[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.21"]
[Round "9"]
[White "Guzman, Oswaldo"]
[Black "Melara, Moises"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "2066"]
[BlackElo "1772"]
[PlyCount "67"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 a5 7. Bd3 Bd7 8. Bc2 Rc8 9. 0-0 Be7 10. b3 h5 11. h4 Nh6 12. Bg5 Bxg5 13. hxg5 Ng4 14. g6 f5 15. exf6 gxf6 16. Qd3 Kf8 17. Nbd2 Kg7 18. Rfe1 cxd4 19. cxd4 Ne7 20. Nf1 Nf5 21. Qd2 Nd6 22. Rac1 a4 23. bxa4 Nc4 24. Qb4 Qxb4 25. axb4 Rhe8 26. Ng3 Kh6 27. g7 Rg8 28. Bd3 Rxg7 29. Bxc4 dxc4 30. Nd2 Bxa4 31. Rxe6 c3 32. Nde4 Kg6 33. Rxc3 Rxc3 34. Nxc3 1-0

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.20"]
[Round "7"]
[White "Guzman, Oswaldo"]
[Black "Deras, Rafael"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "2066"]
[PlyCount "45"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Nc6 6. a3 Nge7 7. Bd3 c4 8. Bc2 Ng6 9. 0-0 Be7 10. Nbd2 0-0 11. Rb1 Qa6 12. g3 Bd7 13. h4 f6 14. Qe2 fxe5 15. Bxg6 hxg6 16. Nxe5 Bc8 17. Nxg6 Rf5 18. Nxe7+ Nxe7 19. Nf3 Nc6 20. Ng5 b5 21. Qh5 Kf8 22. Qh8+ Ke7 23. Qxg7+ 1-0

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.20"]
[Round "8"]
[White "Johnson, Joshua"]
[Black "Guzman, Oswaldo"]
[Result "1-0"]
[ECO "B86"]
[WhiteElo "2211"]
[BlackElo "2066"]
[PlyCount "41"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. Be3 Be7 9. a4 0-0 10. 0-0 Qc7 11. Qe2 Bd7 12. Rad1 Rac8 13. f3 Na5 14. Ba2 Nc4 15. Bc1 b5 16. axb5 Bxb5 17. Ncxb5 axb5 18. Kh1 Qa5 19. Bb3 d5 20. exd5 exd5 21. Bxc4 1-0

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.19"]
[Round "6"]
[White "Colorado, Efrain"]
[Black "Guzman, Oswaldo"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "1841"]
[BlackElo "2066"]
[PlyCount "133"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 a6 3. Nf3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Be3 e5 7. Nb3 Be7 8. f3 Be6 9. Qd2 0-0 10. Be2 a5 11. a4 Na6 12. 0-0 Nb4 13. Nc1 d5 14. exd5 Nfxd5 15. Nxd5 Nxd5 16. Nd3 Nxe3 17. Qxe3 Qd4 18. Qxd4 exd4 19. Nf4 Bd7 20. Nd5 Bc5 21. Bd3 Bc6 22. Nf4 Rfe8 23. b3 Bd6 24. Ne2 Bb4 25. Ng3 g6 26. Rf2 Kg7 27. Re2 f5 28. Rxe8 Rxe8 29. Ne2 Rd8 30. Kf2 Kf6 31. Rc1 Bc5 32. Ng3 b6 33. Ne2 Be8 34. Kf1 Bf7 35. Ng3 h5 36. Kf2 Bf8 37. Ne2 Bh6 38. f4 Bf8 39. h4 Bc5 40. g3 Bd5 41. Ng1 Re8 42. Nf3 Re3 43. Ne5 Bd6 44. Nc4 Rf3+ 45. Ke2 Bc7 46. Rg1 Ke6 47. Nd2 Re3+ 48. Kf2 Kf6 49. Re1 Rxe1 50. Kxe1 Ke7 51. Kf2 Ke6 52. Nf3 Bxf3 53. Kxf3 Kd5 54. Bc4+ Kc5 55. Ke2 Kd6 56. Bf7 g5 57. hxg5 h4 58. gxh4 Ke7 59. Bg6 Bxf4 60. Kf3 Bd2 61. Bxf5 Kf7 62. Kg4 Kg7 63. h5 Kh8 64. Be6 Kg7 65. h6+ Kh8 66. Kh5 d3 67. cxd3 1-0

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.18"]
[Round "5"]
[White "Guzman, Oswaldo"]
[Black "Garcia Flores, Aristides"]
[Result "1-0"]
[ECO "C43"]
[WhiteElo "2066"]
[PlyCount "37"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. e5 Nd5 5. Qxd4 Nb6 6. Bf4 Nc6 7. Qd2 Be7 8. Nc3 Nc4 9. Bxc4 0-0 10. 0-0 Re8 11. Rfe1 b6 12. Rad1 a5 13. Nd5 Bb7 14. Nxe7+ Rxe7 15. Bg5 Qe8 16. Bxe7 Nxe7 17. Ng5 Kh8 18. Nxf7+ Kg8 19. Nd6+ 1-0

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.18"]
[Round "4"]
[White "Ruballo, Jose"]
[Black "Guzman, Oswaldo"]
[Result "1/2-1/2"]
[ECO "B94"]
[WhiteElo "1662"]
[BlackElo "2066"]
[PlyCount "91"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. f4 Qc7 8. Qf3 e5 9. Nde2 Be7 10. 0-0-0 b5 11. g4 b4 12. Nd5 Nxd5 13. exd5 Bxg5 14. fxg5 Bb7 15. Bg2 Rc8 16. Rd2 Nb6 17. Ng3 Bxd5 18. Qf2 Bxg2 19. Qxg2 0-0 20. Nf5 d5 21. Qh3 d4 22. Rf1 Nd5 23. Qf3 Nf4 24. h4 d3 25. Qe4 Rb8 26. Kb1 Qa5 27. Ne7+ Kh8 28. Nc6 dxc2+ 29. Rxc2 Qb5 30. Rxf4 exf4 31. Nxb8 Qxb8 32. Rf2 b3 33. Qxf4 bxa2+ 34. Kxa2 Qb6 35. Rc2 Qe6+ 36. Qc4 Qb6 37. Qxf7 Qa5+ 38. Kb1 Qe1+ 39. Ka2 Re8 40. Qf5 Qb4 41. Rc8 Qa4+ 42. Kb1 Qd1+ 43. Ka2 Qa4+ 44. Kb1 Qd1+ 45. Ka2 Qa4+ 46. Kb1 1/2-1/2

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.17"]
[Round "3"]
[White "Guzman, Oswaldo"]
[Black "Munoz, Randall"]
[Result "0-1"]
[ECO "B86"]
[WhiteElo "2066"]
[BlackElo "1706"]
[PlyCount "62"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. 0-0 Nc5 9. Qf3 Qc7 10. Re1 b5 11. Nd5 exd5 12. exd5+ Be7 13. Nc6 Ng8 14. Qc3 Kf8 15. Bf4 Nb7 16. h4 h5 17. Qe3 Bf5 18. Re2 Bxh4 19. Rae1 Bd7 20. Bg5 Bxg5 21. Qxg5 f6 22. Qg3 Re8 23. c3 Rxe2 24. Rxe2 h4 25. Qe3 Rh5 26. Ne7 Nxe7 27. Qxe7+ Kg8 28. f4 Rh7 29. Bc2 g6 30. Qxf6 Qd8 31. Qd4 Rg7 0-1

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.17"]
[Round "2"]
[White "Lopez Gonzalez, Abel Fabian"]
[Black "Guzman, Oswaldo"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "2251"]
[BlackElo "2066"]
[PlyCount "69"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f3 b5 8. Qd2 Nbd7 9. 0-0-0 Bb7 10. g4 Nb6 11. g5 Nfd7 12. Qg2 Rc8 13. g6 Rxc3 14. gxf7+ Kxf7 15. Qg4 Nc5 16. bxc3 Nba4 17. Nxb5 axb5 18. Bxb5 Nxc3 19. Qh5+ g6 20. Qxc5 dxc5 21. Rxd8 Nxb5 22. Rd7+ Kf6 23. Rxb7 Nd6 24. Rd7 Nc4 25. Bd2 Bd6 26. Rxd6 Nxd6 27. e5+ Kf5 28. exd6 Rd8 29. Rg1 e5 30. Rg5+ Kf6 31. f4 e4 32. Bc3+ Ke6 33. Rxc5 Kxd6 34. Re5 Ra8 35. a3 1-0

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.16"]
[Round "1"]
[White "Guzman, Oswaldo"]
[Black "Perez, Denys"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2066"]
[PlyCount "67"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 e6 7. Nc3 Nge7 8. Be2 d6 9. Ndb5 Bxc3+ 10. Nxc3 0-0 11. Qd2 Kh8 12. 0-0 e5 13. Rad1 f5 14. f3 f4 15. Bf2 Rf6 16. c5 Qg8 17. cxd6 Nf5 18. exf5 gxf5 19. d7 Bxd7 20. Qxd7 Rd8 21. Qc7 Rf7 22. Rxd8 Rxc7 23. Rxg8+ Kxg8 24. Rd1 Kg7 25. Nb5 Rf7 26. Nxa7 Nxa7 27. Bxa7 h5 28. Rd5 Rc7 29. Rxe5 Kg6 30. Bd4 Kg5 31. h4+ Kxh4 32. Rxf5 Rc1+ 33. Kh2 Rf1 34. Bf6# 1-0

[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2010.05.26"]
[Round "9"]
[White "Guzman, Oswaldo"]
[Black "Valdez, Alvaro"]
[Result "1/2-1/2"]
[ECO "B40"]
[PlyCount "43"]
[EventDate "2010.05.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 e6 4. Be2 a6 5. 0-0 Be7 6. a4 d6 7. d4 cxd4 8. cxd4 e5 9. Nc3 Nf6 10. h3 0-0 11. Be3 Re8 12. Qb3 h6 13. d5 Nb8 14. Qa3 b6 15. b4 Nbd7 16. Rfc1 Bb7 17. Rc2 Rc8 18. Nd2 Rf8 19. Qc1 Nh7 20. Kh1 Bg5 21. Bxg5 Nxg5 22. Nc4 1/2-1/2

[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2010.05.25"]
[Round "8"]
[White "Ruiz Castillo, Joshua Daniel"]
[Black "Guzman, Oswaldo"]
[Result "0-1"]
[ECO "C56"]
[WhiteElo "2063"]
[PlyCount "55"]
[EventDate "2010.05.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qh5 9. Nxe4 Be6 10. Bg5 h6 11. Ng3 Qg6 12. Bh4 Bc5 13. a3 Bb6 14. b4 a6 15. Ne2 0-0 16. Nexd4 Bh3 17. Bg3 Nxd4 18. Nxd4 Bg4 19. Qd2 Rad8 20. c3 c5 21. bxc5 Bxc5 22. h3 Bh5 23. Qf4 Qd3 24. Re3 Qc4 25. Bh4 g5 26. Bxg5 hxg5 27. Qxg5+ Bg6 28. Ne6 0-1

[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2010.05.24"]
[Round "7"]
[White "Guzman, Oswaldo"]
[Black "Duque, Juan Camilo"]
[Result "1/2-1/2"]
[ECO "B22"]
[BlackElo "1972"]
[PlyCount "110"]
[EventDate "2010.05.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 d5 4. exd5 Qxd5 5. d4 cxd4 6. cxd4 e5 7. Nc3 Bb4 8. Bd2 Bxc3 9. Bxc3 e4 10. Ne5 Nxe5 11. dxe5 Ne7 12. Qa4+ Bd7 13. Qb4 a5 14. Qb6 0-0 15. Rd1 Qc6 16. Bxa5 Nd5 17. Qd4 Rxa5 18. b4 Rxa2 19. Bc4 Nxb4 20. 0-0 Nc2 21. Qd5 Qxd5 22. Rxd5 Ra4 23. Bb3 Rd4 24. Rxd7 Rxd7 25. Bxc2 Rd4 26. Rb1 Rc8 27. Bd1 g6 28. Kf1 b5 29. Ke2 b4 30. Ke3 Rcc4 31. Be2 Kf8 32. Bxc4 Rxc4 33. Kf4 Ke7 34. Ra1 h6 35. h4 Ke6 36. Ra6+ Kd5 37. Rd6+ Kc5 38. Rd7 b3 39. Rc7+ Kd5 40. Rxf7 Rb4 41. Rd7+ Ke6 42. Rd6+ Ke7 43. Rd1 b2 44. Rb1 Ke6 45. g4 h5 46. gxh5 gxh5 47. Kg5 Kxe5 48. Kxh5 Kf5 49. Kh6 Kg4 50. Kg6 Kxh4 51. Kf5 Kh3 52. Kf4 Kg2 53. Ke3 Kh3 54. f3 Rb3+ 55. Kxe4 Kg2 1/2-1/2

[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2010.05.23"]
[Round "5"]
[White "Guzman, Oswaldo"]
[Black "Valencia, David Fernando"]
[Result "1-0"]
[ECO "B22"]
[BlackElo "1826"]
[PlyCount "39"]
[EventDate "2010.05.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 g6 4. d4 cxd4 5. cxd4 d5 6. exd5 Qxd5 7. Nc3 Qd8 8. Bf4 Nf6 9. d5 Nb8 10. Qd4 Nbd7 11. Nb5 Bg7 12. Nc7+ Kf8 13. Nxa8 Nh5 14. Qd2 Nxf4 15. Qxf4 Bxb2 16. Rd1 Qa5+ 17. Nd2 Qxd5 18. Nc7 Qc6 19. Nb5 Qe6+ 20. Qe3 1-0

[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2010.05.23"]
[Round "6"]
[White "Saltos Velez, Adrian Arturo"]
[Black "Guzman, Oswaldo"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2131"]
[PlyCount "31"]
[EventDate "2010.05.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 a6 6. b4 Ba7 7. 0-0 0-0 8. Bg5 d6 9. Nbd2 Ne7 10. Bxf6 gxf6 11. Nh4 f5 12. Qh5 fxe4 13. Nxe4 Kg7 14. Ng5 h6 15. Nxf7 Qe8 16. Qxh6+ 1-0

[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2010.05.22"]
[Round "4"]
[White "Parra Meza, Brayan"]
[Black "Guzman, Oswaldo"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "1807"]
[PlyCount "96"]
[EventDate "2010.05.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 a6 6. Be3 Bxe3 7. fxe3 d5 8. exd5 Nxd5 9. Qe2 0-0 10. 0-0 Qd6 11. Nbd2 b5 12. Ne4 Qd8 13. Bxd5 Qxd5 14. Nfg5 f6 15. Qh5 Bf5 16. Rxf5 fxg5 17. Rxf8+ Rxf8 18. Qe2 Rd8 19. Rd1 h6 20. a3 Na5 21. Nf2 Nb3 22. d4 e4 23. Qg4 Re8 24. Qe2 Na5 25. Ng4 Nc4 26. Rf1 h5 27. Nf2 g4 28. Nd1 Re6 29. Rf4 g6 30. Qf2 Nd6 31. Rf8+ Kg7 32. Rf4 Nf5 33. Qc2 g5 34. Rf2 Kg6 35. b3 Rc6 36. Re2 g3 37. hxg3 Nxg3 38. Rf2 Qe6 39. Nb2 Qg4 40. Rf8 Qh4 41. c4 Qh1+ 42. Kf2 h4 43. Qd1 Qxd1 44. Nxd1 bxc4 45. bxc4 Rxc4 46. Rc8 Rc2+ 47. Kg1 Rc1 48. Rg8+ Kh5 0-1

[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2010.05.21"]
[Round "3"]
[White "Guzman, Oswaldo"]
[Black "Giron Chavez, David Emanuel"]
[Result "0-1"]
[ECO "B40"]
[BlackElo "1997"]
[PlyCount "36"]
[EventDate "2010.05.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 Nf6 4. Qc2 Nc6 5. Bb5 d5 6. Bxc6+ bxc6 7. d3 c4 8. Ne5 cxd3 9. Qxd3 Qc7 10. f4 Nxe4 11. 0-0 Bc5+ 12. Be3 Qb6 13. Rf3 Bxe3+ 14. Qxe3 Qxb2 15. Rf1 Qxa1 16. Qe2 Rb8 17. Qc2 Qb2 18. Qa4 Qb6+ 0-1

[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2010.05.21"]
[Round "2"]
[White "Sanchez Maya, Simon"]
[Black "Guzman, Oswaldo"]
[Result "1-0"]
[ECO "C44"]
[WhiteElo "2166"]
[PlyCount "35"]
[EventDate "2010.05.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 e5 2. d4 exd4 3. c3 d5 4. exd5 Qxd5 5. cxd4 Nc6 6. Nf3 Bg4 7. Nc3 Bb4 8. Be2 0-0-0 9. 0-0 Qa5 10. Be3 Bxc3 11. bxc3 Qxc3 12. Rb1 Nf6 13. Qa4 Nd5 14. Bd2 Nb6 15. Rxb6 Rxd4 16. Nxd4 Qxd4 17. Bxg4+ Kb8 18. Rxb7+ 1-0

[Event "Pan American-ch U20"]
[Site "Cali"]
[Date "2010.05.20"]
[Round "1"]
[White "Guzman, Oswaldo"]
[Black "Moran, Daniel Stiven"]
[Result "1/2-1/2"]
[ECO "C01"]
[BlackElo "2084"]
[PlyCount "96"]
[EventDate "2010.05.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 e6 2. c3 d5 3. exd5 exd5 4. d4 Bd6 5. Nf3 Ne7 6. Be2 0-0 7. h3 Bf5 8. 0-0 c5 9. dxc5 Bxc5 10. Nbd2 Nbc6 11. Nb3 Bb6 12. Bf4 Qd7 13. Qd2 Rad8 14. Rad1 Be4 15. Rfe1 h6 16. Qc1 Qf5 17. Be3 Bc7 18. Nbd4 Qg6 19. Nb5 Be5 20. Nxa7 Nxa7 21. Bxa7 b6 22. Bxb6 Qxb6 23. Nxe5 Qf6 24. Nf3 Ng6 25. Nd4 Nf4 26. f3 Qg5 27. Bf1 Bh7 28. Kh2 Qf6 29. g3 Ne6 30. Qe3 Rfe8 31. Qf2 Ng5 32. Qg2 Ne6 33. Bd3 Bxd3 34. Rxd3 Nxd4 35. Rxe8+ Rxe8 36. Rxd4 Qa6 37. Rd2 Qxa2 38. f4 Re4 39. Rd4 f5 40. Qd2 Qa6 41. Rxe4 dxe4 42. Kg2 Qc4 43. Kf2 Qb3 44. Ke3 Qb6+ 45. Qd4 Qxb2 46. Qd5+ Kh8 47. Qxf5 Qxc3+ 48. Kxe4 Qxg3 1/2-1/2

