[Event "Bogota Navidad op"]
[Site "Bogota"]
[Date "2019.12.08"]
[Round "7"]
[White "Portillo Fernandez, Isaac Jesus"]
[Black "Piraquive, Alberto"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1716"]
[BlackElo "1861"]
[PlyCount "60"]
[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 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. h3 Nf6 6. Nf3 e6 7. c3 Bd6 8. Bg5 h6 9. Be3 Qc7 10. Nbd2 a6 11. Qe2 b5 12. b3 Bb7 13. 0-0 Ba3 14. c4 bxc4 15. bxc4 dxc4 16. Nxc4 Be7 17. Rfc1 Nb4 18. Nce5 Qd8 19. a3 Nxd3 20. Nxd3 0-0 21. Nc5 Bd5 22. Ne5 a5 23. a4 Bd6 24. Rab1 Qe7 25. Rb5 Rfc8 26. Qe1 Ne4 27. f4 f6 28. Ned3 Bc7 29. Nb7 Nd6 30. Nxd6 Qxd6 0-1

[Event "Bogota Navidad op"]
[Site "Bogota"]
[Date "2019.12.08"]
[Round "6"]
[White "Zambrano Linares, Ramon Alberto"]
[Black "Portillo Fernandez, Isaac Jesus"]
[Result "0-1"]
[ECO "C44"]
[WhiteElo "2011"]
[BlackElo "1716"]
[PlyCount "52"]
[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 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bb4+ 5. c3 dxc3 6. bxc3 Ba5 7. Qb3 Qe7 8. 0-0 d6 9. Bg5 Nf6 10. Nbd2 0-0 11. Rfe1 Bb6 12. h3 Be6 13. Bxe6 fxe6 14. Rad1 Na5 15. Qc2 e5 16. Bxf6 Rxf6 17. Nf1 Raf8 18. Rd3 Rg6 19. Kh1 Qe6 20. Kh2 Nc4 21. Ne3 Nxe3 22. fxe3 Qc4 23. Nd2 Rf2 24. Rg1 Qe6 25. Qb3 Qxb3 26. axb3 Bxe3 0-1

[Event "Bogota Navidad op"]
[Site "Bogota"]
[Date "2019.12.07"]
[Round "5"]
[White "Portillo Fernandez, Isaac Jesus"]
[Black "Prada, Diogenes"]
[Result "1-0"]
[ECO "A43"]
[WhiteElo "1716"]
[BlackElo "1922"]
[PlyCount "51"]
[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 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 0-0 6. Bc4 c5 7. d5 Na6 8. 0-0 Nc7 9. a4 a6 10. a5 Nb5 11. Re1 Nxc3 12. bxc3 b5 13. Bf1 Bb7 14. Bb2 c4 15. Ba3 Qxa5 16. Bb4 Qc7 17. Ba5 Qc8 18. Nd4 Nd7 19. Qf3 Nc5 20. Rad1 e5 21. fxe5 Bxe5 22. Kh1 Qd7 23. g4 Qe7 24. Rd2 Rac8 25. Bh3 Qg5 26. Rf2 1-0

[Event "Bogota Navidad op"]
[Site "Bogota"]
[Date "2019.12.07"]
[Round "4"]
[White "Sanchez, Sebastian Felipe"]
[Black "Portillo Fernandez, Isaac Jesus"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2419"]
[BlackElo "1716"]
[PlyCount "71"]
[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 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. b3 Nbd7 6. Bb2 Be7 7. Bd3 0-0 8. 0-0 c5 9. Nc3 b6 10. cxd5 exd5 11. Ne5 Bb7 12. f4 Rc8 13. Qf3 cxd4 14. exd4 Bb4 15. Bf5 Bxc3 16. Bxc3 g6 17. Bh3 Rc7 18. Bb4 Re8 19. Bd6 Rc2 20. Qd3 Rc8 21. Rae1 Ra8 22. Rc1 Rc8 23. Rce1 Ra8 24. Qf3 Nf8 25. Ba3 Ne4 26. f5 Nd2 27. Qf2 Nxf1 28. fxg6 fxg6 29. Qf7+ Kh8 30. Qxb7 Qh4 31. Nf3 Qf4 32. Rxf1 Rad8 33. Bc1 Qe4 34. Bg5 Rd6 35. Qf7 Qe2 36. Bh6 1-0

[Event "Bogota Navidad op"]
[Site "Bogota"]
[Date "2019.12.06"]
[Round "2"]
[White "Prado, Leonardo"]
[Black "Portillo Fernandez, Isaac Jesus"]
[Result "1/2-1/2"]
[ECO "C57"]
[WhiteElo "2077"]
[BlackElo "1716"]
[PlyCount "88"]
[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 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 b5 6. Bxb5 Qxd5 7. Nc3 Qxg2 8. Qf3 Qxf3 9. Nxf3 Bd7 10. Rg1 Nd4 11. Nxd4 exd4 12. Bxd7+ Kxd7 13. Ne2 Re8 14. d3 c5 15. Bg5 Nd5 16. Bd2 g6 17. Kf1 Bd6 18. h3 f5 19. c3 dxc3 20. bxc3 Rb8 21. c4 Nb4 22. Bc3 Rhe8 23. d4 Kc7 24. h4 a6 25. h5 Rg8 26. hxg6 hxg6 27. dxc5 Bxc5 28. Nf4 Kc6 29. Nxg6 Nd3 30. Ne5+ Nxe5 31. Rxg8 Rxg8 32. Bxe5 Rg4 33. Rc1 Re4 34. Bb2 Bd4 35. Bc3 Kc5 36. Bd2 Bf6 37. Be3+ Bd4 38. Bh6 f4 39. Bf8+ Kc6 40. c5 f3 41. Rc2 Rh4 42. Kg1 Rg4+ 43. Kf1 Rh4 44. Kg1 Rg4+ 1/2-1/2

[Event "Pan American-ch School U15"]
[Site "Medellin"]
[Date "2019.11.17"]
[Round "9"]
[White "Lyon Martinez, Juan Pablo"]
[Black "Portillo Fernandez, Isaac Jesus"]
[Result "0-1"]
[ECO "C60"]
[WhiteElo "1804"]
[BlackElo "1630"]
[PlyCount "61"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. c3 d5 5. Nxe5 dxe4 6. d4 exd3 7. Qf3 Be6 8. c4 a6 9. Ba4 f6 10. Nxc6 Nxc6 11. 0-0 Qd7 12. Nc3 0-0-0 13. b3 Bg4 14. Bxc6 bxc6 15. Qe3 d2 16. Qa7 Qd3 17. Bb2 Qc2 18. Qxa6+ Kd7 19. Rab1 Bb4 20. Nd5 Bc5 21. Qb7 Bxf2+ 22. Kh1 cxd5 23. Qxd5+ Ke8 24. Qc6+ Kf7 25. Qxc7+ Rd7 26. Qf4 Qxb1 27. Qxf2 Qxf1+ 28. Qxf1 d1Q 29. Kg1 Qxf1+ 30. Kxf1 Rd1+ 31. Kf2 0-1

[Event "Pan American-ch School U15"]
[Site "Medellin"]
[Date "2019.11.16"]
[Round "7"]
[White "Perez Rivero, Juan Jose"]
[Black "Portillo Fernandez, Isaac Jesus"]
[Result "1/2-1/2"]
[ECO "E05"]
[WhiteElo "1826"]
[BlackElo "1630"]
[PlyCount "86"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. d4 Be7 5. 0-0 0-0 6. c4 dxc4 7. Qc2 a6 8. Qxc4 Bd7 9. Nc3 Bc6 10. Qd3 Nbd7 11. e4 Nc5 12. Qe2 Ncxe4 13. Nxe4 Bxe4 14. Rd1 Qd5 15. Bf4 c6 16. Be5 Qb5 17. Qd2 Rfd8 18. a4 Qb3 19. Qf4 Bg6 20. h4 Nd5 21. Qd2 Bb4 22. Qe2 Qc2 23. Qxc2 Bxc2 24. Rdc1 Be4 25. Ne1 Bxg2 26. Nxg2 f6 27. Bf4 Nxf4 28. Nxf4 Bd2 29. Rc4 Bxf4 30. gxf4 Rd5 31. Rb4 b5 32. axb5 cxb5 33. Ra5 Kf7 34. Kh2 Rad8 35. Rxa6 Rxd4 36. Rxb5 Rxf4 37. Rb7+ Kg6 38. Kg3 Kf5 39. Rxg7 Rd3+ 40. Kg2 Rxh4 41. Re7 Rg4+ 42. Kf1 Rgd4 43. Ke2 Rb3 1/2-1/2

[Event "Pan American-ch School U15"]
[Site "Medellin"]
[Date "2019.11.16"]
[Round "8"]
[White "Portillo Fernandez, Isaac Jesus"]
[Black "Cordoba Perez, Jeronimo"]
[Result "1-0"]
[ECO "C15"]
[WhiteElo "1630"]
[BlackElo "1784"]
[PlyCount "99"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 dxe4 6. Qg4 Nf6 7. Qxg7 Rg8 8. Qh6 c5 9. Ne2 Nbd7 10. Ng3 b6 11. Bb5 Rg6 12. Qd2 Qc7 13. 0-0 Bb7 14. a4 0-0-0 15. Qe2 Rdg8 16. a5 h5 17. axb6 axb6 18. h4 e3 19. Bxe3 Ne4 20. Bxd7+ Kxd7 21. dxc5 Nxg3 22. fxg3 Ke8 23. Bf4 Qxc5+ 24. Kh2 Rg4 25. Rad1 Bd5 26. Qe5 f5 27. Rfe1 Kf7 28. Bg5 Rg6 29. Ra1 b5 30. Ra5 Ra4 31. Ra1 Rxa5 32. Rxa5 Qb6 33. Ra1 Qb7 34. Rg1 Bc4 35. Ra1 Bd5 36. Qd4 Qb8 37. Qc5 Kg8 38. Ra7 Rg7 39. Ra6 Rb7 40. Rd6 Kh7 41. Rd8 Qc7 42. Qd4 Qg7 43. Bf6 Qf7 44. Rh8+ Kg6 45. Be5 f4 46. gxf4 Rd7 47. Qf2 Kf5 48. Qe3 Bb7 49. Qh3+ Ke4 50. Qf3+ 1-0

[Event "Pan American-ch School U15"]
[Site "Medellin"]
[Date "2019.11.15"]
[Round "6"]
[White "Portillo Fernandez, Isaac Jesus"]
[Black "Mendez Huamani, Joseph Fabian"]
[Result "1-0"]
[ECO "B72"]
[WhiteElo "1630"]
[BlackElo "1437"]
[PlyCount "72"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 c5 5. Nf3 cxd4 6. Nxd4 Bg7 7. Be3 0-0 8. Be2 e5 9. Ndb5 Ne8 10. Bxa7 exf4 11. Bd4 Qh4+ 12. Bf2 Qd8 13. 0-0 Nc6 14. Nd5 Qg5 15. Nb6 Bh3 16. Bf3 Ra6 17. Nd5 Ra8 18. c3 Ne5 19. Bd4 Nc4 20. Qe2 Ne5 21. Kh1 Be6 22. Nb6 Ra6 23. a4 Qe7 24. a5 Nc7 25. b4 Nxf3 26. gxf3 Be5 27. Bxe5 dxe5 28. Rad1 Na8 29. Nd5 Qh4 30. c4 Qh3 31. c5 f6 32. Nxf6+ Kg7 33. Nd5 Bxd5 34. Rxd5 Kf6 35. Rfd1 Qc8 36. Rd7 Rd8 1-0

[Event "Pan American-ch School U15"]
[Site "Medellin"]
[Date "2019.11.14"]
[Round "4"]
[White "Campos Perilla, Miguel Angel"]
[Black "Portillo Fernandez, Isaac Jesus"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "1455"]
[BlackElo "1630"]
[PlyCount "62"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. 0-0 Bc5 6. c3 d6 7. h3 0-0 8. Re1 Re8 9. Nbd2 a6 10. a4 Be6 11. b3 d5 12. exd5 Bxd5 13. d4 exd4 14. Rxe8+ Qxe8 15. cxd4 Nxd4 16. Bb2 Bxc4 17. Nxc4 Ne2+ 18. Kf1 Nf4 19. Nfe5 b5 20. Na5 Rd8 21. Qc1 Bd4 22. Bxd4 Rxd4 23. Nec6 Qe2+ 24. Kg1 Rd2 25. Qc5 Ne4 26. Ne7+ Kh8 27. Qa7 Qxf2+ 28. Qxf2 Rxf2 29. Rd1 Rxg2+ 30. Kf1 Ng3+ 31. Ke1 Re2# 0-1

[Event "Pan American-ch School U15"]
[Site "Medellin"]
[Date "2019.11.14"]
[Round "5"]
[White "Rodriguez Valencia, Sebastian"]
[Black "Portillo Fernandez, Isaac Jesus"]
[Result "1-0"]
[ECO "E61"]
[WhiteElo "1784"]
[BlackElo "1630"]
[PlyCount "75"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 g6 4. Bg2 Bg7 5. e3 0-0 6. Nge2 d6 7. 0-0 c6 8. d4 Qc7 9. b3 Nfd7 10. Bb2 f5 11. Rc1 Nf6 12. Qd2 a6 13. Rfd1 e4 14. b4 b6 15. f3 exf3 16. Bxf3 Bb7 17. Nf4 Qe7 18. d5 c5 19. Ne6 Rf7 20. bxc5 bxc5 21. Ne2 Nbd7 22. Qa5 Ne5 23. Bxe5 dxe5 24. Nxc5 e4 25. Bg2 Ng4 26. Rb1 Bc8 27. d6 Qg5 28. Nf4 Nxe3 29. d7 Bxd7 30. Rxd7 Nxc4 31. Qc7 Bd4+ 32. Kh1 Be5 33. Qc6 Re8 34. Rxf7 Kxf7 35. Qd5+ Kf6 36. Qxc4 Bxf4 37. Rb6+ Kg7 38. Rb7+ 1-0

[Event "Pan American-ch School U15"]
[Site "Medellin"]
[Date "2019.11.13"]
[Round "3"]
[White "Portillo Fernandez, Isaac Jesus"]
[Black "Campos Perilla, Felix Santiago"]
[Result "1-0"]
[ECO "C48"]
[WhiteElo "1630"]
[BlackElo "1492"]
[PlyCount "113"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Bc4 d6 6. h3 Be7 7. 0-0 Be6 8. d3 Nxf3+ 9. Qxf3 0-0 10. Be3 c6 11. Bg5 h6 12. Bh4 b5 13. Bb3 a5 14. a4 b4 15. Ne2 d5 16. Bxf6 Bxf6 17. Ng3 g6 18. Rad1 Bg7 19. Rfe1 Qc7 20. c4 d4 21. Rd2 Kh7 22. Rf1 c5 23. Bd1 f5 24. exf5 Bxf5 25. Nxf5 gxf5 26. Qh5 Rf6 27. Bf3 Raf8 28. Bd5 Qd7 29. b3 Rg6 30. f4 Qe8 31. Qf3 exf4 32. Re2 Qd7 33. Qxf4 Rff6 34. Rfe1 Bf8 35. Be6 Qd6 36. Qxd6 Bxd6 37. Bd5 h5 38. Re8 h4 39. Ra8 f4 40. Be4 f3 41. Bxg6+ Kxg6 42. gxf3 Rxf3 43. Re6+ Kf5 44. Rxd6 Rxd3 45. Rxa5 Ke4 46. Rxc5 Kf3 47. Rf6+ Kg3 48. Rg5+ Kxh3 49. Rf2 Rd1+ 50. Rf1 Rd3 51. Kf2 Rd2+ 52. Ke1 Ra2 53. Rh1+ Rh2 54. Rxh2+ Kxh2 55. a5 h3 56. Kf2 d3 57. Rd5 1-0

[Event "Pan American-ch School U15"]
[Site "Medellin"]
[Date "2019.11.12"]
[Round "1"]
[White "Portillo Fernandez, Isaac Jesus"]
[Black "Castillo Valdes, Keneth Alexander"]
[Result "1-0"]
[ECO "C46"]
[WhiteElo "1630"]
[PlyCount "67"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 g6 4. d4 Bg7 5. Be3 Nf6 6. d5 Ne7 7. Nxe5 d6 8. Nf3 Ng4 9. Qd2 Ne5 10. Be2 Bg4 11. Nxe5 Bxe2 12. Nxf7 Kxf7 13. Qxe2 Re8 14. 0-0 Bxc3 15. bxc3 c6 16. Rab1 cxd5 17. exd5 Kg8 18. Rxb7 Nxd5 19. Qc4 Re5 20. Rd1 Rc8 21. Qb3 Qa5 22. Bd4 Rf5 23. Rxa7 Qd8 24. Rg7+ Kf8 25. Rxh7 Ke8 26. Rh8+ Rf8 27. Qxd5 Rxh8 28. Qe6+ Kf8 29. Bxh8 Qe7 30. Qxc8+ Kf7 31. Qc4+ Ke8 32. Rb1 g5 33. Rb8+ Kd7 34. Qc8# 1-0

[Event "Pan American-ch School U15"]
[Site "Medellin"]
[Date "2019.11.12"]
[Round "2"]
[White "Solares Orozco, Kebert"]
[Black "Portillo Fernandez, Isaac Jesus"]
[Result "1-0"]
[ECO "A20"]
[WhiteElo "2322"]
[BlackElo "1630"]
[PlyCount "113"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. c4 e5 2. d3 Nf6 3. Nf3 Nc6 4. a3 d5 5. cxd5 Nxd5 6. e4 Nf6 7. h3 Bc5 8. Be2 h6 9. Nbd2 Be6 10. b4 Bd4 11. Nxd4 Nxd4 12. Bb2 0-0 13. 0-0 Qd6 14. Rc1 Rad8 15. Bxd4 exd4 16. f4 Qe7 17. Qc2 c6 18. Nb3 Bxb3 19. Qxb3 Nd7 20. Bg4 Nf6 21. Bf3 Nd7 22. e5 Qe6 23. Qa4 a6 24. Bg4 Qd5 25. Qa5 Qxa5 26. bxa5 f5 27. exf6 Rxf6 28. Rc4 Nf8 29. Rb1 Rf7 30. g3 Rd5 31. Bc8 Rxa5 32. Bxb7 Rxa3 33. Bxc6 Rf6 34. Bd5+ Kh7 35. Rxd4 h5 36. Be4+ Kh6 37. h4 g6 38. Rb7 Ra1+ 39. Kg2 Ra2+ 40. Kf3 a5 41. Ra7 Rb6 42. Rd8 Rf6 43. Rda8 Ra1 44. Rxa5 Rxa5 45. Rxa5 Rf7 46. Ra6 Kg7 47. Rb6 Rf6 48. Rxf6 Kxf6 49. d4 Ne6 50. Ke3 Nf8 51. d5 Nd7 52. Kd4 Kf7 53. Bc2 Kf6 54. Bd3 Kf7 55. d6 Kf6 56. Kd5 Nb8 57. Bb5 1-0

[Event "VEN-ch U20"]
[Site "Maracay"]
[Date "2018.05.31"]
[Round "3"]
[White "Padilla Olmedo, Jork Kein"]
[Black "Portillo Fernandez, Isaac Jesus"]
[Result "0-1"]
[ECO "C54"]
[BlackElo "1476"]
[PlyCount "100"]
[EventDate "2018.05.31"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "VEN"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 0-0 6. 0-0 h6 7. b4 Bb6 8. a4 a6 9. a5 Ba7 10. Bb2 d5 11. Bxd5 Nxd5 12. exd5 Qxd5 13. c4 Qd6 14. b5 Nd4 15. Ba3 Bc5 16. Nxd4 Qxd4 17. Bxc5 Qxc5 18. Nc3 axb5 19. Nxb5 Rd8 20. Qc2 Bf5 21. Rfd1 c6 22. Nc3 Rxa5 23. Ne4 Qa7 24. Rxa5 Qxa5 25. Qc3 Qxc3 26. Nxc3 Rxd3 27. Rxd3 Bxd3 28. c5 Kf8 29. f3 Ke7 30. Kf2 Ke6 31. Ke3 Bg6 32. g4 f5 33. h3 Bh7 34. Kd3 fxg4+ 35. Ke2 gxh3 36. Kf2 g5 37. Kg3 Bf5 38. Ne4 Bxe4 39. fxe4 g4 40. Kh2 Kf6 41. Kg3 Kg5 42. Kh2 Kf4 43. Kg1 Kxe4 44. Kh2 Kd4 45. Kg1 Kxc5 46. Kh2 e4 47. Kg1 e3 48. Kh2 e2 49. Kg1 g3 50. Kh1 e1R# 0-1

[Event "VEN-ch U20"]
[Site "Maracay"]
[Date "2018.05.31"]
[Round "1"]
[White "Patino Garcia, Corals"]
[Black "Portillo Fernandez, Isaac Jesus"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "2012"]
[BlackElo "1476"]
[PlyCount "33"]
[EventDate "2018.05.31"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "VEN"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc2 Be7 7. e4 dxe4 8. Nxe4 c5 9. Nxf6+ Nxf6 10. Be3 Qc7 11. Bd3 0-0 12. 0-0 Bd7 13. dxc5 Bxc5 14. Bg5 Be7 15. Bxf6 Bxf6 16. Bxh7+ Kh8 17. Be4 1-0

[Event "VEN-ch U20"]
[Site "Maracay"]
[Date "2018.05.31"]
[Round "6"]
[White "Perez Rivero, Juan Jose"]
[Black "Portillo Fernandez, Isaac Jesus"]
[Result "1-0"]
[ECO "D47"]
[WhiteElo "1666"]
[BlackElo "1476"]
[PlyCount "63"]
[EventDate "2018.05.31"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "VEN"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Be2 dxc4 7. Bxc4 b5 8. Be2 Bd6 9. a3 a6 10. 0-0 Bb7 11. e4 e5 12. Be3 Qe7 13. dxe5 Bxe5 14. Nxe5 Nxe5 15. b4 0-0 16. Bc5 Qe6 17. Bxf8 Rxf8 18. Qd4 c5 19. Qxc5 Nxe4 20. Nxe4 Bxe4 21. Qe3 Qg6 22. f3 Bxf3 23. Bxf3 Nc4 24. Qf2 Kh8 25. Rad1 f5 26. Qc5 Re8 27. Rfe1 Rxe1+ 28. Rxe1 h6 29. Qc6 Qg5 30. Qxa6 Qd2 31. Qc8+ Kh7 32. Qxf5+ 1-0

[Event "VEN-ch U20"]
[Site "Maracay"]
[Date "2018.05.31"]
[Round "7"]
[White "Portillo Fernandez, Isaac Jesus"]
[Black "Chirinos Mijares, Hector Enrique"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "1476"]
[BlackElo "1111"]
[PlyCount "55"]
[EventDate "2018.05.31"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "VEN"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 c6 4. Bd3 e6 5. Nbd2 Bd6 6. c3 Nfd7 7. 0-0 0-0 8. Re1 b5 9. e4 e5 10. exd5 exd4 11. cxd4 Nb6 12. dxc6 Bc5 13. Ne4 Bb4 14. Nf6+ Qxf6 15. Bd2 Nd5 16. a3 Bxd2 17. Qxd2 Nf4 18. Bxb5 Bg4 19. Ne5 Be6 20. Rad1 Rd8 21. Qc2 Qg5 22. Qe4 f6 23. Nc4 Qxb5 24. Qxf4 Qxc4 25. Qe3 Bf7 26. Qe7 Qxd4 27. Rxd4 Re8 28. Qd6 1-0

[Event "VEN-ch U20"]
[Site "Maracay"]
[Date "2018.05.31"]
[Round "4"]
[White "Portillo Fernandez, Isaac Jesus"]
[Black "Colmenarez Orsini, Ricardo Elias"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "1476"]
[BlackElo "1820"]
[PlyCount "57"]
[EventDate "2018.05.31"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "VEN"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. f4 e6 5. Nf3 Ne7 6. Bd3 h5 7. c4 dxc4 8. Bxc4 Nd7 9. Nc3 Nb6 10. Qb3 Nxc4 11. Qxc4 Bh7 12. Be3 Nf5 13. Bf2 Be7 14. 0-0 Qd7 15. a4 a5 16. Rfd1 0-0 17. Rac1 Rab8 18. Ne4 Rfc8 19. Nc5 Qe8 20. Qa2 Bd8 21. h3 Ne7 22. Ng5 Bf5 23. Nge4 Bc7 24. Nd6 Bxd6 25. exd6 Rd8 26. dxe7 Qxe7 27. Qa3 Qc7 28. Be3 Rd5 29. b4 1/2-1/2

[Event "VEN-ch U20"]
[Site "Maracay"]
[Date "2018.05.31"]
[Round "5"]
[White "Portillo Fernandez, Isaac Jesus"]
[Black "Rodil Fermin, Leonardo Enrique"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "1476"]
[BlackElo "1729"]
[PlyCount "110"]
[EventDate "2018.05.31"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "VEN"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. f4 Qb6 5. Nf3 e6 6. Bd3 Bxd3 7. Qxd3 Qa6 8. Qxa6 Nxa6 9. a3 c5 10. Nc3 Ne7 11. Be3 Nc6 12. Nb5 cxd4 13. Nfxd4 Kd7 14. 0-0-0 Be7 15. c4 Rhc8 16. b3 Ke8 17. Kb2 dxc4 18. bxc4 Nxd4 19. Rxd4 Nc5 20. Rhd1 a6 21. Nd6+ Bxd6 22. Rxd6 Rc7 23. Bxc5 Rxc5 24. Kb3 Rac8 25. R1d4 R5c7 26. Kb4 Ke7 27. g4 f6 28. f5 exf5 29. exf6+ gxf6 30. gxf5 Rxc4+ 31. Kb3 Rxd4 32. Rxd4 Rc5 33. Rh4 Kd6 34. Rxh7 Rb5+ 35. Kc3 Ke5 36. a4 Rb1 37. Rh5 Kf4 38. h3 b5 39. axb5 Rxb5 40. Kd4 Rxf5 41. Rh8 Kg3 42. Ke4 Re5+ 43. Kd3 f5 44. Rh5 Ra5 45. Kc2 Ra2+ 46. Kc1 f4 47. Rf5 f3 48. Kd1 Rh2 49. Rf6 Re2 50. Kc1 Ra2 51. Kd1 a5 52. h4 f2 53. Kc1 Ra1+ 54. Kd2 Re1 55. Kc2 f1Q 0-1

[Event "VEN-ch U20"]
[Site "Maracay"]
[Date "2018.05.31"]
[Round "2"]
[White "Portillo Fernandez, Isaac Jesus"]
[Black "Romero Marino, Samuel David"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1476"]
[BlackElo "1876"]
[PlyCount "42"]
[EventDate "2018.05.31"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "VEN"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. c3 d6 3. d4 Nf6 4. Qc2 Qc7 5. Nf3 Bg4 6. dxc5 dxc5 7. Be2 Nc6 8. Be3 e6 9. Nbd2 Bd6 10. 0-0-0 0-0 11. h3 Bxf3 12. gxf3 Qa5 13. Rhg1 Rfd8 14. Bh6 g6 15. f4 Bf8 16. Bxf8 Kxf8 17. e5 Qxa2 18. Bc4 Qa1+ 19. Nb1 Nxe5 20. Be2 c4 21. Rg3 Nh5 0-1

