[Event "Pan American-ch U14"]
[White "Osorio, Jonathan"]
[Black "Calcina Amezquita, Gari"]
[Site "Bogota"]
[Round "9"]
[Result "1-0"]
[Date "2004.07.29"]
[ECO "B76"]
[PlyCount "87"]
[EventDate "2004.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. f3 Nc6 8. Qd2 Bd7 9. 0-0-0 Rc8 10. Kb1 0-0 11. g4 Nxd4 12. Bxd4 Be6 13. h4 h5 14. g5 Ne8 15. Be2 a6 16. f4 Bxd4 17. Qxd4 Ng7 18. Nd5 Bxd5 19. Qxd5 Qc7 20. c3 Qb6 21. Qd4 Qxd4 22. cxd4 Rfd8 23. d5 Rc5 24. Rc1 Rdc8 25. b4 Rxc1+ 26. Rxc1 Rxc1+ 27. Kxc1 e6 28. Bc4 Kf8 29. a4 exd5 30. Bxd5 b6 31. a5 bxa5 32. bxa5 Ne6 33. f5 Nc7 34. Bc4 gxf5 35. exf5 d5 36. Be2 Ke7 37. f6+ Ke6 38. Bxh5 Nb5 39. Be2 Nd4 40. Bxa6 Nb3+ 41. Kc2 Nxa5 42. Bc8+ Kd6 43. h5 Nc4 44. h6 1-0

[Event "Pan American-ch U14"]
[White "Meza Ponce, Jeison"]
[Black "Osorio, Jonathan"]
[Site "Bogota"]
[Round "8"]
[Result "0-1"]
[Date "2004.07.28"]
[ECO "C56"]
[WhiteElo "2104"]
[PlyCount "56"]
[EventDate "2004.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. e5 d5 6. Bb5 Ne4 7. Nxd4 Bd7 8. Bxc6 bxc6 9. 0-0 Bc5 10. f3 Ng5 11. f4 Ne4 12. Be3 0-0 13. Nd2 f5 14. Kh1 Qh4 15. Nxe4 fxe4 16. Re1 Bxd4 17. Qxd4 Rf5 18. g3 Qh3 19. Qd2 Rh5 20. Qg2 Qg4 21. Rad1 Rh3 22. c4 Be6 23. cxd5 cxd5 24. Rc1 Rf8 25. Rxc7 Rf5 26. Qe2 Rfh5 27. Bg1 Qxg3 28. Qg2 Bg4 0-1

[Event "Pan American-ch U14"]
[White "Macias Murillo, Bryan"]
[Black "Osorio, Jonathan"]
[Site "Bogota"]
[Round "6"]
[Result "1-0"]
[Date "2004.07.27"]
[ECO "C77"]
[WhiteElo "2057"]
[PlyCount "43"]
[EventDate "2004.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Bc5 7. c3 0-0 8. Nbd2 Bb7 9. 0-0 Kh8 10. h3 d5 11. Qe2 dxe4 12. dxe4 Nh5 13. Nh2 Ng3 14. Qg4 Nxf1 15. Ndxf1 Qf6 16. Be3 Bxe3 17. Nxe3 Ne7 18. Re1 Rad8 19. Nf3 c6 20. Qh5 Ng6 21. Ng4 Qe7 22. Ng5 1-0

[Event "Pan American-ch U14"]
[White "Osorio, Jonathan"]
[Black "Arango Arenas, Juan Camilo"]
[Site "Bogota"]
[Round "5"]
[Result "1-0"]
[Date "2004.07.26"]
[ECO "B43"]
[PlyCount "55"]
[EventDate "2004.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Be3 Bb7 7. f3 Qc7 8. Qd2 Nf6 9. a4 b4 10. Na2 d5 11. e5 Qxe5 12. 0-0-0 Qc7 13. Nb3 Nc6 14. Qf2 Nd7 15. Kb1 Nce5 16. Bf4 Nd3 17. Bxd3 Qxf4 18. g3 Qc7 19. Rhe1 Ne5 20. Qd4 Nxd3 21. cxd3 Qc5 22. Qg4 g6 23. h4 Qd6 24. Rc1 Rc8 25. Red1 a5 26. h5 Rc5 27. hxg6 hxg6 28. Qxg6 1-0

[Event "Pan American-ch U14"]
[White "Pena, Alfredo"]
[Black "Osorio, Jonathan"]
[Site "Bogota"]
[Round "4"]
[Result "1-0"]
[Date "2004.07.26"]
[ECO "C83"]
[WhiteElo "2244"]
[PlyCount "79"]
[EventDate "2004.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Nbd2 Nc5 11. Bc2 0-0 12. Nd4 Nxe5 13. b4 Nb7 14. f4 Nc4 15. Nxc4 bxc4 16. Nc6 Qd6 17. Nxe7+ Qxe7 18. f5 Bd7 19. Qxd5 Qd6 20. Qf3 Bc6 21. Qg4 Qf6 22. Be3 h5 23. Qg3 Rfe8 24. Rae1 Nd6 25. Bg5 h4 26. Bxh4 Qh6 27. Bg5 Qh5 28. Be7 Qh6 29. f6 g6 30. Rf4 Qh5 31. Rh4 Nf5 32. Rxh5 Nxg3 33. Rh6 Nh5 34. Rxh5 gxh5 35. Re5 Bd7 36. Rg5+ Kh8 37. Rxh5+ Kg8 38. Bh7+ Kh8 39. Bf5+ Kg8 40. Bxd7 1-0

[Event "Pan American-ch U14"]
[White "Chang, Andres"]
[Black "Osorio, Jonathan"]
[Site "Bogota"]
[Round "2"]
[Result "0-1"]
[Date "2004.07.25"]
[ECO "C38"]
[WhiteElo "1991"]
[PlyCount "42"]
[EventDate "2004.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 5. h3 Nc6 6. d4 d6 7. c3 h6 8. 0-0 Nge7 9. Nbd2 0-0 10. Nh2 d5 11. exd5 Nxd5 12. Bxd5 Qxd5 13. h4 Ne7 14. hxg5 hxg5 15. Qh5 f6 16. Re1 Nf5 17. Ne4 Bd7 18. Qf3 Bc6 19. Qh3 Rac8 20. Nxf6+ Bxf6 21. Bd2 Nh4 0-1

[Event "Pan American-ch U14"]
[White "Osorio, Jonathan"]
[Black "Navarro Guerrero, Martin"]
[Site "Bogota"]
[Round "3"]
[Result "0-1"]
[Date "2004.07.25"]
[ECO "C19"]
[BlackElo "1928"]
[PlyCount "50"]
[EventDate "2004.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Nf3 Nbc6 8. Bd2 Qc7 9. Bd3 h6 10. Qc1 Bd7 11. a4 c4 12. Be2 0-0-0 13. Qa3 f6 14. Be3 Nf5 15. exf6 gxf6 16. 0-0 Rdg8 17. Rfb1 Nxe3 18. fxe3 e5 19. Qc5 Bh3 20. Bf1 e4 21. Ne1 Rg5 22. a5 Rhg8 23. Rb5 Bxg2 24. Nxg2 Rxg2+ 25. Bxg2 Qg7 0-1

[Event "Pan American-ch U14"]
[White "Osorio, Jonathan"]
[Black "Almanza, Rafael Andres"]
[Site "Bogota"]
[Round "1"]
[Result "1-0"]
[Date "2004.07.24"]
[ECO "C02"]
[PlyCount "63"]
[EventDate "2004.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 cxd4 7. cxd4 Nb4 8. Be2 Ne7 9. a3 Nbc6 10. Nc3 Nf5 11. Na4 Qc7 12. 0-0 Be7 13. Be3 0-0 14. b4 a5 15. b5 Nb8 16. Rc1 Qd8 17. Qb3 b6 18. Rc3 Nd7 19. Rfc1 Nxe3 20. fxe3 Bb7 21. Nd2 Re8 22. R1c2 Rc8 23. Rxc8 Bxc8 24. e4 dxe4 25. Nxe4 Nb8 26. Rc4 Bb7 27. Nac3 Bg5 28. Nd6 Re7 29. Bf3 Be3+ 30. Kf1 Rc7 31. Nxb7 Qh4 32. Ne4 1-0

[Event "Pan American-ch U12"]
[White "Osorio, Jonathan"]
[Black "Castillo, Ricardo"]
[Site "Bogota"]
[Round "1"]
[Result "0-1"]
[Date "2003.06.??"]
[ECO "B12"]
[PlyCount "79"]
[EventDate "2003.06.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Ne2 e6 5. Ng3 Bg6 6. h4 h6 7. h5 Bh7 8. Bd3 Bxd3 9. Qxd3 Nd7 10. f4 Qb6 11. Nd2 0-0-0 12. Nb3 Re8 13. a4 f5 14. a5 Qc7 15. Bd2 a6 16. Kf2 Rd8 17. Rhc1 Be7 18. c4 Bh4 19. cxd5 exd5 20. Qxf5 Ne7 21. Qg4 Bxg3+ 22. Qxg3 Rdf8 23. Kg1 Rhg8 24. Bb4 Re8 25. Bd6 Qd8 26. Qe1 Nf8 27. Qb4 Ne6 28. Qb6 Qd7 29. g4 g6 30. Kh2 Ref8 31. Nc5 Nxc5 32. Qxc5 Rxf4 33. e6 Qe8 34. Bxf4 gxh5 35. gxh5 Rg4 36. Qd6 Rh4+ 37. Kg3 Nf5+ 38. Kf3 Nxd6 39. Bxd6 Qg8 40. Be5 0-1

[Event "Pan American-ch U12"]
[White "Reinoso Moran, Jorge"]
[Black "Osorio, Jonathan"]
[Site "Bogota"]
[Round "6"]
[Result "1-0"]
[Date "2003.06.??"]
[ECO "C41"]
[PlyCount "55"]
[EventDate "2003.06.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 d6 4. dxe5 Nxe5 5. Nxe5 dxe5 6. Qxd8+ Kxd8 7. Nc3 Be6 8. f4 exf4 9. Bxf4 Bb4 10. 0-0-0+ Kc8 11. Nd5 Bxd5 12. exd5 Nf6 13. a3 Bd6 14. Bxd6 cxd6 15. g3 Re8 16. Bc4 Kc7 17. Rde1 a6 18. Rhf1 b5 19. Ba2 Kb6 20. b4 a5 21. bxa5+ Kxa5 22. Bb3 Kb6 23. Kb2 Kc5 24. h3 Rxe1 25. Rxe1 Nxd5 26. Rf1 f6 27. Rf5 Kc6 28. Bxd5+ 1-0

