[Event "Pan American-ch U18"]
[Site "Bogota"]
[Date "2003.06.11"]
[Round "3"]
[White "Gerson, Leon"]
[Black "Echeverria, Mario Armando"]
[Result "0-1"]
[ECO "B95"]
[WhiteElo "2160"]
[PlyCount "64"]
[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 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Qd2 Be7 8. 0-0-0 0-0 9. f4 Qc7 10. Bd3 b5 11. Nce2 Bb7 12. Bxf6 Bxf6 13. g4 Qb6 14. Nf3 Nd7 15. g5 Be7 16. Rhf1 Nc5 17. Ng3 f6 18. Qe2 fxg5 19. fxg5 Rac8 20. h4 Qa5 21. Kb1 Na4 22. Qd2 b4 23. Nd4 d5 24. Rxf8+ Bxf8 25. e5 Qc7 26. Qe2 g6 27. Nxe6 Qb6 28. Bb5 Qxb5 29. Qxb5 axb5 30. Nd4 Bg7 31. Re1 Re8 32. Nxb5 Rxe5 0-1

[Event "Pan American-ch U18"]
[Site "Bogota"]
[Date "2003.06.09"]
[Round "2"]
[White "Gomez, William"]
[Black "Gerson, Leon"]
[Result "1/2-1/2"]
[ECO "C05"]
[BlackElo "2160"]
[PlyCount "74"]
[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 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. f4 c5 6. Ngf3 Nc6 7. c3 Qb6 8. Nb3 Be7 9. Be2 0-0 10. 0-0 a5 11. dxc5 Nxc5 12. Be3 a4 13. Nxc5 Bxc5 14. Bxc5 Qxc5+ 15. Kh1 f6 16. Qd2 b6 17. Bd3 f5 18. Rad1 Bb7 19. Qf2 Qxf2 20. Rxf2 Ba6 21. Bxa6 Rxa6 22. Nd4 Nxd4 23. Rxd4 Rc8 24. a3 b5 25. Kg1 Rc4 26. Rfd2 Kf7 27. Kf2 Ke7 28. Ke3 Kd7 29. Rd1 Rac6 30. R1d3 Rxd4 31. Rxd4 Rc4 32. Kd3 Kc6 33. Ke3 Kc5 34. Kd3 Kc6 35. Ke3 Kc5 36. Kd3 Kc6 37. Ke3 Kc5 1/2-1/2

[Event "Pan American-ch U18"]
[Site "Bogota"]
[Date "2003.06.08"]
[Round "1"]
[White "Gerson, Leon"]
[Black "Otazo, Gibran"]
[Result "1/2-1/2"]
[ECO "B33"]
[WhiteElo "2160"]
[PlyCount "68"]
[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. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 d6 7. Bf4 e5 8. Bg5 a6 9. Na3 b5 10. Bxf6 gxf6 11. Nd5 Bg7 12. Bd3 Ne7 13. Nxe7 Qxe7 14. 0-0 0-0 15. c4 bxc4 16. Nxc4 f5 17. exf5 e4 18. Bc2 Bxf5 19. Qxd6 Qg5 20. Rab1 Rae8 21. Qg3 Qxg3 22. hxg3 Be6 23. b3 Bxc4 24. bxc4 e3 25. fxe3 Rxe3 26. Rbd1 Rxg3 27. Rf3 Rxf3 28. gxf3 Rc8 29. Bb3 Bf8 30. f4 Kg7 31. Kg2 Kf6 32. Kf3 a5 33. Rd5 Rc5 34. Rxc5 Bxc5 1/2-1/2

[Event "Pan American-ch U18"]
[Site "Bogota"]
[Date "2003.06.??"]
[Round "7"]
[White "Gerson, Leon"]
[Black "Pinzon, Jairo David"]
[Result "1/2-1/2"]
[ECO "B66"]
[WhiteElo "2160"]
[PlyCount "102"]
[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. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. 0-0-0 a6 9. f4 Nxd4 10. Qxd4 b5 11. Bxf6 gxf6 12. Kb1 Qc7 13. Be2 Bb7 14. g4 Qc5 15. Qxc5 dxc5 16. Bf3 Rd8 17. Kc1 Bd6 18. Ne2 Ke7 19. Rhf1 Bc7 20. e5 Rxd1+ 21. Kxd1 Rd8+ 22. Kc1 Bd5 23. Bxd5 Rxd5 24. exf6+ Kxf6 25. Rf3 h5 26. h3 Ba5 27. c3 Bc7 28. Kc2 hxg4 29. hxg4 c4 30. Nd4 Bb6 31. Ne2 Rd8 32. a3 Rh8 33. Kd2 Rh2 34. Rg3 Bc7 35. Ke3 Rh1 36. Rg2 Rf1 37. Rf2 Bb6+ 38. Nd4 Rxf2 39. Kxf2 e5 40. g5+ Kg6 41. fxe5 Bxd4+ 42. cxd4 Kxg5 43. d5 Kf5 44. d6 Ke6 45. Ke3 f6 46. exf6 Kxf6 47. Kd4 Ke6 48. Kc5 Kd7 49. a4 bxa4 50. Kxc4 Kxd6 51. Kb4 a3 1/2-1/2

