[Event "Central America-ch U20"]
[Site "Villahermosa"]
[Date "2001.??.??"]
[Round "6"]
[White "De las Heras Saldana, David"]
[Black "Alfaro Caracas, William"]
[Result "0-1"]
[ECO "B08"]
[PlyCount "82"]
[EventDate "2001.11.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 085 Extra"]
[Source "ChessBase"]
[SourceDate "2002.01.21"]
[SourceVersion "1"]
[SourceVersionDate "2002.01.21"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Bc4 c6 6. Bg5 0-0 7. h3 b5 8. Bd3 Nbd7 9. Qd2 e5 10. Bh6 Re8 11. 0-0 exd4 12. Nxd4 b4 13. Bxg7 Kxg7 14. Nce2 c5 15. Nf3 Nxe4 16. Bxe4 Rxe4 17. Qd5 Rxe2 18. Qxa8 Rxc2 19. Qxa7 Rxb2 20. Rad1 Nb6 21. Rfe1 Kf8 22. Re3 Be6 23. Qa5 Rxa2 24. Qxc5 dxc5 25. Rxd8+ Ke7 26. Rd1 h6 27. Rc1 Nd5 28. Ree1 Nc3 29. Kf1 Kd6 30. Ra1 b3 31. Rxa2 Nxa2 32. Rb1 c4 33. Nd2 c3 34. Ne4+ Ke7 35. Nxc3 Nxc3 36. Rb2 Na4 37. Rb1 b2 38. Ke1 Ba2 39. Rxb2 Nxb2 40. Kd2 Bd5 41. g3 f5 0-1

[Event "Central America-ch U20"]
[Site "Villahermosa"]
[Date "2001.??.??"]
[Round "3"]
[White "De las Heras Saldana, David"]
[Black "Jason, Alford"]
[Result "0-1"]
[ECO "C45"]
[BlackElo "2121"]
[PlyCount "92"]
[EventDate "2001.11.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 085 Extra"]
[Source "ChessBase"]
[SourceDate "2002.01.21"]
[SourceVersion "1"]
[SourceVersionDate "2002.01.21"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Be2 0-0 8. 0-0 d5 9. Nxc6 Qxc6 10. Bxc5 Qxc5 11. Nd2 Be6 12. Bf3 Rad8 13. Nb3 Qb6 14. Qc2 Ng6 15. exd5 Bxd5 16. Bxd5 Rxd5 17. Rad1 Rg5 18. Rd3 Nf4 19. Rg3 Qg6 20. Qxg6 Ne2+ 21. Kh1 Nxg3+ 22. fxg3 fxg6 23. Rxf8+ Kxf8 24. Nd4 Ke7 25. Kg1 Ra5 26. a3 c5 27. Nc2 Ke6 28. Kf2 Ke5 29. Kf3 Rb5 30. Ne3 Rb3 31. h3 b5 32. Nd1 b4 33. axb4 cxb4 34. Ke2 a5 35. Kd2 bxc3+ 36. bxc3 a4 37. Kc2 Rb8 38. Nb2 Ra8 39. Nc4+ Ke4 40. Kb2 Kd3 41. Na3 Rb8+ 42. Kc1 Kxc3 43. Nb1+ Rxb1+ 44. Kxb1 Kd2 45. h4 Ke3 46. g4 Kf2 0-1

[Event "Central America-ch U20"]
[Site "Villahermosa"]
[Date "2001.??.??"]
[Round "1"]
[White "De las Heras Saldana, David"]
[Black "Velazquez Parra, Jordan"]
[Result "1/2-1/2"]
[ECO "C45"]
[PlyCount "112"]
[EventDate "2001.11.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 085 Extra"]
[Source "ChessBase"]
[SourceDate "2002.01.21"]
[SourceVersion "1"]
[SourceVersionDate "2002.01.21"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nxd4 5. Qxd4 Ne7 6. Nc3 Nc6 7. Qd1 Bb4 8. Bd2 0-0 9. Bd3 b6 10. 0-0 Bb7 11. Ne2 Bxd2 12. Qxd2 Re8 13. Rad1 Qf6 14. c3 Ne5 15. Ng3 Nxd3 16. Qxd3 Bc6 17. Rfe1 h6 18. f3 Qe6 19. b3 g6 20. Ne2 a6 21. Nd4 Qe5 22. Nxc6 dxc6 23. Qe3 h5 24. Rd7 Re7 25. Red1 Rae8 26. Rxe7 Rxe7 27. Rd8+ Kg7 28. Qd4 Qxd4+ 29. cxd4 g5 30. d5 cxd5 31. Rxd5 f6 32. Kf2 Kg6 33. b4 Re5 34. Ke3 c6 35. Rd6 Rb5 36. Rxc6 Rxb4 37. e5 Kf5 38. e6 Rb5 39. e7 Re5+ 40. Kf2 Rxe7 41. Rxb6 Re6 42. g4+ hxg4 43. fxg4+ Ke5 44. Rxe6+ Kxe6 45. Ke2 Ke5 46. Ke3 f5 47. gxf5 Kxf5 48. Kf3 g4+ 49. Kg3 a5 50. a4 Kg5 51. Kf2 Kf4 52. Kg2 Kf5 53. Kg3 Kg5 54. Kf2 Kf4 55. Kg2 Kf5 56. Kg3 Kg5 1/2-1/2

[Event "Central America-ch U20"]
[Site "Villahermosa"]
[Date "2001.??.??"]
[Round "9"]
[White "Gonzalez Chavez, Emmanuel"]
[Black "De las Heras Saldana, David"]
[Result "0-1"]
[ECO "C02"]
[PlyCount "60"]
[EventDate "2001.11.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 085 Extra"]
[Source "ChessBase"]
[SourceDate "2002.01.21"]
[SourceVersion "1"]
[SourceVersionDate "2002.01.21"]
[SourceQuality "1"]

1. e4 e6 2. Nc3 d5 3. e5 c5 4. Nf3 Nc6 5. Bb5 Qb6 6. d4 Bd7 7. Be3 a6 8. dxc5 Bxc5 9. Bxc5 Qxc5 10. Ba4 Nge7 11. 0-0 0-0 12. a3 Ng6 13. Re1 Rfd8 14. b3 Qxc3 15. Re3 Qa5 16. Rd3 b5 17. Ng5 Ncxe5 18. Rh3 h6 19. f4 Nxf4 20. Rg3 hxg5 21. Rxg5 Nfg6 22. Rg3 bxa4 23. Qh5 axb3 24. cxb3 Rac8 25. Rh3 Rc3 26. Qh7+ Kf8 27. Rh5 Qc5+ 28. Kf1 Bb5+ 29. Ke1 Qe3+ 30. Kd1 Qe2# 0-1

[Event "Central America-ch U20"]
[Site "Villahermosa"]
[Date "2001.??.??"]
[Round "5"]
[White "Mata Gonzalez, Fernando"]
[Black "De las Heras Saldana, David"]
[Result "0-1"]
[ECO "D58"]
[PlyCount "76"]
[EventDate "2001.11.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 085 Extra"]
[Source "ChessBase"]
[SourceDate "2002.01.21"]
[SourceVersion "1"]
[SourceVersionDate "2002.01.21"]
[SourceQuality "1"]

1. d4 e6 2. c4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. Nf3 h6 6. Bh4 b6 7. e3 0-0 8. Bd3 dxc4 9. Bxc4 Bb7 10. 0-0 Nbd7 11. Rc1 c5 12. Qe2 Ne4 13. Nxe4 Bxe4 14. Bxe7 Qxe7 15. Rfd1 Rac8 16. dxc5 Rxc5 17. Ba6 Rd8 18. Nd2 Ba8 19. Nb3 Rg5 20. g3 Rf5 21. Nd4 Rd5 22. Rc7 Qd6 23. Rdc1 Rc5 24. R7xc5 Nxc5 25. Bc4 Qd7 26. Qg4 Qb7 27. f3 Nd7 28. Bxe6 Ne5 29. Qf4 Nxf3+ 30. Nxf3 fxe6 31. Kf2 Rf8 32. Qg4 Qxf3+ 33. Qxf3 Rxf3+ 34. Ke2 Rf8 35. Rc7 a5 36. a3 Bd5 37. b4 axb4 38. axb4 b5 0-1

[Event "Central America-ch U20"]
[Site "Villahermosa"]
[Date "2001.??.??"]
[Round "2"]
[White "Mora Fonz, David"]
[Black "De las Heras Saldana, David"]
[Result "1-0"]
[ECO "C06"]
[PlyCount "83"]
[EventDate "2001.11.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 085 Extra"]
[Source "ChessBase"]
[SourceDate "2002.01.21"]
[SourceVersion "1"]
[SourceVersionDate "2002.01.21"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 Nc6 5. c3 Nf6 6. e5 Nd7 7. Bd3 Qb6 8. dxc5 Bxc5 9. Qe2 Qc7 10. Nb3 Be7 11. Bf4 b6 12. 0-0 a5 13. a4 Qa7 14. Bb5 Ba6 15. Nfd4 Bxb5 16. Nxb5 Qb7 17. Qg4 Bf8 18. Rfe1 Qb8 19. Nd6+ Ke7 20. Bg5+ f6 21. exf6+ Kxd6 22. Qxe6+ Kc7 23. Bf4+ Nce5 24. Bxe5+ Nxe5 25. Rxe5 Qd8 26. fxg7 Bxg7 27. Qf7+ Kb8 28. Qxg7 Ra7 29. Qg3 Kc8 30. Nd4 Rc7 31. Ne6 Qd7 32. Nxc7 Qxc7 33. Rae1 Qd8 34. Qg4+ Kb8 35. Qg7 h5 36. Qxh8 Qxh8 37. Re8+ Qxe8 38. Rxe8+ Kc7 39. Rh8 Kc6 40. Rxh5 Kc5 41. g4 Kc4 42. g5 1-0

[Event "Central America-ch U20"]
[Site "Villahermosa"]
[Date "2001.??.??"]
[Round "7"]
[White "Trujillo Villega, Pablo Adrian"]
[Black "De las Heras Saldana, David"]
[Result "1-0"]
[ECO "C02"]
[PlyCount "81"]
[EventDate "2001.11.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 085 Extra"]
[Source "ChessBase"]
[SourceDate "2002.01.21"]
[SourceVersion "1"]
[SourceVersionDate "2002.01.21"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Nc6 6. Bd3 Bd7 7. 0-0 cxd4 8. cxd4 Nb4 9. Be2 Nh6 10. Nc3 0-0-0 11. Be3 Kb8 12. a3 Na6 13. b4 Rc8 14. Qb3 Ka8 15. b5 Nb8 16. a4 Qa5 17. Na2 Be7 18. Bd2 Qd8 19. a5 Nf5 20. Bb4 g5 21. Bxe7 Qxe7 22. g4 Ng7 23. b6 a6 24. Nb4 Bc6 25. Rab1 h6 26. Rfc1 Qd7 27. Ne1 Bb5 28. Bd3 Rhe8 29. Rc5 Bxd3 30. Nexd3 Re7 31. Rbc1 Rxc5 32. Rxc5 h5 33. h3 hxg4 34. hxg4 Ne8 35. Qc2 f6 36. exf6 Nxf6 37. Rc7 Qd6 38. Rxe7 Qxe7 39. Qc7 Qh7 40. Nc5 Qb1+ 41. Kg2 1-0

