[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2005.10.21"]
[Round "9"]
[White "Munoz, Mario Julian"]
[Black "Marquez, Alejandro Esteban"]
[Result "1/2-1/2"]
[ECO "B08"]
[WhiteElo "1800"]
[BlackElo "1800"]
[PlyCount "35"]
[EventDate "2005.10.16"]
[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 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Bc4 c6 6. Bb3 0-0 7. 0-0 Bg4 8. Be3 Nbd7 9. h3 Bxf3 10. Qxf3 c5 11. Rad1 Qa5 12. a3 cxd4 13. Bxd4 Nc5 14. Nd5 Nxd5 15. Bxd5 Bxd4 16. Rxd4 e6 17. Bb3 Nxb3 18. Qxb3 1/2-1/2

[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2005.10.20"]
[Round "8"]
[White "Marquez, Alejandro Esteban"]
[Black "Tapia Aguilera, Carlos S"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "1800"]
[BlackElo "1800"]
[PlyCount "80"]
[EventDate "2005.10.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nxd4 5. Qxd4 d6 6. Bc4 Be6 7. Bxe6 fxe6 8. 0-0 Nf6 9. Nc3 Be7 10. Re1 e5 11. Qd3 Qd7 12. Nd5 0-0-0 13. Qa3 Nxd5 14. exd5 a6 15. b4 Qb5 16. Qb3 c5 17. dxc6 Qxc6 18. Re3 Kb8 19. Rc3 Qe4 20. Be3 d5 21. Bc5 Bxc5 22. bxc5 d4 23. c6 Rd7 24. cxd7 dxc3 25. Qxc3 Rd8 26. Rd1 Qf4 27. Qc5 Rxd7 28. Re1 Qf6 29. g3 Re7 30. Qd5 Re6 31. Rb1 b6 32. Re1 e4 33. Rxe4 Rxe4 34. Qxe4 Qa1+ 35. Kg2 Qxa2 36. Qxh7 Qa1 37. Qd3 a5 38. Qd8+ Kb7 39. Qd7+ Ka6 40. Qd3+ Kb7 1/2-1/2

[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2005.10.19"]
[Round "7"]
[White "Marquez, Alejandro Esteban"]
[Black "Perez Pineda, Elkin Dario"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "1800"]
[BlackElo "1800"]
[PlyCount "36"]
[EventDate "2005.10.16"]
[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 exd4 4. Nxd4 Bc5 5. Be3 Qh4 6. Nc3 d6 7. Bc4 Ne5 8. Be2 Nf6 9. Bf3 0-0 10. 0-0 Bg4 11. h3 Bxd4 12. hxg4 Nexg4 13. Bxg4 Nxg4 14. Re1 Bxe3 15. fxe3 Qf2+ 16. Kh1 Qh4+ 17. Kg1 Qh2+ 18. Kf1 Qh4 0-1

[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2005.10.17"]
[Round "3"]
[White "Diaz Cristian, Camilo"]
[Black "Marquez, Alejandro Esteban"]
[Result "0-1"]
[ECO "B08"]
[WhiteElo "1800"]
[BlackElo "1800"]
[PlyCount "74"]
[EventDate "2005.10.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. Be3 c6 6. h3 b5 7. a3 0-0 8. Nf3 Bb7 9. 0-0 Qc7 10. Qd2 Nbd7 11. Bh6 a6 12. Bxg7 Kxg7 13. Rfe1 c5 14. d5 b4 15. axb4 cxb4 16. Na2 a5 17. Bd3 Nc5 18. b3 Ba6 19. Bxa6 Rxa6 20. Qd4 e5 21. Qc4 Ra7 22. Nd2 Rc8 23. c3 bxc3 24. Nxc3 Qb8 25. Qb5 Rb7 26. Qxa5 Nxb3 27. Nxb3 Rxb3 28. Ra3 Rcxc3 29. Rxb3 Rxb3 30. f3 Qb6+ 31. Qxb6 Rxb6 32. Kf2 Rb2+ 33. Kg3 Nh5+ 34. Kh2 Nf4 35. Rg1 f5 36. exf5 gxf5 37. h4 Nxd5 0-1

[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2005.10.16"]
[Round "1"]
[White "Osorio, Cristhian Camilo"]
[Black "Marquez, Alejandro Esteban"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2189"]
[BlackElo "1800"]
[PlyCount "51"]
[EventDate "2005.10.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bc4 Bg7 5. Nge2 c6 6. Bb3 0-0 7. f3 Nbd7 8. Be3 c5 9. Qd2 cxd4 10. Nxd4 Nc5 11. Bh6 Qb6 12. Bxg7 Kxg7 13. 0-0-0 a5 14. Na4 Nxa4 15. Bxa4 Bd7 16. Bxd7 Nxd7 17. h4 h5 18. g4 Rh8 19. Qg5 Kf8 20. f4 Nf6 21. f5 Nxe4 22. Qe3 Nc5 23. fxg6 fxg6 24. gxh5 gxh5 25. Qg5 Qc7 26. Qg6 1-0

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2004.07.28"]
[Round "8"]
[White "Marquez, Alejandro Esteban"]
[Black "Perez, Maximiliano"]
[Result "0-1"]
[ECO "B35"]
[PlyCount "41"]
[EventDate "2004.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 Qa5 8. Nxc6 bxc6 9. Qf3 0-0 10. 0-0 Bb7 11. Rad1 Rad8 12. Bb3 d5 13. exd5 cxd5 14. Bd4 Ne4 15. Bxg7 Kxg7 16. Nxe4 dxe4 17. Qf4 Rxd1 18. Rxd1 e5 19. Qg5 Qc7 20. Qd2 Rc8 21. Qd7 0-1

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2004.07.28"]
[Round "7"]
[White "Osorio, Diego Felipe"]
[Black "Marquez, Alejandro Esteban"]
[Result "0-1"]
[ECO "B07"]
[PlyCount "38"]
[EventDate "2004.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 d6 2. Nc3 Nf6 3. Nf3 c6 4. Bc4 b5 5. Bb3 b4 6. Ne2 Nxe4 7. d3 Nc5 8. Be3 Nbd7 9. c4 Bb7 10. Nd2 Nxb3 11. Nxb3 c5 12. Ng3 g6 13. 0-0 Bg7 14. Re1 0-0 15. Nd2 Qc7 16. Nde4 Ne5 17. Ng5 Qc6 18. f3 d5 19. Qc1 Rfe8 0-1

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2004.07.27"]
[Round "6"]
[White "Marquez, Alejandro Esteban"]
[Black "Guerrero, Gustavo Adolfo"]
[Result "1/2-1/2"]
[ECO "B41"]
[PlyCount "48"]
[EventDate "2004.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Bd3 0-0 8. 0-0 d5 9. cxd5 exd5 10. Nxd5 Nxd5 11. exd5 Qxd5 12. Nc2 Qa5 13. Nxb4 Qxb4 14. a3 Qh4 15. Be3 Nc6 16. Qd2 h6 17. f4 Bg4 18. Qf2 Qxf2+ 19. Rxf2 Rfe8 20. Bb6 Be6 21. Re1 Bb3 22. Rfe2 Rxe2 23. Rxe2 f6 24. Bg6 Bf7 1/2-1/2

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2004.07.26"]
[Round "5"]
[White "Guerra, Jose Manuel"]
[Black "Marquez, Alejandro Esteban"]
[Result "1-0"]
[ECO "B08"]
[PlyCount "44"]
[EventDate "2004.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. Nf3 g6 5. Be2 Bg7 6. 0-0 0-0 7. Bf4 b5 8. a3 Bg4 9. h3 Bxf3 10. Bxf3 Re8 11. Bh2 Qb6 12. e5 dxe5 13. dxe5 Nfd7 14. Re1 Nc5 15. Qd4 Rd8 16. Qe3 a6 17. Rad1 Rc8 18. e6 fxe6 19. Bg4 Kh8 20. Bxe6 Rf8 21. b4 Na4 22. Nxa4 bxa4 1-0

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2004.07.26"]
[Round "4"]
[White "Marquez, Alejandro Esteban"]
[Black "Naranjo, Sergio"]
[Result "1-0"]
[ECO "E65"]
[PlyCount "46"]
[EventDate "2004.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 d6 5. d4 e6 6. c4 0-0 7. Nc3 c5 8. e3 Nbd7 9. b3 e5 10. Bb2 e4 11. Nd2 cxd4 12. exd4 b6 13. Ndxe4 Nxe4 14. Nxe4 Rb8 15. Nxd6 Nf6 16. Nxc8 Rxc8 17. d5 Ne8 18. Bxg7 Nxg7 19. Bh3 Rc7 20. Re1 f5 21. Qd2 Qd6 22. f4 Ne6 23. Rxe6 Qc5+ 1-0

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2004.07.25"]
[Round "2"]
[White "Marquez, Alejandro Esteban"]
[Black "Kaufman, Harris"]
[Result "1/2-1/2"]
[ECO "B96"]
[PlyCount "73"]
[EventDate "2004.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nbd7 8. Qf3 Qc7 9. 0-0-0 b5 10. g4 b4 11. Nce2 Bb7 12. Ng3 Be7 13. Bxf6 Bxf6 14. g5 Bxd4 15. Rxd4 Rc8 16. Rd2 d5 17. Bd3 Nc5 18. Kb1 dxe4 19. Bxe4 Nxe4 20. Nxe4 0-0 21. Re1 Bd5 22. Qg4 Kh8 23. Nf2 Qc4 24. b3 Qc3 25. Qe2 a5 26. Qe3 Rc7 27. Ng4 a4 28. Qxc3 Rxc3 29. Re3 axb3 30. axb3 Rfc8 31. Rxc3 Rxc3 32. Rd4 Rc8 33. Rxb4 Kg8 34. Rd4 Rb8 35. Kb2 Rf8 36. Ne5 Re8 37. Nd7 1/2-1/2

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2004.07.24"]
[Round "1"]
[White "Alvarez, Luis Fernando"]
[Black "Marquez, Alejandro Esteban"]
[Result "1/2-1/2"]
[ECO "B07"]
[PlyCount "60"]
[EventDate "2004.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bd3 e5 5. dxe5 dxe5 6. Nf3 Bg4 7. h3 Bxf3 8. Qxf3 Bg7 9. Bg5 Nbd7 10. Bc4 c6 11. Rd1 Qe7 12. 0-0 Rd8 13. Rd2 0-0 14. Rfd1 Nc5 15. Bxf6 Bxf6 16. Rxd8 Rxd8 17. Rxd8+ Qxd8 18. Qe3 Qd4 19. Bd3 Qxe3 20. fxe3 Nxd3 21. cxd3 Kf8 22. Kf2 Ke7 23. Ne2 Kd6 24. d4 a5 25. b3 b5 26. Ke1 Bg5 27. Kf2 Bf6 28. Ke1 Bg5 29. Kf2 Bf6 30. Ke1 Bg5 1/2-1/2

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2003.06.??"]
[Round "7"]
[White "Arias, Juan"]
[Black "Marquez, Alejandro Esteban"]
[Result "1/2-1/2"]
[ECO "B12"]
[PlyCount "59"]
[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 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Bd3 Ne7 6. Bg5 Bxd3 7. Qxd3 Qc7 8. Nc3 Nf5 9. Ne2 Be7 10. Bf4 Nd7 11. Ng3 Nxg3 12. Bxg3 c5 13. c3 cxd4 14. cxd4 Bb4+ 15. Nd2 Rc8 16. a3 Be7 17. Bf4 0-0 18. 0-0 Nb6 19. Rac1 Qd7 20. Qg3 Kh8 21. Bg5 Rxc1 22. Rxc1 Bxg5 23. Qxg5 Rc8 24. Rxc8+ Qxc8 25. Qe7 Kg8 26. h3 g6 27. Qb4 Kg7 28. Kh2 Qc2 29. Kg3 Qc7 30. f4 1/2-1/2

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2003.06.??"]
[Round "4"]
[White "Perez Olarte, Cesar Camilo"]
[Black "Marquez, Alejandro Esteban"]
[Result "1-0"]
[ECO "B17"]
[PlyCount "51"]
[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 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. c3 Ngf6 6. Bd3 e6 7. Nf3 Nxe4 8. Bxe4 Bd6 9. 0-0 0-0 10. Bc2 Nf6 11. Qd3 Qc7 12. Bg5 Re8 13. Bxf6 gxf6 14. Qxh7+ Kf8 15. Rae1 Bd7 16. g3 Qb6 17. Nd2 Bb8 18. Qh6+ Ke7 19. Ne4 Kd8 20. Qxf6+ Re7 21. c4 a6 22. c5 Qxb2 23. Bb3 Qa3 24. h4 a5 25. h5 a4 26. h6 1-0

