[Event "Antioquia op-B"]
[Site "Medellin"]
[Date "2018.04.29"]
[Round "5"]
[White "Pena, Alcides"]
[Black "Piedrahita Hernandez, Byron Miguel"]
[Result "1-0"]
[ECO "D07"]
[WhiteElo "1750"]
[BlackElo "1621"]
[PlyCount "45"]
[EventDate "2018.04.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. Nc3 Nf6 4. Nf3 dxc4 5. e3 Bg4 6. Bxc4 e5 7. Be2 Bxf3 8. Bxf3 exd4 9. Bxc6+ bxc6 10. exd4 Qe7+ 11. Be3 Nd5 12. Qf3 Qe6 13. 0-0 Be7 14. Rfe1 0-0 15. Bg5 Qd6 16. Bxe7 Nxe7 17. Re2 Nd5 18. Rae1 Rab8 19. b3 Rb4 20. Nxd5 cxd5 21. Qc3 Qb6 22. Qc5 Rxd4 23. Qxf8+ 1-0

[Event "Antioquia op-B"]
[Site "Medellin"]
[Date "2018.04.29"]
[Round "6"]
[White "Piedrahita Hernandez, Byron Miguel"]
[Black "Molina Ballesteros, Juan Sebastian"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1621"]
[BlackElo "1343"]
[PlyCount "104"]
[EventDate "2018.04.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. Bc4 Nf6 4. d3 e6 5. Qe2 Nc6 6. Nf3 Be7 7. h3 0-0 8. 0-0 d5 9. Bb5 a6 10. Bxc6 bxc6 11. e5 Nd7 12. b3 f6 13. d4 cxd4 14. Nxd4 Nxe5 15. f4 Bc5 16. Be3 Bxd4 17. Bxd4 Ng6 18. Rae1 Qc7 19. Qf2 Bd7 20. Bc5 Rf7 21. h4 e5 22. fxe5 Nxe5 23. Qf4 Re8 24. h5 Rc8 25. Na4 Ng4 26. Bd6 Qa5 27. Nc5 Nh6 28. Be7 Rxe7 29. b4 Qd8 30. Qd6 Rxe1 31. Rxe1 Bg4 32. Qh2 Qf8 33. Nxa6 Re8 34. Rc1 Re5 35. a4 Bxh5 36. Nc5 Qe8 37. Nd3 Rg5 38. Re1 Qf8 39. Qc7 Nf5 40. Qxc6 Nd4 41. Qd7 Nf3+ 42. Kf2 Nxe1 43. Nxe1 Bg4 44. Qb7 Qe8 45. Nf3 Bxf3 46. gxf3 Re5 47. a5 Re2+ 48. Kg3 Qe5+ 49. f4 Qe3+ 50. Kg4 h5+ 51. Kxh5 Qh3+ 52. Kg6 Rg2# 0-1

[Event "Antioquia op-B"]
[Site "Medellin"]
[Date "2018.04.28"]
[Round "4"]
[White "Piedrahita Hernandez, Byron Miguel"]
[Black "Ferrer, Carlos Mario"]
[Result "1-0"]
[ECO "C70"]
[WhiteElo "1621"]
[PlyCount "16"]
[EventDate "2018.04.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. c3 a6 5. Ba4 b5 6. Bb3 d6 7. Ng5 d5 8. exd5 Nxd5 1-0

[Event "Antioquia op-B"]
[Site "Medellin"]
[Date "2018.04.27"]
[Round "3"]
[White "Alvarez, Carlos F"]
[Black "Piedrahita Hernandez, Byron Miguel"]
[Result "1-0"]
[ECO "C70"]
[WhiteElo "1815"]
[BlackElo "1621"]
[PlyCount "35"]
[EventDate "2018.04.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. Nc3 Nge7 5. 0-0 a6 6. Ba4 b5 7. Bb3 d6 8. Ng5 Be6 9. Bxe6 fxe6 10. Nxe6 Qd7 11. Nxg7+ Kd8 12. d3 Rg8 13. Bh6 Ng6 14. Nf5 Nf4 15. Bxf4 exf4 16. Nd5 Qf7 17. Nxf4 Ne7 18. Nxe7 1-0

[Event "Antioquia op-B"]
[Site "Medellin"]
[Date "2018.04.25"]
[Round "1"]
[White "Estrada, Walter"]
[Black "Piedrahita Hernandez, Byron Miguel"]
[Result "1-0"]
[ECO "C68"]
[WhiteElo "1960"]
[BlackElo "1621"]
[PlyCount "20"]
[EventDate "2018.04.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. Nc3 Bg4 6. h3 Bh5 7. g4 Bg6 8. Nxe5 Qf6 9. Nxg6 hxg6 10. d4 0-0-0 1-0

[Event "Medellin Conconcreto op"]
[Site "Medellin"]
[Date "2018.01.28"]
[Round "7"]
[White "Piedrahita Hernandez, Byron Miguel"]
[Black "Leon Acevedo, Juan Alejandro"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1681"]
[BlackElo "1572"]
[PlyCount "51"]
[EventDate "2018.01.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. Bc4 Nf6 4. d3 Nc6 5. a3 Bd7 6. h3 e6 7. Nce2 Be7 8. Nf4 b5 9. Bb3 a5 10. a4 b4 11. c3 Qb6 12. Be3 Rb8 13. Rb1 bxc3 14. bxc3 Qc7 15. Nf3 0-0 16. 0-0 Rfc8 17. Qc2 Rb7 18. d4 cxd4 19. cxd4 Nb4 20. Qxc7 Rbxc7 21. e5 Ne4 22. d5 exd5 23. Nxd5 Nxd5 24. Bxd5 Nc3 25. Rbd1 Nxd1 26. Rxd1 0-1

[Event "Medellin Conconcreto op"]
[Site "Medellin"]
[Date "2018.01.27"]
[Round "4"]
[White "Lopez Gonzalez, Carlos Andres"]
[Black "Piedrahita Hernandez, Byron Miguel"]
[Result "1-0"]
[ECO "C89"]
[WhiteElo "1692"]
[BlackElo "1681"]
[PlyCount "39"]
[EventDate "2018.01.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Nf6 6. 0-0 Be7 7. Re1 0-0 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d3 Bd6 13. Re1 Bf5 14. Qf3 Re8 15. Be3 Bxd3 16. Nd2 Ra7 17. Bxa7 Nf4 18. Be3 Nd5 19. Bxd5 cxd5 20. Bg5 1-0

[Event "Medellin Conconcreto op"]
[Site "Medellin"]
[Date "2018.01.26"]
[Round "3"]
[White "Piedrahita Hernandez, Byron Miguel"]
[Black "Gonzalez Zapata, Julian David"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "1681"]
[BlackElo "1754"]
[PlyCount "100"]
[EventDate "2018.01.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. Bc4 Nc6 4. d3 Nge7 5. Bg5 a6 6. a4 h6 7. Bh4 Ne5 8. Nf3 N5g6 9. Bg3 d5 10. Bb3 dxe4 11. Nxe4 Nf5 12. a5 Nxg3 13. hxg3 Be7 14. Rh5 Qc7 15. Qd2 0-0 16. 0-0-0 b5 17. Rxh6 Ne5 18. Rdh1 f6 19. Qf4 Nxd3+ 20. cxd3 Qxf4+ 21. gxf4 gxh6 22. Rxh6 Kg7 23. Rh5 Bd7 24. Nxc5 Rac8 25. d4 Bxc5 26. dxc5 Rh8 27. Rxh8 Kxh8 28. Nd4 Rxc5+ 29. Kd2 e5 30. fxe5 fxe5 31. Nf3 Bc6 32. Ne1 e4 33. Ke3 Kg7 34. Be6 b4 35. f4 exf3 36. Nxf3 Bxf3 37. Kxf3 Rxa5 38. Ke4 Kf6 39. Bc4 Re5+ 40. Kd4 a5 41. b3 Rg5 42. Bd5 Ke7 43. Kc5 Kd7 44. Kd4 Kd6 45. Bf3 Rc5 46. Be2 Rc3 47. Bc4 Rg3 48. Bd5 a4 49. bxa4 b3 50. Bxb3 Rxb3 0-1

[Event "Medellin Conconcreto op"]
[Site "Medellin"]
[Date "2018.01.25"]
[Round "2"]
[White "Caicedo, Carlos Andres"]
[Black "Piedrahita Hernandez, Byron Miguel"]
[Result "1-0"]
[ECO "C89"]
[WhiteElo "1980"]
[BlackElo "1681"]
[PlyCount "59"]
[EventDate "2018.01.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Nf6 6. 0-0 Be7 7. Re1 0-0 8. c3 d5 9. d3 Bg4 10. Qe2 d4 11. Bg5 h6 12. Bh4 Na5 13. Bc2 c5 14. Nbd2 Rc8 15. h3 Bxf3 16. Nxf3 Nd7 17. Bg3 Bf6 18. Red1 Qc7 19. Rac1 Qb6 20. Nh4 Bg5 21. Rb1 Qf6 22. Qg4 Rfd8 23. Rf1 Bf4 24. Nf5 g6 25. Bh4 g5 26. Bg3 Kh7 27. Rbd1 c4 28. cxd4 exd4 29. Bxf4 gxf4 30. Qxf4 1-0

[Event "Medellin Conconcreto op"]
[Site "Medellin"]
[Date "2018.01.24"]
[Round "1"]
[White "Piedrahita Hernandez, Byron Miguel"]
[Black "Chirivi Castiblanco, Angie Lizeth"]
[Result "1/2-1/2"]
[ECO "C90"]
[WhiteElo "1681"]
[BlackElo "2033"]
[PlyCount "82"]
[EventDate "2018.01.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[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. a4 Bb7 9. d3 d6 10. c3 Na5 11. Bc2 c5 12. axb5 axb5 13. Nbd2 Nc6 14. Rxa8 Qxa8 15. Nf1 b4 16. Nh4 bxc3 17. bxc3 d5 18. Nf5 dxe4 19. dxe4 Rd8 20. Qf3 Qa2 21. Re2 Qe6 22. Nd2 Ba6 23. Re3 Qa2 24. Bb3 Qa1 25. Re1 Rd3 26. Qd1 Qxc3 27. Ba4 g6 28. Bxc6 gxf5 29. exf5 Bc8 30. Bb5 c4 31. Bxc4 Rxd2 32. Qxd2 Qxc4 33. Qg5+ Kf8 34. Rxe5 Qc3 35. Qh6+ Ke8 36. Re2 Ba6 37. Bb2 Qb4 38. Rxe7+ Qxe7 39. h3 Qe1+ 40. Kh2 Qxf2 41. Qxf6 Qf4+ 1/2-1/2

[Event "Medellin Luces Cup"]
[Site "Medellin"]
[Date "2017.12.21"]
[Round "7"]
[White "Piedrahita Hernandez, Byron Miguel"]
[Black "Henao Ortiz, Carolina"]
[Result "0-1"]
[ECO "B25"]
[WhiteElo "1639"]
[BlackElo "1868"]
[PlyCount "48"]
[EventDate "2017.12.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. d3 g6 4. g3 Bg7 5. f4 d6 6. Bg2 Nh6 7. h3 0-0 8. Nf3 f5 9. 0-0 e5 10. Nd5 exf4 11. Bxf4 Nf7 12. c3 fxe4 13. dxe4 Be6 14. Rf2 Qd7 15. Kh2 Nce5 16. Rd2 Rad8 17. Ng5 Nxg5 18. Bxg5 Rde8 19. Nf4 Nc4 20. Nxe6 Qxe6 21. Rd5 Rf2 22. Qd3 Qxe4 23. Qxe4 Rxe4 24. Kg1 Ree2 0-1

[Event "Medellin Luces Cup"]
[Site "Medellin"]
[Date "2017.12.21"]
[Round "6"]
[White "Yepez Ortiz, Dubier"]
[Black "Piedrahita Hernandez, Byron Miguel"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "1752"]
[BlackElo "1639"]
[PlyCount "51"]
[EventDate "2017.12.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. g3 a6 8. Bg2 Ne5 9. 0-0 d6 10. f3 h5 11. h4 Nc4 12. Bg5 Nxb2 13. Qb3 Bxd4+ 14. Kh2 Qe5 15. cxd4 Qxd4 16. Be3 Qd3 17. Qxb2 Qxe3 18. Qxg7 Qh6 19. Qc3 Nc6 20. Na3 Be6 21. Rfb1 0-0-0 22. Rxb7 Kxb7 23. Rb1+ Ka7 24. Qxc6 Rb8 25. Qxc7+ Ka8 26. Qc6+ 1/2-1/2

[Event "Medellin Luces Cup"]
[Site "Medellin"]
[Date "2017.12.20"]
[Round "5"]
[White "Piedrahita Hernandez, Byron Miguel"]
[Black "Gallego, Jonathan"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1639"]
[BlackElo "1943"]
[PlyCount "64"]
[EventDate "2017.12.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 g6 4. Bg2 Bg7 5. f4 Nf6 6. h3 Nh5 7. Nce2 Nc6 8. Nf3 Qb6 9. g4 Nf6 10. d3 c4 11. Nc3 cxd3 12. cxd3 0-0 13. Qe2 Nd7 14. Be3 Nd4 15. Nxd4 Bxd4 16. Nd5 Qxb2 17. Bxd4 Qxd4 18. Nxe7+ Kg7 19. Rc1 Nc5 20. Bf1 Bd7 21. Rc4 Qa1+ 22. Kf2 Bb5 23. Bg2 Qf6 24. Nd5 Qh4+ 25. Kf3 Bxc4 26. Qb2+ f6 27. dxc4 Rae8 28. g5 Nxe4 29. gxf6+ Nxf6 30. Qxb7+ Rf7 31. Qb2 Kh6 32. Qd2 Ne4 0-1

[Event "Medellin Luces Cup"]
[Site "Medellin"]
[Date "2017.12.19"]
[Round "3"]
[White "Piedrahita Hernandez, Byron Miguel"]
[Black "Mesa, Francisco Alonso Jr"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1639"]
[BlackElo "1896"]
[PlyCount "48"]
[EventDate "2017.12.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. f4 Nc6 4. Bb5 Qc7 5. d3 a6 6. Bxc6 Qxc6 7. Nf3 d6 8. 0-0 Nf6 9. e5 Nd5 10. Ne4 h6 11. c4 Nb6 12. exd6 Bxd6 13. Ne5 Qc7 14. Qg4 Bf8 15. Qh5 g6 16. Nf6+ Kd8 17. Qh4 Qe7 18. Nf3 Nd7 19. Ne4 Qxh4 20. Nxh4 Be7 21. Nf3 b6 22. Ne5 Ke8 23. Be3 Bb7 24. a4 f5 0-1

[Event "Antioquia op-B"]
[Site "Medellin"]
[Date "2017.05.01"]
[Round "7"]
[White "Leon Acevedo, Juan Alejandro"]
[Black "Piedrahita Hernandez, Byron Miguel"]
[Result "1-0"]
[ECO "A22"]
[WhiteElo "1593"]
[BlackElo "1772"]
[PlyCount "41"]
[EventDate "2017.04.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nxc3 6. bxc3 Nc6 7. Rb1 Bc5 8. d3 Qf6 9. e3 0-0 10. Ne2 b6 11. d4 exd4 12. cxd4 Bf5 13. e4 Nxd4 14. Bb2 Bg4 15. Bxd4 Bxd4 16. Qxd4 Qe6 17. f3 c5 18. Qd5 Qxd5 19. exd5 Bf5 20. Rd1 Rfe8 21. Kf2 1-0

[Event "Antioquia op-B"]
[Site "Medellin"]
[Date "2017.04.30"]
[Round "5"]
[White "Piedrahita Hernandez, Byron Miguel"]
[Black "Restrepo, Hugo"]
[Result "0-1"]
[ECO "B20"]
[BlackElo "1707"]
[PlyCount "28"]
[EventDate "2017.04.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 a6 3. Bc4 e6 4. a4 Nf6 5. e5 d5 6. exf6 dxc4 7. fxg7 Bxg7 8. Qg4 Qd4 9. Qf3 Nc6 10. Nge2 Qf6 11. Qe4 Nd4 12. f4 Qg6 13. 0-0 Qxe4 14. Nxe4 Nxe2+ 0-1

[Event "Antioquia op-B"]
[Site "Medellin"]
[Date "2017.04.29"]
[Round "4"]
[White "Gomez Marin, Fernando Antonio"]
[Black "Piedrahita Hernandez, Byron Miguel"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1600"]
[PlyCount "84"]
[EventDate "2017.04.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. e3 c5 4. c3 Bg4 5. Qb3 Qc8 6. Nd2 a6 7. h3 Bh5 8. Ngf3 Nc6 9. dxc5 Qd7 10. Ne5 Nxe5 11. Bxe5 Rc8 12. Bd4 Bg6 13. c4 Ne4 14. cxd5 Nxd2 15. Kxd2 e5 16. Bxe5 Rxc5 17. Bd4 Rxd5 18. Qc3 Rc5 19. Qb3 Rc2+ 20. Ke1 Be7 21. Bd3 Bxd3 22. Qxd3 Rxb2 23. Rd1 Rxa2 24. Bxg7 Qxd3 25. Rxd3 Rg8 26. Bc3 Rxg2 27. Rd2 Ra3 28. Kf1 Rg5 29. Bd4 b5 30. Rg1 Rf5 31. Rg8+ Bf8 32. Bg7 Rg5 33. Rxf8+ Ke7 34. Rdd8 Rxg7 35. Rfe8+ Kf6 36. Rd6+ Kg5 37. Re5+ f5 38. f4+ Kh4 39. Rh6+ Kg3 40. Ke2 Rd7 41. Rxf5 Ra2+ 42. Ke1 Kf3 0-1

[Event "Antioquia op-B"]
[Site "Medellin"]
[Date "2017.04.28"]
[Round "2"]
[White "Piedrahita Hernandez, Byron Miguel"]
[Black "Ramirez, Mariana"]
[Result "0-1"]
[ECO "C01"]
[BlackElo "1517"]
[PlyCount "29"]
[EventDate "2017.04.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. c4 Nf6 5. Bg5 Bb4+ 6. Nc3 Be6 7. a3 Be7 8. Bxf6 Bxf6 9. cxd5 Bxd5 10. Nxd5 Qxd5 11. Qa4+ c6 12. Nf3 0-0 13. Bc4 Qe4+ 14. Be2 Re8 15. Rd1 0-1

[Event "Antioquia op-B"]
[Site "Medellin"]
[Date "2017.04.27"]
[Round "1"]
[White "Londono, Diego"]
[Black "Piedrahita Hernandez, Byron Miguel"]
[Result "1-0"]
[ECO "C44"]
[WhiteElo "1624"]
[PlyCount "49"]
[EventDate "2017.04.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. 0-0 Nge7 6. c3 dxc3 7. Nxc3 0-0 8. Ng5 g6 9. Nd5 Ne5 10. Nf6+ Kg7 11. Nfxh7 Rh8 12. b4 Bxb4 13. Bb2 N7c6 14. Nxf7 Qe7 15. Nhg5 Rh5 16. Qd5 Rxg5 17. Nxg5 Qc5 18. Kh1 Kh6 19. Nf7+ Nxf7 20. Qxf7 Ne5 21. Qf4+ g5 22. Qf6+ Kh5 23. Be2+ Ng4 24. Qf7+ Kh6 25. Qg7+ 1-0

[Event "Medellin Easter op 7th"]
[Site "Medellin"]
[Date "2017.04.15"]
[Round "7"]
[White "Piedrahita Hernandez, Byron Miguel"]
[Black "Paniagua, Fabio de Jesus"]
[Result "0-1"]
[ECO "C55"]
[BlackElo "1837"]
[PlyCount "76"]
[EventDate "2017.04.12"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. c3 Be7 7. h3 0-0 8. 0-0 b5 9. Bb3 Na5 10. Bc2 c5 11. Bg5 Bb7 12. Re1 Re8 13. Nbd2 Qc7 14. Nf1 h6 15. Bxf6 Bxf6 16. N3h2 g6 17. Qf3 Bg7 18. Ng4 Qe7 19. Nfe3 h5 20. Nh2 Qf8 21. a3 c4 22. a4 cxd3 23. Bxd3 Nb3 24. Rad1 bxa4 25. Bc4 Rac8 26. Bd5 Bxd5 27. Nxd5 Nc5 28. Nf6+ Bxf6 29. Qxf6 Re6 30. Qh4 Rb8 31. Rd2 Qd8 32. Qg3 Qf6 33. Nf3 Qf4 34. Qxf4 exf4 35. Ng5 Re5 36. Nf3 Rxe4 37. Rxe4 Nxe4 38. Rd4 f5 0-1

[Event "Medellin Easter op 7th"]
[Site "Medellin"]
[Date "2017.04.14"]
[Round "5"]
[White "Laverde, Luis Eduardo"]
[Black "Piedrahita Hernandez, Byron Miguel"]
[Result "1-0"]
[ECO "C84"]
[WhiteElo "2094"]
[PlyCount "83"]
[EventDate "2017.04.12"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Be7 7. 0-0 d6 8. c3 Nb8 9. a4 Bd7 10. axb5 Bxb5 11. Na3 Bd7 12. Nc4 c5 13. Bg5 Qc7 14. Ne3 h6 15. Bxf6 Bxf6 16. Nd5 Qd8 17. Nd2 0-0 18. Qh5 Be6 19. g3 Bg5 20. f4 g6 21. Qe2 exf4 22. gxf4 Bh4 23. f5 gxf5 24. exf5 Qg5+ 25. Kh1 Bxd5+ 26. Bxd5 Qd8 27. Bxa8 d5 28. c4 dxc4 29. dxc4 Bg5 30. Bd5 Nd7 31. Ne4 Nf6 32. Nxf6+ Qxf6 33. Rg1 Kh7 34. Qh5 Qxb2 35. Rxa6 Rg8 36. f6 Rg6 37. Ra7 Rxf6 38. Rxf7+ Kh8 39. Rxg5 Qc1+ 40. Rg1 Qf4 41. Rxf6 Qxf6 42. Qe8+ 1-0

[Event "Medellin Easter op 7th"]
[Site "Medellin"]
[Date "2017.04.14"]
[Round "4"]
[White "Piedrahita Hernandez, Byron Miguel"]
[Black "Laverde Uribe, Juan Gonzalo"]
[Result "1-0"]
[ECO "B23"]
[BlackElo "1937"]
[PlyCount "77"]
[EventDate "2017.04.12"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Bc4 a6 5. a4 d6 6. Nf3 Nf6 7. d3 Bg4 8. h3 Bxf3 9. gxf3 g6 10. f4 Qc7 11. Nd5 Nxd5 12. Bxd5 Bg7 13. c3 Nc6 14. f5 0-0 15. h4 Rfe8 16. fxg6 hxg6 17. h5 e6 18. Bb3 d5 19. Bg5 dxe4 20. h6 Bh8 21. h7+ Kf8 22. Qg4 f5 23. Qh4 Ne5 24. Qh6+ Kf7 25. dxe4 Nd3+ 26. Ke2 c4 27. Rh3 Qb6 28. Bxc4 Qxb2+ 29. Bd2 Ne5 30. exf5 Qxa1 31. fxg6+ Ke7 32. g7 Nxc4 33. gxh8Q Rxh8 34. Qh4+ Kd7 35. Qxc4 Qb2 36. Rd3+ Ke7 37. Qh4+ Ke8 38. Qh6 Qb6 39. Qg7 1-0

[Event "Medellin Easter op 7th"]
[Site "Medellin"]
[Date "2017.04.13"]
[Round "3"]
[White "Gomez Olivares, Jose David"]
[Black "Piedrahita Hernandez, Byron Miguel"]
[Result "0-1"]
[ECO "A58"]
[WhiteElo "1728"]
[PlyCount "74"]
[EventDate "2017.04.12"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. g3 g6 8. Bg2 Bg7 9. Nf3 0-0 10. 0-0 Nbd7 11. Nd2 Rb8 12. Re1 Ng4 13. Qc2 Qb6 14. b3 c4 15. Nde4 cxb3 16. axb3 Rfc8 17. Bd2 f5 18. h3 fxe4 19. hxg4 e3 20. Bxe3 Rxc3 21. Qe4 Rxe3 22. fxe3 Bxa1 23. Rxa1 Ne5 24. Bf3 Bb7 25. g5 e6 26. Qd4 Qxd4 27. exd4 Nxf3+ 28. exf3 Bxd5 29. Kf2 Rxb3 30. f4 Rf3+ 31. Ke2 Rxg3 32. Rb1 Kf7 33. Rc1 Ke8 34. Rc7 Rf3 35. Rxh7 Rxf4 36. Ke3 Rg4 37. Rh8+ Kd7 0-1

[Event "Medellin Easter op 7th"]
[Site "Medellin"]
[Date "2017.04.13"]
[Round "2"]
[White "Piedrahita Hernandez, Byron Miguel"]
[Black "Llano Buritica, Eduardo Alejandro"]
[Result "0-1"]
[ECO "B23"]
[BlackElo "1837"]
[PlyCount "50"]
[EventDate "2017.04.12"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 a6 3. a4 Nc6 4. Bc4 e6 5. d3 Nge7 6. f4 d5 7. Ba2 b5 8. Nf3 b4 9. exd5 exd5 10. Nb1 Nf5 11. Qe2+ Be7 12. Ne5 Bb7 13. Nxc6 Bxc6 14. Qe5 Nd4 15. Kd2 0-0 16. c3 Bf6 17. Qh5 b3 18. cxd4 bxa2 19. Rxa2 Qa5+ 20. Ke2 Rfe8+ 21. Kf3 Bxd4 22. Bd2 Qb6 23. Kg3 Qb3 24. Nc3 Bxc3 25. Bxc3 Qxa2 0-1

[Event "Medellin Easter op 7th"]
[Site "Medellin"]
[Date "2017.04.12"]
[Round "1"]
[White "Zapata Cuartas, Juan Carlos"]
[Black "Piedrahita Hernandez, Byron Miguel"]
[Result "1-0"]
[ECO "A59"]
[WhiteElo "2074"]
[PlyCount "49"]
[EventDate "2017.04.12"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 g6 7. e4 Bxf1 8. Kxf1 Bg7 9. g3 d6 10. Kg2 0-0 11. Nf3 Nbd7 12. h3 Rb8 13. Re1 Ne8 14. Re2 Nb6 15. e5 Nc4 16. exd6 exd6 17. Qd3 Nb6 18. a4 Bxc3 19. bxc3 Nc7 20. c4 Ra8 21. a5 Nd7 22. Bb2 Ne8 23. Qe3 Rxa5 24. Qc3 f6 25. Rxa5 1-0

