[Event "PER-ch Seniors"]
[Site "Lima"]
[Date "2018.12.30"]
[Round "7"]
[White "Teran Vera, Victor Humberto"]
[Black "Lazo, Oscar"]
[Result "0-1"]
[ECO "C02"]
[PlyCount "120"]
[EventDate "2018.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 Nge7 7. 0-0 cxd4 8. cxd4 Nf5 9. Bxf5 exf5 10. Nc3 Be6 11. a4 Be7 12. Nb5 0-0 13. Be3 Qd8 14. Rc1 a6 15. Nc3 Qb6 16. Qe2 Rac8 17. Rfd1 Na5 18. h4 Nb3 19. Rb1 Rc6 20. g3 Rfc8 21. Kg2 Na5 22. Ng5 Nc4 23. Qh5 Nxe3+ 24. fxe3 h6 25. Rh1 Bf8 26. Nh3 Bb4 27. Nf4 Qd8 28. Nfe2 Bf8 29. Rhf1 g6 30. Qf3 Bb4 31. Rf2 h5 32. Rbf1 Qd7 33. Qf4 Kg7 34. Rd1 R6c7 35. Rdf1 Be7 36. Qf3 b5 37. axb5 axb5 38. Nf4 Rd8 39. Qe2 b4 40. Nd1 Qa4 41. Qd3 Bc8 42. Qd2 Ba6 43. Rg1 Rdc8 44. Kh3 Rc2 45. Qe1 Qb3 46. Rgg2 Rc1 47. Rd2 Ra1 48. e4 fxe4 49. Qe3 Qc4 50. e6 Rc6 51. Rgf2 f6 52. b3 Qb5 53. g4 hxg4+ 54. Kxg4 f5+ 55. Kh3 Rxd1 56. Rxd1 Rc3 57. Nd3 Rxd3 58. Rxd3 Qxd3 59. Qxd3 Bxd3 60. h5 e3 0-1

[Event "PER-ch Seniors"]
[Site "Lima"]
[Date "2018.12.29"]
[Round "5"]
[White "Lazo, Oscar"]
[Black "Campossano Camo, Rodrigo"]
[Result "0-1"]
[ECO "E80"]
[BlackElo "2062"]
[PlyCount "68"]
[EventDate "2018.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d6 2. c4 Nf6 3. Nc3 g6 4. e4 Bg7 5. f3 0-0 6. Be3 c6 7. Bd3 a6 8. a4 a5 9. Nge2 Na6 10. Rc1 Nb4 11. Bb1 Nd7 12. h4 e5 13. d5 Nc5 14. g4 f5 15. gxf5 gxf5 16. Bg5 Qe8 17. Rg1 f4 18. Bh6 Rf7 19. dxc6 Qe7 20. Bg5 Qe6 21. Nb5 bxc6 22. Qxd6 Nb3 23. Qxe6 Bxe6 24. Nd6 Nxc1 25. Nxf7 Nxe2 26. Nh6+ Bxh6 27. Kxe2 Bxc4+ 28. Kf2 Bf8 29. Be7+ Kf7 30. Bxf8 Rxf8 31. Rc1 Bd3 32. Kg2 Rg8+ 33. Kh2 Bxb1 34. Rxb1 Nc2 0-1

[Event "PER-ch Seniors"]
[Site "Lima"]
[Date "2018.12.29"]
[Round "6"]
[White "Lazo, Oscar"]
[Black "Paiva Benites, Felix Paul"]
[Result "1/2-1/2"]
[ECO "B20"]
[BlackElo "1627"]
[PlyCount "101"]
[EventDate "2018.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. d3 Nc6 3. c4 g6 4. Be3 Bg7 5. Nc3 Qa5 6. g3 Bxc3+ 7. bxc3 Qxc3+ 8. Bd2 Qg7 9. Rc1 e5 10. Bg2 Nge7 11. Ne2 0-0 12. f4 d6 13. 0-0 Bg4 14. h3 Bxe2 15. Qxe2 Nd4 16. Qd1 Nec6 17. Rb1 Rab8 18. Kh2 b6 19. f5 f6 20. a4 Qd7 21. g4 Rb7 22. Bh6 Rf7 23. Kg3 Nd8 24. h4 a6 25. Rf2 N8c6 26. Qd2 Nb4 27. Rbf1 gxf5 28. gxf5 Qxa4 29. Kh2 Qc2 30. Qxc2 Nbxc2 31. Rg1 Rg7 32. Bxg7 Rxg7 33. Bf3 Rxg1 34. Kxg1 Ne3 35. Bh5 Ndc2 36. Rf3 Kf8 37. Rg3 a5 38. Kf2 a4 39. Rg1 a3 40. Ke2 a2 41. Kd2 a1Q 42. Rxa1 Nxa1 43. Kxe3 Nc2+ 44. Kd2 Nd4 45. Bd1 Kg7 46. Ke3 Kh6 47. Kf2 Nc6 48. Kg3 Nb4 49. Be2 Nc2 50. Kf2 Nd4 51. Bd1 1/2-1/2

[Event "PER-ch Seniors"]
[Site "Lima"]
[Date "2018.12.28"]
[Round "4"]
[White "Angulo, Alberto"]
[Black "Lazo, Oscar"]
[Result "1-0"]
[ECO "C11"]
[WhiteElo "1997"]
[PlyCount "73"]
[EventDate "2018.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. Nf3 c5 6. Be3 Nc6 7. Bb5 a6 8. Bxc6 bxc6 9. 0-0 cxd4 10. Qxd4 g6 11. Na4 Bg7 12. c4 0-0 13. Rfe1 Qc7 14. cxd5 exd5 15. Bf4 Qa5 16. b3 Re8 17. Rac1 Bb7 18. Re2 Bf8 19. Bd2 Qb5 20. Rce1 Nc5 21. Nxc5 Qxc5 22. Qh4 Bc8 23. Ng5 h5 24. Nxf7 Qe7 25. Ng5 Be6 26. Qg3 Bg7 27. Nf3 Kh7 28. Bg5 Qf7 29. Bf6 Qd7 30. Ng5+ Kg8 31. Nxe6 Rxe6 32. Qxg6 Qf7 33. Qg5 Rae8 34. f4 d4 35. f5 d3 36. fxe6 Qa7+ 37. Rf2 1-0

[Event "PER-ch Seniors"]
[Site "Lima"]
[Date "2018.12.27"]
[Round "3"]
[White "Lazo, Oscar"]
[Black "Garcia Toledo, Pedro"]
[Result "0-1"]
[ECO "C77"]
[BlackElo "2021"]
[PlyCount "102"]
[EventDate "2018.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. h3 Bd7 7. c4 Be7 8. Nc3 0-0 9. Be3 Re8 10. Qd2 h6 11. Nd5 Bf8 12. 0-0-0 Nxd5 13. cxd5 Nd4 14. Bxd7 Nxf3 15. gxf3 Qxd7 16. Rdg1 Kh7 17. Rg4 f5 18. exf5 Qxf5 19. Rhg1 c6 20. Rb4 b5 21. dxc6 d5 22. Rh4 Rac8 23. c7 Rxc7+ 24. Kb1 d4 25. Bg5 Qxf3 26. Bxh6 gxh6 27. Qg5 Qf7 28. Qg2 Re6 29. Rg4 Rcc6 30. Re1 Qf5 31. Qe4 Qxe4 32. Rgxe4 Rf6 33. f4 Rxf4 34. Rxe5 Rf2 35. R5e2 Rxe2 36. Rxe2 Bg7 37. Rg2 Bf6 38. Rg4 Bg5 39. a3 Be3 40. Ka2 a5 41. Kb3 Rc5 42. a4 b4 43. h4 Rh5 44. Kc4 Bf2 45. Rg2 Bxh4 46. Kxd4 Bf6+ 47. Kc4 Rg5 48. Rf2 Kg6 49. d4 Rg4 50. Kb5 Bxd4 51. Rd2 Rg5+ 0-1

[Event "PER-ch Seniors"]
[Site "Lima"]
[Date "2018.12.27"]
[Round "2"]
[White "Lazo, Oscar"]
[Black "Pizzardo Olivares, Fernando Salvador"]
[Result "1-0"]
[ECO "C63"]
[BlackElo "1822"]
[PlyCount "81"]
[EventDate "2018.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d4 fxe4 5. Nxe5 Nxe5 6. dxe5 c6 7. Bc4 Qa5+ 8. Nc3 Qxe5 9. Bxg8 Rxg8 10. 0-0 d5 11. Be3 Bd6 12. g3 Bf5 13. f3 0-0-0 14. f4 Qe7 15. Qd4 Bb8 16. b4 Qf6 17. Qxf6 gxf6 18. Bd4 Rd6 19. Kf2 Bh3 20. Rfd1 h5 21. a4 f5 22. b5 h4 23. Rg1 Rdg6 24. a5 a6 25. bxc6 hxg3+ 26. Rxg3 Rxg3 27. cxb7+ Kxb7 28. hxg3 Kc6 29. Rh1 Bg4 30. Rh6+ Bd6 31. Be5 Rd8 32. Ke3 Kc5 33. Bxd6+ Rxd6 34. Rxd6 Kxd6 35. Kd4 Kc6 36. Nxd5 Kb5 37. c4+ Kxa5 38. Ne3 Bh3 39. c5 Kb5 40. Kd5 a5 41. c6 1-0

[Event "PER-ch Seniors"]
[Site "Lima"]
[Date "2018.12.26"]
[Round "1"]
[White "Vanini, Bruno"]
[Black "Lazo, Oscar"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "1960"]
[PlyCount "88"]
[EventDate "2018.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. c4 Bb4 6. Ngf3 0-0 7. a3 Be7 8. Bd3 c5 9. Qc2 h6 10. cxd5 exd5 11. 0-0 Nc6 12. Re1 c4 13. Bf5 Nb6 14. Nf1 Be6 15. Bxe6 fxe6 16. Bxh6 Rxf3 17. gxf3 Nxd4 18. Qg6 Qf8 19. Nd2 Qf7 20. Qg4 Nc2 21. Kh1 Nxa1 22. Rxa1 Kh7 23. Be3 Qf5 24. Qg3 Nd7 25. f4 g6 26. Rg1 Kg7 27. Nf3 Kf7 28. Nd4 Qh5 29. f5 Nf8 30. fxe6+ Nxe6 31. Nxe6 Kxe6 32. Qxg6+ Qxg6 33. Rxg6+ Kxe5 34. f4+ Kf5 35. Rg7 Re8 36. Bxa7 Ke4 37. Rg6 Bh4 38. Rg4 Bf6 39. Rg6 Bxb2 40. Bc5 c3 41. Rg3 d4 42. f5 c2 43. Rg1 c1Q 44. Rxc1 Bxc1 0-1

[Event "PER-ch Seniors 50"]
[Site "Lima"]
[Date "2017.11.03"]
[Round "4"]
[White "Vidalon, Raul"]
[Black "Lazo, Oscar"]
[Result "0-1"]
[ECO "C43"]
[PlyCount "59"]
[EventDate "2017.11.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. Qe2 d6 7. Be3 Nc6 8. Nc3 Be6 9. f3 Qe7 10. 0-0-0 0-0-0 11. Bxb6 axb6 12. Kb1 h5 13. Nd4 Nxd4 14. Rxd4 c6 15. Qe3 b5 16. Be2 Nd7 17. Rhd1 Nb6 18. b3 Rd7 19. R4d2 Kc7 20. f4 b4 21. Na4 Nxa4 22. bxa4 Ra8 23. e5 d5 24. Qb3 b5 25. axb5 Ra3 26. Qb2 g6 27. Rd3 Ra5 28. c4 Bf5 29. bxc6 Rd8 30. Kc1 0-1

[Event "PER-ch Seniors 50"]
[Site "Lima"]
[Date "2017.11.02"]
[Round "3"]
[White "Lazo, Oscar"]
[Black "Martinez, Sedamanos Enrique"]
[Result "1-0"]
[ECO "A24"]
[PlyCount "47"]
[EventDate "2017.11.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 g6 2. c4 Bg7 3. Nc3 d6 4. g3 c6 5. Bg2 Nd7 6. Nge2 e5 7. 0-0 Ngf6 8. d3 0-0 9. h3 Re8 10. Bg5 Nf8 11. Qd2 Ne6 12. Be3 Nc7 13. d4 Nd7 14. f4 Nb6 15. b3 Qe7 16. fxe5 dxe5 17. d5 cxd5 18. cxd5 Qb4 19. Bh6 Bh8 20. g4 f5 21. gxf5 gxf5 22. Qg5+ Kf7 23. Rxf5+ Bxf5 24. Qxf5+ 1-0

[Event "PER-ch Seniors 50"]
[Site "Lima"]
[Date "2017.11.01"]
[Round "2"]
[White "Balvin, Jorge"]
[Black "Lazo, Oscar"]
[Result "1-0"]
[ECO "A93"]
[WhiteElo "1704"]
[PlyCount "64"]
[EventDate "2017.11.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 c6 5. Bg2 Be7 6. 0-0 0-0 7. Qc2 Nbd7 8. b3 Ne4 9. Nbd2 f5 10. Bb2 Ndf6 11. e3 Bd7 12. Ne5 Be8 13. f3 Nd6 14. Rfe1 Rc8 15. c5 Nf7 16. Nd3 Qc7 17. b4 Ng5 18. a4 a6 19. Qb3 Kh8 20. Nb1 Nf7 21. Ba3 Nd7 22. Nf4 Nd8 23. e4 fxe4 24. fxe4 Bf6 25. exd5 exd5 26. b5 axb5 27. axb5 g5 28. b6 Qb8 29. Nd3 Nf7 30. Bh3 Rd8 31. Nf2 Qc8 32. Ra2 Nxc5 1-0

[Event "PER-ch Seniors 50"]
[Site "Lima"]
[Date "2017.11.01"]
[Round "1"]
[White "Lazo, Oscar"]
[Black "Beyer Lecaros, Alfredo Jose"]
[Result "1/2-1/2"]
[ECO "C20"]
[BlackElo "1826"]
[PlyCount "36"]
[EventDate "2017.11.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 Nc6 2. c4 e5 3. Nc3 Bc5 4. Nf3 d6 5. h3 f5 6. d3 Nf6 7. Bg5 h6 8. Bxf6 Qxf6 9. Nd5 Qf7 10. Be2 0-0 11. 0-0 a5 12. exf5 Bxf5 13. Ne3 Be6 14. Nh2 Qg6 15. Kh1 Nd4 16. Bg4 Rae8 17. Bh5 Qg5 18. Bxe8 Rxe8 1/2-1/2

[Event "Lima Engineers 3rd"]
[Site "Lima"]
[Date "2012.07.21"]
[Round "6.8"]
[White "Lazo, Oscar"]
[Black "Quispe, Cesar"]
[Result "0-1"]
[ECO "C41"]
[PlyCount "78"]
[EventDate "2012.07.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 d6 3. Nf3 e5 4. h3 Be7 5. Bc4 0-0 6. d3 Be6 7. Bg5 Bxc4 8. dxc4 Nbd7 9. Qe2 c6 10. 0-0 h6 11. Be3 Qc7 12. Rad1 Rfd8 13. Nh2 Nf8 14. Ng4 Kh7 15. f4 exf4 16. Rxf4 Ng6 17. Rf5 Nxg4 18. Qxg4 Ne5 19. Qe2 g6 20. Rf2 Bh4 21. Rff1 Qe7 22. Kh2 Qe6 23. b3 a6 24. Qd2 h5 25. Bg5 Bxg5 26. Qxg5 Kg7 27. Ne2 Nd7 28. Ng3 Kh7 29. Qh4 Rf8 30. Nxh5 gxh5 31. Qxh5+ Kg7 32. Rf5 Ne5 33. Rdf1 Ng6 34. Qd1 c5 35. Qa1+ f6 36. Qd1 b5 37. R1f3 Rad8 38. Rg3 Rh8 39. Qg4 Rh6 0-1

[Event "Lima Engineers 3rd"]
[Site "Lima"]
[Date "2012.07.20"]
[Round "5.5"]
[White "Villanueva, Pablo"]
[Black "Lazo, Oscar"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "1929"]
[PlyCount "47"]
[EventDate "2012.07.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 c6 5. Bg2 Ne4 6. Qc2 Bb4+ 7. Bd2 Nxd2 8. Nbxd2 Nd7 9. 0-0 f5 10. cxd5 exd5 11. Qxf5 Nf6 12. Qe5+ Kf7 13. Ng5+ Kg6 14. Ndf3 Bd6 15. Nh4+ Kh5 16. Bf3+ Ng4 17. Qxg7 Rg8 18. Nf7 Rxg7 19. Nxd8 Kg5 20. Rac1 Kf6 21. Nxc6 bxc6 22. Rxc6 Ke7 23. Rxc8 Rxc8 24. Nf5+ 1-0

[Event "Lima Engineers 3rd"]
[Site "Lima"]
[Date "2012.07.19"]
[Round "4.8"]
[White "Lazo, Oscar"]
[Black "Saravia, German"]
[Result "1-0"]
[ECO "C57"]
[BlackElo "1417"]
[PlyCount "57"]
[EventDate "2012.07.16"]
[EventType "swiss"]
[EventRounds "7"]
[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. exd5 Bg4 9. Be2 Bxe2+ 10. Qxe2 Nd4 11. Qxf2 0-0-0 12. d3 Rf8 13. Ke1 Ne4 14. Qxf8+ Qxf8 15. dxe4 Nxc2+ 16. Kd1 Nxa1 17. Nd2 Qxh8 18. b3 Qe8 19. Bb2 Qh5+ 20. Kc1 Nxb3+ 21. axb3 Qg5 22. g3 Kd7 23. Rf1 Kd6 24. Rf5 Qh6 25. Bxe5+ Ke7 26. Bxc7 Qxh2 27. d6+ Kd7 28. Rf7+ Kc8 29. Rxg7 1-0

[Event "Lima Engineers 3rd"]
[Site "Lima"]
[Date "2012.07.17"]
[Round "2.15"]
[White "Sirio, Abigail"]
[Black "Lazo, Oscar"]
[Result "0-1"]
[ECO "C47"]
[PlyCount "90"]
[EventDate "2012.07.16"]
[EventType "swiss"]
[EventRounds "7"]
[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. Nc3 Nf6 4. a3 Bc5 5. Bb5 0-0 6. 0-0 Re8 7. Bxc6 dxc6 8. b4 Bb6 9. Bb2 Ng4 10. h3 Nh6 11. Na4 Bd4 12. c3 Bb6 13. Nxb6 axb6 14. d4 exd4 15. cxd4 Rxe4 16. Qc2 Bf5 17. Qc3 Qd5 18. Rfe1 Rae8 19. Ng5 R4e7 20. Rad1 f6 21. Nf3 Be4 22. Re3 Nf5 23. Ree1 Bxf3 24. Rxe7 Rxe7 25. Qxf3 Qxf3 26. gxf3 Rd7 27. Kg2 c5 28. bxc5 bxc5 29. f4 cxd4 30. Kf3 c5 31. Ke4 g6 32. a4 b6 33. Rd2 Kf7 34. f3 Ke6 35. Kd3 Ra7 36. Kc4 Nd6+ 37. Kb3 Kd5 38. Rd1 c4+ 39. Kb4 d3 40. Bxf6 b5 41. axb5 Rb7 42. Kc3 Nxb5+ 43. Kb4 Nd4+ 44. Kc3 Nxf3 45. Bg5 Rb3# 0-1

[Event "Lima Engineers 3rd"]
[Site "Lima"]
[Date "2012.07.16"]
[Round "1.2"]
[White "Lazo, Oscar"]
[Black "Principe, Gerson"]
[Result "0-1"]
[ECO "B25"]
[BlackElo "2165"]
[PlyCount "98"]
[EventDate "2012.07.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nge2 e5 7. 0-0 Nge7 8. Be3 0-0 9. Qd2 Be6 10. h3 Qd7 11. Kh2 f5 12. f4 Nd4 13. Rf2 Rae8 14. Raf1 b6 15. Ng1 d5 16. exd5 Nxd5 17. Nxd5 Bxd5 18. c3 Nc6 19. Rd1 Bxg2 20. Rxg2 Qd5 21. a3 Rf7 22. b4 exf4 23. Bxf4 Rfe7 24. Qa2 Qxa2 25. Rxa2 Bxc3 26. bxc5 bxc5 27. Bd6 Rd7 28. Bxc5 Red8 29. Ne2 Rxd3 30. Nxc3 Rxd1 31. Nxd1 Rxd1 32. Rb2 Rd7 33. Kg2 Kf7 34. Kf2 Ne5 35. Ke2 Nd3 36. Rb5 a6 37. Ra5 Nc1+ 38. Ke3 Nb3 39. Rxa6 Nxc5 40. Ra5 Ne6 41. g4 f4+ 42. Ke4 Kf6 43. h4 Rd4+ 44. Kf3 h6 45. Ra6 Rd3+ 46. Kf2 Rh3 47. g5+ hxg5 48. hxg5+ Kf5 49. a4 Nxg5 0-1

[Event "Lima Ingenieros CC op 1st"]
[Site "Lima"]
[Date "2012.??.??"]
[Round "4"]
[White "Balvin, Jorge"]
[Black "Lazo, Oscar"]
[Result "0-1"]
[ECO "C38"]
[WhiteElo "1753"]
[PlyCount "52"]
[EventDate "2012.04.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 5. d4 Nh6 6. 0-0 d5 7. Bxd5 0-0 8. c3 c6 9. Bb3 Bg4 10. Qe1 Qe7 11. h4 Bxf3 12. Rxf3 c5 13. hxg5 Qxg5 14. Bxf4 Qg6 15. Rg3 Ng4 16. e5 h5 17. Na3 Nc6 18. Bc2 f5 19. Rd1 cxd4 20. cxd4 Rad8 21. Nb5 Bh6 22. Qd2 Bg7 23. Qe2 Kh8 24. Rh3 a6 25. d5 Ncxe5 26. Nd4 Rxd5 0-1

[Event "Lima Ingenieros CC op 1st"]
[Site "Lima"]
[Date "2012.??.??"]
[Round "6"]
[White "Chavez Mendoza, Sergio"]
[Black "Lazo, Oscar"]
[Result "1-0"]
[ECO "D04"]
[PlyCount "59"]
[EventDate "2012.04.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 g6 3. e3 Bg7 4. Bd3 Nf6 5. b3 0-0 6. Bb2 Bg4 7. Nbd2 Nbd7 8. h3 Be6 9. g4 c5 10. Qe2 c4 11. bxc4 dxc4 12. Nxc4 Rc8 13. Nfe5 Qc7 14. e4 Bxc4 15. Nxc4 Nb6 16. Nxb6 Qxb6 17. c3 Nd7 18. f4 e6 19. h4 f5 20. gxf5 exf5 21. e5 Rfe8 22. h5 Qc6 23. Rg1 Nf8 24. Bb5 Qd5 25. Bxe8 Rxe8 26. Bc1 Kf7 27. Rb1 a6 28. hxg6+ hxg6 29. Qg2 Qxg2 30. Rxg2 1-0

[Event "Lima Ingenieros CC op 1st"]
[Site "Lima"]
[Date "2012.??.??"]
[Round "3"]
[White "Lazo, Oscar"]
[Black "Pasapera, Jorge"]
[Result "1-0"]
[ECO "B26"]
[BlackElo "1678"]
[PlyCount "55"]
[EventDate "2012.04.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 d6 5. d3 e5 6. Be3 Be6 7. Nge2 Ne7 8. Qd2 Nbc6 9. 0-0 0-0 10. f4 Nd4 11. fxe5 dxe5 12. h3 Qd7 13. Kh2 f5 14. Rf2 Rf7 15. Raf1 Raf8 16. Ng1 b6 17. Nf3 fxe4 18. dxe4 Bxh3 19. Ng5 Rxf2 20. Rxf2 Rxf2 21. Qxf2 Be6 22. Bh3 Bxh3 23. Qf7+ Kh8 24. Bxd4 exd4 25. Ne2 Bg4 26. Nf4 Nc6 27. Qc4 h6 28. Nxg6# 1-0

[Event "Lima Ingenieros CC op 1st"]
[Site "Lima"]
[Date "2012.??.??"]
[Round "2"]
[White "Lazo, Oscar"]
[Black "Villavisencio, Luis"]
[Result "1-0"]
[ECO "C77"]
[PlyCount "45"]
[EventDate "2012.04.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Nc3 b5 6. Bb3 Bc5 7. 0-0 0-0 8. Nxe5 Nxe5 9. d4 Bxd4 10. Qxd4 Nc6 11. Qd3 Na5 12. e5 Nxb3 13. axb3 Ng4 14. Qf3 d5 15. exd6 Rb8 16. dxc7 Qxc7 17. Bf4 Ne5 18. Qd5 Re8 19. Rfe1 Bb7 20. Rxe5 Qc8 21. Rxe8+ Qxe8 22. Qe5 Qxe5 23. Bxe5 1-0

[Event "Lima Ingenieros CC op 1st"]
[Site "Lima"]
[Date "2012.??.??"]
[Round "5"]
[White "Lazo, Oscar"]
[Black "Zubiaga, Hugo"]
[Result "0-1"]
[ECO "B25"]
[PlyCount "102"]
[EventDate "2012.04.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Nf6 5. d3 g6 6. Nge2 Bg7 7. 0-0 0-0 8. h3 Be6 9. Be3 Qc8 10. Kh2 Rb8 11. Qd2 Nd4 12. f4 Nxe2 13. Qxe2 Rd8 14. Bd2 a6 15. a4 Bd7 16. e5 Ne8 17. Nd5 Bf8 18. Nb6 Qc7 19. Nd5 Qc8 20. Ba5 e6 21. Nb6 Qc7 22. Nxd7 Qxa5 23. Nxb8 Rxb8 24. exd6 Bxd6 25. c3 Qc7 26. Kh1 Ng7 27. Bf3 Nf5 28. Qf2 a5 29. Be4 Ne7 30. d4 b5 31. axb5 Rxb5 32. dxc5 Rxc5 33. Rad1 a4 34. Qd4 Nc8 35. Qxa4 Rc4 36. Qe8+ Kg7 37. Bg2 Ne7 38. Qb5 Nf5 39. Rxd6 Nxg3+ 40. Kg1 Nxf1 41. Bxf1 Rxf4 42. Qe5+ Rf6 43. c4 Qa7+ 44. c5 Qa1 45. Qe2 Qa5 46. Qe3 Qa1 47. Qd3 Qxb2 48. c6 Qf2+ 49. Kh1 Qxf1+ 50. Qxf1 Rxf1+ 51. Kg2 Rc1 0-1

[Event "Lima Ingenieros CC op 1st"]
[Site "Lima"]
[Date "2012.??.??"]
[Round "1"]
[White "Murga, Caleb"]
[Black "Lazo, Oscar"]
[Result "1-0"]
[ECO "B16"]
[WhiteElo "1762"]
[PlyCount "47"]
[EventDate "2012.04.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. d4 Rg8 7. Bf4 Qb6 8. b3 Bf5 9. c3 Nd7 10. Nd2 e5 11. Nc4 Qc7 12. Bg3 0-0-0 13. a4 Rxg3 14. hxg3 exd4 15. Bd3 Re8+ 16. Kf1 Bxd3+ 17. Qxd3 dxc3 18. Rxh7 Nc5 19. Qxc3 Ne4 20. Qc2 Bc5 21. Re1 Nxg3+ 22. fxg3 Rxe1+ 23. Kxe1 Qxg3+ 24. Kd1 1-0

[Event "Lima op"]
[Site "Lima"]
[Date "1993.??.??"]
[Round "3"]
[White "Iriarte, W."]
[Black "Lazo, Oscar"]
[Result "1-0"]
[ECO "B13"]
[PlyCount "59"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "PER"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nf6 5. h3 g6 6. Nf3 Bg7 7. 0-0 0-0 8. Re1 Nc6 9. c3 Qc7 10. Bg5 Re8 11. Qd2 Nd7 12. Na3 f6 13. Bh6 a6 14. c4 dxc4 15. Bxc4+ Kh8 16. Rac1 Qd8 17. Nh4 Rf8 18. Qe3 e5 19. d5 Nd4 20. Nc2 Nxc2 21. Rxc2 b5 22. Bb3 Qb6 23. Bxg7+ Kxg7 24. Qg3 Nc5 25. Qe3 Nd7 26. Qc3 a5 27. a4 b4 28. Qg3 Ba6 29. Rec1 Ra7 30. Rc6 1-0

[Event "Lima op"]
[Site "Lima"]
[Date "1993.??.??"]
[Round "5"]
[White "Lazo, Oscar"]
[Black "Arenas, L."]
[Result "1/2-1/2"]
[ECO "B01"]
[PlyCount "53"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "PER"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb6 5. Nc3 g6 6. Nf3 Bg7 7. Be3 0-0 8. a4 a5 9. Be2 Na6 10. 0-0 Nb4 11. Rc1 c6 12. Qd2 Bg4 13. b3 Bxf3 14. Bxf3 e5 15. Rfd1 exd4 16. Bxd4 Bxd4 17. Qxd4 Qxd4 18. Rxd4 Rad8 19. Rcd1 Rxd4 20. Rxd4 Re8 21. Ne4 Kg7 22. g3 Re7 23. Nc5 f5 24. h4 Nc2 25. Rd2 Nb4 26. Re2 Rf7 27. Rd2 1/2-1/2

