[Event "Buenos Aires Najdorf U14/16"]
[Site "Buenos Aires"]
[Date "2004.10.08"]
[Round "5"]
[White "De Urquiza, Sebastian"]
[Black "Marques, Marcos"]
[Result "0-1"]
[ECO "B07"]
[PlyCount "53"]
[EventDate "2004.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[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. h4 c6 5. Be2 Nbd7 6. h5 b5 7. a3 Bb7 8. Be3 a6 9. Qd2 Qc7 10. g4 c5 11. d5 b4 12. axb4 cxb4 13. Nd1 gxh5 14. gxh5 Nxe4 15. Qxb4 Bxd5 16. Qd4 Nef6 17. Rxa6 Bxh1 18. Rxa8+ Bxa8 19. Nc3 e5 20. Qa4 Bc6 21. Qb3 Rg8 22. Nh3 h6 23. Bc4 Nc5 24. Bxc5 dxc5 25. Nb5 Qd7 26. Qe3 e4 27. Nc3 0-1

[Event "Buenos Aires Najdorf U14/16"]
[Site "Buenos Aires"]
[Date "2004.10.08"]
[Round "6"]
[White "Marques, Marcos"]
[Black "Blanc, Pablo"]
[Result "1/2-1/2"]
[ECO "D20"]
[PlyCount "39"]
[EventDate "2004.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. e4 e5 4. Nf3 exd4 5. Bxc4 Nc6 6. Qb3 Qf6 7. Bg5 Qg6 8. Nbd2 Bb4 9. 0-0-0 Nge7 10. h4 0-0 11. h5 Qd6 12. e5 Bxd2+ 13. Rxd2 Qc5 14. Qc2 Qb6 15. Bxe7 Nxe7 16. Nxd4 Rd8 17. Rh4 Bd7 18. Rf4 Rf8 19. Nf3 Be6 20. Ng5 1/2-1/2

[Event "Buenos Aires Najdorf U14/16"]
[Site "Buenos Aires"]
[Date "2004.10.08"]
[Round "7"]
[White "Marques, Marcos"]
[Black "Zeta, Rodrigo"]
[Result "1-0"]
[ECO "C00"]
[PlyCount "67"]
[EventDate "2004.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e6 2. c4 d5 3. e5 d4 4. Nf3 c5 5. d3 Nc6 6. Be2 Nge7 7. Bd2 Ng6 8. Qc2 Ngxe5 9. Nxe5 Nxe5 10. f4 Ng6 11. a3 Bd6 12. g3 h5 13. h4 e5 14. fxe5 Bxe5 15. Rg1 Qd6 16. Bf4 Bxf4 17. gxf4 Qxf4 18. Nd2 Qxh4+ 19. Kd1 Nf4 20. Nf3 Qf2 21. Re1 Nxe2 22. Rxe2+ Qxe2+ 23. Qxe2+ Be6 24. Ng5 Kd7 25. Kd2 Rae8 26. Nxe6 Rxe6 27. Qf3 Rhe8 28. Qxb7+ Kd6 29. Rf1 h4 30. Qd5+ Ke7 31. Qxc5+ Kd8 32. Qxd4+ Kc8 33. Qxg7 Rd6 34. Qxf7 1-0

[Event "Buenos Aires Najdorf U14/16"]
[Site "Buenos Aires"]
[Date "2004.10.07"]
[Round "3"]
[White "Centurion, Adrian"]
[Black "Marques, Marcos"]
[Result "1-0"]
[ECO "B50"]
[PlyCount "45"]
[EventDate "2004.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. d3 Nc6 5. h3 e6 6. Bg5 Be7 7. Nbd2 a6 8. a4 0-0 9. d4 cxd4 10. cxd4 Qb6 11. Nc4 Qb4+ 12. Bd2 Qxc4 13. Bxc4 Nxe4 14. Bd3 Nf6 15. Bb1 e5 16. Qc2 exd4 17. Ng5 g6 18. h4 Bf5 19. Qb3 Bc8 20. h5 Kg7 21. hxg6 fxg6 22. Qg3 Nd5 23. Nxh7 1-0

[Event "Buenos Aires Najdorf U14/16"]
[Site "Buenos Aires"]
[Date "2004.10.07"]
[Round "4"]
[White "Marques, Marcos"]
[Black "Carril, Daniel"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "27"]
[EventDate "2004.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. 0-0 Nc6 6. c4 e6 7. b3 a6 8. Ba3 b5 9. Ne5 Nxd4 10. Qxd4 Bd7 11. cxd5 exd5 12. Bxd5 Nxd5 13. Qxd5 Bxe5 14. Qxe5+ 1-0

[Event "Buenos Aires Najdorf U14/16"]
[Site "Buenos Aires"]
[Date "2004.10.07"]
[Round "1"]
[White "Marques, Marcos"]
[Black "Ochoa, Matias"]
[Result "0-1"]
[ECO "B74"]
[BlackElo "1911"]
[PlyCount "68"]
[EventDate "2004.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[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 g6 6. Be2 Bg7 7. Be3 Nc6 8. Nb3 0-0 9. 0-0 Bd7 10. f4 Rc8 11. Bf3 Qc7 12. a4 Qb8 13. Kh1 Rfd8 14. g4 e6 15. g5 Ne8 16. Bg4 b6 17. Nd4 Qb7 18. Kg1 a6 19. Re1 Nc7 20. Nde2 d5 21. e5 Na5 22. b3 Nc6 23. Nd4 Nxd4 24. Qxd4 b5 25. Qb6 Bc6 26. Qxb7 Bxb7 27. Bb6 d4 28. Ne2 d3 29. cxd3 Rxd3 30. Rac1 Nd5 31. Rxc8+ Bxc8 32. Ba5 Rxb3 33. Rc1 Bb7 34. axb5 Rxb5 0-1

[Event "Buenos Aires Najdorf U14/16"]
[Site "Buenos Aires"]
[Date "2004.10.07"]
[Round "2"]
[White "Vincent, Damian Matias"]
[Black "Marques, Marcos"]
[Result "1-0"]
[ECO "D91"]
[PlyCount "79"]
[EventDate "2004.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d5 3. Nc3 c6 4. Bg5 Nbd7 5. e3 g6 6. Nf3 Bg7 7. Bd3 0-0 8. 0-0 Re8 9. h3 dxc4 10. Bxc4 b5 11. Bd3 Nb6 12. Rc1 Be6 13. a3 Nc4 14. Qc2 Rc8 15. Rfd1 Qb6 16. Bxf6 Bxf6 17. Ne4 Na5 18. Nc5 Bc4 19. b4 Bxd3 20. Nxd3 Nc4 21. Qc3 Ra8 22. Nd2 Nxd2 23. Rxd2 Rec8 24. Ra2 Bg7 25. Qb3 Qd8 26. Rac2 Qd6 27. Rc5 Rc7 28. Qc3 Rac8 29. Rc2 e6 30. Nc1 Bf8 31. Qd3 Qd8 32. R5c3 Qg5 33. f4 Qd8 34. Nb3 Qd7 35. Rc1 f5 36. R1c2 Be7 37. Qd1 Qd8 38. Qc1 Bf6 39. Rxc6 Rxc6 40. Rxc6 1-0

[Event "Najdorf U14 op"]
[Site "Buenos Aires"]
[Date "2003.10.04"]
[Round "5.4"]
[White "Goldwaser, Christian"]
[Black "Marques, Marcos"]
[Result "1/2-1/2"]
[ECO "D73"]
[PlyCount "64"]
[EventDate "2003.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 0-0 5. Bg2 c6 6. 0-0 d5 7. cxd5 cxd5 8. Ne5 Nc6 9. Nxc6 bxc6 10. Nc3 Rb8 11. Na4 Nd7 12. Be3 Ba6 13. Rc1 Qa5 14. b3 Bb5 15. Nc3 e5 16. Nxb5 Qxb5 17. dxe5 Bxe5 18. Qc2 Rfc8 19. Bxa7 Ra8 20. Be3 Ra3 21. Rfd1 Rc7 22. Rd2 Qa6 23. f4 d4 24. Bxd4 Bxd4+ 25. Rxd4 Rxa2 26. Qd3 Qxd3 27. Rxd3 Rxe2 28. Rxc6 Ra7 29. Rc1 Nf6 30. Bf3 Rb2 31. Rc8+ Kg7 32. Ra8 Rc7 1/2-1/2

[Event "Najdorf U14 op"]
[Site "Buenos Aires"]
[Date "2003.10.04"]
[Round "7.10"]
[White "Marques, Marcos"]
[Black "Pacho, Jano"]
[Result "0-1"]
[ECO "E80"]
[PlyCount "78"]
[EventDate "2003.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 Nfd7 6. Be3 c5 7. Nge2 Nc6 8. d5 Nce5 9. Nc1 Nb6 10. Be2 Bd7 11. Qb3 Qc7 12. h3 a5 13. a4 f5 14. f4 Nf7 15. 0-0 0-0 16. Nd3 e5 17. dxe6 Bxe6 18. exf5 Bxc4 19. Qc2 gxf5 20. g4 fxg4 21. hxg4 Rae8 22. Nd1 Qc6 23. Bf3 Bd5 24. Qg2 Bxf3 25. Qxf3 Qxf3 26. Rxf3 Nc4 27. Kg2 Nd8 28. Rc1 Nxe3+ 29. Nxe3 Ne6 30. Nf5 Nd4 31. Nxg7 Kxg7 32. Rf2 Re3 33. Rd1 Rfe8 34. Nc1 Re1 35. Rxe1 Rxe1 36. Nd3 Rd1 37. Nxc5 dxc5 38. Kg3 Rb1 39. b3 Rxb3+ 0-1

[Event "Najdorf U14 op"]
[Site "Buenos Aires"]
[Date "2003.10.04"]
[Round "4.5"]
[White "Marques, Marcos"]
[Black "Rodriguez Vargas, Sergio"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "83"]
[EventDate "2003.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 e6 3. Nf3 Nf6 4. e3 b6 5. Nc3 Bd6 6. Bxd6 Qxd6 7. Bd3 Bb7 8. 0-0 c6 9. e4 Nxe4 10. Nxe4 dxe4 11. Bxe4 Nd7 12. c3 Nf6 13. Bd3 0-0 14. Nd2 Nd5 15. Ne4 Qe7 16. Qh5 f5 17. Ng5 h6 18. Nh3 Qf7 19. Qxf7+ Rxf7 20. Rae1 Rf6 21. Bc4 g5 22. Bxd5 exd5 23. Re7 Rf7 24. Rfe1 Raf8 25. f4 g4 26. Nf2 Ba6 27. Nd1 Rxe7 28. Rxe7 Rf7 29. Re6 Kg7 30. Kf2 Rf6 31. Re7+ Rf7 32. Re5 Bd3 33. Ne3 Be4 34. c4 dxc4 35. Nxc4 Rd7 36. Ke3 Kf6 37. g3 Re7 38. Nd6 Bb1 39. a3 Rxe5+ 40. fxe5+ Ke6 41. Kf4 c5 42. Nxf5 1-0

[Event "Najdorf U14 op"]
[Site "Buenos Aires"]
[Date "2003.10.04"]
[Round "6.5"]
[White "Tokman, Ariel"]
[Black "Marques, Marcos"]
[Result "1-0"]
[ECO "A45"]
[PlyCount "39"]
[EventDate "2003.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 d5 4. e3 Bf5 5. Bd3 e6 6. f3 Nd6 7. Ne2 Bxd3 8. cxd3 Nc6 9. 0-0 Nf5 10. Nbc3 g5 11. g4 gxf4 12. gxf5 Rg8+ 13. Kh1 Qh4 14. Nxf4 Bd6 15. fxe6 fxe6 16. Qe1 Qxe1 17. Raxe1 Bxf4 18. exf4 Nxd4 19. Nxd5 0-0-0 20. Ne7+ 1-0

[Event "Najdorf U14 op"]
[Site "Buenos Aires"]
[Date "2003.10.03"]
[Round "3.11"]
[White "Coronel, Gabriel"]
[Black "Marques, Marcos"]
[Result "0-1"]
[ECO "B08"]
[PlyCount "60"]
[EventDate "2003.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 Bg7 5. Nf3 0-0 6. Bc4 c6 7. 0-0 b5 8. Bb3 b4 9. Ne2 Nxe4 10. Ng3 Nxg3 11. fxg3 d5 12. Qd2 a5 13. c3 Ba6 14. Rfe1 bxc3 15. bxc3 Nd7 16. Ba4 Nb6 17. Bb3 a4 18. Bc2 Nc4 19. Qf2 Rb8 20. Bxa4 Rb2 21. Re2 Rxe2 22. Qxe2 Qa5 23. Bxc6 Ne5 24. Qd2 Nxc6 25. Rc1 Bc4 26. Bh6 Qxa2 27. Rc2 Bxh6 28. Qxh6 Qxc2 29. Ng5 Qd1+ 30. Kf2 Qe2+ 0-1

[Event "Najdorf U14 op"]
[Site "Buenos Aires"]
[Date "2003.10.03"]
[Round "1.17"]
[White "Juliarena, Agustin"]
[Black "Marques, Marcos"]
[Result "1/2-1/2"]
[ECO "E85"]
[PlyCount "53"]
[EventDate "2003.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 Nc6 7. Qd2 e5 8. Nge2 a6 9. d5 Ne7 10. g4 Ne8 11. Ng3 f5 12. gxf5 gxf5 13. Bg5 f4 14. Nh5 Nf6 15. Nxg7 Kxg7 16. Rg1 Ng6 17. Qg2 Qe8 18. 0-0-0 Bd7 19. Bd3 b5 20. Bxf6+ Rxf6 21. h4 h5 22. Qf2 b4 23. Ne2 a5 24. Rg5 Kh6 25. Rdg1 b3 26. a3 Qf7 27. Qg2 1/2-1/2

[Event "Najdorf U14 op"]
[Site "Buenos Aires"]
[Date "2003.10.03"]
[Round "2.22"]
[White "Marques, Marcos"]
[Black "Meza, Hugo"]
[Result "1-0"]
[ECO "A61"]
[PlyCount "81"]
[EventDate "2003.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Bg5 h6 8. Bf4 a6 9. e4 Nh5 10. Be3 Bg7 11. Be2 0-0 12. Qd2 Kh7 13. h3 Nf6 14. e5 dxe5 15. Bxc5 Re8 16. 0-0 b6 17. Be3 Bb7 18. Rfe1 Nbd7 19. Rac1 Ng8 20. d6 f5 21. Na4 f4 22. Rc7 fxe3 23. Qxe3 Bxf3 24. Bxf3 Rb8 25. Bc6 Ngf6 26. Qf3 Rf8 27. Nc3 Rc8 28. Bxd7 Nxd7 29. Qb7 Rb8 30. Qxa6 Rf7 31. Qc4 Qf6 32. Ne4 Qf4 33. Re3 b5 34. Qd5 Rff8 35. Rxd7 Rbc8 36. Re1 Rc4 37. Qb7 Rg8 38. Ng3 Rc2 39. Rf1 Rxb2 40. Rc7 Rxa2 41. d7 1-0

