[Event "Pan American-ch U18"]
[Site "Bogota"]
[Date "2004.07.29"]
[Round "9"]
[White "Sierra Garcia, Juan"]
[Black "Otazo Sanchez, Gibran"]
[Result "1/2-1/2"]
[ECO "B85"]
[PlyCount "30"]
[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 Nf6 5. Nc3 e6 6. Be3 a6 7. Be2 Be7 8. 0-0 0-0 9. Kh1 Nc6 10. f4 Nxd4 11. Bxd4 b5 12. e5 Ne8 13. Bd3 Bb7 14. f5 exf5 15. Rxf5 g6 1/2-1/2

[Event "Pan American-ch U18"]
[Site "Bogota"]
[Date "2004.07.28"]
[Round "8"]
[White "Borda, Alan"]
[Black "Sierra Garcia, Juan"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2118"]
[PlyCount "23"]
[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. c3 d5 3. exd5 Qxd5 4. d4 cxd4 5. cxd4 Nc6 6. Nf3 Bg4 7. Nc3 Qe6+ 8. Be3 Bxf3 9. gxf3 Rd8 10. d5 Qe5 11. f4 Qf5 12. Bd3 1-0

[Event "Pan American-ch U18"]
[Site "Bogota"]
[Date "2004.07.28"]
[Round "7"]
[White "Sierra Garcia, Juan"]
[Black "Torres, Carlos"]
[Result "1/2-1/2"]
[ECO "B08"]
[BlackElo "2113"]
[PlyCount "59"]
[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 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. h3 c6 6. Bd3 0-0 7. 0-0 Nbd7 8. Bf4 b5 9. Qd2 a6 10. Rfe1 c5 11. Bh6 Bb7 12. Bxg7 Kxg7 13. e5 Ne8 14. Be4 Bxe4 15. Nxe4 Qb6 16. exd6 exd6 17. dxc5 Nxc5 18. Qd4+ Kg8 19. Rad1 Rc8 20. Qe3 Qc7 21. Nc3 Ne6 22. Nd5 Qd8 23. Nd4 N8g7 24. c3 Re8 25. Qh6 Rc5 26. Nxe6 Rxe6 27. Qd2 Nf5 28. Nf4 Rxe1+ 29. Rxe1 Qf6 30. Nd5 1/2-1/2

[Event "Pan American-ch U18"]
[Site "Bogota"]
[Date "2004.07.27"]
[Round "6"]
[White "Llanos Lopez, Walter"]
[Black "Sierra Garcia, Juan"]
[Result "1-0"]
[ECO "A39"]
[WhiteElo "2164"]
[PlyCount "65"]
[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. c4 Nf6 2. Nc3 c5 3. g3 Nc6 4. Bg2 g6 5. Nf3 Bg7 6. d4 cxd4 7. Nxd4 0-0 8. 0-0 Qb6 9. Nb3 d6 10. c5 dxc5 11. Na4 Qc7 12. Naxc5 Rd8 13. Qc2 Nd4 14. Nxd4 Rxd4 15. Bf4 e5 16. Be3 Rd8 17. Rfd1 Bf5 18. Qb3 Rxd1+ 19. Rxd1 Rb8 20. Bxb7 Qb6 21. Bg2 Qc7 22. Qa3 Bf8 23. b4 Rd8 24. Qc1 Rxd1+ 25. Qxd1 Ng4 26. Qc1 a5 27. a3 axb4 28. axb4 Qb6 29. Bd2 Qb5 30. h3 Nf6 31. e4 Bxc5 32. exf5 Bxb4 33. Qb2 1-0

[Event "Pan American-ch U18"]
[Site "Bogota"]
[Date "2004.07.26"]
[Round "3"]
[White "Echeverry Alvira, Santiago"]
[Black "Sierra Garcia, Juan"]
[Result "0-1"]
[ECO "B92"]
[PlyCount "62"]
[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 Nf6 5. Nc3 a6 6. a4 e5 7. Nb3 Be6 8. Be2 Be7 9. Be3 0-0 10. 0-0 Nc6 11. h3 Rc8 12. Qe1 Nb4 13. Rc1 Nxc2 14. Rxc2 Bxb3 15. Rd2 Qa5 16. f4 exf4 17. Rxf4 Nd7 18. Rf5 Ne5 19. Qg3 Qc7 20. Bd4 Be6 21. Rxe5 dxe5 22. Bxe5 Qc5+ 23. Kh1 f6 24. Bf4 Rfd8 25. Nd5 Bxd5 26. exd5 Bd6 27. Bg4 Qc1+ 28. Kh2 Qxd2 29. Bxd6 Qxd5 30. Bf4 Rc2 31. Qe3 Qxg2# 0-1

[Event "Pan American-ch U18"]
[Site "Bogota"]
[Date "2004.07.26"]
[Round "4"]
[White "Sierra Garcia, Juan"]
[Black "Chang Suarez, Rommel Felipe"]
[Result "0-1"]
[ECO "B13"]
[BlackElo "2138"]
[PlyCount "68"]
[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 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. h3 g6 7. Nf3 Bg7 8. 0-0 0-0 9. Bf4 Bf5 10. Bxf5 gxf5 11. Qd3 Ne4 12. Ng5 e6 13. Qe3 Qe7 14. h4 f6 15. Nxe4 fxe4 16. Qg3 e5 17. dxe5 Nxe5 18. h5 Kf7 19. h6 Bh8 20. Nd2 Rg8 21. Qh2 Rg6 22. Qh5 Rag8 23. f3 e3 24. Bxe3 Kf8 25. Rae1 b6 26. Qf5 Rxg2+ 27. Kh1 Nd3 28. Qxd5 Nxe1 29. Bf4 R2g5 30. Bxg5 Rxg5 31. Qa8+ Kf7 32. Qxh8 Qe6 33. Qxh7+ Kf8 34. Qh8+ Rg8 0-1

[Event "Pan American-ch U18"]
[Site "Bogota"]
[Date "2004.07.26"]
[Round "5"]
[White "Sierra Garcia, Juan"]
[Black "Elias Alvarez, Alfonso Jose"]
[Result "1-0"]
[ECO "B33"]
[PlyCount "47"]
[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 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Bxf6 gxf6 9. Na3 f5 10. exf5 Bxf5 11. Bd3 Be6 12. Be4 Bg7 13. 0-0 0-0 14. Qh5 f5 15. Bd5 Qe7 16. Nc4 Rad8 17. Rad1 Nb4 18. Nb6 Qf7 19. Bxe6 Qxe6 20. a3 Nxc2 21. Qe2 Qb3 22. Ncd5 Nd4 23. Qh5 Rf7 24. Qh4 1-0

[Event "Pan American-ch U18"]
[Site "Bogota"]
[Date "2004.07.25"]
[Round "2"]
[White "Sierra Garcia, Juan"]
[Black "Gonzalez, Roberto"]
[Result "1-0"]
[ECO "B13"]
[BlackElo "2288"]
[PlyCount "120"]
[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 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nf6 5. h3 Nc6 6. c3 e6 7. Nf3 Bd6 8. 0-0 0-0 9. Bg5 h6 10. Bh4 Be7 11. Nbd2 Nd7 12. Bg3 Qb6 13. Nb3 Na5 14. Nxa5 Qxa5 15. Re1 Qb6 16. Qd2 Bd6 17. Bh4 Qc7 18. Rad1 Bf4 19. Qe2 Re8 20. Ne5 Bxe5 21. dxe5 Nc5 22. Bb1 Nd7 23. Qd3 g6 24. Qe3 Kh7 25. Qf4 Kg7 26. Bf6+ Kh7 27. Bh4 Nf8 28. Re3 b6 29. Rf3 f5 30. exf6 Qxf4 31. Rxf4 e5 32. Rb4 Be6 33. a4 Red8 34. Re1 Nd7 35. Bg3 e4 36. f3 Nxf6 37. fxe4 dxe4 38. Bxe4 Nxe4 39. Rbxe4 Bf5 40. Re7+ Kg8 41. Rc7 Rd7 42. Re7 Rxe7 43. Rxe7 Bc2 44. Be5 h5 45. Rg7+ Kf8 46. Rh7 Be4 47. b4 a6 48. c4 Kg8 49. Rc7 a5 50. b5 Rd8 51. c5 Rd5 52. cxb6 Rxe5 53. b7 Bxb7 54. Rxb7 Re4 55. Ra7 Rxa4 56. b6 Rb4 57. b7 a4 58. Ra8+ Kf7 59. b8Q Rxb8 60. Rxb8 Kf6 1-0

[Event "Pan American-ch U18"]
[Site "Bogota"]
[Date "2004.07.24"]
[Round "1"]
[White "Carvajal Gorgona, Jonathan G"]
[Black "Sierra Garcia, Juan"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2087"]
[PlyCount "59"]
[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. Nc3 d6 3. f4 Nc6 4. Bc4 Nf6 5. d3 g6 6. h3 Bg7 7. Nf3 0-0 8. 0-0 a6 9. a4 e6 10. Bb3 b6 11. Qe1 Bb7 12. f5 exf5 13. Bg5 Qd7 14. Qh4 fxe4 15. dxe4 Ne8 16. Nd5 Kh8 17. Nxb6 Qc7 18. Nd5 Qb8 19. Bf6 Nxf6 20. Nxf6 h6 21. Nd7 Qc7 22. Nxf8 Rxf8 23. Rad1 Na5 24. Bd5 Bxd5 25. exd5 c4 26. Kh1 Kg8 27. Nd2 Rb8 28. Rde1 Rb7 29. Re8+ Kh7 30. Ne4 1-0

[Event "Pan American-ch U18"]
[Site "Bogota"]
[Date "2003.06.11"]
[Round "3"]
[White "Sierra Garcia, Juan"]
[Black "Wang, Hao Yuan"]
[Result "1-0"]
[ECO "B86"]
[BlackElo "2226"]
[PlyCount "59"]
[EventDate "2003.06.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. Bc4 e6 7. a4 Nbd7 8. a5 Nc5 9. Qe2 Be7 10. 0-0 d5 11. exd5 exd5 12. Nxd5 Nxd5 13. Qh5 0-0 14. Bxd5 Nd7 15. Qd1 Nf6 16. Bf3 Qc7 17. c3 Bd6 18. h3 h6 19. Re1 Rd8 20. Qb3 Nd7 21. Qd5 Nc5 22. Qh5 Nd3 23. Re2 Nxc1 24. Rxc1 Bd7 25. Rce1 Rab8 26. Re3 b6 27. Bd5 Rf8 28. Rf3 Be8 29. Nf5 Bc6 30. Qg6 1-0

[Event "Pan American-ch U18"]
[Site "Bogota"]
[Date "2003.06.09"]
[Round "2"]
[White "Torres, Roberto"]
[Black "Sierra Garcia, Juan"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "1811"]
[PlyCount "88"]
[EventDate "2003.06.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. 0-0 e5 5. c3 Nf6 6. Re1 Bd7 7. d4 Qc7 8. Bg5 Be7 9. d5 Nb8 10. Bxd7+ Nbxd7 11. h3 h6 12. Bh4 g5 13. Bg3 0-0-0 14. Nbd2 Rdg8 15. Nh2 h5 16. Nhf1 h4 17. Bh2 g4 18. Kh1 Nf8 19. f4 exf4 20. Bxf4 Nh5 21. Be3 Qd7 22. Kh2 gxh3 23. gxh3 Bf6 24. Nf3 Ng3 25. Rc1 Nxf1+ 26. Rxf1 Rg3 27. Ng1 Be5 28. Bf4 Bxf4 29. Rxf4 Rhg8 30. Qe2 Ng6 31. Rf5 Ne5 32. Rcf1 Qa4 33. b3 Rg2+ 34. Qxg2 Rxg2+ 35. Kxg2 Qxa2+ 36. Kh1 Qxb3 37. Ne2 Qc4 38. R1f2 Qxe4+ 39. Kh2 Nd3 40. Rf1 Qxe2+ 41. Kg1 Qe3+ 42. Kh2 Qg3+ 43. Kh1 Qxh3+ 44. Kg1 Qg3+ 0-1

[Event "Pan American-ch U18"]
[Site "Bogota"]
[Date "2003.06.??"]
[Round "4"]
[White "Diaz, Robert"]
[Black "Sierra Garcia, Juan"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2254"]
[PlyCount "53"]
[EventDate "2003.06.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 e6 5. Nf3 cxd4 6. Bc4 Nb6 7. Bb3 d3 8. Qxd3 d5 9. 0-0 Nc6 10. Re1 Be7 11. Bf4 Nd7 12. Qe2 0-0 13. Bc2 Re8 14. Nbd2 Qc7 15. h4 b5 16. Qxb5 Rb8 17. Qd3 g6 18. Nb3 a5 19. Rab1 a4 20. Nbd4 Nc5 21. Qe3 Na5 22. h5 Nc4 23. Qc1 Ba6 24. b3 Nb6 25. Qe3 a3 26. Ng5 Bf8 27. Qg3 1-0

[Event "Pan American-ch U18"]
[Site "Bogota"]
[Date "2003.06.??"]
[Round "5"]
[White "Mieles Palau, Daniel Alberto"]
[Black "Sierra Garcia, Juan"]
[Result "1-0"]
[ECO "B91"]
[WhiteElo "2426"]
[PlyCount "70"]
[EventDate "2003.06.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. Nf3 Nf6 4. d4 cxd4 5. Nxd4 a6 6. g3 e5 7. Nb3 Be6 8. Bg2 Nbd7 9. 0-0 Be7 10. Nd5 0-0 11. Nxe7+ Qxe7 12. f4 h6 13. f5 Bc4 14. Rf2 Rfd8 15. Na5 d5 16. b3 Bb5 17. exd5 Nc5 18. c4 Be8 19. Be3 Rac8 20. Bxc5 Rxc5 21. b4 Rcc8 22. c5 b6 23. d6 Qa7 24. Nb7 bxc5 25. bxc5 e4 26. Nxd8 Rxd8 27. Qd4 Bc6 28. Re2 Qb7 29. Rc1 Re8 30. h3 h5 31. g4 hxg4 32. hxg4 Nxg4 33. Bxe4 Bxe4 34. Rxe4 Rxe4 35. c6 Re2 1-0

[Event "Pan American-ch U18"]
[Site "Bogota"]
[Date "2003.06.??"]
[Round "7"]
[White "Sierra Garcia, Juan"]
[Black "Echeverry Alvira, Santiago"]
[Result "0-1"]
[ECO "C40"]
[PlyCount "109"]
[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 Qe7 3. Bc4 c6 4. 0-0 d6 5. h3 h6 6. d4 Qc7 7. Be3 Nf6 8. Nc3 b5 9. Bb3 Be7 10. a3 Nbd7 11. dxe5 dxe5 12. Nh4 g6 13. Qf3 Nf8 14. Rad1 Ne6 15. Qe2 Nh5 16. Bxe6 Bxe6 17. Nf5 gxf5 18. Qxh5 f4 19. Bc1 Bf6 20. b3 Ke7 21. Qf3 Rag8 22. Nd5+ cxd5 23. exd5 Bxd5 24. Qxd5 a6 25. a4 b4 26. Qe4 Kf8 27. Qxb4+ Be7 28. Qe4 Rg6 29. Kh1 Rhg8 30. Rg1 Qc8 31. Bb2 f6 32. Rd3 Qe6 33. Kh2 Kg7 34. Qb7 Kh8 35. Qd7 Qxd7 36. Rxd7 Bc5 37. Rd2 e4 38. g4 fxg3+ 39. fxg3 Bxg1+ 40. Kxg1 Rxg3+ 41. Kh2 Rf3 42. Re2 e3 43. Bd4 Rf2+ 44. Rxf2 exf2 45. Bxf2 Rc8 46. c4 Rb8 47. Bd4 Kg7 48. c5 Rxb3 49. c6 Rb4 50. c7 Rc4 51. Bb6 Kf7 52. Kg3 Ke7 53. h4 Kd7 54. a5 h5 55. Kh3 0-1

