[Event "Pan American-ch U16"]
[Site "Bogota"]
[Date "2004.07.30"]
[Round "9"]
[White "Perez, Francisco"]
[Black "Vergara Echeverri, Daniel"]
[Result "1-0"]
[ECO "C86"]
[WhiteElo "2125"]
[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 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Qe2 d6 7. c3 0-0 8. Rd1 Bg4 9. d4 b5 10. Bc2 Re8 11. d5 Nb8 12. a4 Nbd7 13. Nbd2 Nc5 14. a5 Rb8 15. b4 Ncd7 16. h3 Bxf3 17. Nxf3 Nf8 18. c4 Ng6 19. g3 Qd7 20. cxb5 axb5 21. Kg2 c5 22. Be3 cxb4 23. Rdb1 Rec8 24. Rxb4 Bd8 25. a6 Bb6 1-0

[Event "Pan American-ch U16"]
[Site "Bogota"]
[Date "2004.07.28"]
[Round "7"]
[White "Martinez Leon, Camilo"]
[Black "Perez, Francisco"]
[Result "1/2-1/2"]
[ECO "B20"]
[BlackElo "2125"]
[PlyCount "53"]
[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. b3 Nc6 3. g3 d6 4. Bb2 e6 5. Bg2 Nf6 6. Ne2 g6 7. 0-0 Bg7 8. f4 0-0 9. h3 c4 10. Nbc3 d5 11. e5 Nd7 12. Ba3 Re8 13. Kh2 Qa5 14. Bd6 b5 15. a4 b4 16. Nb5 Nb6 17. Nc7 Rd8 18. Nxa8 Nxa8 19. bxc4 Nc7 20. c3 Ne8 21. cxb4 Nxb4 22. Bxb4 Qxb4 23. cxd5 exd5 24. Rb1 Qe7 25. Nc3 Qc5 26. Nb5 Bf5 27. d4 1/2-1/2

[Event "Pan American-ch U16"]
[Site "Bogota"]
[Date "2004.07.28"]
[Round "8"]
[White "Miran Paez, David"]
[Black "Perez, Francisco"]
[Result "0-1"]
[ECO "B33"]
[BlackElo "2125"]
[PlyCount "67"]
[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. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 0-0 12. h4 Be6 13. Nc2 Bxd5 14. exd5 Ne7 15. g3 g6 16. Bg2 Bg7 17. h5 Qb6 18. hxg6 fxg6 19. Qd2 Rf7 20. Bh3 Rf6 21. Ne3 Raf8 22. Rh2 Nf5 23. Nxf5 gxf5 24. Bg2 f4 25. gxf4 Rxf4 26. Bh3 Re4+ 27. Kd1 Ref4 28. Be6+ Kh8 29. Qc2 e4 30. Ke1 h5 31. Rd1 e3 32. Qg6 R4f6 33. Qg5 exf2+ 34. Kd2 0-1

[Event "Pan American-ch U16"]
[Site "Bogota"]
[Date "2004.07.26"]
[Round "4"]
[White "Agreda, Mario Alberto"]
[Black "Perez, Francisco"]
[Result "1-0"]
[ECO "A43"]
[BlackElo "2125"]
[PlyCount "69"]
[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. d4 c5 2. d5 f5 3. c4 d6 4. Nc3 Nf6 5. Qc2 g6 6. f3 Bg7 7. e4 Na6 8. Bg5 0-0 9. 0-0-0 fxe4 10. fxe4 Ng4 11. Nf3 h6 12. h3 Nf6 13. Be3 Nh5 14. Qd2 Ng3 15. Rg1 Kh7 16. Bd3 Nb4 17. Bb1 Qa5 18. Rge1 Bd7 19. Z0 Rac8 20. Bf2 Nh5 21. e5 Nf4 22. Bg3 Nh5 23. Bh2 Qa6 24. Nh4 Bf5 25. Nxf5 gxf5 26. g4 dxe5 27. gxh5 e4 28. Rg1 Rg8 29. Rg6 Qxc4 30. Be5 Nd3+ 31. Bxd3 Qxd3 32. Qxd3 exd3 33. Rxg7+ Rxg7 34. Bxg7 Kxg7 35. Rxd3 1-0

[Event "Pan American-ch U16"]
[Site "Bogota"]
[Date "2004.07.26"]
[Round "6"]
[White "Perez, Francisco"]
[Black "Alvarez Garcia, Javier"]
[Result "1-0"]
[ECO "B21"]
[WhiteElo "2125"]
[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 c5 2. d3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Be2 d6 6. 0-0 e6 7. c3 Nge7 8. Be3 0-0 9. Nbd2 Rb8 10. g3 Qc7 11. d4 cxd4 12. cxd4 f5 13. e5 dxe5 14. dxe5 b6 15. Rc1 Rd8 16. Qb3 Qd7 17. Bb5 h6 18. Rfd1 Qb7 19. Qa4 Bd7 20. Nc4 Na5 21. Bxd7 Qxf3 22. Bxe6+ Kh7 23. Rxd8 Rxd8 24. Bf2 Nxc4 25. Bxc4 Rd2 26. Rf1 Rxb2 27. Qxa7 b5 28. Be6 Nc6 29. Qd7 Qc3 30. Qe8 h5 31. Bf7 Nd4 32. Bxg6+ Kh6 33. Bxh5 Kh7 34. Qg6+ Kg8 35. Qg5 b4 36. Qd8+ Kh7 37. Bxd4 Qd2 38. Bg6+ Kxg6 39. Qg5+ Kh7 40. Qxf5+ 1-0

[Event "Pan American-ch U16"]
[Site "Bogota"]
[Date "2004.07.26"]
[Round "5"]
[White "Perez, Francisco"]
[Black "Guerra Tulcan, Lenin"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "2125"]
[BlackElo "2088"]
[PlyCount "35"]
[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 Nf6 3. Nxe5 Nxe4 4. Qe2 Qe7 5. Qxe4 d6 6. d4 dxe5 7. dxe5 Nc6 8. Bf4 g5 9. Bg3 f5 10. Qe2 f4 11. Qh5+ Kd8 12. Nc3 fxg3 13. 0-0-0+ Bd7 14. hxg3 Kc8 15. f4 Bg7 16. Bc4 Qxe5 17. Qxg5 Re8 18. Be6 0-1

[Event "Pan American-ch U16"]
[Site "Bogota"]
[Date "2004.07.25"]
[Round "2"]
[White "Pacheco, Garri"]
[Black "Perez, Francisco"]
[Result "1-0"]
[ECO "A43"]
[WhiteElo "2182"]
[BlackElo "2125"]
[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. d4 c5 2. d5 f5 3. Nf3 d6 4. Nc3 Nf6 5. g3 g6 6. Bg2 Bg7 7. 0-0 0-0 8. Nd2 Na6 9. e4 Nc7 10. a4 b6 11. exf5 Bxf5 12. Nc4 Rb8 13. Rb1 b5 14. axb5 Nxb5 15. Nxb5 Rxb5 16. Ra1 Qd7 17. c3 Qc7 18. Qe2 Rbb8 19. h3 Rfe8 20. Rd1 e5 21. Ra6 Bf8 22. Bg5 Bc8 23. Rc6 Qd7 24. Bxf6 Bb7 25. Na5 Bxc6 26. dxc6 Qf7 27. Bd5 Re6 28. Qc4 1-0

[Event "Pan American-ch U16"]
[Site "Bogota"]
[Date "2004.07.25"]
[Round "3"]
[White "Perez, Francisco"]
[Black "Naranjo, Sebastian"]
[Result "1/2-1/2"]
[ECO "C06"]
[WhiteElo "2125"]
[BlackElo "1882"]
[PlyCount "54"]
[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. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cxd4 8. cxd4 Qb6 9. Nf3 f6 10. exf6 Nxf6 11. 0-0 Bd6 12. a3 0-0 13. b4 Bd7 14. Bb2 Rae8 15. Rc1 Re7 16. Ng3 Be8 17. Rc2 Bxg3 18. hxg3 Bh5 19. b5 Na5 20. Bc3 Ref7 21. Bb4 Re8 22. Qb1 Bxf3 23. gxf3 Nc4 24. Bc5 Qd8 25. Kg2 g6 26. Re1 Nh5 27. Bxc4 dxc4 1/2-1/2

[Event "Pan American-ch U16"]
[Site "Bogota"]
[Date "2004.07.24"]
[Round "1"]
[White "Perez, Francisco"]
[Black "Jimenez, Alvarado Alonso"]
[Result "1-0"]
[ECO "B21"]
[WhiteElo "2125"]
[BlackElo "1888"]
[PlyCount "85"]
[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. d3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Be2 e6 6. 0-0 Nge7 7. c3 0-0 8. Be3 d6 9. Nbd2 Rb8 10. a4 a6 11. g3 b5 12. e5 dxe5 13. fxe5 Nxe5 14. Nxe5 Bxe5 15. Bxc5 Re8 16. d4 Bg7 17. axb5 axb5 18. Ne4 Nf5 19. Ba7 Ne3 20. Qd3 Nxf1 21. Bxb8 Bb7 22. Nd6 Qxb8 23. Nxe8 Qxe8 24. Rxf1 Bc6 25. Bf3 Bxf3 26. Qxf3 Qd7 27. Ra1 h5 28. Qa8+ Kh7 29. Ra7 Bxd4+ 30. cxd4 Qxd4+ 31. Kg2 Qd2+ 32. Kh3 Qf2 33. Ra1 g5 34. Qe4+ Kg7 35. g4 f5 36. Qe5+ Kf7 37. Qc7+ Kf6 38. Qd8+ Ke5 39. Qb8+ Kf6 40. Qh8+ Ke7 41. Qg7+ Kd6 42. Rd1+ Kc5 43. Qa7+ 1-0

[Event "FRA-chT Poule Haute"]
[Site "Belfort"]
[Date "2004.05.10"]
[Round "11"]
[White "Verat, Laurent"]
[Black "Perez, Francisco"]
[Result "0-1"]
[ECO "E01"]
[WhiteElo "2302"]
[BlackElo "2211"]
[PlyCount "164"]
[EventDate "2004.05.08"]
[EventType "team-tourn"]
[EventRounds "4"]
[EventCountry "FRA"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]
[WhiteTeam "Clichy"]
[BlackTeam "Gonfreville"]
[WhiteTeamCountry "FRA"]
[BlackTeamCountry "FRA"]

1. d4 d5 2. c4 e6 3. Nf3 c6 4. g3 Nf6 5. Bg2 Bd6 6. Qc2 Nbd7 7. 0-0 0-0 8. Nbd2 Re8 9. b3 Bc7 10. Bb2 dxc4 11. Nxc4 Nb6 12. Rad1 a5 13. e4 a4 14. Nce5 axb3 15. axb3 Nfd7 16. Ng4 Qe7 17. Qc3 f6 18. Rfe1 e5 19. Ne3 exd4 20. Nxd4 Qc5 21. Qd2 Qa5 22. Qe2 Qb4 23. f4 Qf8 24. Qc2 Qc5 25. Qd2 Qf8 26. Rc1 Nc5 27. Qc2 Ne6 28. Nf3 Nd7 29. f5 Nd8 30. Nc4 Nf7 31. Ra1 Rxa1 32. Rxa1 b5 33. Na5 Qc5+ 34. Qxc5 Nxc5 35. Nxc6 Nxb3 36. Ra3 Nc5 37. Nfd4 Bb6 38. Kf1 Bb7 39. e5 fxe5 40. Nxb5 e4 41. Ncd4 Ba6 42. Rxa6 Nxa6 43. Ne6 Nc5 44. Nxg7 Rd8 45. Ke2 Ba5 46. Nd4 Rb8 47. Ba3 Kxg7 48. Bxc5 Rb2+ 49. Kf1 Rb1+ 50. Kf2 Rb2+ 51. Ne2 Bb6 52. Bxb6 Rxb6 53. Bxe4 Rb2 54. h4 Kf6 55. g4 Ke5 56. Bd3 Nh6 57. Kf3 Rb3 58. Nf4 Rb4 59. Ng2 Nxg4 60. Ne3 Nxe3 61. Kxe3 Rxh4 62. Kf3 Rh3+ 63. Ke2 h5 64. Bb5 Rg3 65. Kf2 Rg7 66. Be8 h4 67. Bg6 Rc7 68. Kg2 Rc3 69. Kh2 Kf6 70. Kg2 Kg5 71. Kh2 Ra3 72. Kg2 Rb3 73. Bh7 Ra3 74. Bg6 Kg4 75. f6 h3+ 76. Kf2 Ra2+ 77. Ke3 Kg3 78. Be8 Rf2 79. f7 Rf3+ 80. Ke2 h2 81. Bc6 h1Q 82. f8Q Qf1+ 0-1

[Event "IECC O-1785"]
[Site "IECC email"]
[Date "2003.10.15"]
[Round "?"]
[White "Van den Bos, Frans Pieter"]
[Black "Perez, Francisco"]
[Result "1/2-1/2"]
[ECO "B15"]
[WhiteElo "1785"]
[BlackElo "1872"]
[PlyCount "43"]
[EventDate "2003.??.??"]
[EventType "swiss (corr)"]
[EventRounds "2"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Spain"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "ESP"]

1. e4 c6 2. d4 d5 3. f3 g6 4. Be3 Bg7 5. Nc3 dxe4 6. fxe4 Nf6 7. Nf3 Ng4 8. Bf4 e5 9. Nxe5 Nxe5 10. Bxe5 Bxe5 11. dxe5 Qxd1+ 12. Rxd1 Be6 13. Be2 Nd7 14. 0-0 Nxe5 15. a4 Ke7 16. h3 Rhd8 17. Kf2 Rxd1 18. Rxd1 Rd8 19. Rxd8 Kxd8 20. g4 Ke7 21. Kg3 h6 22. Kf4 1/2-1/2

[Event "IECC M email"]
[Site "IECC email"]
[Date "2003.03.29"]
[Round "?"]
[White "Malmstroem, Jan"]
[Black "Perez, Francisco"]
[Result "1-0"]
[ECO "C25"]
[WhiteElo "1939"]
[BlackElo "1885"]
[PlyCount "21"]
[EventDate "2003.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nc3 Nc6 4. Nf3 d6 5. d4 Bg4 6. Bxf4 Nf6 7. Bb5 Nd7 8. 0-0 Be7 9. Nd5 0-0 10. c3 Ncb8 11. Bd3 1-0

[Event "IECC M email"]
[Site "IECC email"]
[Date "2003.03.29"]
[Round "?"]
[White "Perez, Francisco"]
[Black "Malmstroem, Jan"]
[Result "0-1"]
[ECO "A01"]
[WhiteElo "1900"]
[BlackElo "1924"]
[PlyCount "22"]
[EventDate "2003.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. d3 d5 4. g3 Nf6 5. e3 Bb4+ 6. Nd2 0-0 7. Bg2 Bg4 8. Ne2 Qd7 9. f3 Bh3 10. 0-0 Rae8 11. c3 Bc5 0-1

[Event "Pan American-ch U10"]
[Site "Matinhos"]
[Date "1999.??.??"]
[Round "3"]
[White "Catelli, Hernan"]
[Black "Perez, Francisco"]
[Result "0-1"]
[ECO "A45"]
[PlyCount "75"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. e3 g6 3. Bd3 Bg7 4. Nd2 Nc6 5. c3 0-0 6. f4 e6 7. Ngf3 d5 8. 0-0 Ne4 9. Nb3 Ne7 10. h3 Nf6 11. Ne5 Nd7 12. c4 c6 13. Bd2 Nxe5 14. fxe5 dxc4 15. Bxc4 Nd5 16. e4 Qh4 17. exd5 exd5 18. Be2 Bxh3 19. Qe1 Qxe1 20. Raxe1 Be6 21. Nc5 b6 22. Nxe6 fxe6 23. Rxf8+ Rxf8 24. Rf1 Rc8 25. Ba6 Rc7 26. Rc1 c5 27. b4 c4 28. Bb5 a5 29. bxa5 bxa5 30. a4 Ra7 31. Rb1 Bf8 32. Bc6 h6 33. Rb7 Rxb7 34. Bxb7 Bb4 35. Bxh6 c3 36. Bc1 g5 37. Kf2 g4 38. Ba6 0-1

[Event "Pan American-ch U10"]
[Site "Matinhos"]
[Date "1999.??.??"]
[Round "5"]
[White "Guerra Tulcan, Lenin"]
[Black "Perez, Francisco"]
[Result "0-1"]
[ECO "C42"]
[PlyCount "108"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Be2 Be7 6. 0-0 0-0 7. d4 Nc6 8. Bd3 Ng5 9. Nxg5 Bxg5 10. Qh5 h6 11. Bxg5 Qxg5 12. Qxg5 hxg5 13. c3 d5 14. Nd2 g4 15. Rfe1 Bd7 16. Nf1 Rfe8 17. Ne3 Be6 18. Re2 g6 19. Rae1 Kf8 20. Bb5 a6 21. Ba4 b5 22. Bb3 Rad8 23. Nxd5 Bxd5 24. Rxe8+ Rxe8 25. Rxe8+ Kxe8 26. Bxd5 Nd8 27. Kf1 c6 28. Bb3 Ke7 29. Bd1 f5 30. f3 gxf3 31. Bxf3 Kd6 32. Ke2 g5 33. Ke3 a5 34. h3 Ne6 35. g3 c5 36. dxc5+ Nxc5 37. Kd4 Ne6+ 38. Ke3 Ke5 39. Bc6 b4 40. cxb4 axb4 41. Bd7 Nd4 42. h4 gxh4 43. gxh4 f4+ 44. Kf2 Kf6 45. h5 Kg5 46. Be8 Ne6 47. Bg6 Nc5 48. Kf3 Na4 49. Bc2 Nxb2 50. h6 Kxh6 51. Kxf4 Nc4 52. Ke4 Nd2+ 53. Kd3 b3 54. Kxd2 bxa2 0-1

[Event "Pan American-ch U10"]
[Site "Matinhos"]
[Date "1999.??.??"]
[Round "2"]
[White "Hayashi, Francisco"]
[Black "Perez, Francisco"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "70"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bc4 Bc5 5. d3 d6 6. Bg5 h6 7. Bxf6 Qxf6 8. Nb5 Bb6 9. 0-0 Bg4 10. Bd5 Nd4 11. Nbxd4 Bxd4 12. Qe1 Bxf3 13. gxf3 c6 14. Bb3 Qxf3 15. c3 Bb6 16. Bd1 Qxd3 17. Be2 Qxe4 18. Rd1 d5 19. Rd2 h5 20. h3 Rh6 21. Kh2 Rg6 22. f3 Qf4+ 23. Kh1 Be3 24. Rc2 Qf5 25. Qh4 Qxc2 26. Re1 Qxb2 27. a4 Rg1+ 28. Rxg1 Bxg1 29. Qe1 Be3 30. f4 Bxf4 31. Qf2 Qxc3 32. Bf1 d4 33. Qh4 Qd2 34. Bg2 Qd1+ 35. Bf1 Qxf1# 0-1

[Event "Pan American-ch U10"]
[Site "Matinhos"]
[Date "1999.??.??"]
[Round "7"]
[White "Perez, Francisco"]
[Black "Ascoy Contreras, Martin"]
[Result "0-1"]
[ECO "B70"]
[PlyCount "102"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Bb5+ Bd7 7. Bxd7+ Nbxd7 8. 0-0 Bg7 9. Be3 0-0 10. f4 Qb6 11. Nf5 Qd8 12. Ng3 Nb6 13. f5 Qc7 14. Qc1 Ng4 15. Bd2 Qc5+ 16. Kh1 Nc4 17. h3 Nxd2 18. Qxd2 Ne5 19. Nd5 Rae8 20. f6 exf6 21. Rxf6 Bxf6 22. Nxf6+ Kg7 23. Nxe8+ Rxe8 24. Qg5 Nd7 25. Qd2 Nf6 26. Re1 Qe5 27. Qc3 Qxc3 28. bxc3 d5 29. Rb1 b6 30. Rb3 Nxe4 31. Nxe4 dxe4 32. Kg1 f5 33. Ra3 Re7 34. c4 Kf6 35. Kf2 Rc7 36. Ra4 Ke5 37. Ke3 f4+ 38. Ke2 Kd4 39. c5+ Ke5 40. cxb6 axb6 41. Kd2 Rd7+ 42. Ke2 Rd4 43. Ra7 h5 44. Ra6 Rd6 45. Ra4 b5 46. Ra5 Rd5 47. h4 Rc5 48. Kd2 e3+ 49. Kd3 Rd5+ 50. Ke2 Rd2+ 51. Kf3 Rf2# 0-1

[Event "Pan American-ch U10"]
[Site "Matinhos"]
[Date "1999.??.??"]
[Round "4"]
[White "Perez, Francisco"]
[Black "Bazan, Francisco"]
[Result "1/2-1/2"]
[ECO "C10"]
[PlyCount "60"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Bb5 a6 7. Ba4 Bb4 8. a3 Bxc3+ 9. bxc3 0-0 10. Bxc6 bxc6 11. 0-0 Ne4 12. Qd3 f6 13. c4 a5 14. cxd5 cxd5 15. Qe3 Ba6 16. Re1 Re8 17. a4 Qd7 18. Bd2 Bc4 19. Qa3 Nxd2 20. Nxd2 Rxe1+ 21. Rxe1 Re8 22. Rxe8+ Qxe8 23. Qa1 Ba6 24. h3 Qc6 25. Qa2 Qc3 26. Qxd5+ Kf8 27. Qa8+ Ke7 28. Qxa6 Qxd2 29. Qc6 Qc1+ 30. Kh2 Qf4+ 1/2-1/2

[Event "Pan American-ch U10"]
[Site "Matinhos"]
[Date "1999.??.??"]
[Round "1"]
[White "Perez, Francisco"]
[Black "Caro, John"]
[Result "0-1"]
[ECO "C11"]
[PlyCount "55"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 d5 3. e5 Nfd7 4. d4 e6 5. Nf3 c5 6. Ne2 Nc6 7. c3 Qb6 8. Ng3 Be7 9. b4 cxd4 10. cxd4 Bxb4+ 11. Bd2 Nxd4 12. Nxd4 Qxd4 13. Ne2 Bxd2+ 14. Qxd2 Qxa1+ 15. Nc1 Qxe5+ 16. Be2 0-0 17. 0-0 Nc5 18. Re1 Qf6 19. Qb4 Ne4 20. Nd3 Rd8 21. Rc1 b6 22. Rc7 Ba6 23. f3 Bxd3 24. Bxd3 Qa1+ 25. Bf1 Nc5 26. Qf4 Rd7 27. Rc6 Qc3 28. Rxb6 0-1

[Event "Pan American-ch U10"]
[Site "Matinhos"]
[Date "1999.??.??"]
[Round "6"]
[White "Perez, Francisco"]
[Black "Lopez, Marlon"]
[Result "0-1"]
[ECO "B04"]
[PlyCount "64"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. Nf3 Nc6 6. exd6 cxd6 7. Be2 g6 8. 0-0 Bg7 9. Be3 0-0 10. Nbd2 Bf5 11. a4 a5 12. Qb3 Nb4 13. d5 Bc2 14. Bxb6 Qxb6 15. Qe3 Qxe3 16. fxe3 Bxb2 17. Rae1 Bxa4 18. Rb1 Bg7 19. Nb3 b6 20. Bd1 Bd7 21. Re1 Bf5 22. e4 Bd7 23. Nbd4 Rab8 24. e5 Nd3 25. Re3 Nxe5 26. Nxe5 Bxe5 27. Nf3 Bf6 28. Reb3 Bf5 29. Rc1 Rfc8 30. Nd2 Bg5 31. Rb2 b5 32. Bc2 Bxd2 0-1

[Event "Casita de Las Tortas"]
[Site "Valera"]
[Date "1999.??.??"]
[Round "?"]
[White "Perez, Francisco"]
[Black "Massari, Salvador"]
[Result "0-1"]
[ECO "B08"]
[PlyCount "117"]
[EventDate "1999.07.??"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "VEN"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. e5 dxe5 5. dxe5 Qxd1+ 6. Nxd1 Ng4 7. Nf3 Bg7 8. Bf4 Nc6 9. Bb5 Bd7 10. 0-0 Ncxe5 11. Bxd7+ Nxd7 12. Ne3 Nxe3 13. Bxe3 0-0 14. Bd4 e5 15. Bc3 Rfe8 16. Rad1 Rad8 17. Rfe1 f6 18. Re2 e4 19. Rde1 Kf7 20. Rxe4 Rxe4 21. Rxe4 Nb6 22. Kf1 h6 23. Rd4 Re8 24. Ba5 f5 25. Bxb6 axb6 26. Rd7+ Re7 27. Rxe7+ Kxe7 28. b3 Bf6 29. Ke2 Kd6 30. Kd3 Kc5 31. Nd2 b5 32. c3 c6 33. f3 h5 34. g3 h4 35. g4 b4 36. c4 h3 37. gxf5 gxf5 38. f4 Bh4 39. Ke3 b5 40. cxb5 Kxb5 41. Kd4 Bg3 42. Nf3 Bxf4 43. Ng1 Bxh2 44. Nxh3 f4 45. Ke4 Kc5 46. Nf2 Kb5 47. Nd3 c5 48. Nxf4 Bg1 49. Kd5 Be3 50. Ne6 Bg1 51. Nc7+ Kb6 52. Ne6 Bf2 53. Nf4 Kb5 54. Ng2 Bg3 55. Ne3 Bh2 56. Nc4 Bg3 57. a4+ bxa3 58. Nxa3+ Kb4 59. Nc2+ 0-1

[Event "Casita de Las Tortas"]
[Site "Valera"]
[Date "1999.??.??"]
[Round "?"]
[White "Perez, Francisco"]
[Black "Nino Gudino, Elmer"]
[Result "0-1"]
[ECO "B30"]
[PlyCount "78"]
[EventDate "1999.07.??"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "VEN"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. Bc4 Bg7 5. 0-0 d6 6. Ne2 a6 7. c3 Bg4 8. Ng5 Ne5 9. Qb3 Nxc4 10. Qxc4 d5 11. exd5 Bxe2 12. Qxe2 Qxd5 13. Ne4 Nf6 14. d3 Rd8 15. Nxf6+ Bxf6 16. Rd1 0-0 17. Be3 Rd6 18. d4 Rfd8 19. Rd2 Qe6 20. Qd1 Qd7 21. Qc2 cxd4 22. cxd4 Bxd4 23. Rad1 e5 24. Qe4 f5 25. Qh4 Qe6 26. Bg5 R8d7 27. b3 b5 28. Rc1 Rc6 29. Rdc2 Rdc7 30. Bh6 Kf7 31. Qd8 Rc8 32. Qxc8 Rxc8 33. Rxc8 Qd5 34. R1c7+ Ke6 35. Rc6+ Kd7 36. R6c7+ Ke6 37. Rc6+ Kd7 38. Bg5 Qxc6 39. Rxc6 Kxc6 0-1

[Event "Panama Najdorf op"]
[Site "Panama"]
[Date "1999.??.??"]
[Round "1"]
[White "Perez, Francisco"]
[Black "Sanchez, Enrique"]
[Result "0-1"]
[ECO "A23"]
[WhiteElo "2100"]
[BlackElo "1540"]
[PlyCount "84"]
[EventDate "1999.11.02"]
[EventType "swiss"]
[EventRounds "4"]
[EventCountry "PAN"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 c6 5. e3 0-0 6. Nge2 d5 7. d4 exd4 8. exd4 Bb4 9. cxd5 Nxd5 10. 0-0 Be6 11. Qc2 Qd7 12. Re1 Na6 13. Bd2 Nac7 14. Nxd5 Bxd2 15. Nf6+ gxf6 16. Qxd2 Bd5 17. Nf4 Bxg2 18. Kxg2 Nd5 19. a3 Rae8 20. Rad1 Qf5 21. Nd3 b6 22. Nb4 Nxb4 23. Qxb4 Qd5+ 24. f3 Re6 25. Rxe6 fxe6 26. Qe7 Rf7 27. Qe8+ Kg7 28. Re1 Qxd4 29. Qxe6 Qxb2+ 30. Re2 Qxa3 31. Qxc6 Re7 32. Rc2 Qd3 33. Kh3 Qf1+ 34. Kh4 Kg6 35. Rc4 Qg2 36. Rg4+ Kf7 37. Qd5+ Re6 38. Re4 Qxh2+ 39. Kg4 f5+ 40. Qxf5+ Rf6 41. Qd7+ Kg6 42. f4 Qh5# 0-1

[Event "Pan American-ch U10"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "1"]
[White "Chamorro, Erik N"]
[Black "Perez, Francisco"]
[Result "1-0"]
[ECO "C54"]
[PlyCount "57"]
[EventDate "1998.05.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. c3 Nf6 6. e5 d5 7. Bb5 Ne4 8. cxd4 Bb4+ 9. Nbd2 0-0 10. h3 Re8 11. 0-0 Bxd2 12. Bxd2 Re6 13. Rc1 Rg6 14. Kh2 Ne7 15. Nh4 Rb6 16. a4 a6 17. Ba5 Re6 18. Bxc7 Qf8 19. Bd3 f5 20. Bd6 Qe8 21. Bxe7 Rxe7 22. f3 Ng5 23. Nxf5 Bxf5 24. Bxf5 Qf8 25. Qd3 g6 26. Bg4 Rg7 27. f4 Ne4 28. Be6+ Kh8 29. Bxd5 1-0

[Event "Pan American-ch U10"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "5"]
[White "Gonzalez, Roy"]
[Black "Perez, Francisco"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "128"]
[EventDate "1998.05.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 5. d3 d6 6. Be3 Bb6 7. Qd2 Be6 8. 0-0-0 Bxc4 9. dxc4 Qd7 10. Kb1 Bxe3 11. Qxe3 0-0-0 12. Nd5 Ng4 13. Qe2 f5 14. h3 Nf6 15. exf5 Qxf5 16. g4 Qe6 17. Ng5 Qd7 18. c5 Nd4 19. Qc4 Nxd5 20. Qxd5 h6 21. Nf3 c6 22. Qxd6 Qxd6 23. cxd6 Nxf3 24. Rd3 e4 25. Re3 Rxd6 26. Kc1 Re8 27. h4 Rd2 28. Rxf3 exf3 29. Kxd2 Re2+ 30. Kd3 Rxf2 31. Rh3 Rg2 32. Rxf3 Rxg4 33. h5 Rg5 34. Rf7 Rxh5 35. Rxg7 Rh1 36. Rh7 h5 37. b4 h4 38. c4 h3 39. b5 c5 40. Ke2 Rh2+ 41. Kf3 Rxa2 42. Rxh3 Ra3+ 43. Kg4 Rxh3 44. Kxh3 Kc7 45. Kg3 Kb6 46. Kf3 Ka5 47. Ke3 Kb4 48. Kd3 b6 49. Kc2 Kxc4 50. Kb2 Kxb5 51. Kb3 a5 52. Kc3 c4 53. Kb2 Kb4 54. Kc2 b5 55. Kb2 a4 56. Kc2 a3 57. Kb1 c3 58. Ka1 c2 59. Ka2 Kc3 60. Kxa3 b4+ 61. Ka2 b3+ 62. Ka3 c1Q+ 63. Ka4 Qg5 64. Ka3 Qa5# 0-1

[Event "Pan American-ch U10"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "2"]
[White "Ibarra Chami, Luis Fernando"]
[Black "Perez, Francisco"]
[Result "1/2-1/2"]
[ECO "C54"]
[PlyCount "120"]
[EventDate "1998.05.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. 0-0 Bxc3 9. d5 Bf6 10. Re1 Ne7 11. Rxe4 d6 12. Bb5+ Bd7 13. Bxd7+ Qxd7 14. Bg5 Bxg5 15. Nxg5 Qf5 16. Qe2 Qxg5 17. Re1 0-0 18. Rxe7 Qxd5 19. Rxc7 h6 20. Qc2 Qa5 21. Rc1 Rfe8 22. h3 Qxa2 23. Rxb7 Rab8 24. Rxb8 Rxb8 25. Rb1 a5 26. Qc1 a4 27. g3 a3 28. b4 Ra8 29. b5 Qd5 30. b6 a2 31. b7 Rb8 32. Qc8+ Kh7 33. Ra1 Qxb7 34. Qc2+ g6 35. Qxa2 Kg7 36. Rd1 Qd7 37. Qa1+ f6 38. Re1 Rf8 39. Qb1 d5 40. Kg2 d4 41. Qb4 Qd5+ 42. Kg1 d3 43. Rd1 Rd8 44. Qe7+ Kg8 45. Qxf6 Rd6 46. Qe7 Re6 47. Rxd3 Rxe7 48. Rxd5 Kf7 49. Rd3 Kf6 50. Rf3+ Kg5 51. Rf8 Kh5 52. h4 Kg4 53. Kg2 g5 54. Rf6 gxh4 55. gxh4 h5 56. f4 Kxh4 57. Rg6 Rf7 58. Kf3 Kh3 59. Ke4 h4 60. f5 Kh2 1/2-1/2

[Event "Pan American-ch U10"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "4"]
[White "Perez, Francisco"]
[Black "Bachmann, Axel"]
[Result "1-0"]
[ECO "C41"]
[PlyCount "101"]
[EventDate "1998.05.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Be6 6. Bd3 Nc6 7. Nce2 Be7 8. 0-0 Bg4 9. f3 Bh5 10. Nxc6 bxc6 11. Nf4 Bg6 12. Be3 Nh5 13. Nxg6 hxg6 14. Ba6 Qd7 15. Be2 c5 16. c4 Rb8 17. b3 Nf6 18. f4 Nxe4 19. Bf3 Nf6 20. Qd2 Ng4 21. h3 Nxe3 22. Qxe3 0-0 23. g4 Bf6 24. Rad1 Bd4 25. Rxd4 cxd4 26. Qxd4 a5 27. c5 Rb4 28. Qd5 Rxf4 29. c6 Qe6 30. Qxa5 Qe3+ 31. Kg2 Rd4 32. Rf2 Qe7 33. Re2 Qd8 34. Qc3 Qf6 35. Qa5 Rf4 36. Rf2 Re8 37. Qxc7 Rxf3 38. Rxf3 Re2+ 39. Kg3 Qe5+ 40. Kh4 g5+ 41. Kh5 Qe6 42. Qd8+ Kh7 43. Qxg5 g6+ 44. Kh4 Rg2 45. Qf4 g5+ 46. Qxg5 Rc2 47. Qf5+ Qxf5 48. Rxf5 Rxc6 49. Rxf7+ Kg6 50. Rd7 Ra6 51. a4 1-0

[Event "Pan American-ch U10"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "3"]
[White "Perez, Francisco"]
[Black "Bazan, Francisco"]
[Result "1/2-1/2"]
[ECO "C02"]
[PlyCount "36"]
[EventDate "1998.05.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be2 Bd7 7. 0-0 Be7 8. b3 f6 9. Be3 f5 10. c4 Nh6 11. a3 0-0-0 12. dxc5 Bxc5 13. Bxc5 Qxc5 14. b4 Qe7 15. b5 Na5 16. Qa4 b6 17. Nbd2 Kb8 18. Rfc1 Rc8 1/2-1/2

[Event "Santiago ARAIS tt-B"]
[Site "Santiago de Chile"]
[Date "1993.??.??"]
[Round "?"]
[White "Perez, Francisco"]
[Black "Labarca, Alexis"]
[Result "0-1"]
[ECO "B33"]
[BlackElo "2125"]
[PlyCount "60"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHI"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Bb4 7. Bd3 d5 8. exd5 Nxd5 9. Bd2 Nxc3 10. bxc3 Bd6 11. Qf3 0-0 12. 0-0 Be6 13. Qh5 f5 14. Bg5 Qc7 15. Rae1 Rae8 16. c4 e4 17. Be2 Ne5 18. c5 Bxc5 19. Nxc5 Qxc5 20. Be3 Qa5 21. Bd4 Ng6 22. Qg5 Rd8 23. c3 Qc7 24. f3 Nf4 25. fxe4 Nxe2+ 26. Rxe2 Bc4 27. Ref2 Bxf1 28. Rxf1 fxe4 29. Rxf8+ Rxf8 30. Qd5+ Qf7 0-1

