0-1

[Event "Bogota La Florida-ch"]
[Site "Bogota"]
[Date "2015.07.09"]
[Round "7"]
[White "Castillo, Jorge"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "C03"]
[WhiteElo "2087"]
[BlackElo "2333"]
[PlyCount "48"]
[EventDate "2015.07.06"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 a6 4. e5 c5 5. c3 Nc6 6. Ne2 Qb6 7. Nf3 Bd7 8. Ng3 Nge7 9. Be2 h5 10. dxc5 Qxc5 11. Be3 Qa5 12. h4 Ng6 13. 0-0 Be7 14. Bd3 Ngxe5 15. Nxe5 Nxe5 16. Nxh5 Nxd3 17. Nxg7+ Kf8 18. Qxd3 Kxg7 19. Bd4+ f6 20. f4 Rag8 21. Rae1 Kf7 22. c4 dxc4 23. Qxc4 Qd5 24. Qxd5 exd5 0-1

[Event "Bogota La Florida-ch"]
[Site "Bogota"]
[Date "2015.07.09"]
[Round "8"]
[White "Rivera, Alberto"]
[Black "Castillo, Fredy Arbey"]
[Result "1/2-1/2"]
[ECO "E61"]
[WhiteElo "2333"]
[PlyCount "82"]
[EventDate "2015.07.06"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. c4 0-0 6. Be2 Nbd7 7. Nc3 b6 8. 0-0 Bb7 9. Qc2 Nh5 10. Bg5 h6 11. Bh4 g5 12. Nd2 Ndf6 13. Bg3 Nxg3 14. hxg3 e5 15. d5 Bc8 16. f3 Nh5 17. g4 Ng3 18. Rfe1 f5 19. gxf5 Bxf5 20. Bd3 g4 21. Bxf5 Rxf5 22. Nce4 gxf3 23. Nxf3 Nxe4 24. Qxe4 Qd7 25. a4 a5 26. Rf1 Raf8 27. b3 Qf7 28. Ra2 Qh5 29. Raf2 R8f6 30. g4 Qg6 31. Nh4 Rxf2 32. Nxg6 Rxf1+ 33. Kg2 R6f2+ 34. Kg3 Rb2 35. Ne7+ Kf7 36. Qg6+ Kxe7 37. Qxg7+ Kd8 38. Qg8+ Kd7 39. Qe6+ Kd8 40. Qg8+ Kd7 41. Qe6+ Kd8 1/2-1/2

[Event "Bogota La Florida-ch"]
[Site "Bogota"]
[Date "2015.07.08"]
[Round "5"]
[White "Pena, Hernando"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "D93"]
[WhiteElo "2074"]
[BlackElo "2333"]
[PlyCount "62"]
[EventDate "2015.07.06"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. Rc1 0-0 6. e3 dxc4 7. Bxc4 c5 8. Nf3 Nc6 9. dxc5 Qa5 10. 0-0 Qxc5 11. Nb5 Be6 12. Nc7 Bxc4 13. Nxa8 Ne4 14. Nd2 Nxd2 15. Qxd2 e5 16. Bg3 Rc8 17. b3 Qd5 18. Rfd1 Qxd2 19. Rxd2 Be6 20. Nc7 Rxc7 21. Rd8+ Nxd8 22. Rxc7 Kf8 23. Bh4 f6 24. Bg3 Bf7 25. f3 Ke8 26. Be1 Bf8 27. Ba5 Bd6 28. Rc8 b6 29. Bc3 Bd5 30. e4 Bb7 31. Rc4 b5 0-1

[Event "Bogota La Florida-ch"]
[Site "Bogota"]
[Date "2015.07.08"]
[Round "6"]
[White "Rivera, Alberto"]
[Black "Beltran Rodriguez, Omar Jose"]
[Result "1-0"]
[ECO "D01"]
[WhiteElo "2333"]
[PlyCount "85"]
[EventDate "2015.07.06"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 Bf5 4. e3 e6 5. Bd3 c6 6. Nf3 h6 7. Bh4 Nbd7 8. 0-0 Bd6 9. Bg3 Qc7 10. Re1 0-0 11. e4 dxe4 12. Nxe4 Nxe4 13. Bxe4 Bxe4 14. Rxe4 Bxg3 15. hxg3 c5 16. c3 cxd4 17. Nxd4 Nf6 18. Re1 Rfd8 19. Qb3 Rd5 20. Re2 Rad8 21. Rae1 e5 22. Nf5 e4 23. Ne3 Rd2 24. Rxd2 Rxd2 25. Rd1 Rxd1+ 26. Qxd1 Kf8 27. Qd4 a6 28. a4 b5 29. axb5 axb5 30. Qb4+ Kg8 31. Qxb5 Qd6 32. Qe2 Qb6 33. Qd2 Qb3 34. Nf5 Qb8 35. b4 Qc8 36. Ne3 Nd7 37. c4 Ne5 38. Qd4 Nd3 39. b5 Qa8 40. b6 Qa2 41. Nf5 Qb1+ 42. Kh2 f6 43. Qd7 1-0

[Event "Bogota La Florida-ch"]
[Site "Bogota"]
[Date "2015.07.07"]
[Round "3"]
[White "Rivera, Alberto"]
[Black "Jaimes, Fernando"]
[Result "1-0"]
[ECO "A35"]
[WhiteElo "2333"]
[BlackElo "2073"]
[PlyCount "47"]
[EventDate "2015.07.06"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nc6 3. Nc3 g6 4. e3 Bg7 5. d4 cxd4 6. exd4 d6 7. d5 Nb8 8. Be2 Nf6 9. 0-0 Nbd7 10. Nd4 0-0 11. Be3 a6 12. h3 Nb6 13. b3 e5 14. dxe6 fxe6 15. Rc1 e5 16. Nc2 Be6 17. Bf3 Qc7 18. Nb4 Rad8 19. Qd2 Kh8 20. Rfd1 Rfe8 21. Ne4 Nxe4 22. Bxe4 Rf8 23. Nd5 Bxd5 24. cxd5 1-0

[Event "Bogota La Florida-ch"]
[Site "Bogota"]
[Date "2015.07.07"]
[Round "4"]
[White "Rivera, Alberto"]
[Black "Ruiz Castillo, Joshua Daniel"]
[Result "0-1"]
[ECO "E15"]
[WhiteElo "2333"]
[BlackElo "2390"]
[PlyCount "76"]
[EventDate "2015.07.06"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Qb3 Nc6 6. Nbd2 d5 7. cxd5 Qxd5 8. e3 Qxb3 9. Nxb3 Bb7 10. Bg2 Bd6 11. 0-0 0-0 12. Bd2 a5 13. Rac1 a4 14. Na1 a3 15. b3 Ne7 16. Nc2 Ne4 17. Rfd1 f6 18. Be1 Nd5 19. Nh4 f5 20. Na1 Ba6 21. Bf1 Bxf1 22. Kxf1 g5 23. Nf3 g4 24. Ne5 Bxe5 25. dxe5 c5 26. Ke2 Kf7 27. f3 gxf3+ 28. Kxf3 b5 29. g4 Kg6 30. gxf5+ Kxf5 31. Bg3 Ndc3 32. Rf1 Nxa2 33. Ke2+ Kg4 34. Rce1 Nac3+ 35. Kd3 Rad8+ 36. Kc2 Rd2+ 37. Kc1 Na2+ 38. Kb1 Nec3# 0-1

[Event "Bogota La Florida-ch"]
[Site "Bogota"]
[Date "2015.07.06"]
[Round "2"]
[White "Jaimes Castillo, Fabian"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "E15"]
[WhiteElo "2059"]
[BlackElo "2333"]
[PlyCount "68"]
[EventDate "2015.07.06"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 0-0 8. 0-0 c6 9. Re1 d5 10. Nc3 dxc4 11. Ne5 Qxd4 12. Nxc4 Bxc4 13. bxc4 Rd8 14. Nb5 cxb5 15. Bxa8 Qxd2 16. Qxd2 Rxd2 17. cxb5 Nbd7 18. Bc6 Nc5 19. a4 g5 20. a5 Nfe4 21. axb6 axb6 22. Ra6 Nc3 23. Rxb6 Nxe2+ 24. Kf1 Nd4 25. Be4 Kg7 26. Rb8 f5 27. Bb1 Nf3 28. Rc1 Nxh2+ 29. Kg2 Ng4 30. b6 Rxf2+ 31. Kg1 Rb2 32. Rd1 Ne3 33. Re1 Bd6 34. Rd8 Bxg3 0-1

[Event "Bogota La Florida-ch"]
[Site "Bogota"]
[Date "2015.07.06"]
[Round "1"]
[White "Rivera, Alberto"]
[Black "Sotomonte, Lorena"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2333"]
[BlackElo "1973"]
[PlyCount "49"]
[EventDate "2015.07.06"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Be7 7. Bd3 Nbd7 8. Nf3 0-0 9. Qc2 Re8 10. 0-0 Nf8 11. h3 Ne4 12. Bf4 Nxc3 13. bxc3 Ng6 14. Bh2 Bd6 15. Bxd6 Qxd6 16. c4 dxc4 17. Bxc4 Ne7 18. Ne5 Be6 19. Rab1 b6 20. Bd3 h6 21. Be4 Rac8 22. Qa4 c5 23. Rfd1 cxd4 24. exd4 Rc7 25. Qxe8# 1-0

[Event "Ortega op 5th"]
[Site "Ortega"]
[Date "2015.06.15"]
[Round "7"]
[White "Rivera, Alberto"]
[Black "Remicio Duque, John H"]
[Result "0-1"]
[ECO "D19"]
[WhiteElo "2345"]
[BlackElo "2028"]
[PlyCount "32"]
[EventDate "2015.06.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 167 Extra"]
[Source "ChessBase"]
[SourceDate "2015.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2015.09.14"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. 0-0 0-0 9. Qe2 Nbd7 10. Rd1 Bxc3 11. bxc3 Qc7 12. Nd2 Rfd8 13. e4 Bg6 14. f3 e5 15. Nf1 Nb6 16. dxe5 Rxd1 0-1

[Event "Ortega op 5th"]
[Site "Ortega"]
[Date "2015.06.14"]
[Round "5"]
[White "Rivera, Alberto"]
[Black "Jimenez, Jose Mauricio"]
[Result "0-1"]
[ECO "E18"]
[WhiteElo "2345"]
[BlackElo "2219"]
[PlyCount "103"]
[EventDate "2015.06.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 167 Extra"]
[Source "ChessBase"]
[SourceDate "2015.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2015.09.14"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 Be7 6. g3 0-0 7. Bg2 Ne4 8. Nxe4 Bxe4 9. 0-0 d6 10. Re1 Nd7 11. Bh3 Bf6 12. Nd2 Bb7 13. d5 exd5 14. Bg2 Nc5 15. cxd5 a5 16. Ne4 Nxe4 17. Bxe4 a4 18. Rb1 g6 19. Bg2 Re8 20. e4 Qd7 21. Be3 Re7 22. Qd2 Qb5 23. f4 Qb3 24. Bf2 Rae8 25. h3 Ba6 26. Re3 Qa2 27. Qd1 Bc4 28. Qc1 Bd4 29. Rf3 Bg7 30. Re3 Bxd5 31. exd5 Rxe3 32. Bxe3 Rxe3 33. Qxe3 Qxb1+ 34. Kh2 Bxb2 35. Qe8+ Kg7 36. Qxa4 Qa1 37. Qd7 Bxa3 38. Qxc7 Bc5 39. h4 h5 40. f5 gxf5 41. Qe7 Qg1+ 42. Kh3 Qe3 43. Qxe3 Bxe3 44. Bf3 Kg6 45. Be2 f4 46. g4 hxg4+ 47. Kxg4 f5+ 48. Kf3 Kh5 49. Bd3 Kxh4 50. Bxf5 b5 51. Bd7 b4 52. Ba4 0-1

[Event "Ortega op 5th"]
[Site "Ortega"]
[Date "2015.06.13"]
[Round "4"]
[White "Rios Parra, Mauricio Flores"]
[Black "Rivera, Alberto"]
[Result "1/2-1/2"]
[ECO "C68"]
[WhiteElo "2320"]
[BlackElo "2345"]
[PlyCount "37"]
[EventDate "2015.06.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 167 Extra"]
[Source "ChessBase"]
[SourceDate "2015.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2015.09.14"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. Nc3 f6 6. d4 exd4 7. Nxd4 c5 8. Nde2 Qxd1+ 9. Nxd1 Be6 10. Bf4 0-0-0 11. Ne3 Ne7 12. Rd1 Rxd1+ 13. Kxd1 Ng6 14. Bg3 Ne5 15. Bxe5 fxe5 16. Nc3 g6 17. Ke2 c6 18. a4 b6 19. b3 1/2-1/2

[Event "COL-chT Cup"]
[Site "Bogota"]
[Date "2015.06.08"]
[Round "5.3"]
[White "Rios Parra, Mauricio Flores"]
[Black "Rivera, Alberto"]
[Result "1/2-1/2"]
[ECO "A12"]
[WhiteElo "2320"]
[BlackElo "2345"]
[PlyCount "28"]
[EventDate "2015.06.06"]
[EventType "team-swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "CBM 166 Extra"]
[Source "ChessBase"]
[SourceDate "2015.06.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.06.18"]
[SourceQuality "1"]
[WhiteTeam "Meta www.reinosdelajedrez"]
[BlackTeam "Bogota"]
[WhiteTeamCountry "COL"]
[BlackTeamCountry "COL"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 Bg4 4. 0-0 c6 5. c4 e6 6. b3 Nbd7 7. Bb2 Bd6 8. d3 Qe7 9. Nc3 a6 10. cxd5 cxd5 11. Rc1 0-0 12. h3 Bh5 13. Qd2 Rac8 14. Nb1 Bb4 1/2-1/2

[Event "COL-chT Cup"]
[Site "Bogota"]
[Date "2015.06.07"]
[Round "4.3"]
[White "Rivera, Alberto"]
[Black "Vasquez Garrido, Nuremberg Adin"]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "2345"]
[BlackElo "2036"]
[PlyCount "79"]
[EventDate "2015.06.06"]
[EventType "team-swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "CBM 166 Extra"]
[Source "ChessBase"]
[SourceDate "2015.06.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.06.18"]
[SourceQuality "1"]
[WhiteTeam "Bogota"]
[BlackTeam "Cesar"]
[WhiteTeamCountry "COL"]
[BlackTeamCountry "COL"]

1. d4 Nf6 2. Nf3 c5 3. d5 d6 4. c4 b5 5. Qc2 g6 6. e4 Nbd7 7. cxb5 a6 8. Nc3 Bg7 9. Be2 axb5 10. Bxb5 0-0 11. 0-0 Ba6 12. a4 Ne8 13. Bf4 Nc7 14. Rfe1 Rb8 15. Qd3 Bxb5 16. axb5 Bxc3 17. bxc3 Rxb5 18. c4 Rb4 19. Bd2 Rb7 20. Bh6 Re8 21. e5 dxe5 22. Nxe5 Nxe5 23. Rxe5 Qd6 24. Rae1 Na6 25. h4 Nb8 26. Qc3 e6 27. Rf5 e5 28. Rfxe5 Rxe5 29. Qxe5 Qxe5 30. Rxe5 f6 31. Re8+ Kf7 32. Rf8+ Ke7 33. Rh8 Rb1+ 34. Kh2 Nd7 35. Rxh7+ Kd6 36. Bf4+ Ne5 37. Rf7 Re1 38. Rxf6+ Kd7 39. Bxe5 Rxe5 40. Rc6 1-0

[Event "COL-chT Cup"]
[Site "Bogota"]
[Date "2015.06.07"]
[Round "3.3"]
[White "Ruiz, Alciguel"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "A32"]
[WhiteElo "2220"]
[BlackElo "2345"]
[PlyCount "78"]
[EventDate "2015.06.06"]
[EventType "team-swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "CBM 166 Extra"]
[Source "ChessBase"]
[SourceDate "2015.06.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.06.18"]
[SourceQuality "1"]
[WhiteTeam "Bogota Sicoopweb"]
[BlackTeam "Bogota"]
[WhiteTeamCountry "COL"]
[BlackTeamCountry "COL"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. g3 a6 5. Bg2 cxd4 6. Nxd4 Qc7 7. b3 Bb4+ 8. Bd2 Be7 9. Nc3 d6 10. 0-0 Nc6 11. Nf3 0-0 12. Rc1 Rd8 13. Ne1 Ne5 14. Nd3 Rb8 15. Nxe5 dxe5 16. Qc2 b6 17. Bg5 h6 18. Bxf6 Bxf6 19. Rfd1 Bd7 20. Rd2 Be8 21. Rcd1 Rxd2 22. Rxd2 Be7 23. a4 Bb4 24. Rd3 b5 25. axb5 axb5 26. Nd1 Rc8 27. Ne3 f5 28. Qd1 e4 29. Rd4 Bc5 30. Rd2 Qb6 31. Qc2 Bxe3 32. fxe3 Qxe3+ 33. Kh1 bxc4 34. bxc4 Kh7 35. Rd6 Bb5 36. Qd2 Qxd2 37. Rxd2 Rxc4 38. h3 Rc1+ 39. Kh2 Re1 0-1

[Event "COL-chT Cup"]
[Site "Bogota"]
[Date "2015.06.06"]
[Round "1.2"]
[White "Rivera, Alberto"]
[Black "Torres Rojas, Yuber Andres"]
[Result "1-0"]
[ECO "D53"]
[WhiteElo "2345"]
[BlackElo "2000"]
[PlyCount "73"]
[EventDate "2015.06.06"]
[EventType "team-swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "CBM 166 Extra"]
[Source "ChessBase"]
[SourceDate "2015.06.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.06.18"]
[SourceQuality "1"]
[WhiteTeam "Bogota"]
[BlackTeam "Shabaku Cun"]
[WhiteTeamCountry "COL"]
[BlackTeamCountry "COL"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c6 5. e3 Be7 6. Nf3 h6 7. Bh4 0-0 8. Bd3 b6 9. 0-0 Bb7 10. Qe2 Nbd7 11. Rfd1 Rc8 12. Rac1 Nh7 13. Bg3 f5 14. cxd5 exd5 15. Ba6 Bxa6 16. Qxa6 Ra8 17. Ne2 c5 18. Nf4 Nhf6 19. Qd3 Ne4 20. Ne6 c4 21. Nxd8 cxd3 22. Ne6 d2 23. Nxd2 Rf7 24. Nc7 Rc8 25. Nf3 Ndf6 26. Nxd5 Rxc1 27. Nxf6+ Bxf6 28. Rxc1 g5 29. Rc8+ Kg7 30. Be5 Rb7 31. Kf1 b5 32. Ke2 a5 33. Rc7+ Rxc7 34. Bxc7 a4 35. Nd2 Kg6 36. Nxe4 fxe4 37. g4 1-0

[Event "Bogota Distrital-ch 77th"]
[Site "Bogota"]
[Date "2015.05.03"]
[Round "6"]
[White "Vargas, Mauricio"]
[Black "Rivera, Alberto"]
[Result "1/2-1/2"]
[ECO "C16"]
[WhiteElo "2099"]
[BlackElo "2345"]
[PlyCount "79"]
[EventDate "2015.04.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 166 Extra"]
[Source "ChessBase"]
[SourceDate "2015.06.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.06.18"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 b6 5. Qg4 Bf8 6. h4 h5 7. Qg3 Qd7 8. Nge2 Ne7 9. Bg5 Nf5 10. Qd3 Ba6 11. Qd2 c5 12. Be3 cxd4 13. Nxd4 Nxd4 14. Bxd4 Bxf1 15. Rxf1 Nc6 16. Ne2 0-0-0 17. 0-0-0 Be7 18. g3 Kb7 19. Kb1 Qc7 20. f4 g6 21. Rc1 Rd7 22. Rfd1 Rc8 23. Ng1 Nxd4 24. Qxd4 Bc5 25. Qd3 Bxg1 26. Rxg1 Qc4 27. Rgd1 Rdc7 28. Qxc4 Rxc4 29. c3 b5 30. Kc2 b4 31. Kd2 bxc3+ 32. Rxc3 Rxc3 33. bxc3 Rc4 34. Rb1+ Kc7 35. Rb4 Rc5 36. Kd3 a5 37. Rb2 Rc4 38. a3 Ra4 39. Rb3 Re4 40. Rb1 1/2-1/2

[Event "Bogota Distrital-ch 77th"]
[Site "Bogota"]
[Date "2015.05.02"]
[Round "4"]
[White "Obando Guzman, Soren Federico"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "A69"]
[WhiteElo "1932"]
[BlackElo "2345"]
[PlyCount "66"]
[EventDate "2015.04.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 166 Extra"]
[Source "ChessBase"]
[SourceDate "2015.06.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.06.18"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 g6 6. Nc3 d6 7. Nd2 Nbd7 8. e4 Bg7 9. Be2 0-0 10. 0-0 Re8 11. f4 a6 12. a4 c4 13. Nxc4 Nxe4 14. Nxe4 Rxe4 15. Qc2 Re8 16. Kh1 Nf6 17. Bf3 Bf5 18. Qb3 Ne4 19. Be3 Rc8 20. Rac1 Nc5 21. Bxc5 Rxc5 22. Ne3 Rxc1 23. Rxc1 Qe7 24. Nf1 h5 25. h3 Bd4 26. Ng3 Qh4 27. Qd1 Bxh3 28. Qxd4 Bf5+ 29. Kg1 Qxg3 30. b4 h4 31. b5 axb5 32. axb5 h3 33. Rf1 Re2 0-1

[Event "Bogota Distrital-ch 77th"]
[Site "Bogota"]
[Date "2015.05.01"]
[Round "2"]
[White "Ramirez, Heimy Polgar"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "E38"]
[WhiteElo "2159"]
[BlackElo "2345"]
[PlyCount "60"]
[EventDate "2015.04.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 166 Extra"]
[Source "ChessBase"]
[SourceDate "2015.06.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.06.18"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. Nf3 cxd4 6. Nxd4 Be7 7. g3 a6 8. Bg2 Qc7 9. b3 0-0 10. 0-0 d6 11. Rd1 Nbd7 12. Bb2 Re8 13. Rd2 Ne5 14. Rad1 Bd7 15. e4 Rac8 16. a4 Red8 17. Ba3 Be8 18. Qb2 h5 19. h3 Kf8 20. Nde2 b6 21. f4 Nc6 22. Rd3 Na5 23. Nc1 Nb7 24. Qe2 Nc5 25. R3d2 g6 26. g4 hxg4 27. hxg4 Kg8 28. Bf3 Nxb3 29. Nxb3 Qxc4 30. Qxc4 Rxc4 0-1

[Event "Bogota Distrital-ch 77th"]
[Site "Bogota"]
[Date "2015.05.01"]
[Round "3"]
[White "Rivera, Alberto"]
[Black "Manrique, Fernando"]
[Result "1-0"]
[ECO "D27"]
[WhiteElo "2345"]
[BlackElo "1974"]
[PlyCount "25"]
[EventDate "2015.04.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 166 Extra"]
[Source "ChessBase"]
[SourceDate "2015.06.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.06.18"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c5 4. e3 cxd4 5. exd4 e6 6. Nc3 Be7 7. a3 dxc4 8. Bxc4 a6 9. 0-0 b5 10. Ba2 Bb7 11. Ne5 Nbd7 12. Qe2 Nb6 13. Nxf7 1-0

[Event "Bogota Distrital-ch 77th"]
[Site "Bogota"]
[Date "2015.04.30"]
[Round "1"]
[White "Rivera, Alberto"]
[Black "Dominguez Rincon, Miller Duvan"]
[Result "1-0"]
[ECO "D53"]
[WhiteElo "2345"]
[BlackElo "2105"]
[PlyCount "73"]
[EventDate "2015.04.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 166 Extra"]
[Source "ChessBase"]
[SourceDate "2015.06.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.06.18"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c6 5. e3 Nbd7 6. Nf3 Be7 7. Bd3 dxc4 8. Bxc4 b5 9. Bd3 a6 10. a4 Bb7 11. 0-0 0-0 12. Qe2 b4 13. Bxf6 gxf6 14. Ne4 f5 15. Ned2 c5 16. d5 Bxd5 17. Bxa6 Bf6 18. Rab1 Kh8 19. Bb5 Rg8 20. g3 Nb6 21. b3 Bb7 22. e4 fxe4 23. Nxe4 Nd5 24. Rfd1 Qe7 25. Rbc1 Bc3 26. Kf1 f5 27. Nxc3 Nxc3 28. Rxc3 bxc3 29. Rd7 Qf6 30. Rxb7 Rad8 31. Rc7 Rd5 32. Bc4 Qd8 33. Rc6 Rd1+ 34. Kg2 Rg6 35. Rxc5 Rd6 36. Qe5+ Kg8 37. Qxc3 1-0

[Event "Bogota Navidad op"]
[Site "Bogota"]
[Date "2014.12.08"]
[Round "8"]
[White "Arenas Vanegas, David"]
[Black "Rivera, Alberto"]
[Result "1/2-1/2"]
[ECO "C86"]
[WhiteElo "2435"]
[BlackElo "2324"]
[PlyCount "57"]
[EventDate "2014.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 163 Extra"]
[Source "ChessBase"]
[SourceDate "2014.12.23"]
[SourceVersion "1"]
[SourceVersionDate "2014.12.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Qe2 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. Rd1 0-0 11. d4 Qc7 12. d5 Nc4 13. a4 Bd7 14. b3 Na5 15. Nbd2 bxa4 16. bxa4 Rfb8 17. Ba3 Bc8 18. Rdb1 Nd7 19. Nb3 Nxb3 20. Bxb3 Ra7 21. Bc2 Rxb1+ 22. Rxb1 Rb7 23. Rxb7 Bxb7 24. Nd2 Qa5 25. Qc4 Nb6 26. Qb3 Bg5 27. Nf3 h6 28. h4 Bd8 29. g3 1/2-1/2

[Event "Bogota Navidad op"]
[Site "Bogota"]
[Date "2014.12.06"]
[Round "6"]
[White "Granda Zuniga, Julio E"]
[Black "Rivera, Alberto"]
[Result "0-1"]
[ECO "A39"]
[WhiteElo "2654"]
[BlackElo "2324"]
[PlyCount "40"]
[EventDate "2014.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 163 Extra"]
[Source "ChessBase"]
[SourceDate "2014.12.23"]
[SourceVersion "1"]
[SourceVersionDate "2014.12.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 c5 3. Bg2 Nc6 4. c4 g6 5. d4 cxd4 6. Nxd4 Nxd4 7. Qxd4 Bg7 8. 0-0 0-0 9. Nc3 d6 10. Qh4 Rb8 11. Bg5 Be6 12. Rab1 a6 13. Rfc1 b5 14. cxb5 axb5 15. Qb4 Qd7 16. b3 Rfc8 17. Bxf6 Bxf6 18. e3 Qa7 19. Ne4 Rxc1+ 20. Rxc1 Bb2 0-1

[Event "Bogota Navidad op"]
[Site "Bogota"]
[Date "2014.12.06"]
[Round "5"]
[White "Rivera, Alberto"]
[Black "Gonzalez Vidal, Yuri"]
[Result "1/2-1/2"]
[ECO "E12"]
[WhiteElo "2324"]
[BlackElo "2560"]
[PlyCount "45"]
[EventDate "2014.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 163 Extra"]
[Source "ChessBase"]
[SourceDate "2014.12.23"]
[SourceVersion "1"]
[SourceVersionDate "2014.12.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Ba6 5. Qa4 Bb7 6. Nc3 Be7 7. Bg5 0-0 8. e3 c5 9. dxc5 bxc5 10. Be2 d6 11. 0-0 Nbd7 12. Rfd1 Qb6 13. Qc2 Rfd8 14. Rab1 a6 15. h3 Nf8 16. Nd2 h6 17. Bxf6 Bxf6 18. Bf3 Bxf3 19. Nxf3 Rab8 20. Ne4 Be7 21. b4 cxb4 22. axb4 Qc7 23. Qa2 1/2-1/2

[Event "Bogota Navidad op"]
[Site "Bogota"]
[Date "2014.12.05"]
[Round "3"]
[White "Rivera, Alberto"]
[Black "Cerezo Najera, Jorge"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2324"]
[BlackElo "1881"]
[PlyCount "95"]
[EventDate "2014.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 163 Extra"]
[Source "ChessBase"]
[SourceDate "2014.12.23"]
[SourceVersion "1"]
[SourceVersionDate "2014.12.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 c5 4. Nc3 cxd4 5. Nxd4 Bg7 6. e4 d6 7. Be2 Nc6 8. Be3 Bd7 9. Qd2 0-0 10. f3 a6 11. 0-0 Rc8 12. Rac1 Qa5 13. Rfd1 Rfe8 14. Kh1 Qh5 15. Nb3 Na5 16. Nxa5 Qxa5 17. c5 Rc6 18. Qe1 Be6 19. cxd6 exd6 20. Qd2 Rec8 21. Bh6 b5 22. Bxg7 Kxg7 23. a3 Qc7 24. Qd4 Qb6 25. Ra1 Qxd4 26. Rxd4 d5 27. e5 Nd7 28. Re1 Nb6 29. Kg1 Nc4 30. Bxc4 Rxc4 31. Red1 Rxd4 32. Rxd4 Rc4 33. Rxc4 bxc4 34. Ne2 f6 35. Nd4 Kf7 36. f4 Bd7 37. Kf2 g5 38. Ke3 fxe5 39. fxe5 Kg6 40. Ne2 Kf5 41. Kd4 Ke6 42. Nc3 Bc6 43. g3 h6 44. Nd1 Ba4 45. Ne3 Bc6 46. Ng4 h5 47. Nf6 h4 48. g4 1-0

