[Event "Lima Ingenieros CC op 2nd"]
[Site "Lima"]
[Date "2012.06.08"]
[Round "8"]
[White "Garcia Cerna, Jorge"]
[Black "Lescano Osorio, Oswaldo"]
[Result "0-1"]
[ECO "E68"]
[PlyCount "62"]
[EventDate "2012.06.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 d6 2. c4 g6 3. Nf3 Bg7 4. Nc3 Nf6 5. g3 0-0 6. Bg2 Re8 7. 0-0 Nbd7 8. e4 e5 9. d5 a5 10. Bg5 Nc5 11. a3 a4 12. Nd2 h6 13. Be3 Na6 14. Nxa4 Kh7 15. b4 Bd7 16. Nb2 Ng4 17. Qe2 Nxe3 18. Qxe3 f5 19. Nd3 Qe7 20. Kh1 Rf8 21. Rae1 Nb8 22. f4 Rxa3 23. Ra1 exf4 24. gxf4 Rxa1 25. e5 Rxf1+ 26. Nxf1 Re8 27. e6 Bc8 28. b5 b6 29. Nd2 Bxe6 30. dxe6 Qxe6 31. Qxe6 Rxe6 0-1

[Event "Lima Ingenieros CC op 2nd"]
[Site "Lima"]
[Date "2012.06.04"]
[Round "6"]
[White "Lescano Osorio, Oswaldo"]
[Black "Pasapera, Jorge"]
[Result "0-1"]
[ECO "B02"]
[BlackElo "1678"]
[PlyCount "30"]
[EventDate "2012.06.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 Nf6 2. d3 d5 3. e5 Nfd7 4. d4 e6 5. Nf3 Be7 6. g3 c5 7. c3 b6 8. Bg2 Ba6 9. Nbd2 Nc6 10. Nf1 cxd4 11. cxd4 Nb4 12. a3 Nd3+ 13. Kd2 Nxf2 14. Qa4 Nxh1 15. Bxh1 Bxf1 0-1

[Event "Lima Ingenieros CC op 2nd"]
[Site "Lima"]
[Date "2012.06.03"]
[Round "4"]
[White "Martinez Navarro, Christian Alexis"]
[Black "Lescano Osorio, Oswaldo"]
[Result "1/2-1/2"]
[ECO "E81"]
[WhiteElo "1456"]
[PlyCount "76"]
[EventDate "2012.06.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 d6 2. c4 g6 3. Nc3 Bg7 4. e4 Nf6 5. f3 0-0 6. Bg5 h6 7. Be3 Nbd7 8. Qd2 Kh7 9. Nge2 c6 10. h4 h5 11. Rg1 Rb8 12. g4 b5 13. Ng3 b4 14. Nd1 Rg8 15. gxh5 gxh5 16. Nf5 Qf8 17. Bg5 a5 18. Nf2 e6 19. Nxg7 Qxg7 20. Nh3 e5 21. Bxf6 Qxf6 22. Ng5+ Kh8 23. d5 c5 24. Bh3 Nf8 25. Bxc8 Rxc8 26. 0-0-0 Ng6 27. Ne6 Nf4 28. Nxf4 Qxf4 29. Qxf4 exf4 30. Kd2 Kh7 31. Rde1 f6 32. Kc2 a4 33. a3 b3+ 34. Kd2 Rg7 35. Rxg7+ Kxg7 36. Rg1+ Kh7 37. Rg2 Rg8 38. Rxg8 Kxg8 1/2-1/2

[Event "Lima Ingenieros CC op 2nd"]
[Site "Lima"]
[Date "2012.06.02"]
[Round "3"]
[White "Lescano Osorio, Oswaldo"]
[Black "Castillo Martinez, Paola"]
[Result "0-1"]
[ECO "B21"]
[BlackElo "1724"]
[PlyCount "87"]
[EventDate "2012.06.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 d3 4. Bxd3 Nc6 5. Nf3 d6 6. h3 g6 7. 0-0 Bg7 8. Re1 Nf6 9. Qe2 Qc7 10. Nbd2 0-0 11. Nf1 a6 12. a4 Bd7 13. Ng3 Rfe8 14. Bf4 Rac8 15. Qc2 Nb4 16. Qd2 Nxd3 17. Qxd3 Bc6 18. Qd2 Red8 19. Qe3 Qd7 20. a5 Qc7 21. Bh6 Bh8 22. Bf4 Bd7 23. Nd2 Qc5 24. Qxc5 Rxc5 25. Be3 Rcc8 26. Bb6 Re8 27. Kh2 Bc6 28. Rac1 Nd7 29. Nf3 Nxb6 30. axb6 Bg7 31. Rcd1 Bb5 32. Nd4 Bxd4 33. Rxd4 Rc6 34. Rd2 Rxb6 35. Rb1 Rc8 36. Rc1 Bc4 37. Ne2 Bxe2 38. Rxe2 Rbc6 39. Kg3 b5 40. Re3 b4 41. Kf3 bxc3 42. Rexc3 Rxc3+ 43. Rxc3 Rxc3+ 44. bxc3 0-1

[Event "Lima Ingenieros CC op 2nd"]
[Site "Lima"]
[Date "2012.06.02"]
[Round "2"]
[White "Quispe, Juan Gabriel"]
[Black "Lescano Osorio, Oswaldo"]
[Result "1/2-1/2"]
[ECO "A41"]
[WhiteElo "1900"]
[PlyCount "47"]
[EventDate "2012.06.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 d6 2. c4 g6 3. Nd2 Bg7 4. Nb3 Nf6 5. Bf4 0-0 6. Nf3 Nbd7 7. Qc2 Re8 8. e4 e5 9. dxe5 dxe5 10. Bd2 Qe7 11. c5 Nb8 12. Bc4 Nc6 13. 0-0 Bg4 14. Ng5 Rf8 15. h3 Bd7 16. f4 h6 17. Nf3 Rfc8 18. Nh4 Kh7 19. Nf3 exf4 20. Rad1 Nh5 21. e5 Bf5 22. Bd3 Bxd3 23. Qxd3 Rd8 24. Qc4 1/2-1/2

[Event "Lima Ingenieros CC op 2nd"]
[Site "Lima"]
[Date "2012.06.01"]
[Round "1"]
[White "Lescano Osorio, Oswaldo"]
[Black "Suyo, Adrian"]
[Result "1/2-1/2"]
[ECO "C42"]
[BlackElo "1847"]
[PlyCount "69"]
[EventDate "2012.06.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Nc6 7. Bf4 Be7 8. Qd2 Be6 9. Be2 Qd7 10. 0-0 0-0 11. h3 a6 12. a4 Bf6 13. Rfe1 Ne7 14. Bg5 Bxg5 15. Qxg5 h6 16. Qd2 Rae8 17. Bd3 Bf5 18. Nd4 Bg6 19. Nb3 f5 20. Bc4+ Bf7 21. Bxf7+ Rxf7 22. Nd4 Rff8 23. Nf3 Ng6 24. Qd5+ Kh7 25. Qxb7 Rxe1+ 26. Nxe1 d5 27. Nd3 Rf6 28. Qa8 f4 29. a5 Rd6 30. Qb7 f3 31. Qb3 fxg2 32. Kxg2 Qe7 33. Qb4 Nh4+ 34. Kf1 Rg6 35. Qf4 1/2-1/2

[Event "Lima Santisimo Nombre de Jesus 2"]
[Site "Lima"]
[Date "2012.05.16"]
[Round "7"]
[White "Granados Candia, Marco"]
[Black "Lescano Osorio, Oswaldo"]
[Result "1-0"]
[ECO "C57"]
[WhiteElo "1640"]
[PlyCount "51"]
[EventDate "2012.05.12"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bc5 5. Nxf7 Bxf2+ 6. Kf1 Qe7 7. Nxh8 d5 8. Be2 Be6 9. Kxf2 0-0-0 10. d3 Rxh8 11. Bg5 Rf8 12. Ke1 dxe4 13. Rf1 h6 14. Bxf6 gxf6 15. Nc3 exd3 16. Bxd3 f5 17. Qh5 Qf6 18. Ne4 Qg7 19. Nc5 Bd5 20. Rxf5 Rxf5 21. Qxf5+ Kb8 22. Nd7+ Ka8 23. Qf8+ Qxf8 24. Nxf8 Bxg2 25. Kf2 Bd5 26. Ng6 1-0

[Event "Lima Santisimo Nombre de Jesus 2"]
[Site "Lima"]
[Date "2012.05.16"]
[Round "8"]
[White "Lescano Osorio, Oswaldo"]
[Black "Ugarelli Ancasi, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "C00"]
[PlyCount "123"]
[EventDate "2012.05.12"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 Nc6 2. d3 e6 3. Nf3 Nge7 4. g3 g6 5. Bg2 Bg7 6. 0-0 0-0 7. c3 d5 8. Nbd2 f5 9. Re1 dxe4 10. dxe4 Re8 11. e5 Nd5 12. Nb3 Nb6 13. Qc2 Qe7 14. Bg5 Qf7 15. Nbd4 Nxd4 16. Nxd4 Bd7 17. Bxb7 Rab8 18. Bg2 Nd5 19. Bxd5 exd5 20. Bf4 Kh8 21. Qe2 Rb6 22. a4 a5 23. Qd2 c5 24. Nf3 Be6 25. Ng5 Qe7 26. Nxe6 Rxe6 27. Qxd5 Bxe5 28. Bxe5+ Rxe5 29. Rxe5 Qxe5 30. Qxe5+ Rxe5 31. Kf1 f4 32. gxf4 Re4 33. Kg2 Rxf4 34. b3 Kg7 35. Ra2 Kf6 36. c4 Rd4 37. Rb2 Rd3 38. f3 Kf5 39. Kf2 Kf4 40. Ke1 Kxf3 41. Rf2+ Ke3 42. Rf7 Rxb3 43. Re7+ Kd4 44. Rxh7 Kxc4 45. Rg7 Rb1+ 46. Kf2 Rb2+ 47. Kg3 Rb1 48. Rc7 Rg1+ 49. Kf2 Rg5 50. Rf7 Kb3 51. Rf3+ Kxa4 52. Rf4+ Kb5 53. h4 Rh5 54. Rg4 c4 55. Ke2 Kc6 56. Rxg6+ Kd5 57. Rg5+ Rxg5 58. hxg5 Ke6 59. g6 Kf6 60. Kd2 a4 61. Kc3 a3 62. Kc2 1/2-1/2

[Event "Lima Santisimo Nombre de Jesus 2"]
[Site "Lima"]
[Date "2012.05.15"]
[Round "6"]
[White "Arroyo Valenzuela, Luigi"]
[Black "Lescano Osorio, Oswaldo"]
[Result "1-0"]
[ECO "C44"]
[PlyCount "69"]
[EventDate "2012.05.12"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. d4 exd4 5. e5 Qe7 6. cxd4 d6 7. Bb5 Bd7 8. 0-0 Ng8 9. Bg5 Qe6 10. d5 Qg6 11. dxc6 bxc6 12. Bd3 Bf5 13. Bxf5 Qxf5 14. exd6 Bxd6 15. Nc3 f6 16. Be3 Ne7 17. Qb3 Qd7 18. Rad1 Qc8 19. Ne4 Nd5 20. Nxd6+ cxd6 21. Nd4 Nb6 22. Qc2 Kd7 23. Qf5+ Ke7 24. Qxc8 Rhxc8 25. Nf5+ Ke6 26. Nxg7+ Kf7 27. Nf5 Ke6 28. Nxd6 Rd8 29. Ne4 Rxd1 30. Rxd1 Nd5 31. Nc3 Nxe3 32. fxe3 Ke5 33. Rd7 f5 34. Rxh7 f4 35. Rh5+ 1-0

[Event "Lima Santisimo Nombre de Jesus 2"]
[Site "Lima"]
[Date "2012.05.15"]
[Round "5"]
[White "Lescano Osorio, Oswaldo"]
[Black "Tovar, Paul Mateo"]
[Result "1-0"]
[ECO "C00"]
[PlyCount "115"]
[EventDate "2012.05.12"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. g3 Bb4 5. c3 Bd6 6. Bg2 0-0 7. Ngf3 Nc6 8. 0-0 Bd7 9. Re1 Re8 10. e5 Nxe5 11. Nxe5 Bxe5 12. Rxe5 Bc6 13. Nf3 Qd6 14. Bf4 d4 15. Nxd4 Bxg2 16. Kxg2 Nd5 17. Nb3 Nxf4+ 18. gxf4 Rad8 19. d4 f6 20. Re3 e5 21. Qf3 exf4 22. Ree1 Re7 23. Rxe7 Qxe7 24. Qxf4 Kf8 25. Qe3 Re8 26. Re1 b6 27. Qxe7+ Rxe7 28. Rxe7 Kxe7 29. Kf3 c5 30. dxc5 bxc5 31. Nxc5 Kd6 32. Ne4+ Ke5 33. b4 g5 34. a4 g4+ 35. Ke3 f5 36. Nc5 f4+ 37. Kd3 Kd6 38. Kd4 Kc6 39. Ke5 g3 40. hxg3 h5 41. Kxf4 a5 42. Kg5 Kb6 43. f4 h4 44. gxh4 axb4 45. cxb4 Kc6 46. h5 Kd5 47. h6 Kc4 48. h7 Kxb4 49. h8Q Kxc5 50. Qd8 Kc4 51. Qd6 Kc3 52. Qd5 Kb4 53. Kf5 Kc3 54. Ke4 Kb4 55. Kd4 Ka3 56. Qb7 Ka2 57. Kc3 Ka1 58. Qb2# 1-0

[Event "Lima Santisimo Nombre de Jesus 2"]
[Site "Lima"]
[Date "2012.05.14"]
[Round "4"]
[White "Lescano Osorio, Oswaldo"]
[Black "Fernandez, Roberto1111"]
[Result "0-1"]
[ECO "B21"]
[BlackElo "1556"]
[PlyCount "98"]
[EventDate "2012.05.12"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Nf3 Nc6 6. Bc4 g6 7. 0-0 Bg7 8. Bf4 a6 9. a4 Nge7 10. Qe2 Nd4 11. Nxd4 Bxd4 12. e5 Nc6 13. Rfd1 Qc7 14. Re1 0-0 15. Rad1 f6 16. Bh6 Rf7 17. exf6 Bxf6 18. Nd5 Qd8 19. Rd3 Bd4 20. Ne3 Qh4 21. Ng4 Bxf2+ 22. Nxf2 Qxh6 23. Rh3 Qf8 24. Nd3 d5 25. Ba2 Bd7 26. b3 Re8 27. Ne5 Nxe5 28. Qxe5 Rc8 29. Bb1 Qg7 30. Qxg7+ Kxg7 31. Rhe3 Re8 32. g3 Rfe7 33. Re5 Rc8 34. R5e3 Rd8 35. Rd1 Bc6 36. Re5 Rd6 37. Rde1 Bd7 38. Kg2 Kf6 39. Kf3 Rb6 40. Bc2 Rc6 41. Bd1 Rc3+ 42. Kg2 Bc6 43. Kh3 d4 44. Kh4 Bf3 45. Bxf3 Rxf3 46. R5e4 e5 47. Rc1 Rxb3 48. Ra1 Rc7 49. g4 g5+ 0-1

[Event "Lima Santisimo Nombre de Jesus 2"]
[Site "Lima"]
[Date "2012.05.14"]
[Round "4"]
[White "Vasquez, Cesar"]
[Black "Lescano Osorio, Oswaldo"]
[Result "1-0"]
[ECO "C95"]
[WhiteElo "1647"]
[PlyCount "99"]
[EventDate "2012.05.12"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. c3 d6 9. h3 Nb8 10. d4 Nbd7 11. Nbd2 Bb7 12. Bc2 c6 13. Nf1 a5 14. Ng3 Re8 15. a4 Bf8 16. axb5 cxb5 17. Qe2 Ba6 18. Bd3 Rb8 19. Bg5 h6 20. Bd2 Qc7 21. Nh4 g6 22. Rec1 Qd8 23. Nf3 Bg7 24. Ra2 d5 25. dxe5 Nh7 26. exd5 Nxe5 27. Bf4 Qxd5 28. Bb1 Nc6 29. Qc2 Rbc8 30. Rd1 Qc4 31. Qc1 h5 32. Ra1 a4 33. Ba2 Qc5 34. Bd6 Qb6 35. Qf4 Nf6 36. Ng5 Nd8 37. Re1 Qc6 38. Be5 Bb7 39. f3 Kf8 40. Rad1 Qb6+ 41. Kh1 Rc6 42. Bd6+ Kg8 43. Rxe8+ Nxe8 44. Bxf7+ Kh8 45. Bxe8 Rc4 46. N3e4 Bxe4 47. Nxe4 Kh7 48. Qg5 Qb7 49. Bxg6+ Kh8 50. Qxd8+ 1-0

[Event "Lima Santisimo Nombre de Jesus 2"]
[Site "Lima"]
[Date "2012.05.12"]
[Round "2"]
[White "Del Solar, Rafaella"]
[Black "Lescano Osorio, Oswaldo"]
[Result "0-1"]
[ECO "A29"]
[PlyCount "96"]
[EventDate "2012.05.12"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. g3 d5 5. b3 e4 6. Ng5 d4 7. Ncxe4 Nxe4 8. Nxe4 Bf5 9. Bg2 Qd7 10. d3 f6 11. a3 a5 12. Bb2 Be7 13. 0-0 0-0 14. a4 Bg6 15. Ba3 Bxa3 16. Rxa3 f5 17. Nd2 Qd6 18. Ra1 Rab8 19. f4 Rfe8 20. Nb1 Nb4 21. Na3 c6 22. Nc2 Re7 23. Nxb4 Qxb4 24. Rb1 Rbe8 25. Re1 Bh5 26. Bf1 Re3 27. Kf2 Qe7 28. Rb2 c5 29. Qd2 b6 30. Qd1 g5 31. Bg2 gxf4 32. gxf4 Qh4+ 33. Kg1 R8e7 34. Kh1 Rxd3 35. Bd5+ Kh8 36. exd3 Rxe1+ 37. Qxe1 Qxe1+ 38. Kg2 Qe3 39. Rf2 Qxd3 40. Bf3 Bxf3+ 41. Rxf3 Qe4 42. Kf2 Qc2+ 43. Kg3 d3 44. Re3 d2 45. Re8+ Kg7 46. Re7+ Kf6 47. Re2 d1Q 48. Rxc2 Qxc2 0-1

[Event "Lima Santisimo Nombre de Jesus 2"]
[Site "Lima"]
[Date "2012.05.12"]
[Round "1"]
[White "Lescano Osorio, Oswaldo"]
[Black "Pazos, Jorge Alberto"]
[Result "0-1"]
[ECO "A08"]
[BlackElo "1786"]
[PlyCount "96"]
[EventDate "2012.05.12"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 c5 4. g3 Ne7 5. Bg2 g6 6. Ngf3 Bg7 7. 0-0 0-0 8. Re1 Nbc6 9. e5 Qc7 10. Qe2 Nb4 11. Nf1 b5 12. c3 Nbc6 13. Bf4 a5 14. h4 Ba6 15. N1h2 Rfd8 16. Qd2 Ra7 17. Ng4 Kh8 18. Bh6 Bxh6 19. Qxh6 Ng8 20. Qg5 Nce7 21. h5 Nf5 22. hxg6 fxg6 23. Nf6 Rf8 24. Nxg8 Kxg8 25. g4 Ng7 26. Qh6 Ne8 27. Ng5 Bc8 28. Qh4 Qg7 29. Rac1 h6 30. Nf3 Raf7 31. Qg3 Rf4 32. d4 c4 33. Rc2 Qf7 34. Re3 Ng7 35. Kf1 h5 36. g5 Qf5 37. Rc1 h4 38. Qh2 Nh5 39. Bh3 Qf7 40. Bg2 Re4 41. Rce1 Rxe3 42. Rxe3 Qf5 43. Qxh4 Qb1+ 44. Re1 Qxb2 45. Qg4 Rf4 46. Qh3 Qxc3 47. Nh2 Ng3+ 48. Kg1 Qxe1+ 0-1

[Event "Pan American-ch U12"]
[Site "Cali"]
[Date "2011.07.08"]
[Round "9"]
[White "Lescano Osorio, Oswaldo"]
[Black "Gaitan Bautista, Oscar"]
[Result "1/2-1/2"]
[ECO "A29"]
[PlyCount "21"]
[EventDate "2011.07.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. c4 Nc6 2. Nc3 e5 3. Nf3 Nf6 4. g3 b6 5. Bg2 Bb7 6. Nxe5 Nxe5 7. Bxb7 Rb8 8. Bg2 Nxc4 9. Nd5 Nxd5 10. Bxd5 Ne5 11. Bg2 1/2-1/2

[Event "Pan American-ch U12"]
[Site "Cali"]
[Date "2011.07.07"]
[Round "7"]
[White "Lescano Osorio, Oswaldo"]
[Black "Ccorahua Quispe, Dennis Alberto"]
[Result "1/2-1/2"]
[ECO "A26"]
[PlyCount "29"]
[EventDate "2011.07.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 Nc6 4. Bg2 d6 5. d3 g6 6. Nf3 Bg7 7. 0-0 0-0 8. h3 Rb8 9. Bg5 Be6 10. Bxf6 Qxf6 11. Qc2 Qe7 12. Rab1 Qd7 13. Kh2 f5 14. e3 Bh6 15. Rbe1 1/2-1/2

[Event "Pan American-ch U12"]
[Site "Cali"]
[Date "2011.07.07"]
[Round "8"]
[White "Perez Lombana, Kevin Esteban"]
[Black "Lescano Osorio, Oswaldo"]
[Result "1/2-1/2"]
[ECO "C41"]
[PlyCount "58"]
[EventDate "2011.07.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. Bc4 Nf6 4. Nc3 Be7 5. 0-0 0-0 6. h3 c6 7. d4 Nbd7 8. Be3 b5 9. Bd3 h6 10. Ne2 Nh7 11. Ng3 Bg5 12. Nxg5 Nxg5 13. f4 exf4 14. Rxf4 Nb6 15. Qh5 Nd7 16. e5 dxe5 17. dxe5 Nxe5 18. Rh4 Nef3+ 19. gxf3 Nxf3+ 20. Qxf3 Qxh4 21. Nf5 Bxf5 22. Qxf5 g6 23. Qf3 Rac8 24. Bf2 Qe7 25. Re1 Qd7 26. c4 a6 27. Rd1 Qc7 28. Qf6 Rcd8 29. Kg2 Qd6 1/2-1/2

[Event "Pan American-ch U12"]
[Site "Cali"]
[Date "2011.07.06"]
[Round "6"]
[White "Calderon Zuta, Nicolas"]
[Black "Lescano Osorio, Oswaldo"]
[Result "1-0"]
[ECO "C41"]
[PlyCount "35"]
[EventDate "2011.07.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. Bc4 Nf6 4. d3 h6 5. h3 Be7 6. 0-0 0-0 7. c3 c6 8. Re1 Nbd7 9. d4 exd4 10. cxd4 d5 11. exd5 cxd5 12. Bb5 a6 13. Bxd7 Qxd7 14. Qe2 Re8 15. Ne5 Qc7 16. Nc3 Bb4 17. Bd2 Bxc3 18. bxc3 1-0

[Event "Pan American-ch U12"]
[Site "Cali"]
[Date "2011.07.06"]
[Round "5"]
[White "Lescano Osorio, Oswaldo"]
[Black "Pajuelo Rojas, Joel"]
[Result "0-1"]
[ECO "E87"]
[BlackElo "1579"]
[PlyCount "70"]
[EventDate "2011.07.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. f3 0-0 6. Be3 e5 7. d5 a5 8. Qd2 b6 9. Be2 Na6 10. Bh6 Nc5 11. g4 Bd7 12. h4 Bxh6 13. Qxh6 Qe7 14. Nh3 Rfb8 15. Nf2 Na4 16. Nxa4 Bxa4 17. h5 Qf8 18. Qg5 Qe7 19. hxg6 fxg6 20. Kd2 Nxd5 21. Qxe7 Nxe7 22. b3 Bd7 23. Rh6 Kg7 24. Rah1 Rh8 25. R6h2 Nc6 26. Nh3 Nd4 27. Bd1 Raf8 28. Rf2 Ne6 29. Ng1 Ng5 30. Ke3 Rf7 31. Nh3 Ne6 32. Rfh2 Rhf8 33. Ng1 Ng5 34. Nh3 Nxh3 35. Rxh3 Bxg4 0-1

[Event "Pan American-ch U12"]
[Site "Cali"]
[Date "2011.07.04"]
[Round "3"]
[White "Lescano Osorio, Oswaldo"]
[Black "Naranjo, Irwin"]
[Result "0-1"]
[ECO "A27"]
[BlackElo "1611"]
[PlyCount "58"]
[EventDate "2011.07.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. Nf3 Bc5 4. g3 f5 5. Nxe5 Bxf2+ 6. Kxf2 Nxe5 7. d3 Nf6 8. Bg2 Neg4+ 9. Kg1 Qe7 10. Qd2 0-0 11. d4 Ne4 12. Nd5 Qd8 13. Qf4 d6 14. Bxe4 fxe4 15. Qg5 Qe8 16. Bf4 h6 17. Qe7 Qxe7 18. Nxe7+ Kh7 19. Nd5 Rf7 20. Kg2 c6 21. Nc3 g5 22. Bxd6 Nf2 23. Rhe1 Bh3+ 24. Kg1 Rd8 25. Be5 e3 26. Nd1 Ng4 27. Nc3 Rf2 28. Ne4 Rg2+ 29. Kh1 Rf8 0-1

[Event "Pan American-ch U12"]
[Site "Cali"]
[Date "2011.07.03"]
[Round "1"]
[White "Lescano Osorio, Oswaldo"]
[Black "Lopez, Bruno"]
[Result "0-1"]
[ECO "A17"]
[BlackElo "1709"]
[PlyCount "41"]
[EventDate "2011.07.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 Nf6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. d3 0-0 7. 0-0 a6 8. e4 d5 9. cxd5 exd5 10. e5 Nfd7 11. d4 f6 12. Re1 Re8 13. Bh3 f5 14. Bg2 Nc6 15. Bg5 Bxg5 16. Nxg5 h6 17. Nf3 Rc8 18. Qe2 Nf8 19. Rad1 Na5 20. a4 Re7 21. Nh4 0-1

[Event "Pan American-ch U12"]
[Site "Cali"]
[Date "2011.07.03"]
[Round "1"]
[White "Tello Chavez, Isaac Valentino"]
[Black "Lescano Osorio, Oswaldo"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "1715"]
[PlyCount "34"]
[EventDate "2011.07.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. Bf4 g6 4. e3 Bg7 5. h3 0-0 6. Be2 Bf5 7. Nbd2 Nc6 8. c3 Re8 9. 0-0 e5 10. Bh2 Qd7 11. Bb5 e4 12. Ne1 a6 13. Ba4 b5 14. Bb3 Be6 15. Nc2 Bxb3 16. Nxb3 h6 17. Qe2 Reb8 1/2-1/2

