[Event "Santiago CALF op"]
[Site "Santiago de Chile"]
[Date "2003.??.??"]
[Round "2.8"]
[White "Cerna, Jose Miguel"]
[Black "Sanhueza, Marcelo"]
[Result "1-0"]
[ECO "C10"]
[BlackElo "2179"]
[PlyCount "39"]
[EventDate "2003.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHI"]
[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 dxe4 4. Nxe4 Bd7 5. Bd3 Bc6 6. Nf3 Nd7 7. 0-0 Ngf6 8. Re1 Nxe4 9. Bxe4 Bxe4 10. Rxe4 Nf6 11. Bg5 Be7 12. Bxf6 Bxf6 13. d5 0-0 14. dxe6 fxe6 15. c3 Qxd1+ 16. Rxd1 Rae8 17. Kf1 Re7 18. Ke2 Kf7 19. g4 g5 20. h4 1-0

[Event "Santiago CALF op"]
[Site "Santiago de Chile"]
[Date "2003.??.??"]
[Round "4.20"]
[White "Sanhueza, Marcelo"]
[Black "Matamala, Emiliano"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2179"]
[BlackElo "1881"]
[PlyCount "120"]
[EventDate "2003.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHI"]
[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. Be3 e5 7. Nb3 Be6 8. Be2 Be7 9. Qd2 0-0 10. 0-0-0 Qc7 11. f3 b5 12. g4 Rc8 13. Kb1 Nbd7 14. h4 Nb6 15. h5 Nc4 16. Bxc4 Bxc4 17. g5 Nd7 18. g6 Nb6 19. Rdg1 Be6 20. Qg2 Bf6 21. gxf7+ Bxf7 22. Bh6 g6 23. Be3 Nc4 24. Bc1 Na3+ 25. Ka1 Nxc2+ 26. Qxc2 b4 27. hxg6 Bxg6 28. Rh6 bxc3 29. Qd3 cxb2+ 30. Bxb2 Kg7 31. Qe3 Qa7 32. Qxa7+ Rxa7 33. Rh2 a5 34. Rc1 Rxc1+ 35. Bxc1 a4 36. Bh6+ Kf7 37. Be3 Rb7 38. Nd2 Rc7 39. Kb2 Be7 40. Rh1 h5 41. Rh2 Ke6 42. Rg2 Kf7 43. Nb1 Rc8 44. Nc3 Ra8 45. Nd5 a3+ 46. Kb3 Bd8 47. Rc2 Kg7 48. Rc6 h4 49. Rxd6 h3 50. Bg1 Bf7 51. Bh2 Bxd5+ 52. Rxd5 Bf6 53. Rd1 Kh6 54. Rg1 Rd8 55. Kc3 Rc8+ 56. Kd3 Rd8+ 57. Ke2 Rb8 58. Rd1 Rb2+ 59. Rd2 Bg5 60. f4 Bxf4 0-1

[Event "Pan American-ch U18"]
[Site "Guaymallen"]
[Date "2001.06.05"]
[Round "8"]
[White "Navarro, Gustavo"]
[Black "Sanhueza, Marcelo"]
[Result "0-1"]
[ECO "C15"]
[BlackElo "2025"]
[PlyCount "99"]
[EventDate "2001.05.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 dxe4 6. Qg4 Nf6 7. Qxg7 Rg8 8. Qh6 Rg6 9. Qe3 Nc6 10. Ne2 Ne7 11. Ng3 Ned5 12. Qd2 Bd7 13. Be2 Qe7 14. a4 e5 15. 0-0 0-0-0 16. Ba3 Qe6 17. c4 Nf4 18. d5 Nxe2+ 19. Qxe2 Qe8 20. Kh1 Qg8 21. Rg1 Rg4 22. Be7 Qg6 23. Bxf6 Qxf6 24. Nxe4 Qh6 25. g3 Re8 26. Rab1 Bf5 27. f3 Bxe4 28. fxe4 Reg8 29. Qf2 Qg6 30. Rge1 b6 31. Qf3 h5 32. Re3 h4 33. Rg1 Rf4 34. Qg2 hxg3 35. Qh3+ Kb7 36. Rgxg3 Rg4 37. Qg2 Qh6 38. Qg1 Rxg3 39. Rxg3 Rxg3 40. Qxg3 Qc1+ 41. Qg1 Qxc2 42. Qe1 Qxc4 43. a5 Qd3 44. axb6 axb6 45. Kg1 Qd4+ 46. Kf1 Qc4+ 47. Qe2 Qc1+ 48. Kg2 Qg5+ 49. Kh1 Qf4 50. Qc2 0-1

[Event "Pan American-ch U18"]
[Site "Guaymallen"]
[Date "2001.06.04"]
[Round "7"]
[White "Sanhueza, Marcelo"]
[Black "Cereijo, Nicolas"]
[Result "1/2-1/2"]
[ECO "C00"]
[WhiteElo "2025"]
[BlackElo "2149"]
[PlyCount "53"]
[EventDate "2001.05.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nf3 dxe4 4. dxe4 Qxd1+ 5. Kxd1 Nf6 6. Bd3 Bc5 7. Ke2 Nc6 8. c3 a5 9. h3 b6 10. Bf4 Ba6 11. Bxa6 Rxa6 12. Nbd2 Kd7 13. Ne5+ Nxe5 14. Bxe5 Rd8 15. Rad1 Kc8 16. Bxf6 gxf6 17. Nb3 Bd6 18. Nd4 Rg8 19. Kf3 Ra8 20. Rd2 Kb7 21. Nb5 Be5 22. Na3 Rgd8 23. Rhd1 Rxd2 24. Rxd2 Kc6 25. Nc4 b5 26. Nxe5+ fxe5 27. Ke3 1/2-1/2

[Event "Pan American-ch U18"]
[Site "Guaymallen"]
[Date "2001.06.03"]
[Round "6"]
[White "Briones, Enrique"]
[Black "Sanhueza, Marcelo"]
[Result "1/2-1/2"]
[ECO "C10"]
[WhiteElo "2082"]
[BlackElo "2025"]
[PlyCount "41"]
[EventDate "2001.05.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bd7 5. Nf3 Bc6 6. Bd3 Nd7 7. 0-0 Ngf6 8. Ng3 Be7 9. c4 Bxf3 10. Qxf3 c6 11. Re1 0-0 12. b3 Qa5 13. Bb2 Ba3 14. Bc3 Bb4 15. Bxb4 Qxb4 16. a3 Qb6 17. Rad1 Rad8 18. b4 Rfe8 19. Qf4 a6 20. Ne4 Nxe4 21. Qxe4 1/2-1/2

[Event "Pan American-ch U18"]
[Site "Guaymallen"]
[Date "2001.06.01"]
[Round "4"]
[White "Cabrejos Tovar, Jose"]
[Black "Sanhueza, Marcelo"]
[Result "1/2-1/2"]
[ECO "A08"]
[BlackElo "2025"]
[PlyCount "60"]
[EventDate "2001.05.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d3 c5 3. Nf3 Nc6 4. g3 d5 5. Nbd2 g6 6. Bg2 Bg7 7. 0-0 Nge7 8. Re1 0-0 9. e5 Qc7 10. Qe2 Nb4 11. Nf1 b6 12. c3 Nbc6 13. Bf4 b5 14. h4 b4 15. N1h2 Qa5 16. Qd2 bxc3 17. bxc3 d4 18. cxd4 Qxd2 19. Nxd2 cxd4 20. Rec1 Bb7 21. Bg5 Rab8 22. Ng4 Kh8 23. Ne4 h5 24. Nd6 hxg4 25. Nxb7 Rxb7 26. Bxe7 Rxe7 27. Rxc6 Bxe5 28. Rc5 Bf6 29. Re1 Rb8 30. Rc2 Bg7 1/2-1/2

[Event "Pan American-ch U18"]
[Site "Guaymallen"]
[Date "2001.05.31"]
[Round "3"]
[White "Sanhueza, Marcelo"]
[Black "Zuriel, Alejandro"]
[Result "1/2-1/2"]
[ECO "C09"]
[WhiteElo "2025"]
[BlackElo "2203"]
[PlyCount "86"]
[EventDate "2001.05.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. c3 e6 3. d4 d5 4. exd5 exd5 5. Nf3 Nc6 6. Bb5 Bd6 7. 0-0 Nge7 8. Nbd2 0-0 9. dxc5 Bxc5 10. Nb3 Bb6 11. Bg5 Bg4 12. Re1 f6 13. Bf4 Bh5 14. Qd3 a6 15. Ba4 Bg6 16. Qe2 Be4 17. Rad1 Ng6 18. Bg3 f5 19. h3 Qf6 20. c4 Bxf3 21. Qxf3 dxc4 22. Qd5+ Kh8 23. Qxc4 f4 24. Bh2 Nce5 25. Qe4 Bxf2+ 26. Kxf2 b5 27. Kg1 Rae8 28. Bxb5 axb5 29. Nd4 Re7 30. Qd5 Rd7 31. Qe4 Rfd8 32. Kh1 h6 33. Bxf4 Qxf4 34. Qxf4 Nxf4 35. Rxe5 Rxd4 36. Rxd4 Rxd4 37. Rxb5 Kg8 38. b4 Rd7 39. a4 Ra7 40. a5 Ne6 41. Rb6 Nc7 42. Kg1 Nd5 43. Rb5 Nxb4 1/2-1/2

[Event "Pan American-ch U18"]
[Site "Guaymallen"]
[Date "2001.05.30"]
[Round "2"]
[White "Naselli, Alejandro"]
[Black "Sanhueza, Marcelo"]
[Result "1-0"]
[ECO "A08"]
[BlackElo "2025"]
[PlyCount "61"]
[EventDate "2001.05.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d3 c5 3. Nf3 Nc6 4. g3 Nge7 5. Bg2 g6 6. 0-0 Bg7 7. Nbd2 0-0 8. Re1 d5 9. e5 b6 10. c3 Bb7 11. Nf1 d4 12. c4 h6 13. h4 Qc7 14. Bf4 Kh7 15. N3h2 Nf5 16. Qd2 Qd8 17. Ng4 Qe7 18. Nfh2 Na5 19. Be4 h5 20. Bg5 Qc7 21. Nf6+ Kh8 22. g4 Bxe4 23. Rxe4 hxg4 24. Nhxg4 Nc6 25. h5 gxh5 26. Nxh5 Nxe5 27. Nxg7 Nf3+ 28. Kg2 Nxd2 29. Nxf5 Nxe4 30. Rh1+ Kg8 31. Bf6 1-0

[Event "Pan American-ch U18"]
[Site "Guaymallen"]
[Date "2001.05.29"]
[Round "1"]
[White "Sanhueza, Marcelo"]
[Black "Roisman, Fabio"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2025"]
[BlackElo "2247"]
[PlyCount "58"]
[EventDate "2001.05.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Nf3 Nc6 6. Bc4 Nb6 7. Bb3 d6 8. exd6 e6 9. d7+ Bxd7 10. cxd4 Be7 11. 0-0 0-0 12. Nc3 Bf6 13. Ne4 Be7 14. a3 Nd5 15. Bc2 Nf6 16. Nxf6+ Bxf6 17. Qd3 g6 18. Bh6 Bg7 19. Bxg7 Kxg7 20. h4 Qf6 21. Qe4 Ne7 22. Ne5 Bc6 23. Qg4 h5 24. Qg3 Rac8 25. Rac1 Rfd8 26. Rfd1 Nd5 27. Be4 Nf4 28. Qe3 Bxe4 29. Qxe4 Rxd4 0-1

[Event "Pan American-ch U18"]
[Site "Guaymallen"]
[Date "2001.01.02"]
[Round "5"]
[White "Sanhueza, Marcelo"]
[Black "De Bona, Glauber"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2025"]
[PlyCount "38"]
[EventDate "2001.05.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Nf3 Nc6 6. Bc4 e6 7. cxd4 d6 8. 0-0 Be7 9. Nc3 Nxc3 10. bxc3 0-0 11. exd6 Bxd6 12. Bd3 h6 13. Re1 Qc7 14. Qe2 Ne7 15. Bd2 Nd5 16. Qe4 Nf6 17. Qh4 Ne8 18. Qe4 Nf6 19. Qh4 Ne8 1/2-1/2

[Event "Pan American-ch U18"]
[Site "Bento Goncalves"]
[Date "2000.??.??"]
[Round "4"]
[White "Bartman, Arts Arturo"]
[Black "Sanhueza, Marcelo"]
[Result "1/2-1/2"]
[ECO "E94"]
[BlackElo "2005"]
[PlyCount "65"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 d6 3. d4 Nbd7 4. Nc3 g6 5. e4 Bg7 6. Be2 0-0 7. 0-0 c6 8. Qc2 Qc7 9. Rd1 e5 10. dxe5 dxe5 11. b4 Re8 12. h3 Nf8 13. Be3 Ne6 14. c5 Bd7 15. Rac1 Rad8 16. a4 Bc8 17. Nb1 Nd4 18. Nxd4 exd4 19. Bxd4 Nxe4 20. Bxg7 Kxg7 21. Rxd8 Qxd8 22. Nc3 Bf5 23. Nxe4 Bxe4 24. Qc3+ Kg8 25. Rd1 Qe7 26. Bf3 Bxf3 27. Qxf3 Rd8 28. Rxd8+ Qxd8 29. Qf4 Qd1+ 30. Kh2 Qxa4 31. Qb8+ Kg7 32. Qxb7 a6 33. Qb6 1/2-1/2

[Event "Pan American-ch U18"]
[Site "Bento Goncalves"]
[Date "2000.??.??"]
[Round "6"]
[White "De Oliveira, Neto George"]
[Black "Sanhueza, Marcelo"]
[Result "0-1"]
[ECO "E94"]
[BlackElo "2005"]
[PlyCount "62"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 d6 3. d4 g6 4. Nc3 Bg7 5. e4 Nbd7 6. Be2 0-0 7. 0-0 c6 8. h3 e5 9. d5 c5 10. Bg5 h6 11. Bh4 a6 12. Qc2 g5 13. Bg3 Nh5 14. Ne1 Ndf6 15. Nd1 Nf4 16. Rb1 N6h5 17. Bxh5 Nxh5 18. Ne3 b5 19. a3 bxc4 20. Nxc4 f5 21. Qe2 Nf6 22. f3 f4 23. Bf2 a5 24. b4 axb4 25. axb4 cxb4 26. Rxb4 Ba6 27. Qa2 Nh5 28. Nd3 Kh7 29. Kh2 g4 30. Ne1 gxh3 31. g3 fxg3+ 0-1

[Event "Pan American-ch U18"]
[Site "Bento Goncalves"]
[Date "2000.??.??"]
[Round "2"]
[White "Rodriguez, Santiago"]
[Black "Sanhueza, Marcelo"]
[Result "0-1"]
[ECO "A04"]
[BlackElo "2005"]
[PlyCount "82"]
[EventDate "2000.??.??"]
[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. d3 c5 3. Nf3 Nc6 4. g3 Nge7 5. Bg2 g6 6. 0-0 Bg7 7. Nbd2 0-0 8. Nh4 d5 9. c3 b6 10. Re1 Ba6 11. Nf1 Rc8 12. Nf3 Qd7 13. e5 d4 14. c4 Qc7 15. Bf4 h6 16. h4 Bb7 17. N1d2 Nb8 18. Ne4 Bxe4 19. Rxe4 Nec6 20. Qd2 Kh7 21. Bh3 Nd7 22. Qe2 Rb8 23. Re1 b5 24. cxb5 Rxb5 25. b3 Nb4 26. h5 Ra5 27. a4 Qb6 28. Bd2 Ra6 29. hxg6+ fxg6 30. Rh4 Nc2 31. Rc1 Qxb3 32. Bxh6 Bxh6 33. Qd2 Ne3 34. fxe3 Rxf3 35. exd4 Rxg3+ 36. Kh2 g5 37. Rxh6+ Kxh6 38. Kxg3 Qxa4 39. Bg4 Qxd4 40. Rh1+ Kg6 41. Bh5+ Kf5 0-1

[Event "Pan American-ch U18"]
[Site "Bento Goncalves"]
[Date "2000.??.??"]
[Round "6"]
[White "Sanhueza, Marcelo"]
[Black "Benedetto, Abel"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "2005"]
[BlackElo "2175"]
[PlyCount "25"]
[EventDate "2000.??.??"]
[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 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. 0-0 0-0 7. Qe2 exd4 8. Nxd4 Ne5 9. Bb3 c5 10. Ndb5 Be6 11. Na3 b5 12. Bd5 Rb8 13. Nd1 0-1

[Event "Pan American-ch U18"]
[Site "Bento Goncalves"]
[Date "2000.??.??"]
[Round "5"]
[White "Sanhueza, Marcelo"]
[Black "Jarrouj, Jackson"]
[Result "0-1"]
[ECO "B26"]
[WhiteElo "2005"]
[PlyCount "64"]
[EventDate "2000.??.??"]
[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. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 Rb8 6. Be3 d6 7. Qd2 b5 8. f4 Nd4 9. Nf3 e6 10. 0-0 Ne7 11. Qf2 Nec6 12. Nh4 b4 13. Nd1 Ne7 14. f5 exf5 15. exf5 Nexf5 16. Nxf5 Bxf5 17. g4 Be6 18. c3 bxc3 19. bxc3 Nb5 20. Bc6+ Kf8 21. d4 cxd4 22. cxd4 d5 23. a4 Nd6 24. Nc3 Nc4 25. Rab1 Rxb1 26. Rxb1 Nxe3 27. Qxe3 h5 28. g5 Kg8 29. Rb5 a6 30. Rb7 Kh7 31. h4 Qd6 32. Rb6 Rc8 0-1

[Event "Pan American-ch U18"]
[Site "Bento Goncalves"]
[Date "2000.??.??"]
[Round "1"]
[White "Sanhueza, Marcelo"]
[Black "Pinheiro, Iung Alicio"]
[Result "0-1"]
[ECO "B26"]
[WhiteElo "2005"]
[PlyCount "106"]
[EventDate "2000.??.??"]
[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. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 e5 7. Qd2 Nge7 8. Nf3 Qa5 9. 0-0 Nd4 10. Kh1 h6 11. Ng1 g5 12. Qd1 Be6 13. Nce2 0-0-0 14. Nxd4 exd4 15. Bd2 Qb6 16. Qc1 Kb8 17. c3 d5 18. f4 gxf4 19. Bxf4+ Ka8 20. a4 dxe4 21. a5 Qa6 22. dxe4 Bb3 23. Ra3 Bc4 24. Re1 dxc3 25. bxc3 Ng6 26. Be3 Ne5 27. Rd1 Nd3 28. Qc2 Rhe8 29. Nh3 f5 30. Nf2 Nxf2+ 31. Bxf2 Bd3 32. Qd2 fxe4 33. Bxc5 Rd5 34. Qe3 Rc8 35. Bd4 Bxd4 36. cxd4 Qd6 37. Raxd3 exd3 38. Bxd5 Qxd5+ 39. Kg1 Qxa5 40. Qxd3 Qd5 41. Qd2 a5 42. Ra1 b6 43. Qd3 Kb7 44. Re1 Rc7 45. Ra1 Rc4 46. Rd1 a4 47. Qh7+ Ka6 48. Qd3 b5 49. Qd2 h5 50. Qd3 Rc6 51. Ra1 Qc4 52. Qd2 Qc3 53. Qd1 Rd6 0-1

[Event "Pan American-ch U18"]
[Site "Bento Goncalves"]
[Date "2000.??.??"]
[Round "3"]
[White "Sanhueza, Marcelo"]
[Black "Segura, Luis"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2005"]
[PlyCount "82"]
[EventDate "2000.??.??"]
[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 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Ne7 6. 0-0 c5 7. c3 Nec6 8. Be3 Qb6 9. Qd2 cxd4 10. cxd4 Bb4 11. Nc3 Nd7 12. Nh4 Be4 13. f3 Bg6 14. Rac1 0-0 15. Nxg6 hxg6 16. f4 Rac8 17. g4 f5 18. gxf5 gxf5 19. Bh5 Kh7 20. Qg2 Ne7 21. Rf3 g6 22. Rh3 Kg7 23. Rg3 Rg8 24. Bxg6 Nxg6 25. Rxg6+ Kf7 26. Rg5 Rxg5 27. fxg5 Kg6 28. Qh3 Bf8 29. Qh8 Rd8 30. Qh3 Bg7 31. Ne2 Rh8 32. Nf4+ Kf7 33. g6+ Kg8 34. Rc8+ Nf8 35. Qg2 Rh6 36. Qc2 Bxe5 37. Rxf8+ Kxf8 38. Nxe6+ Qxe6 39. Bxh6+ Bg7 40. Bxg7+ Kxg7 41. Qg2 Qe3+ 1/2-1/2

[Event "Pan American-ch U16"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "2"]
[White "Bustamante Casas, Richard"]
[Black "Sanhueza, Marcelo"]
[Result "1-0"]
[ECO "D26"]
[PlyCount "45"]
[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. d4 d5 2. c4 dxc4 3. e3 e6 4. Bxc4 Nf6 5. Nf3 c6 6. 0-0 Bd6 7. Nc3 0-0 8. b3 Qc7 9. Bb2 Nbd7 10. Rc1 e5 11. Nb5 cxb5 12. Bxf7+ Rxf7 13. Rxc7 Bxc7 14. dxe5 Nxe5 15. Bxe5 Bxe5 16. Nxe5 Rf8 17. Qd3 a6 18. a4 bxa4 19. Qc4+ Kh8 20. bxa4 b5 21. Qc6 Bf5 22. axb5 axb5 23. Qxb5 1-0

[Event "Santiago Esucomex op"]
[Site "Santiago de Chile"]
[Date "1998.??.??"]
[Round "6"]
[White "Cantuarias, Pablo"]
[Black "Sanhueza, Marcelo"]
[Result "1-0"]
[ECO "A17"]
[PlyCount "67"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHI"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. cxd5 exd5 5. Nc3 c6 6. e3 Bg4 7. Bg2 Be7 8. 0-0 0-0 9. Qc2 h6 10. a3 Bd6 11. b4 Qc8 12. d4 Qe6 13. Nd2 Bh3 14. Re1 Bxg2 15. Kxg2 Re8 16. e4 Qg4 17. f3 Qg6 18. Qb3 Nh5 19. e5 Nf4+ 20. Kh1 Nh5 21. Qb1 Qe6 22. g4 Nf4 23. Nf1 Ng6 24. Bxh6 gxh6 25. exd6 Qd7 26. Rxe8+ Qxe8 27. Qe1 Qf8 28. Qg3 Nd7 29. Ne3 Nf6 30. Nf5 Kh7 31. Qh3 Ng8 32. g5 Qc8 33. Qg4 N8e7 34. dxe7 1-0

[Event "Pan American-ch U16"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "5"]
[White "Gutierrez, Ignacio"]
[Black "Sanhueza, Marcelo"]
[Result "1/2-1/2"]
[ECO "B23"]
[PlyCount "68"]
[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 c5 2. Nc3 Nc6 3. f4 e6 4. Nf3 d5 5. d4 dxe4 6. Nxe4 Nxd4 7. Be3 Nxf3+ 8. Qxf3 Qc7 9. 0-0-0 Bd7 10. Qg3 Nh6 11. Bxc5 Bxc5 12. Nxc5 Qxc5 13. Qxg7 Qf8 14. Qd4 Bc6 15. Bc4 Nf5 16. Qd3 a6 17. Rhe1 Qe7 18. g4 Ng7 19. Qd4 0-0 20. f5 Rad8 21. Qf4 Rxd1+ 22. Kxd1 Qf6 23. Kc1 exf5 24. g5 Qg6 25. h4 Re8 26. Rd1 Re4 27. Qb8+ Ne8 28. Rd8 Rxc4 29. Rxe8+ Bxe8 30. Qxe8+ Kg7 31. Qe5+ f6 32. Qe7+ Qf7 33. gxf6+ Kg8 34. Qe8+ Qf8 1/2-1/2

[Event "Pan American-ch U16"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "6"]
[White "Sabino, Rafael"]
[Black "Sanhueza, Marcelo"]
[Result "1/2-1/2"]
[ECO "D46"]
[PlyCount "41"]
[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. d4 Nf6 2. c4 e6 3. Nc3 d5 4. e3 Be7 5. Nf3 c6 6. Bd3 Nbd7 7. c5 0-0 8. 0-0 Qc7 9. h3 e5 10. Nh2 e4 11. Be2 b6 12. b4 Re8 13. Ng4 Nxg4 14. Bxg4 Nf6 15. Bxc8 Raxc8 16. a4 bxc5 17. bxc5 Qd7 18. Ne2 Qf5 19. Ng3 Qg5 20. Bd2 h5 21. Ba5 1/2-1/2

[Event "Pan American-ch U16"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "3"]
[White "Sanhueza, Marcelo"]
[Black "Abreu, Diego R"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "95"]
[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. exd5 exd5 4. Bd3 Nf6 5. Nf3 Nc6 6. c3 Be7 7. 0-0 0-0 8. h3 a6 9. Qc2 Re8 10. Bg5 g6 11. Bh6 Bf8 12. Bg5 Bg7 13. h4 Bg4 14. Nh2 Qd7 15. f3 Bf5 16. g4 Bxd3 17. Qxd3 Re6 18. Na3 b5 19. Nc2 h6 20. Bd2 h5 21. g5 Nh7 22. f4 f5 23. Nf3 Rae8 24. Rae1 Re4 25. Ne5 Qe6 26. Rf3 Nf6 27. gxf6 Qxf6 28. Rh3 Bh6 29. Qg3 Nxe5 30. dxe5 Rxe1+ 31. Nxe1 Qe7 32. Qxg6+ Bg7 33. Qxh5 Qf7 34. Qxf7+ Kxf7 35. Nf3 Ke7 36. Nd4 Rg8 37. Nxf5+ Kf7 38. Nxg7 Rxg7+ 39. Kf2 Ke6 40. h5 Rh7 41. Kg3 Kf5 42. Kh4 c5 43. Rg3 d4 44. b4 dxc3 45. Rxc3 cxb4 46. Rf3 a5 47. Rh3 Rd7 48. h6 1-0

[Event "Santiago Esucomex op"]
[Site "Santiago de Chile"]
[Date "1998.??.??"]
[Round "7"]
[White "Sanhueza, Marcelo"]
[Black "Dorador, Leonardo"]
[Result "0-1"]
[ECO "C42"]
[PlyCount "76"]
[EventDate "1998.??.??"]
[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 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d3 Nf6 6. Nc3 Nc6 7. Be2 Be6 8. d4 d5 9. Bg5 Bb4 10. Qd3 Bxc3+ 11. bxc3 0-0 12. Ne5 h6 13. Nxc6 bxc6 14. Bh4 Re8 15. 0-0 Bf5 16. Qxf5 Rxe2 17. Qd3 Re6 18. Rae1 Qd7 19. Re2 Ne4 20. f3 Nd6 21. Rfe1 Rae8 22. Bg3 Nc4 23. Rxe6 Rxe6 24. Rb1 Qc8 25. Bf2 g6 26. g3 Kg7 27. Qd1 Qa6 28. Ra1 Qa3 29. Be1 Ne3 30. Qb1 Qa6 31. Bf2 Qb5 32. Qc1 Nc4 33. Qd1 Ne3 34. Qc1 Nc4 35. Qd1 Qa5 36. Be1 Re3 37. Kg2 Qa3 38. Bd2 Rxc3 0-1

[Event "Pan American-ch U16"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "1"]
[White "Sanhueza, Marcelo"]
[Black "Fontana, Rodrigo Dal Bosco"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "80"]
[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 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. Nxf6+ gxf6 12. c4 b4 13. Nc2 f5 14. exf5 Bxf5 15. Ne3 Bg6 16. Bd3 e4 17. Bc2 0-0 18. 0-0 Qf6 19. Rb1 Qe5 20. Ng4 Qe6 21. b3 f5 22. Ne3 f4 23. Qd5 Qxd5 24. Nxd5 Rae8 25. Nc7 Re5 26. Rbd1 Rf7 27. Nd5 a5 28. f3 e3 29. Bxg6 hxg6 30. Rfe1 Re6 31. Kf1 g5 32. Ke2 Kg7 33. g3 Rh6 34. gxf4 Rxh2+ 35. Kxe3 gxf4+ 36. Ke4 Ne5 37. Rg1+ Kf8 38. Rde1 Nd7 39. Nxf4 Ne5 40. Ke3 Re7 0-1

[Event "Pan American-ch U16"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "4"]
[White "Sanhueza, Marcelo"]
[Black "Mancilla, Cesar"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "66"]
[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 d6 5. 0-0 Be7 6. Nxd4 Bd7 7. Nf5 Bf6 8. Qf3 Ne5 9. Qb3 Nxc4 10. Qxc4 a6 11. Nc3 b5 12. Qd5 Bxf5 13. Qxf5 Ne7 14. Qg4 0-0 15. h4 Ng6 16. h5 Ne5 17. Qh3 c6 18. f4 Nc4 19. Rb1 h6 20. f5 Bd4+ 21. Kh1 Qf6 22. Nd1 Rfe8 23. c3 Bb6 24. Qg4 Ne5 25. Qg3 Nd7 26. Rf4 d5 27. Nf2 Bc7 28. Ng4 Qg5 29. Nxh6+ Qxh6 30. Rg4 Qxh5+ 31. Qh3 Qxh3+ 32. gxh3 Rxe4 33. Rg2 Rh4 0-1

[Event "Santiago Esucomex op"]
[Site "Santiago de Chile"]
[Date "1998.??.??"]
[Round "5"]
[White "Sanhueza, Marcelo"]
[Black "Miranda, Daniel"]
[Result "0-1"]
[ECO "B18"]
[PlyCount "32"]
[EventDate "1998.??.??"]
[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 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Nf6 6. Nf3 h6 7. Be2 e6 8. a3 Bd6 9. 0-0 Qc7 10. h3 Nbd7 11. Bd3 Bxd3 12. Qxd3 0-0-0 13. Be3 Rhe8 14. a4 e5 15. a5 e4 16. Nxe4 Nxe4 0-1

