[Event "South America-ch 1st"]
[Site "Lima"]
[Date "2023.09.22"]
[Round "9.27"]
[White "Cardenas Huachaca, Alessandro Jair"]
[Black "Santiago Lastra, Nefi"]
[Result "0-1"]
[ECO "D70"]
[WhiteElo "1286"]
[BlackElo "1917"]
[PlyCount "98"]
[EventDate "2023.09.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 d5 2. cxd5 Nf6 3. d4 Nxd5 4. e4 Nb6 5. Nc3 g6 6. Be3 Bg7 7. Be2 0-0 8. Nf3 Be6 9. d5 Bg4 10. 0-0 c6 11. Qb3 cxd5 12. Bxb6 Qxb6 13. Qxb6 axb6 14. Nxd5 Nc6 15. a3 Bxb2 16. Rab1 Bxf3 17. Bxf3 Bd4 18. Nxb6 Rxa3 19. Nd7 Rd8 20. Rxb7 Ra7 21. Rfb1 Rxd7 22. Rxa7 Bxa7 23. Rc1 Ne5 24. Be2 Kg7 25. g3 h5 26. h4 Ng4 27. Bxg4 hxg4 28. Rc2 Rd1+ 29. Kg2 Re1 30. f3 Rg1+ 31. Kh2 gxf3 32. Ra2 f2 33. Rxf2 Bxf2 34. e5 Rxg3 35. Kh1 Bd4 36. Kh2 Bxe5 37. Kh1 f5 38. Kh2 f4 39. Kh1 f3 40. Kh2 f2 41. h5 g5 42. h6+ Kxh6 43. Kh1 Bd6 44. Kh2 g4 45. Kh1 e5 46. Kh2 e4 47. Kh1 e3 48. Kh2 e2 49. Kh1 f1R+ 0-1

[Event "South America-ch 1st"]
[Site "Lima"]
[Date "2023.09.21"]
[Round "8"]
[White "Santiago Lastra, Nefi"]
[Black "De la Cruz De la Roca, Alan Rafael"]
[Result "1/2-1/2"]
[ECO "A36"]
[WhiteElo "1917"]
[BlackElo "1454"]
[PlyCount "66"]
[EventDate "2023.09.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. c4 Nc6 3. g3 g6 4. Bg2 Bg7 5. Ne2 d6 6. Nbc3 Nf6 7. d3 0-0 8. 0-0 a6 9. Nd5 Rb8 10. Nxf6+ Bxf6 11. Bh6 Bg7 12. Qd2 b5 13. Bxg7 Kxg7 14. b3 e5 15. f4 f6 16. Rf2 Qe7 17. Raf1 Be6 18. f5 Bd7 19. fxg6 hxg6 20. cxb5 axb5 21. Nc3 Be6 22. h4 Nd4 23. Bh1 b4 24. Nd1 f5 25. Ne3 fxe4 26. Bxe4 Rxf2 27. Qxf2 Rd8 28. Nd5 Bxd5 29. Bxd5 Rf8 30. Qe3 Rxf1+ 31. Kxf1 Qf6+ 32. Kg2 Qf5 33. Qd2 Qg4 1/2-1/2

[Event "South America-ch 1st"]
[Site "Lima"]
[Date "2023.09.20"]
[Round "7"]
[White "Marcelo Poma, Jaden Eduardo"]
[Black "Santiago Lastra, Nefi"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1161"]
[BlackElo "1917"]
[PlyCount "39"]
[EventDate "2023.09.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nc6 5. c3 Bd6 6. Nf3 Bg4 7. 0-0 Nge7 8. h3 Bh5 9. Be2 f6 10. Nbd2 g5 11. g4 Bg6 12. Qc2 Qd7 13. Nb3 Bd3 14. Qxd3 h5 15. Nxg5 fxg5 16. Bxg5 0-0-0 17. Nc5 Bxc5 18. dxc5 hxg4 19. h4 Ne5 20. Qg3 0-1

[Event "South America-ch 1st"]
[Site "Lima"]
[Date "2023.09.19"]
[Round "6"]
[White "Santiago Lastra, Nefi"]
[Black "Zapata Romero, Italo German"]
[Result "0-1"]
[ECO "A36"]
[WhiteElo "1917"]
[BlackElo "1554"]
[PlyCount "135"]
[EventDate "2023.09.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. g3 c5 5. Bg2 Bg7 6. Nge2 Nc6 7. h3 a6 8. 0-0 0-0 9. d3 e6 10. Be3 Nd7 11. Qd2 Nd4 12. Bh6 Rb8 13. Bxg7 Kxg7 14. Nxd4 cxd4 15. Ne2 e5 16. f4 f6 17. a4 Nc5 18. Ra3 Bd7 19. a5 b5 20. b4 Nb7 21. cxb5 Bxb5 22. h4 Qe7 23. g4 Bd7 24. f5 h6 25. Bf3 g5 26. Kf2 Rh8 27. Ng3 Be8 28. Rh1 Bf7 29. Bd1 Nd8 30. hxg5 hxg5 31. Rxh8 Kxh8 32. Bb3 Nc6 33. Bd5 Bxd5 34. exd5 Nxb4 35. Rb3 Qb7 36. Nh5 Nxd3+ 37. Rxd3 Qb1 38. Qd1 Rb2+ 39. Kg3 Qa2 40. Qh1 Rb1 41. Qh2 Rb2 42. Qh1 Rb1 43. Qh2 Rb2 44. Qh3 Qb1 45. Nxf6+ Kg7 46. Ne8+ Kg8 47. Nxd6 Kg7 48. Ne8+ Kg8 49. Nf6+ Kg7 50. Qh7+ Kxf6 51. Qg6+ Ke7 52. Qxg5+ Kd7 53. Qg7+ Kc8 54. Qf8+ Kb7 55. Kh4 Qxd3 56. Kg5 Qd2+ 57. Kf6 Qxa5 58. g5 Qxd5 59. g6 Rg2 60. Qf7+ Kc6 61. Ke7 d3 62. f6 d2 63. Qxd5+ Kxd5 64. f7 d1Q 65. f8Q Qg4 66. Qa8+ Kd4 67. Qa7+ Ke4 68. Qb7+ 0-1

[Event "South America-ch 1st"]
[Site "Lima"]
[Date "2023.09.18"]
[Round "5"]
[White "Levano Loayza, Adriano Jaffet"]
[Black "Santiago Lastra, Nefi"]
[Result "1/2-1/2"]
[ECO "E60"]
[WhiteElo "1424"]
[BlackElo "1917"]
[PlyCount "143"]
[EventDate "2023.09.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nf3 0-0 5. 0-0 c6 6. d4 d6 7. b3 Bg4 8. Bb2 Qc8 9. Re1 Ne4 10. Nfd2 Nc5 11. Qc2 Nca6 12. a3 Bh3 13. Bh1 Nd7 14. Nf3 h6 15. Nbd2 Rd8 16. Rac1 Nc7 17. d5 c5 18. Bxg7 Kxg7 19. Qc3+ f6 20. Ne4 Nf8 21. b4 b6 22. Rcd1 Nh7 23. Rd3 Ne8 24. Red1 Kf7 25. Re3 Ng7 26. Qc1 Nf5 27. Red3 Ng5 28. Qf4 Nxe4 29. Qxe4 Ng7 30. Re3 Re8 31. Nh4 Bf5 32. Nxf5 Qxf5 33. Qh4 Qc2 34. Rf1 Nf5 35. Be4 Nxh4 36. Bxc2 Nf5 37. Bxf5 gxf5 38. bxc5 dxc5 39. Kg2 Rg8 40. Kf3 Rg4 41. Rc1 Rd4 42. Rd3 Re4 43. Re3 Rd4 44. Rd3 e5 45. dxe6+ Kxe6 46. Rxd4 cxd4 47. c5 Rc8 48. c6 Kd6 49. Kf4 Rxc6 50. Rd1 Rc4 51. Kxf5 Kc5 52. Kxf6 Rc2 53. Re1 d3 54. exd3 Rxf2+ 55. Ke5 Rxh2 56. d4+ Kc6 57. Ke6 Rd2 58. Rc1+ Kb5 59. d5 Re2+ 60. Kd7 Re3 61. Ra1 Rxg3 62. d6 Rg7+ 63. Kc8 Rg3 64. d7 Rc3+ 65. Kb7 Rd3 66. Kc7 Rc3+ 67. Kb7 Rd3 68. Kc7 Rc3+ 69. Kb7 Rd3 70. Kc7 Rc3+ 71. Kb7 Rd3 72. Kc7 1/2-1/2

[Event "South America-ch 1st"]
[Site "Lima"]
[Date "2023.09.17"]
[Round "4"]
[White "Santiago Lastra, Nefi"]
[Black "Vilca Contreras, Dante Ivan"]
[Result "1-0"]
[ECO "A53"]
[WhiteElo "1917"]
[BlackElo "1489"]
[PlyCount "71"]
[EventDate "2023.09.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. c4 c6 3. Nc3 Nf6 4. d4 d6 5. dxe5 dxe5 6. Qxd8+ Kxd8 7. Bg5 Be7 8. 0-0-0+ Kc7 9. f4 h6 10. Bh4 exf4 11. e5 Ng8 12. Bf2 Be6 13. Nge2 Bxc4 14. Nxf4 Bxf1 15. Rhxf1 Bg5 16. Bc5 b6 17. Bd6+ Kc8 18. Kc2 Na6 19. e6 fxe6 20. Ng6 Rh7 21. Rf8+ Kb7 22. Rf7+ Kc8 23. Be5 Nb4+ 24. Kb3 Nd5 25. Nxd5 cxd5 26. Nf8 Rh8 27. Bxg7 Bf6 28. Rc1+ Kb8 29. Nd7+ Kb7 30. Nxf6+ Ka6 31. Bxh8 Nxf6 32. Bxf6 Re8 33. a4 e5 34. Rcc7 b5 35. Rc6+ Ka5 36. Rxa7# 1-0

[Event "South America-ch 1st"]
[Site "Lima"]
[Date "2023.09.16"]
[Round "3"]
[White "Principe, Gerson"]
[Black "Santiago Lastra, Nefi"]
[Result "1-0"]
[ECO "A47"]
[WhiteElo "2213"]
[BlackElo "1917"]
[PlyCount "73"]
[EventDate "2023.09.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. e3 b6 4. Be2 g6 5. a4 Bg7 6. a5 0-0 7. 0-0 d6 8. Nbd2 Ba6 9. c4 Nc6 10. Nb3 Ne4 11. d5 Nb4 12. Ne1 e5 13. f3 Nf6 14. Bd2 Nbxd5 15. cxd5 Bxe2 16. Qxe2 Nxd5 17. Qd3 Nc7 18. axb6 axb6 19. Rxa8 Nxa8 20. e4 Qb8 21. Nc1 Nc7 22. Ne2 Ne6 23. Nc2 b5 24. Ra1 Qb6 25. Be3 Nd4 26. Nc3 c4 27. Qd1 f5 28. Ne2 fxe4 29. Nexd4 exd4 30. Bxd4 Bxd4+ 31. Qxd4 Qxd4+ 32. Nxd4 exf3 33. Nxf3 b4 34. Rd1 Ra8 35. Rxd6 Ra1+ 36. Kf2 Ra2 37. Rd2 1-0

[Event "South America-ch Rapid 1st"]
[Site "Lima"]
[Date "2023.09.16"]
[Round "2"]
[White "Santiago Lastra, Nefi"]
[Black "Terry, Renato"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1917"]
[BlackElo "2520"]
[PlyCount "90"]
[EventDate "2023.09.16"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Bd3 dxe4 4. Bxe4 Nf6 5. Bf3 Nbd7 6. Bg5 c6 7. Nd2 Qb6 8. Nb3 a5 9. a4 Bb4+ 10. c3 Be7 11. Ne2 e5 12. Be3 e4 13. d5 c5 14. Rg1 0-0 15. Ned4 cxd4 16. Bxd4 Qd6 17. Be2 Qxd5 18. Qc2 Ne5 19. 0-0-0 Nd3+ 20. Kb1 Be6 21. Nc1 Nxc1 22. Kxc1 Qa2 23. Bb5 Bb3 24. Qb1 Qxb1+ 25. Kxb1 Bxd1 26. Rxd1 Rfd8 27. Re1 Rac8 28. f3 Rxd4 29. cxd4 Bb4 30. Re2 exf3 31. gxf3 g6 32. f4 Rd8 33. f5 Rxd4 34. fxg6 hxg6 35. Rf2 Kg7 36. h3 Ne4 37. Rg2 Rd2 38. Rg4 f5 39. Rf4 Bd6 40. Rf3 Be5 41. Rd3 Rxb2+ 42. Kc1 Rh2 43. Rd7+ Kh6 44. Rxb7 Nc3 45. Be8 Bf4# 0-1

[Event "South America-ch 1st"]
[Site "Lima"]
[Date "2023.09.15"]
[Round "2"]
[White "Reynoso, Jorge"]
[Black "Santiago Lastra, Nefi"]
[Result "0-1"]
[ECO "A65"]
[WhiteElo "1425"]
[BlackElo "1917"]
[PlyCount "81"]
[EventDate "2023.09.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Bg5 h6 8. Bh4 Bg7 9. Nf3 Nbd7 10. Bd3 0-0 11. 0-0 a6 12. a4 b6 13. Re1 Re8 14. Bg3 Qc7 15. Bc4 Ng4 16. h3 Nge5 17. Nxe5 Nxe5 18. Ba2 c4 19. Bxe5 Bxe5 20. Qd2 g5 21. Ne2 b5 22. Nd4 Qb6 23. Nc6 Bf4 24. Qd4 Qxd4 25. Nxd4 Bd7 26. Nf3 g4 27. hxg4 Bxg4 28. Nh2 Bh5 29. Nf1 Rac8 30. Bb1 b4 31. f3 Be5 32. Re2 f5 33. Ne3 f4 34. Nf5 c3 35. Ba2 cxb2 36. Rb1 Rc1+ 37. Re1 Rc2 38. Red1 Kh7 39. Nd4 b3 40. Bxb3 Rb8 41. Ba2 0-1

[Event "South America-ch 1st"]
[Site "Lima"]
[Date "2023.09.14"]
[Round "1"]
[White "Santiago Lastra, Nefi"]
[Black "Perez Gormaz, Matias Ariel"]
[Result "0-1"]
[ECO "C20"]
[WhiteElo "1917"]
[BlackElo "2391"]
[PlyCount "68"]
[EventDate "2023.09.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. c4 Nc6 3. Nc3 Bc5 4. g3 d6 5. d3 f5 6. Qh5+ g6 7. Qg5 Nf6 8. Be3 Nd4 9. 0-0-0 Ne6 10. Qh4 Bxe3+ 11. fxe3 Ng4 12. Qxd8+ Kxd8 13. exf5 gxf5 14. Rd2 Nxe3 15. Nf3 c5 16. Be2 Bd7 17. Nh4 Nd4 18. Re1 Rf8 19. Bf3 Nxf3 20. Nxf3 Ng4 21. a3 Bc6 22. Ng5 Ke7 23. b4 h6 24. Nh3 b6 25. Nf4 Kd7 26. b5 Bb7 27. Ng6 Rf7 28. h3 Nf6 29. Rf2 Rg8 30. Nh4 Rxg3 31. Rxf5 Rxd3 32. Nd5 Bxd5 33. cxd5 Rxa3 34. Kb2 Rxh3 0-1

[Event "PER-ch"]
[Site "Lima"]
[Date "2023.09.02"]
[Round "6"]
[White "Gaspar Guevara, Darling Yasmin"]
[Black "Santiago Lastra, Nefi"]
[Result "1/2-1/2"]
[ECO "C03"]
[WhiteElo "1359"]
[BlackElo "1906"]
[PlyCount "118"]
[EventDate "2023.08.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Ne7 4. Be2 b6 5. e5 a5 6. a4 Ba6 7. Ngf3 Bxe2 8. Qxe2 c5 9. c3 Nbc6 10. Qb5 Rc8 11. dxc5 bxc5 12. Qxc5 Ng6 13. Qe3 Qc7 14. 0-0 Ncxe5 15. Nxe5 Bc5 16. Qg3 Qxe5 17. Qxe5 Nxe5 18. Nb3 Bb6 19. Re1 Nc4 20. Nd2 0-0 21. Nxc4 Rxc4 22. Bd2 Rfc8 23. b3 Rg4 24. g3 h5 25. Kg2 Rg6 26. Be3 Bd8 27. b4 Rxc3 28. b5 e5 29. Rec1 Rxc1 30. Rxc1 d4 31. Rc8 Rd6 32. Bd2 Kh7 33. Kf3 f5 34. Ra8 d3 35. Ra6 Rd5 36. b6 e4+ 37. Kg2 g5 38. b7 Bc7 39. Rc6 Be5 40. Rc8 f4 41. gxf4 gxf4 42. b8Q Bxb8 43. Rxb8 e3 44. fxe3 fxe3 45. Rb7+ Kg6 46. Bxe3 d2 47. Rb6+ Kg7 48. Bxd2 Rxd2+ 49. Kg3 h4+ 50. Kxh4 Rxh2+ 51. Kg3 Ra2 52. Ra6 Rxa4 53. Kf3 Kf8 54. Ke3 Ke8 55. Kd3 Kd8 56. Kc3 Kc8 57. Kb3 Ra1 58. Kb2 Ra4 59. Kb3 Ra1 1/2-1/2

[Event "PER-ch"]
[Site "Lima"]
[Date "2023.09.01"]
[Round "5"]
[White "Santiago Lastra, Nefi"]
[Black "Salinas Gonzales, Eliseo Mequias"]
[Result "1-0"]
[ECO "A36"]
[WhiteElo "1906"]
[BlackElo "1640"]
[PlyCount "65"]
[EventDate "2023.08.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 c5 3. e4 Nc6 4. g3 g6 5. Bg2 Bg7 6. Nge2 0-0 7. 0-0 d6 8. h3 Be6 9. d3 Qd7 10. Kh2 Ne8 11. g4 Kh8 12. Ng3 Nd4 13. f4 f5 14. exf5 gxf5 15. g5 Bf7 16. Be3 Nc7 17. Rb1 Rab8 18. Nh5 Bxh5 19. Qxh5 e6 20. Rf2 b5 21. g6 Bf6 22. Rg1 b4 23. Ne2 Nc2 24. Bc1 b3 25. axb3 Rxb3 26. Bc6 Qg7 27. Ba4 Nd4 28. Bxb3 Nxb3 29. Rfg2 Na6 30. gxh7 Qxh7 31. Qf3 Nb4 32. Rg6 Nc2 33. Rxf6 1-0

[Event "PER-ch"]
[Site "Lima"]
[Date "2023.08.31"]
[Round "4"]
[White "Garay Ramirez, Estefano Javier"]
[Black "Santiago Lastra, Nefi"]
[Result "1-0"]
[ECO "A52"]
[WhiteElo "1554"]
[BlackElo "1906"]
[PlyCount "119"]
[EventDate "2023.08.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 Nxe5 5. f4 Bb4+ 6. Bd2 Bxd2+ 7. Qxd2 Nec6 8. Nf3 a5 9. Bd3 Na6 10. Nc3 Nc5 11. 0-0 Nb4 12. Be2 Ra6 13. a3 Rd6 14. Qe3 Nba6 15. b4 b6 16. bxc5 Nxc5 17. e5 Rh6 18. Ne4 Nxe4 19. Qxe4 Qe7 20. Nd4 g6 21. f5 Rh4 22. Rf4 gxf5 23. Nxf5 Qc5+ 24. Kh1 Rxf4 25. Qxf4 Bb7 26. Qg5 Be4 27. Ng7+ Kf8 28. Nh5 Bxg2+ 29. Qxg2 Qxe5 30. Rg1 Ke7 31. Qg5+ Qxg5 32. Rxg5 c6 33. Kg2 h6 34. Re5+ Kd6 35. Rf5 Re8 36. Kf3 Re7 37. Ng3 a4 38. c5+ bxc5 39. Ne4+ Ke6 40. Rh5 d5 41. Rxh6+ Ke5 42. Nxc5 Kd4 43. Rxc6 Re3+ 44. Kf2 Rxa3 45. Nd3 Ra1 46. Ne1 Ra2 47. h4 a3 48. Ra6 Ke4 49. h5 Kf5 50. h6 Rb2 51. h7 Rb8 52. Rxa3 Kg6 53. Bd3+ Kg7 54. Nf3 Rb2+ 55. Ke3 Rb8 56. Ra7 d4+ 57. Nxd4 Rh8 58. Ra5 Re8+ 59. Be4 f5 60. Nxf5+ 1-0

[Event "PER-ch"]
[Site "Lima"]
[Date "2023.08.30"]
[Round "2"]
[White "Pezo Flores, Ramiro Golber"]
[Black "Santiago Lastra, Nefi"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "1515"]
[BlackElo "1906"]
[PlyCount "73"]
[EventDate "2023.08.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 d5 2. Nc3 dxe4 3. Nxe4 Nd7 4. d4 Ndf6 5. Ng3 h5 6. Bc4 h4 7. N3e2 e5 8. Bg5 exd4 9. Qxd4 Qxd4 10. Nxd4 Bc5 11. 0-0-0 Bg4 12. Re1+ Kf8 13. Ngf3 h3 14. g3 Rh5 15. Bf4 Ne7 16. c3 b5 17. Bb3 Ned5 18. Ne5 Bxd4 19. cxd4 Rd8 20. f3 Be6 21. Nc6 Re8 22. Be5 Bd7 23. Na5 Nb4 24. Kd2 Na6 25. g4 Rh8 26. g5 Nh5 27. Rc1 f6 28. Bxc7 Nxc7 29. Rxc7 Re7 30. Rhc1 g6 31. gxf6 Nxf6 32. Rxa7 Rh4 33. Ra8+ Kg7 34. Kd3 Rf4 35. Rf1 Bf5+ 36. Kc3 Re3+ 37. Kb4 1-0

[Event "PER-ch"]
[Site "Lima"]
[Date "2023.08.30"]
[Round "3"]
[White "Santiago Lastra, Nefi"]
[Black "Rucoba Tuanama, Denis"]
[Result "1-0"]
[ECO "B11"]
[WhiteElo "1906"]
[BlackElo "1577"]
[PlyCount "57"]
[EventDate "2023.08.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 Nf6 6. d3 e5 7. g4 dxe4 8. dxe4 Bc5 9. g5 Nfd7 10. Bd2 b5 11. 0-0-0 Qb6 12. h4 Nf8 13. Bh3 Nbd7 14. h5 Ne6 15. g6 hxg6 16. hxg6 0-0-0 17. Qxf7 Rxh3 18. Rxh3 Ndf8 19. Rh7 Rd7 20. Qf5 Qc7 21. Rh8 Kb7 22. Be3 Bxe3+ 23. fxe3 Rxd1+ 24. Nxd1 Qd6 25. Qf7+ Kb6 26. Rh2 Ng5 27. Qxg7 Nfe6 28. Qh8 Nxe4 29. g7 1-0

[Event "PER-ch"]
[Site "Lima"]
[Date "2023.08.29"]
[Round "1"]
[White "Santiago Lastra, Nefi"]
[Black "Quiroz Alva, Gian Carlo Gabriel"]
[Result "1-0"]
[ECO "A11"]
[WhiteElo "1906"]
[BlackElo "1609"]
[PlyCount "73"]
[EventDate "2023.08.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 c6 2. g3 d5 3. b3 Nf6 4. Bb2 Bf5 5. Bg2 e6 6. e3 Be7 7. Ne2 0-0 8. 0-0 Nbd7 9. d4 a5 10. Ba3 a4 11. Bxe7 Qxe7 12. Nbc3 Qb4 13. cxd5 axb3 14. e4 b2 15. Rb1 Nxe4 16. Bxe4 Bxe4 17. Nxe4 Rxa2 18. dxe6 Nb6 19. exf7+ Rxf7 20. Qc2 Qc4 21. Qd2 Qb3 22. Nd6 Rd7 23. Qc3 Qe6 24. Nf4 Nd5 25. Nxd5 Qxd5 26. Nc4 Qxd4 27. Qb3 Ra6 28. Rxb2 Qf6 29. Nd6+ Kh8 30. Nxb7 Rd5 31. Nc5 Ra8 32. Rc2 Rf5 33. Rfc1 Rf8 34. Qc3 Rd8 35. Kg2 Rf8 36. f3 h5 37. h4 1-0

[Event "PER-ch"]
[Site "Lima"]
[Date "2022.05.17"]
[Round "1"]
[White "Santiago Lastra, Nefi"]
[Black "Vera Siguenas, Deivy Anthoni"]
[Result "0-1"]
[ECO "A36"]
[WhiteElo "1923"]
[BlackElo "2498"]
[PlyCount "63"]
[EventDate "2022.05.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. c4 Nc6 3. Nc3 a6 4. g3 Rb8 5. a4 g6 6. Bg2 Bg7 7. Nge2 d6 8. 0-0 Nf6 9. h3 0-0 10. d3 Ne8 11. f4 Nc7 12. f5 b5 13. Kh1 Ne5 14. fxg6 hxg6 15. cxb5 axb5 16. a5 b4 17. Na4 Ba6 18. Nf4 Ne6 19. Nb6 Nxf4 20. Rxf4 Nxd3 21. Bf1 Nxf4 22. Bxa6 Nh5 23. Qb3 Rxb6 24. axb6 Qxb6 25. Be2 c4 26. Qxc4 Nxg3+ 27. Kg2 Nxe2 28. Qxe2 Rc8 29. h4 b3 30. Kh3 Qg1 31. Qg4 Qh1+ 32. Kg3 0-1

[Event "Moquegua Ilo GP"]
[Site "Moquegua Ilo"]
[Date "2017.11.03"]
[Round "4"]
[White "Santiago Lastra, Nefi"]
[Black "Lovon Manzano, Christian"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1939"]
[BlackElo "1720"]
[PlyCount "57"]
[EventDate "2017.11.01"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "PER"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 d5 3. Bxf6 exf6 4. e3 Bd6 5. Nd2 0-0 6. Bd3 Be6 7. h4 Nd7 8. c3 c5 9. f4 f5 10. Qb1 Qe7 11. g4 Nf6 12. g5 Ne4 13. Bxe4 dxe4 14. Ne2 Rac8 15. 0-0 b5 16. Rf2 cxd4 17. cxd4 b4 18. Ng3 Rc7 19. Qd1 Rfc8 20. Nb3 g6 21. d5 Bd7 22. Rd2 Bb5 23. Nd4 Qd7 24. h5 Bd3 25. hxg6 fxg6 26. Rxd3 exd3 27. Qxd3 Bxf4 28. exf4 Qxd5 29. Nge2 1/2-1/2

[Event "Moquegua Ilo GP"]
[Site "Moquegua Ilo"]
[Date "2017.11.03"]
[Round "5"]
[White "Valenzuela Pumarimay, Cesar"]
[Black "Santiago Lastra, Nefi"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "1637"]
[BlackElo "1939"]
[PlyCount "72"]
[EventDate "2017.11.01"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "PER"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. Nf3 g6 2. g3 Bg7 3. Bg2 d6 4. d4 c6 5. c3 Nd7 6. Na3 Qc7 7. Nc2 h6 8. Qd3 e5 9. 0-0 Ne7 10. e4 0-0 11. Be3 a5 12. Qd2 Kh7 13. Nh4 Nb6 14. b3 g5 15. Nf3 Ng6 16. dxe5 dxe5 17. Bc5 Rd8 18. Qe3 Nd7 19. Rad1 Nxc5 20. Qxc5 Bf8 21. Qe3 Be6 22. h4 gxh4 23. Nxh4 Nxh4 24. gxh4 Be7 25. f4 Rxd1 26. Rxd1 exf4 27. Qd3 Rd8 28. Qf3 Rxd1+ 29. Qxd1 Bxh4 30. Nd4 Qd8 31. Qh5 Qg5 32. Qf3 Qg3 33. Qh5 Qf2+ 34. Kh1 Qe1+ 35. Bf1 Qxf1+ 36. Kh2 Bg3# 0-1

[Event "Moquegua Ilo GP"]
[Site "Moquegua Ilo"]
[Date "2017.11.02"]
[Round "3"]
[White "Vilca Torres, Ludwing Wily"]
[Black "Santiago Lastra, Nefi"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "1464"]
[BlackElo "1939"]
[PlyCount "60"]
[EventDate "2017.11.01"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "PER"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 Qxd5 4. c4 Qe4+ 5. Be3 Na6 6. Nc3 Qg6 7. Nf3 Bg4 8. Ne5 Bxd1 9. Nxg6 hxg6 10. Rxd1 Nf6 11. Be2 e6 12. 0-0 Bd6 13. h3 Nc7 14. Bf3 0-0-0 15. Kh1 Rh4 16. Bg5 Rh7 17. d5 cxd5 18. cxd5 Be5 19. dxe6 Nxe6 20. Rc1 Nxg5 21. Ne4+ Bc7 22. Nxg5 Rh4 23. Nxf7 Rd2 24. Rfd1 Rhd4 25. Rxd2 Rxd2 26. Kg1 Kb8 27. Rb1 a5 28. a3 Bb6 29. Rf1 Rxb2 30. Nd6 Bc7 1/2-1/2

[Event "Arequipa Llerena Memorial U2200"]
[Site "Arequipa"]
[Date "2016.12.09"]
[Round "2.1"]
[White "Santiago Lastra, Nefi"]
[Black "Aguilar, Victor"]
[Result "1/2-1/2"]
[ECO "C56"]
[WhiteElo "1940"]
[BlackElo "2188"]
[PlyCount "22"]
[EventDate "2016.12.08"]
[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 Bc5 4. 0-0 Nf6 5. d4 exd4 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. Ng5 Kd7 10. Nxe6 fxe6 11. Qh5 g5 1/2-1/2

[Event "Arequipa Llerena Memorial U2200"]
[Site "Arequipa"]
[Date "2016.12.08"]
[Round "1.10"]
[White "Sumaria Choqueluque, Nikole Ange"]
[Black "Santiago Lastra, Nefi"]
[Result "0-1"]
[ECO "A10"]
[WhiteElo "1270"]
[BlackElo "1940"]
[PlyCount "54"]
[EventDate "2016.12.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 f5 2. g3 Nc6 3. Bg2 Ne5 4. d3 e6 5. Nc3 Be7 6. f4 Ng6 7. Nf3 Nf6 8. a3 0-0 9. 0-0 b6 10. Ne5 Rb8 11. Nxg6 hxg6 12. e4 Bb7 13. b4 Kh7 14. exf5 gxf5 15. Bxb7 Rxb7 16. Qf3 c6 17. Bb2 a5 18. b5 Bc5+ 19. Kg2 Ng4 20. Rae1 Bd4 21. h3 Nh6 22. bxc6 dxc6 23. Rxe6 Rf6 24. Rxf6 Rd7 25. Rd1 Bxc3 26. Bxc3 gxf6 27. Qxc6 Rxd3 0-1

[Event "Arica 3rd"]
[Site "Arica"]
[Date "2016.07.12"]
[Round "4.9"]
[White "Santiago Lastra, Nefi"]
[Black "Gemy Vargas, Jose Daniel"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "1940"]
[BlackElo "2394"]
[PlyCount "95"]
[EventDate "2016.07.10"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "CHI"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Be2 c5 5. 0-0 Nc6 6. b3 Bd6 7. Bb2 0-0 8. Nbd2 Qe7 9. Ne5 Nd7 10. f4 f6 11. Nxd7 Bxd7 12. c4 cxd4 13. exd4 Ba3 14. Bc3 Bb4 15. Qc2 dxc4 16. bxc4 Rad8 17. Bb2 Ba3 18. Rf3 Bxb2 19. Qxb2 Be8 20. Nb3 a5 21. d5 exd5 22. cxd5 Nb4 23. Rc1 b5 24. Nxa5 Nxd5 25. Nc6 Bxc6 26. Rxc6 b4 27. Qc2 Kh8 28. h4 Nc3 29. Bf1 Ra8 30. Qb3 Qe1 31. Re6 Qd2 32. Kh2 Qxa2 33. Qxa2 Nxa2 34. Re7 Nc3 35. Rg3 g6 36. h5 Nd5 37. Rd7 Nxf4 38. hxg6 hxg6 39. Rd4 g5 40. Rxb4 Ra1 41. Rf3 Rd8 42. Rb7 Rdd1 43. Rc3 Rdc1 44. Re3 Re1 45. Rc3 Rec1 46. Re3 Rc8 47. Bc4 Rc1 48. Ree7 1/2-1/2

[Event "Arica op 2nd"]
[Site "Arica"]
[Date "2015.01.15"]
[Round "4"]
[White "Santiago Lastra, Nefi"]
[Black "Fernandez Sanchez, Fernando"]
[Result "0-1"]
[ECO "A30"]
[WhiteElo "1969"]
[BlackElo "2361"]
[PlyCount "66"]
[EventDate "2015.01.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHI"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. e3 Nc6 5. Ne2 e5 6. f4 Nge7 7. Nbc3 0-0 8. 0-0 d6 9. h3 Be6 10. Nd5 f5 11. Nxe7+ Nxe7 12. Qc2 Rb8 13. Kh2 Qd7 14. d3 a6 15. Bd2 b5 16. b3 Rfc8 17. Rad1 d5 18. fxe5 Bxe5 19. Nf4 Bf7 20. Be1 d4 21. e4 fxe4 22. Bxe4 g5 23. Qg2 gxf4 24. gxf4+ Bg7 25. f5 Qd6+ 26. Bg3 Qf6 27. Rf4 Kh8 28. Rg4 Rb6 29. Rg1 Bh5 30. Rh4 Qg5 31. Kh1 Nxf5 32. Rxh5 Qxh5 33. Bf3 Qg6 0-1

[Event "Arica op 2nd"]
[Site "Arica"]
[Date "2015.01.14"]
[Round "2"]
[White "Santiago Lastra, Nefi"]
[Black "Daniel, Joseph"]
[Result "0-1"]
[ECO "C26"]
[WhiteElo "1969"]
[BlackElo "2394"]
[PlyCount "74"]
[EventDate "2015.01.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHI"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Bc5 3. g3 Nf6 4. Bg2 Nc6 5. Nge2 a6 6. d3 d6 7. h3 Be6 8. Nd5 Bxd5 9. exd5 Ne7 10. Bg5 Nd7 11. Qd2 h6 12. Be3 Bxe3 13. fxe3 c6 14. dxc6 bxc6 15. 0-0 0-0 16. Kh2 d5 17. a4 a5 18. b4 Qb6 19. Rfb1 axb4 20. Rxb4 Qa5 21. c3 Rfb8 22. d4 e4 23. Bf1 Nf5 24. Nf4 Qc7 25. Qf2 Qd6 26. Rab1 Rxb4 27. Rxb4 c5 28. dxc5 Qxc5 29. Nxd5 Qxd5 30. Rb5 Nc5 31. a5 Nd6 32. c4 Qe5 33. Qa2 Nxb5 34. cxb5 Nd3 35. Bg2 Qxb5 36. Bxe4 Rxa5 37. Qc2 Qb2 0-1

[Event "Arequipa GP Peru Sur"]
[Site "Arequipa"]
[Date "2013.06.29"]
[Round "5"]
[White "Robledo, Manuel"]
[Black "Santiago Lastra, Nefi"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2257"]
[BlackElo "2050"]
[PlyCount "60"]
[EventDate "2013.06.27"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "PER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Qa4+ Bd7 8. Qb3 Qc8 9. Be3 0-0 10. Nf3 a5 11. Rb1 b6 12. Be2 Rd8 13. 0-0 a4 14. Qa3 Bf8 15. Qc1 Qb7 16. d5 Bg4 17. c4 Qa6 18. Nd4 Bxe2 19. Nxe2 Nd7 20. Nd4 Ne5 21. Rb5 Bg7 22. h3 c5 23. dxc6 Nd3 24. Qb1 Nxf2 25. c7 Nxh3+ 26. gxh3 Rxd4 27. Rxb6 Qa7 28. Rb8+ Bf8 29. c8Q Rd8 30. Bxa7 Rxc8 1-0

[Event "Arequipa GP Peru Sur"]
[Site "Arequipa"]
[Date "2013.06.28"]
[Round "3"]
[White "Principe, Alexander"]
[Black "Santiago Lastra, Nefi"]
[Result "1-0"]
[ECO "C11"]
[WhiteElo "2271"]
[BlackElo "2050"]
[PlyCount "101"]
[EventDate "2013.06.27"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "PER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 a6 8. Qd2 b5 9. dxc5 Bxc5 10. Bxc5 Nxc5 11. Qf2 Qb6 12. Bd3 Bb7 13. 0-0 0-0-0 14. Ne2 Kc7 15. Rac1 Rd7 16. Rfd1 g6 17. Nfd4 h5 18. c3 Rb8 19. b4 Na4 20. Rd2 Ne7 21. Rb1 Bc6 22. Bc2 Nf5 23. Bb3 Rc8 24. Rbd1 Kb7 25. Nxf5 Qxf2+ 26. Kxf2 gxf5 27. Bxa4 bxa4 28. c4 Rdc7 29. c5 Rg8 30. Nd4 Rg4 31. Ke3 Rc8 32. Nf3 d4+ 33. Nxd4 Bxg2 34. Nf3 Bxf3 35. Rd7+ Rc7 36. Kxf3 h4 37. R1d6 h3 38. Rxc7+ Kxc7 39. Rxa6 Rg2 40. Rxa4 Rxh2 41. Kg3 Rc2 42. Kxh3 Kc6 43. a3 Kd5 44. Kg3 Rc4 45. Kf3 Kd4 46. c6 Kd5 47. Ra5+ Kxc6 48. Rc5+ Rxc5 49. bxc5 Kxc5 50. Kg3 Kd4 51. Kh4 1-0

[Event "Arequipa GP Peru Sur"]
[Site "Arequipa"]
[Date "2013.06.28"]
[Round "4"]
[White "Santiago Lastra, Nefi"]
[Black "Anazco Huamanquispe, Miguel"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2050"]
[PlyCount "69"]
[EventDate "2013.06.27"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "PER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. h4 e5 2. d4 exd4 3. Nf3 Bc5 4. Nxd4 Nc6 5. Bg5 Nf6 6. Nxc6 bxc6 7. e3 d5 8. Bd3 h6 9. Bf4 Qe7 10. c3 Rb8 11. Qc2 Bd6 12. 0-0 0-0 13. Nd2 c5 14. Rfe1 Be6 15. b3 Bd7 16. Rad1 Bc6 17. c4 dxc4 18. Nxc4 Nh5 19. Nxd6 cxd6 20. Bxd6 Qd7 21. Bxb8 Qg4 22. Bg3 Nxg3 23. fxg3 Qxg3 24. Qf2 Qg4 25. Bc4 g6 26. Rd6 Be4 27. Rf6 h5 28. Rf4 Qxg2+ 29. Qxg2 Bxg2 30. Kxg2 Kg7 31. e4 f6 32. Rd1 Rb8 33. Rd7+ Kh6 34. Rxf6 Rb6 35. Bg8 1-0

[Event "Arequipa GP Peru Sur"]
[Site "Arequipa"]
[Date "2013.06.27"]
[Round "1"]
[White "Chavez Barriga, Jefferson"]
[Black "Santiago Lastra, Nefi"]
[Result "0-1"]
[ECO "C01"]
[BlackElo "2050"]
[PlyCount "76"]
[EventDate "2013.06.27"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "PER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nc6 5. Nf3 Bg4 6. c3 Bd6 7. Qe2+ Nge7 8. Bg5 f6 9. Bh4 Qd7 10. Nbd2 0-0-0 11. 0-0-0 Ng6 12. Bxg6 hxg6 13. Bg3 g5 14. Bxd6 cxd6 15. h3 Bf5 16. Rhe1 Kb8 17. Qb5 Qf7 18. Nb3 Bd7 19. Re3 a6 20. Qe2 Rhe8 21. Ne1 f5 22. Nd3 Re4 23. Nd2 Rc8 24. Kb1 Na5 25. Ka1 Nc4 26. Nxc4 dxc4 27. Nb4 Rce8 28. Rxe4 Rxe4 29. Qd2 f4 30. Nc2 Bf5 31. Na3 Qe6 32. d5 Qe7 33. g3 Re2 34. Qd4 Re1 35. Qd2 Re2 36. Qd4 Re4 37. Qb6 Re1 38. Qd4 Bd3 0-1

[Event "Arequipa GP Peru Sur"]
[Site "Arequipa"]
[Date "2013.06.27"]
[Round "2"]
[White "Santiago Lastra, Nefi"]
[Black "Velasquez, Miguel"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "2050"]
[PlyCount "57"]
[EventDate "2013.06.27"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "PER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 Nbd7 5. b3 b6 6. cxd5 exd5 7. 0-0 Bb7 8. Nd4 c5 9. Nf5 g6 10. Nh4 Bg7 11. Bb2 0-0 12. d3 Re8 13. Nd2 Qe7 14. Re1 Rad8 15. Qc2 Qd6 16. Rad1 Qb8 17. e3 Qc8 18. Bh3 Qc6 19. f4 Re7 20. Nf1 Rde8 21. Qc1 Qb5 22. g4 a5 23. Ng3 Rf8 24. g5 Ne8 25. Bxg7 Kxg7 26. Ngf5+ gxf5 27. Nxf5+ Kh8 28. Nxe7 Ng7 29. a4 1-0

[Event "Arequipa op 1st"]
[Site "Arequipa"]
[Date "2013.06.01"]
[Round "5"]
[White "Cornejo, Max"]
[Black "Santiago Lastra, Nefi"]
[Result "1-0"]
[ECO "C12"]
[WhiteElo "2380"]
[BlackElo "2007"]
[PlyCount "109"]
[EventDate "2013.05.25"]
[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 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3 7. bxc3 Ne4 8. Bd3 Nxd2 9. Qxd2 c5 10. f4 c4 11. Be2 Qa5 12. a3 Bd7 13. Bf3 Na6 14. Ne2 0-0-0 15. h4 Rdf8 16. Qc1 f6 17. Kd2 Be8 18. a4 Qd8 19. Qg1 Bg6 20. Qe3 Qe7 21. h5 Be8 22. exf6 Qxf6 23. Bg4 Nc7 24. Qe5 Rf7 25. g3 Rhf8 26. Rhe1 Bd7 27. Ng1 Qxe5 28. Rxe5 Rf6 29. Nf3 a5 30. Re3 Rd8 31. Ne5 Be8 32. Ree1 Rd6 33. Ra2 Na8 34. Rf1 Kc7 35. Be2 Nb6 36. Rfa1 Nc8 37. Ke3 Rb6 38. g4 Nd6 39. Bf3 Rf8 40. Rg1 Kb8 41. f5 exf5 42. Bxd5 f4+ 43. Kf3 Ka7 44. Re1 Rf6 45. Kf2 Bf7 46. Bxf7 Rxf7 47. Nxf7 Nxf7 48. Kf3 Rf6 49. Rb2 Ng5+ 50. Kf2 Ka6 51. Rb5 Nh3+ 52. Kg2 Ng5 53. Ree5 f3+ 54. Kf2 Nh3+ 55. Kf1 1-0

[Event "Arequipa op 1st"]
[Site "Arequipa"]
[Date "2013.06.01"]
[Round "6"]
[White "Santiago Lastra, Nefi"]
[Black "Valenzuela Pumarimay, Cesar"]
[Result "1-0"]
[ECO "A15"]
[WhiteElo "2007"]
[PlyCount "62"]
[EventDate "2013.05.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. c4 e6 2. g3 Nf6 3. Bg2 Be7 4. f4 c6 5. e4 d5 6. e5 Nfd7 7. b3 0-0 8. Nf3 f6 9. Bb2 b5 10. cxd5 cxd5 11. Nc3 b4 12. Ne2 Nc6 13. Rc1 Bb7 14. Bh3 f5 15. Rxc6 Bxc6 16. Ned4 Nc5 17. Nxc6 Qd7 18. Nxe7+ Qxe7 19. d3 Rac8 20. 0-0 Rc7 21. Rf2 Rfc8 22. Bf1 a5 23. Nd4 Qd7 24. g4 Qe8 25. gxf5 exf5 26. Nxf5 Qg6+ 27. Ng3 Rf8 28. f5 Qg5 29. Bg2 Qe3 30. Bxd5+ Kh8 31. Qf3 Qxe5 1-0

[Event "Arequipa op 1st"]
[Site "Arequipa"]
[Date "2013.05.31"]
[Round "4"]
[White "Santiago Lastra, Nefi"]
[Black "Lazaro Cuevas, Ronald Anthony"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "2007"]
[BlackElo "1706"]
[PlyCount "53"]
[EventDate "2013.05.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. c4 c5 2. g3 Nf6 3. Bg2 g6 4. Nc3 Bg7 5. f4 Nc6 6. Nf3 d5 7. cxd5 Nxd5 8. 0-0 Be6 9. Ng5 Nxc3 10. bxc3 Bd5 11. e4 Bc4 12. Re1 h6 13. Nh3 e5 14. Ba3 Qa5 15. Qc1 0-0 16. Qb2 Rab8 17. Rad1 Rfd8 18. Nf2 b5 19. Bxc5 Qxa2 20. Qxa2 Bxa2 21. fxe5 Bb3 22. Rb1 Bc2 23. Rb2 Rxd2 24. Bd6 Bxe5 25. Bxb8 Bxb8 26. Nd3 Rxd3 27. Rxc2 1-0

[Event "Lima GP IRT op"]
[Site "Lima"]
[Date "2013.??.??"]
[Round "1"]
[White "Meneses, Kevin"]
[Black "Santiago Lastra, Nefi"]
[Result "0-1"]
[ECO "A85"]
[BlackElo "2011"]
[PlyCount "74"]
[EventDate "2013.08.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. Nc3 d5 4. Nf3 Nf6 5. Bg5 c6 6. c5 Nbd7 7. e3 h6 8. Bxf6 Qxf6 9. b4 a6 10. a4 g5 11. b5 g4 12. bxc6 bxc6 13. Nd2 Bg7 14. h3 0-0 15. g3 h5 16. Bg2 Nxc5 17. 0-0 Ne4 18. Ndxe4 fxe4 19. Ne2 e5 20. dxe5 Qxe5 21. Rc1 gxh3 22. Bh1 Rf6 23. Nf4 Bg4 24. Qd2 h4 25. Rc2 Rh6 26. Kh2 Kh7 27. Rfc1 Bd7 28. Rc5 hxg3+ 29. fxg3 Rb8 30. R5c2 Rb3 31. a5 Qe7 32. Rc5 Rb2 33. R1c2 Qxc5 34. Rxb2 Bxb2 35. Qxb2 Qxa5 36. Qe5 Qd2+ 37. Kg1 Qe1+ 0-1

[Event "Lima GP IRT op"]
[Site "Lima"]
[Date "2013.??.??"]
[Round "3"]
[White "Rojas, Steven"]
[Black "Santiago Lastra, Nefi"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "1546"]
[BlackElo "2011"]
[PlyCount "81"]
[EventDate "2013.08.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. e4 f5 2. exf5 Nf6 3. Nf3 c6 4. d4 Qa5+ 5. Nc3 Qxf5 6. Bd3 Qh5 7. 0-0 d6 8. Bf4 Bg4 9. Re1 Bxf3 10. gxf3 Kd8 11. Qe2 g5 12. Bg3 Nbd7 13. Bf5 Qf7 14. Be6 Qg6 15. d5 h5 16. dxc6 bxc6 17. h3 Nc5 18. b4 Nxe6 19. Qxe6 Rh6 20. Rad1 Nd7 21. Qc4 e5 22. Qe4 Rc8 23. a3 Be7 24. Qe2 Qf5 25. Kg2 Rg6 26. Qd3 Qxd3 27. Rxd3 a6 28. Red1 Ke8 29. Ne4 d5 30. Nc3 Kf7 31. Re1 Bd6 32. Na4 Re8 33. Rde3 Rf6 34. Nb2 Rf5 35. Nd3 Kf6 36. f4 gxf4 37. Nxf4 Rg8 38. Kh1 exf4 39. Re6+ Kf7 40. Rxd6 Ne5 41. Bxf4 0-1

[Event "Lima GP IRT op"]
[Site "Lima"]
[Date "2013.??.??"]
[Round "6"]
[White "Santiago Lastra, Nefi"]
[Black "Maravi Ceron, Jhon"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2011"]
[BlackElo "1547"]
[PlyCount "52"]
[EventDate "2013.08.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. b4 e6 2. c3 d5 3. d4 c6 4. Bf4 Nf6 5. Bxb8 Rxb8 6. Nd2 Bd6 7. Ngf3 0-0 8. Qc2 b6 9. e4 dxe4 10. Nxe4 Nxe4 11. Qxe4 c5 12. dxc5 bxc5 13. Bd3 f5 14. Qc4 cxb4 15. 0-0 bxc3 16. Qxc3 Qe7 17. Rab1 Bb7 18. Be2 Bd5 19. Rxb8 Rxb8 20. a4 Bxf3 21. Bxf3 Qh4 22. g3 Qxa4 23. Ra1 Qd7 24. Qd4 Qc7 25. Qe3 Re8 26. Rxa7 Qc5 1/2-1/2

[Event "Lima GP IRT op"]
[Site "Lima"]
[Date "2013.??.??"]
[Round "2"]
[White "Santiago Lastra, Nefi"]
[Black "Martinez Alcantara, Jose Eduardo"]
[Result "0-1"]
[ECO "A36"]
[WhiteElo "2011"]
[BlackElo "2284"]
[PlyCount "70"]
[EventDate "2013.08.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. g3 Nf6 2. Bg2 g6 3. e4 d6 4. c4 c5 5. Ne2 Bg7 6. d3 Nc6 7. Nbc3 0-0 8. h4 Bd7 9. Bg5 h6 10. Bxf6 Bxf6 11. Qd2 Bg7 12. f4 e6 13. g4 a6 14. Ng3 Nd4 15. Nd1 b5 16. Rc1 Rb8 17. g5 bxc4 18. dxc4 hxg5 19. hxg5 f6 20. Rc3 fxg5 21. fxg5 e5 22. Ra3 Rf4 23. Ne2 Rg4 24. Bf3 Qxg5 25. Nxd4 Rg1+ 26. Ke2 Qxd2+ 27. Kxd2 Rxh1 28. Bxh1 exd4 29. Rxa6 Be5 30. Ra7 Bg4 31. b3 Rf8 32. Bg2 Bf4+ 33. Kc2 d3+ 34. Kxd3 Bxd1 35. Bh3 Rf6 0-1

[Event "Ilo Regional Sur op"]
[Site "Ilo Moquegua"]
[Date "2012.04.08"]
[Round "7"]
[White "Lopez Lazo, Ana Paula"]
[Black "Santiago Lastra, Nefi"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "1760"]
[BlackElo "2051"]
[PlyCount "46"]
[EventDate "2012.04.05"]
[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 d5 2. exd5 Nf6 3. Nf3 Qxd5 4. Nc3 Qd6 5. h3 c6 6. Bc4 Bf5 7. d3 Nbd7 8. Be3 e6 9. Qd2 Qc7 10. 0-0-0 Nb6 11. Bb3 Nbd5 12. Bd4 a5 13. Nxd5 Nxd5 14. Be5 Bd6 15. Bxd6 Qxd6 16. g4 Bg6 17. Nh4 Nf4 18. Nxg6 hxg6 19. a3 g5 20. Qe3 a4 21. Ba2 b5 22. c3 Ke7 23. Kc2 Kf6 1/2-1/2

[Event "Ilo Regional Sur op"]
[Site "Ilo Moquegua"]
[Date "2012.04.08"]
[Round "6"]
[White "Santiago Lastra, Nefi"]
[Black "Quispe Rodriguez, Jair Lino Paul"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "2051"]
[PlyCount "26"]
[EventDate "2012.04.05"]
[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 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Bb5 Bd7 6. Bxc6 bxc6 7. f4 f6 8. Nf3 cxd4 9. cxd4 c5 10. 0-0 Qc7 11. exf6 Nxf6 12. Ne5 cxd4 13. Qxd4 Bc5 0-1

[Event "Ilo Regional Sur op"]
[Site "Ilo Moquegua"]
[Date "2012.04.07"]
[Round "5"]
[White "Machaca Saira, Celestino"]
[Black "Santiago Lastra, Nefi"]
[Result "1/2-1/2"]
[ECO "A84"]
[WhiteElo "1659"]
[BlackElo "2051"]
[PlyCount "154"]
[EventDate "2012.04.05"]
[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 e6 2. c4 f5 3. Nf3 c6 4. e3 Nf6 5. Nc3 d6 6. Bd3 Na6 7. 0-0 Be7 8. e4 fxe4 9. Nxe4 0-0 10. Re1 c5 11. Neg5 Nc7 12. dxc5 h6 13. cxd6 Qxd6 14. Ne4 Nxe4 15. Rxe4 e5 16. c5 Qf6 17. Rxe5 Bg4 18. Qe2 Rae8 19. Qe4 Be6 20. Bg5 hxg5 21. Qh7+ Kf7 22. Nxg5+ Qxg5 23. Rxg5 Bxg5 24. Qg6+ Kg8 25. Qxg5 Nd5 26. Re1 Nf4 27. Bb1 Bh3 28. Rxe8 Rxe8 29. f3 Re1+ 30. Kf2 Rxb1 31. Qxf4 Rxb2+ 32. Ke3 Bxg2 33. Qb8+ Kh7 34. c6 Rxa2 35. c7 Bh3 36. c8Q Bxc8 37. Qxc8 Rxh2 38. Qxb7 Rh6 39. Qxa7 Rf6 40. Ke4 Re6+ 41. Kd5 Rf6 42. Qe3 Kh8 43. f4 Kg8 44. Qe8+ Kh7 45. Ke5 Ra6 46. f5 Rh6 47. Qf7 Rb6 48. Kf4 Rb1 49. Qg6+ Kh8 50. Qh5+ Kg8 51. Qf3 Rb6 52. Kg5 Rf6 53. Qc3 Kf7 54. Qc4+ Kf8 55. Qc8+ Kf7 56. Kg4 Rh6 57. Qd7+ Kf8 58. Kg5 Rf6 59. Qc7 Rh6 60. Qd8+ Kf7 61. Qd5+ Kf8 62. Qe5 Kf7 63. Kf4 Rf6 64. Qc7+ Kf8 65. Ke5 Rh6 66. Qd7 Rf6 67. Qc8+ Kf7 68. Qc4+ Kf8 69. Qd5 Rh6 70. Qa8+ Kf7 71. Qb7+ Kf8 72. Qc8+ Kf7 73. Qc7+ Kf8 74. Qd8+ Kf7 75. Qg5 Kf8 76. Qd8+ Kf7 77. Qg5 Kf8 1/2-1/2

[Event "Ilo Regional Sur op"]
[Site "Ilo Moquegua"]
[Date "2012.04.06"]
[Round "3"]
[White "Ortega, Jaime"]
[Black "Santiago Lastra, Nefi"]
[Result "1-0"]
[ECO "A85"]
[WhiteElo "1936"]
[BlackElo "2051"]
[PlyCount "120"]
[EventDate "2012.04.05"]
[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 e6 2. c4 f5 3. Nc3 Nf6 4. Bg5 Be7 5. e3 d6 6. Nf3 c6 7. Bd3 Na6 8. 0-0 0-0 9. a3 Nc7 10. b4 Bd7 11. Qb3 Kh8 12. a4 Be8 13. b5 h6 14. Bxf6 gxf6 15. Rfb1 Rg8 16. b6 axb6 17. Qxb6 Bh5 18. Ne1 Qd7 19. a5 e5 20. Qxb7 f4 21. Kh1 fxe3 22. fxe3 exd4 23. exd4 f5 24. Be2 Bxe2 25. Nxe2 Rae8 26. Ng1 Bf6 27. Qb2 Ne6 28. Ngf3 Qg7 29. Qb7 Re7 30. Qxc6 Nxd4 31. Nxd4 Bxd4 32. Ra2 Rge8 33. Nf3 Bc5 34. Qd5 Qc3 35. Qd2 Qxc4 36. Qxh6+ Rh7 37. Qf6+ Kg8 38. Qg6+ Kf8 39. Qxf5+ Rf7 40. Qc2 Qg4 41. Ra4 Qe6 42. Qd2 Qg6 43. Rf1 Be3 44. Qb2 Qh5 45. a6 Bf4 46. Qf2 Be3 47. Qg3 Qd5 48. Rg4 Qd3 49. Rg8+ Ke7 50. Rxe8+ Kxe8 51. Qg8+ Rf8 52. Qe6+ Kd8 53. Re1 Re8 54. Qf6+ Kd7 55. h3 Qxa6 56. Rd1 Bc5 57. Ne5+ Kc8 58. Qf5+ Kb8 59. Rb1+ Ka8 60. Qf3+ Ka7 1-0

[Event "Ilo Regional Sur op"]
[Site "Ilo Moquegua"]
[Date "2012.04.06"]
[Round "4"]
[White "Santiago Lastra, Nefi"]
[Black "Manchego Martell, Abel"]
[Result "1-0"]
[ECO "B24"]
[WhiteElo "2051"]
[BlackElo "1665"]
[PlyCount "111"]
[EventDate "2012.04.05"]
[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 d6 3. g3 Nc6 4. Bg2 Nf6 5. Nge2 a6 6. 0-0 e6 7. f4 Bd7 8. h3 Be7 9. d3 Qc7 10. Be3 b5 11. Qd2 Rc8 12. g4 h6 13. Ng3 Na5 14. Nce2 Bc6 15. f5 e5 16. Nh5 Nxh5 17. gxh5 Ba8 18. f6 Bxf6 19. Rxf6 gxf6 20. Rf1 Qd8 21. h4 Nc6 22. Ng3 Ne7 23. Bh3 Rg8 24. Qf2 Bc6 25. Bxh6 Bd7 26. Bg2 Be6 27. Kh2 Qd7 28. Qxf6 Rc7 29. Bg7 Rxg7 30. Qxg7 Kd8 31. h6 Qe8 32. h7 Ng6 33. Rf6 Re7 34. Rxg6 fxg6 35. h8Q Rxg7 36. Qxg7 Bf7 37. Bh3 Kc7 38. Qf6 Kc6 39. Nf1 Qg8 40. Ne3 Qe8 41. a3 Bg8 42. Nd5 Bxd5 43. exd5+ Kc7 44. Be6 a5 45. Kg3 b4 46. Qf7+ Kd8 47. Kg4 bxa3 48. bxa3 Qa4+ 49. Kg5 Qe8 50. Qxe8+ Kxe8 51. Kxg6 c4 52. h5 cxd3 53. cxd3 Kd8 54. Kf6 Kc7 55. Ke7 a4 56. h6 1-0

[Event "Ilo Regional Sur op"]
[Site "Ilo Moquegua"]
[Date "2012.04.05"]
[Round "1"]
[White "Cahuana, Vivian"]
[Black "Santiago Lastra, Nefi"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "1497"]
[BlackElo "2051"]
[PlyCount "36"]
[EventDate "2012.04.05"]
[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 d5 2. exd5 Nf6 3. d4 Qxd5 4. Nc3 Qa5 5. Bd3 e5 6. dxe5 Qxe5+ 7. Qe2 Bd6 8. Bf4 Qxe2+ 9. Ngxe2 Bxf4 10. Nxf4 0-0 11. 0-0 Nbd7 12. Rfe1 Nc5 13. Re7 c6 14. Rd1 Nxd3 15. Nxd3 b6 16. Ne5 c5 17. Nb5 Be6 18. Nc7 Rad8 1/2-1/2

[Event "Ilo Regional Sur op"]
[Site "Ilo Moquegua"]
[Date "2012.04.05"]
[Round "2"]
[White "Santiago Lastra, Nefi"]
[Black "Guevara Luque, Eddie R"]
[Result "1-0"]
[ECO "B11"]
[WhiteElo "2051"]
[BlackElo "1703"]
[PlyCount "43"]
[EventDate "2012.04.05"]
[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. d3 d4 4. Nce2 e5 5. g3 Nf6 6. Bg2 Bd6 7. h3 Qb6 8. a3 Be6 9. f4 Na6 10. Nf3 Qc7 11. 0-0 c5 12. c4 Rb8 13. fxe5 Bxe5 14. Nxe5 Qxe5 15. Bf4 Qh5 16. g4 Bxg4 17. hxg4 Nxg4 18. Qa4+ Ke7 19. Rf3 Rbc8 20. Ng3 Qg6 21. Nf5+ Ke6 22. Bh3 1-0

[Event "Callao op"]
[Site "Callao"]
[Date "2007.08.14"]
[Round "9"]
[White "Santiago Lastra, Nefi"]
[Black "Ramos, Ernesto"]
[Result "1/2-1/2"]
[ECO "A03"]
[WhiteElo "2106"]
[BlackElo "2245"]
[PlyCount "85"]
[EventDate "2007.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 g6 3. d3 Bg7 4. Nbd2 Nc6 5. e3 e5 6. fxe5 Nxe5 7. Nxe5 Bxe5 8. Nf3 Bg4 9. c3 Bxf3 10. Qa4+ c6 11. gxf3 Bf6 12. h4 Qd6 13. Qg4 Nh6 14. Qf4 Qxf4 15. exf4 Nf5 16. Bh3 Bxh4+ 17. Kd1 Ng3 18. Re1+ Kd8 19. f5 Nxf5 20. Rg1 d4 21. Bxf5 gxf5 22. Bg5+ Bxg5 23. Rxg5 Ke7 24. Rxf5 dxc3 25. bxc3 Rad8 26. Kc2 Rd6 27. Ra5 a6 28. Rb1 Rd7 29. Rh5 Kf8 30. Rb4 f6 31. Rf4 Rf7 32. Rfh4 Rg7 33. a4 Kg8 34. Rb4 h6 35. Rbh4 Rg6 36. d4 Kg7 37. f4 Rf8 38. f5 Rg2+ 39. Kd3 Rh8 40. Kc4 Rg5 41. Kc5 Rxh5 42. Rxh5 Rd8 43. a5 1/2-1/2

[Event "Callao op"]
[Site "Callao"]
[Date "2007.08.13"]
[Round "8"]
[White "Zuniga Terrazas, Jorge"]
[Black "Santiago Lastra, Nefi"]
[Result "0-1"]
[ECO "B02"]
[WhiteElo "1990"]
[BlackElo "2106"]
[PlyCount "86"]
[EventDate "2007.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nc3 Nxd5 4. Bc4 Nxc3 5. Qf3 e6 6. dxc3 Bd6 7. Be3 0-0 8. 0-0-0 Bd7 9. h4 Bc6 10. Qh3 Qf6 11. Ne2 Nd7 12. Rhg1 Qe5 13. f4 Qa5 14. g4 Bd5 15. Bxd5 exd5 16. Kb1 Nb6 17. f5 Rfe8 18. Nd4 c5 19. Nb3 Qb5 20. f6 a5 21. Bc1 a4 22. Nd2 Be5 23. fxg7 a3 24. b3 Na4 25. Rg3 c4 26. Rf1 cxb3 27. cxb3 Bxg3 28. Qxg3 Nc5 29. c4 Qc6 30. cxd5 Qxd5 31. Nc4 Qe4+ 32. Ka1 Qd4+ 33. Kb1 Re2 34. Qf3 Qe4+ 35. Qxe4 Nxe4 36. Rf3 Re1 37. Re3 Rxe3 38. Nxe3 Nc3+ 39. Ka1 Ne2 40. Bd2 Rd8 41. Bb4 Rd3 42. Bc5 Nc3 43. h5 Rd2 0-1

[Event "Callao op"]
[Site "Callao"]
[Date "2007.08.12"]
[Round "7"]
[White "Rosales, Pierina"]
[Black "Santiago Lastra, Nefi"]
[Result "0-1"]
[ECO "C01"]
[BlackElo "2106"]
[PlyCount "100"]
[EventDate "2007.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. e3 Bb4+ 4. Nc3 exd4 5. exd4 0-0 6. Nf3 d5 7. c5 b6 8. cxb6 axb6 9. Be2 Bxc3+ 10. bxc3 Ne4 11. Bd2 Ba6 12. 0-0 Bxe2 13. Qxe2 Re8 14. Qd3 Nxd2 15. Qxd2 Nd7 16. Rfe1 Nf6 17. Rxe8+ Qxe8 18. Re1 Qa4 19. Re2 Ne4 20. Qb2 f6 21. Ne1 Qa3 22. Qxa3 Rxa3 23. c4 Ra4 24. cxd5 Nc3 25. Rc2 Nxd5 26. f3 Rxd4 27. Kf2 Kf7 28. g3 c5 29. Ng2 Rd3 30. Ne1 Ra3 31. Rb2 Nb4 32. Ke2 Ke6 33. f4 b5 34. Ng2 Rxa2 35. Rxa2 Nxa2 36. Ne3 c4 37. Kd2 Nb4 38. Kc3 Nd5+ 39. Nxd5 Kxd5 40. Kb4 Kd4 41. Kxb5 c3 42. Kc6 c2 43. Kd6 c1Q 44. Ke7 Kd5 45. Kf7 Qc7+ 46. Kf8 f5 47. h3 Ke6 48. Kg8 g6 49. h4 Kf6 50. h5 Qg7# 0-1

[Event "Callao op"]
[Site "Callao"]
[Date "2007.08.12"]
[Round "6"]
[White "Santiago Lastra, Nefi"]
[Black "Apaza Vasquez, Andras"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2106"]
[PlyCount "136"]
[EventDate "2007.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. c3 d5 6. 0-0 c6 7. Re1 Nbd7 8. Nbd2 e5 9. Nxe5 Nxe5 10. dxe5 Ng4 11. Nf3 Nxe5 12. Nxe5 Bxe5 13. Bh6 Bg7 14. Bxg7 Kxg7 15. e4 dxe4 16. Rxe4 Be6 17. Rd4 Qc7 18. Qa4 a6 19. Re1 Rad8 20. h4 h5 21. Rf4 Rd2 22. c4 Rfd8 23. Qb4 Rd1 24. Qc3+ Kg8 25. Bf3 Rxe1+ 26. Qxe1 Qd6 27. Qa5 Rd7 28. Qg5 Qe7 29. Qxe7 Rxe7 30. Rd4 Kg7 31. b4 Rd7 32. Rxd7 Bxd7 33. a4 Kf6 34. a5 Ke5 35. Be2 Kd4 36. f3 Be6 37. c5 Kc3 38. g4 Kxb4 39. gxh5 gxh5 40. f4 Kxa5 41. Bxh5 Kb4 42. Kf2 a5 43. Ke3 a4 44. f5 Bd5 45. Kd2 f6 46. Kc1 Kxc5 47. Bd1 b5 48. h5 Kd4 49. h6 Bg8 50. Bh5 Kc3 51. Bf7 Bh7 52. Bg6 Bg8 53. Bf7 Bh7 54. Bg6 a3 55. Kb1 b4 56. Bxh7 b3 57. Bg8 a2+ 58. Ka1 b2+ 59. Kxa2 Kc2 60. Bb3+ Kc1 61. h7 b1Q+ 62. Ka3 Qb2+ 63. Kb4 Qd4+ 64. Ka5 Qa7+ 65. Kb4 Qxh7 66. Be6 Qe7+ 67. Kc4 Qd6 68. Bc8 Kd2 0-1

[Event "Callao op"]
[Site "Callao"]
[Date "2007.08.11"]
[Round "5"]
[White "Mamani, Ulises"]
[Black "Santiago Lastra, Nefi"]
[Result "1-0"]
[ECO "A43"]
[WhiteElo "2153"]
[BlackElo "2106"]
[PlyCount "65"]
[EventDate "2007.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. d4 c5 2. d5 e6 3. e4 exd5 4. exd5 d6 5. Nf3 Be7 6. Be2 Bf5 7. 0-0 Nd7 8. c4 Bf6 9. Nc3 Bxc3 10. bxc3 Qa5 11. Bf4 Qa6 12. Bd3 Bxd3 13. Re1+ Be4 14. Rxe4+ Kd8 15. Ng5 Nh6 16. Qe2 Kc7 17. Re7 Rad8 18. Ne4 Nf5 19. Rxf7 Rhf8 20. Nxc5 Rxf7 21. Nxa6+ bxa6 22. c5 Nxc5 23. Qc4 Kd7 24. Re1 Rdf8 25. h4 h5 26. Bc1 Ne7 27. Be3 Rc8 28. Bxc5 Rxc5 29. Qa4+ Kd8 30. Rb1 Nc8 31. Rb8 Kc7 32. Rxc8+ Kxc8 33. Qe8+ 1-0

[Event "Callao op"]
[Site "Callao"]
[Date "2007.08.11"]
[Round "4"]
[White "Santiago Lastra, Nefi"]
[Black "Castaneda, Carlos"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2106"]
[BlackElo "2193"]
[PlyCount "46"]
[EventDate "2007.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. h3 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nxc6 bxc6 7. Bg5 d5 8. a3 Be7 9. e3 0-0 10. Be2 Rb8 11. Qc1 d4 12. Nd1 c5 13. 0-0 Nd5 14. Bxe7 Qxe7 15. Bc4 Rd8 16. Bxd5 Rxd5 17. e4 Rd6 18. f4 exf4 19. Qxf4 Rbb6 20. e5 Rg6 21. Nf2 Rxb2 22. Rab1 Qb7 23. Ne4 Rxb1 0-1

[Event "Callao op"]
[Site "Callao"]
[Date "2007.08.10"]
[Round "3"]
[White "Santiago Lastra, Nefi"]
[Black "Uria, Javier"]
[Result "1-0"]
[ECO "A20"]
[WhiteElo "2106"]
[BlackElo "2304"]
[PlyCount "89"]
[EventDate "2007.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. Nf3 Nc6 2. c4 e5 3. d3 f5 4. Bd2 Nf6 5. Bc3 Bc5 6. e3 Qe7 7. a3 d6 8. b4 Bb6 9. b5 Nd8 10. Be2 e4 11. Nd4 0-0 12. Qb3 Kh8 13. Ra2 f4 14. dxe4 Nxe4 15. Bf3 fxe3 16. fxe3 Nc5 17. Qd1 Qxe3+ 18. Re2 Qd3 19. Qxd3 Nxd3+ 20. Kd2 Ne5 21. Rhe1 Nxc4+ 22. Kc2 Ne5 23. Nd2 Ndf7 24. Bd5 Bg4 25. N2f3 c6 26. bxc6 bxc6 27. Bxf7 Nxf7 28. h3 Bxd4 29. Bxd4 Bf5+ 30. Kc1 c5 31. Bb2 d5 32. Re7 d4 33. Rc7 Rac8 34. Rxa7 Kg8 35. Ree7 h6 36. g4 Bd3 37. Kd2 Bc4 38. g5 Bd5 39. Ne5 hxg5 40. Ng6 Rfd8 41. a4 Ba2 42. Ba3 c4 43. Re2 c3+ 44. Kc1 Bc4 45. Ne7+ 1-0

[Event "Callao op"]
[Site "Callao"]
[Date "2007.08.09"]
[Round "2"]
[White "Contreras, Jose"]
[Black "Santiago Lastra, Nefi"]
[Result "1-0"]
[ECO "A52"]
[WhiteElo "2201"]
[BlackElo "2106"]
[PlyCount "101"]
[EventDate "2007.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Bc5 5. e3 Nc6 6. Be2 Ngxe5 7. 0-0 0-0 8. Nbd2 Re8 9. Nb3 Bf8 10. Nbd4 Nxf3+ 11. Nxf3 Qf6 12. Rb1 h5 13. Bd2 h4 14. Bc3 Qh6 15. h3 a5 16. Nd4 Nxd4 17. Qxd4 Ra6 18. Rfd1 c5 19. Qd5 Rd6 20. Qf3 b6 21. Rxd6 Bxd6 22. Rd1 Bc7 23. Bd3 Kf8 24. Bf5 Rd8 25. b3 Qg5 26. Be4 Be5 27. Bd5 f6 28. Be1 f5 29. Qe2 Bf6 30. Qf3 d6 31. Bb7 Be6 32. Bd5 Re8 33. Bxe6 Rxe6 34. Qa8+ Re8 35. Qc6 Be7 36. Rd5 Qh5 37. Qd7 g6 38. Bc3 Qh6 39. Qe6 Qh7 40. Bf6 Bxf6 41. Qxf6+ Qf7 42. Qxd6+ Kg7 43. Qxb6 f4 44. Qxc5 fxe3 45. Qd4+ Kg8 46. fxe3 Rf8 47. Qxh4 a4 48. Qg3 axb3 49. axb3 Ra8 50. Rd6 Ra1+ 51. Kh2 1-0

[Event "Callao op"]
[Site "Callao"]
[Date "2007.08.08"]
[Round "1"]
[White "Cabrera Huaman, Andres"]
[Black "Santiago Lastra, Nefi"]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "2268"]
[BlackElo "2106"]
[PlyCount "85"]
[EventDate "2007.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 e6 5. Nc3 exd5 6. Nxd5 Bb7 7. Nxf6+ Qxf6 8. Nf3 Be7 9. g3 Bxf3 10. exf3 Qe6+ 11. Be2 0-0 12. 0-0 d5 13. f4 Rd8 14. Re1 Qd6 15. Bf3 Nd7 16. Qxd5 Rab8 17. Qxd6 Bxd6 18. Bc6 g6 19. Bd2 Nf8 20. Ba5 Rdc8 21. Rad1 Bc7 22. Bc3 Rd8 23. a4 Ne6 24. a5 Rxd1 25. Rxd1 Rd8 26. Rxd8+ Nxd8 27. Bd5 Kf8 28. b6 axb6 29. a6 Bb8 30. Kf1 Ke7 31. Ke2 Ba7 32. Kd3 b5 33. b3 Kd6 34. Bg2 Nc6 35. h4 c4+ 36. bxc4 bxc4+ 37. Kxc4 Bxf2 38. g4 f5 39. gxf5 gxf5 40. h5 Be3 41. Bxc6 Kxc6 42. Be5 Ba7 43. Bd4 1-0

[Event "American Continental 04th"]
[Site "Cali"]
[Date "2007.07.20"]
[Round "11"]
[White "Renteria, Jakson Alexander"]
[Black "Santiago Lastra, Nefi"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2252"]
[BlackElo "2106"]
[PlyCount "91"]
[EventDate "2007.07.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Bc4 Nf6 5. Nf3 Bg4 6. Bxf7+ Kxf7 7. Ne5+ Ke8 8. Nxg4 Nc6 9. Nxf6+ exf6 10. Be3 Qd5 11. 0-0 Rd8 12. Nc3 Qf5 13. Re1 Kf7 14. Qe2 Bd6 15. Qc4+ Kg6 16. Nb5 h5 17. Nxd6 Rxd6 18. c3 h4 19. h3 a6 20. a4 Rc8 21. Rad1 b5 22. axb5 axb5 23. Qe2 Ra8 24. Ra1 Ra5 25. Qg4+ Qxg4 26. hxg4 Rd7 27. f3 Kf7 28. Bf2 g5 29. g3 h3 30. Kh2 Rxa1 31. Rxa1 Re7 32. Re1 Na5 33. Rxe7+ Kxe7 34. d5 Nb3 35. f4 Kd6 36. fxg5 fxg5 37. Be3 Kxd5 38. Bxg5 c5 39. Kxh3 c4 40. Be3 Na5 41. Kh4 Nc6 42. Kh5 Ne5 43. g5 Ke6 44. g6 Ke7 45. Bc5+ Ke6 46. Kh6 1-0

[Event "American Continental 04th"]
[Site "Cali"]
[Date "2007.07.19"]
[Round "10"]
[White "Juarez Flores, Gustavo Enrique"]
[Black "Santiago Lastra, Nefi"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2204"]
[BlackElo "2106"]
[PlyCount "98"]
[EventDate "2007.07.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. h3 Nf6 5. Nf3 c5 6. Bb5+ Bd7 7. Bxd7+ Nbxd7 8. 0-0 e6 9. Nc3 cxd4 10. Qxd4 Bc5 11. Qh4 0-0 12. Ne4 Nxe4 13. Qxe4 Qb6 14. b3 Nf6 15. Qh4 Qb4 16. c4 Rfd8 17. Bb2 Be7 18. Rad1 a5 19. Ng5 h6 20. Ne4 Nxe4 21. Qxe4 a4 22. Qg4 Bf8 23. Rxd8 Rxd8 24. Rd1 Rd2 25. Rxd2 Qxd2 26. Qd4 Qc2 27. Qc3 Qb1+ 28. Kh2 Qxa2 29. b4 f6 30. c5 Qd5 31. Ba3 Qc6 32. Qe3 Kf7 33. Kg1 Qb5 34. Qe4 Be7 35. g4 Qd7 36. Kg2 g6 37. Kf3 Qd1+ 38. Kg2 Qd5 39. Kf3 Qb3+ 40. Qe3 f5 41. gxf5 exf5 42. Ke2 Bf6 43. Qd3 Qa2+ 44. Kf1 Qa1+ 45. Ke2 Qe5+ 46. Kd1 Ke6 47. Qb5 Qd5+ 48. Ke1 Bc3+ 49. Kf1 Qh1+ 0-1

[Event "American Continental 04th"]
[Site "Cali"]
[Date "2007.07.18"]
[Round "9"]
[White "Santiago Lastra, Nefi"]
[Black "Avalos Parra, Joao"]
[Result "0-1"]
[ECO "A12"]
[WhiteElo "2106"]
[BlackElo "2267"]
[PlyCount "114"]
[EventDate "2007.07.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. Bb2 Bg4 5. e3 Nbd7 6. cxd5 cxd5 7. h3 Bf5 8. Nh4 Bg6 9. Nxg6 hxg6 10. Bb5 a6 11. Be2 e5 12. 0-0 Bd6 13. Ba3 Bb8 14. Qc2 Ba7 15. Rc1 Bb6 16. Bd3 e4 17. Bf1 Ne5 18. Qb2 Nfd7 19. d4 exd3 20. g3 Qf6 21. Nd2 g5 22. Bg2 g4 23. hxg4 Qh6 24. Nf1 Qe6 25. g5 f6 26. g6 Qg4 27. f4 Nxg6 28. Qf2 Qf5 29. Qf3 Ne7 30. Rd1 Rd8 31. Rac1 d4 32. e4 Qa5 33. Bxe7 Kxe7 34. Rxd3 Nc5 35. e5 Nxd3 36. exf6+ Kxf6 37. Qxd3 Rd7 38. g4 Re8 39. g5+ Kf7 40. Qc4+ Kf8 41. b4 Qf5 42. Ng3 Qg4 43. Kh2 Rc7 44. Qd5 Rxc1 45. Qd6+ Re7 46. Be4 Rc3 47. Qb8+ Re8 48. Qd6+ Kg8 49. Bd5+ Kh8 50. f5 Qxg3+ 51. Qxg3 Rxg3 52. Kxg3 d3 53. f6 gxf6 54. gxf6 d2 55. Bb3 Re3+ 56. Kf4 Rxb3 57. f7 Kg7 0-1

[Event "American Continental 04th"]
[Site "Cali"]
[Date "2007.07.17"]
[Round "8"]
[White "Santiago Lastra, Nefi"]
[Black "Martinez Zuluaica, Julian"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2106"]
[BlackElo "2251"]
[PlyCount "52"]
[EventDate "2007.07.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. h3 e5 2. d4 exd4 3. Nf3 Nc6 4. Nxd4 d5 5. Nxc6 bxc6 6. g3 Nf6 7. Bg2 Bc5 8. 0-0 0-0 9. c4 Re8 10. cxd5 cxd5 11. Bg5 Be6 12. Qc2 Be7 13. Rd1 Qd7 14. Nc3 c6 15. Kh2 Bf5 16. e4 Bg6 17. Qa4 Nxe4 18. Nxd5 Bxg5 19. Nf6+ Nxf6 20. Rxd7 Nxd7 21. Qg4 Nf6 22. Qxg5 Be4 23. Re1 Bxg2 24. Rxe8+ Rxe8 25. Kxg2 Re2 26. Qc1 h6 1-0

[Event "American Continental 04th"]
[Site "Cali"]
[Date "2007.07.16"]
[Round "7"]
[White "Montenegro, Rolando"]
[Black "Santiago Lastra, Nefi"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2227"]
[BlackElo "2106"]
[PlyCount "60"]
[EventDate "2007.07.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 c6 4. dxc6 Nxc6 5. Nf3 e5 6. c3 exd4 7. Nxd4 Bc5 8. Qe2+ Kf8 9. Nxc6 bxc6 10. Be3 Bb6 11. Nd2 Be6 12. 0-0-0 Ng4 13. Nc4 Bxe3+ 14. Nxe3 Qg5 15. Kb1 Qa5 16. c4 Bf5+ 17. Ka1 Re8 18. Qf3 Nxe3 19. fxe3 Be4 20. Qf4 h5 21. Be2 Rh6 22. Rhf1 Rf6 23. Qh4 Rxf1 24. Bxf1 Bc2 25. Qe1 Qc5 26. Rd2 Rxe3 27. Rd8+ Ke7 28. Qd2 Bf5 29. Rg8 Qd4 30. Qc1 Qe5 0-1

[Event "American Continental 04th"]
[Site "Cali"]
[Date "2007.07.14"]
[Round "5"]
[White "Rodriguez M, Juan Andres"]
[Black "Santiago Lastra, Nefi"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2009"]
[BlackElo "2106"]
[PlyCount "92"]
[EventDate "2007.07.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. c4 c6 4. dxc6 Nxc6 5. Nf3 e5 6. d3 e4 7. dxe4 Qxd1+ 8. Kxd1 Nxe4 9. Ke1 Bb4+ 10. Nbd2 Bg4 11. Bd3 Nc5 12. Bc2 0-0-0 13. h3 Bxf3 14. gxf3 Nd4 15. Bd1 Nd3+ 16. Kf1 Nxc1 17. Rxc1 Bxd2 18. Rb1 Rd6 19. b4 Re8 20. f4 Bxf4 21. Ba4 Re5 22. Re1 Nf3 23. Rxe5 Nxe5 24. c5 Rd4 25. Bc2 g6 26. b5 Rc4 27. Bb3 Rxc5 28. Kg2 Rxb5 29. Rc1+ Bxc1 30. Kf1 Rxb3 31. axb3 Kc7 32. Ke2 Bf4 33. Kd1 b5 34. b4 Nd3 35. Ke2 Nxb4 36. Kf3 Nd5 37. Ke4 Kc6 38. Kd4 a5 39. Kd3 Kc5 40. Kc2 Kd4 41. Kb2 Kd3 42. Kb3 a4+ 43. Ka2 Kc2 44. f3 Bc1 45. f4 Nc3+ 46. Ka1 Bb2# 0-1

[Event "American Continental 04th"]
[Site "Cali"]
[Date "2007.07.13"]
[Round "4"]
[White "Santiago Lastra, Nefi"]
[Black "Panesso Rivera, Henry"]
[Result "0-1"]
[ECO "A49"]
[WhiteElo "2106"]
[BlackElo "2143"]
[PlyCount "128"]
[EventDate "2007.07.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. h3 d6 6. d4 Nbd7 7. Re1 e5 8. e4 c6 9. Nbd2 Qe7 10. c3 b6 11. a4 a5 12. b3 Bb7 13. Ba3 c5 14. d5 Ne8 15. Nh2 f5 16. f3 Bh6 17. Bc1 fxe4 18. Nxe4 Bxc1 19. Rxc1 Ndf6 20. Nxf6+ Qxf6 21. Ng4 Qg7 22. Qd2 h5 23. Nf2 Nf6 24. h4 Nxd5 25. f4 Nf6 26. fxe5 dxe5 27. Bxb7 Qxb7 28. Qg5 Qf7 29. Rcd1 Nh7 30. Qe3 Rae8 31. Rd6 Re6 32. Rxe6 Qxe6 33. Qxe5 Qxe5 34. Rxe5 Rf3 35. Ne4 Kf7 36. Kg2 Rd3 37. Kf2 Rd1 38. Ke2 Rb1 39. Kd3 Rxb3 40. Kc4 Rb1 41. Nd6+ Kf6 42. Re3 g5 43. Rf3+ Ke6 44. Ne8 gxh4 45. Ng7+ Ke7 46. Nf5+ Ke6 47. Ng7+ Ke7 48. Nf5+ Kd7 49. gxh4 Nf6 50. Re3 Rf1 51. Re7+ Kd8 52. Re5 Ng4 53. Rd5+ Kc7 54. Kb5 Nf6 55. Re5 Nd7 56. Rd5 Rb1+ 57. Kc4 b5+ 58. axb5 Nb6+ 59. Kxc5 Nxd5 60. Kxd5 Rxb5+ 61. Ke4 Rxf5 62. Kxf5 a4 63. Kg5 a3 64. Kxh5 a2 0-1

[Event "American Continental 04th"]
[Site "Cali"]
[Date "2007.07.12"]
[Round "3"]
[White "Mateus, Andre"]
[Black "Santiago Lastra, Nefi"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2194"]
[BlackElo "2106"]
[PlyCount "99"]
[EventDate "2007.07.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Bb5+ Bd7 4. Bc4 b5 5. Bb3 Bg4 6. f3 Bf5 7. Ne2 Nxd5 8. Nd4 Qd7 9. Nxf5 Qxf5 10. 0-0 e6 11. Bxd5 Qxd5 12. Nc3 Bc5+ 13. Kh1 Qd7 14. Qe2 c6 15. a4 b4 16. Ne4 Be7 17. b3 f5 18. Nf2 Bf6 19. Rb1 a5 20. Re1 Kf7 21. Nd3 Qd6 22. Bb2 Nd7 23. f4 h5 24. Be5 Bxe5 25. Nxe5+ Nxe5 26. Qxe5 Rhd8 27. d3 c5 28. Qe2 g6 29. Qf3 Qd5 30. Qg3 Ra6 31. Re5 Qd4 32. Rbe1 Rd5 33. Qg5 Qc3 34. R5e2 Qf6 35. Qh6 Rdd6 36. Re5 Rac6 37. Kg1 Kg8 38. R1e3 Rd7 39. Rg3 Rg7 40. Rg5 Kf7 41. Qh8 Rg8 42. Qxf6+ Kxf6 43. h4 Rd8 44. Rg3 Rd4 45. Rf3 Rxf4 46. Rxe6+ Rxe6 47. Rxf4 Ke5 48. g3 Kd5 49. Kf2 Re5 50. Rc4 1/2-1/2

[Event "Arequipa Cup 5th"]
[Site "Arequipa"]
[Date "2005.02.06"]
[Round "5.7"]
[White "Cornejo, Max"]
[Black "Santiago Lastra, Nefi"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2229"]
[PlyCount "59"]
[EventDate "2005.02.04"]
[EventType "swiss (rapid)"]
[EventRounds "6"]
[EventCountry "PER"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Bb5+ Bd7 4. Be2 c6 5. dxc6 Nxc6 6. d4 e5 7. dxe5 Ne4 8. Be3 Qa5+ 9. c3 0-0-0 10. Qc1 Nxe5 11. Nf3 Bd6 12. Nd4 Rhe8 13. 0-0 Ng6 14. Nd2 Nxd2 15. Qxd2 Bc6 16. Bg4+ f5 17. Bxf5+ Kc7 18. Bxg6 hxg6 19. Bf4 Re4 20. Bxd6+ Rxd6 21. Rad1 Qd5 22. Nb5+ Qxb5 23. Qxd6+ Kb6 24. Qd8+ Ka6 25. Qd3 Qxd3 26. Rxd3 Bb5 27. Rd6+ b6 28. Ra1 g5 29. a4 Bc4 30. Rd4 1-0

[Event "Arequipa Cup 5th"]
[Site "Arequipa"]
[Date "2005.02.05"]
[Round "1.17"]
[White "Calisaya, Angel"]
[Black "Santiago Lastra, Nefi"]
[Result "1/2-1/2"]
[ECO "A16"]
[WhiteElo "1842"]
[PlyCount "56"]
[EventDate "2005.02.04"]
[EventType "swiss (rapid)"]
[EventRounds "6"]
[EventCountry "PER"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. d3 c6 6. c4 d6 7. Nc3 h6 8. e4 Qa5 9. d4 Qh5 10. e5 Ne8 11. Re1 Bh3 12. Qe2 Na6 13. Ne4 d5 14. cxd5 cxd5 15. Nc5 Nxc5 16. dxc5 Bxg2 17. Kxg2 Rc8 18. Be3 Nc7 19. Rac1 Rfd8 20. Qd3 Ne6 21. Bd4 Qg4 22. Qe3 g5 23. h3 Qf5 24. Rc3 h5 25. Rb3 Rc7 26. Rc1 g4 27. hxg4 hxg4 28. Nh4 Qe4+ 1/2-1/2

[Event "Arequipa Cup 5th"]
[Site "Arequipa"]
[Date "2005.02.05"]
[Round "3.5"]
[White "Esplana, Christian"]
[Black "Santiago Lastra, Nefi"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2329"]
[PlyCount "39"]
[EventDate "2005.02.04"]
[EventType "swiss (rapid)"]
[EventRounds "6"]
[EventCountry "PER"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Bb5+ Bd7 4. Be2 c6 5. dxc6 Nxc6 6. d4 e5 7. dxe5 Qa5+ 8. Qd2 Nb4 9. exf6 Nxc2+ 10. Kf1 Qxd2 11. Bxd2 Bc6 12. Bc3 0-0-0 13. Nf3 Bc5 14. Nbd2 Nxa1 15. fxg7 Rhe8 16. b4 Bd4 17. Nxd4 Rxd4 18. Bxd4 Nc2 19. Nc4 Nxd4 20. Nd6+ 1-0

[Event "Arequipa Cup 5th"]
[Site "Arequipa"]
[Date "2005.02.05"]
[Round "4.10"]
[White "Santiago Lastra, Nefi"]
[Black "Pazos, Marco"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "43"]
[EventDate "2005.02.04"]
[EventType "swiss (rapid)"]
[EventRounds "6"]
[EventCountry "PER"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 c5 4. c3 Nc6 5. d4 e6 6. 0-0 b6 7. Ne5 Bb7 8. Qa4 Qc8 9. b4 cxb4 10. cxb4 Bd6 11. Nxc6 Qxc6 12. b5 Qd7 13. Ba3 0-0 14. Bxd6 Qxd6 15. Nd2 a6 16. Nc4 Qd8 17. Ne5 axb5 18. Qxb5 Ba6 19. Qb2 Nd7 20. Nc6 Qe8 21. Rfe1 Bc4 22. e4 1-0

[Event "Arequipa Regional"]
[Site "Arequipa"]
[Date "2003.06.11"]
[Round "1"]
[White "Castro, Rodrigo"]
[Black "Santiago Lastra, Nefi"]
[Result "0-1"]
[ECO "B02"]
[PlyCount "88"]
[EventDate "2003.06.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "PER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nf3 Nxd5 4. Nc3 Nxc3 5. dxc3 Qxd1+ 6. Kxd1 Bg4 7. Be2 Nc6 8. Bf4 0-0-0+ 9. Ke1 Bf5 10. Rd1 Bxc2 11. Rxd8+ Nxd8 12. Kd2 Bg6 13. Ne5 f6 14. Nxg6 hxg6 15. Bd3 g5 16. Be3 a6 17. Re1 Rxh2 18. Be4 e6 19. Ke2 Bd6 20. Rd1 f5 21. Bc2 Rxg2 22. Kf3 Rg4 23. Re1 Kd7 24. Bd4 Rf4+ 25. Kg2 Rg4+ 26. Kf3 g6 27. Bf6 Be7 28. Rd1+ Ke8 29. Bxe7 Kxe7 30. Bb3 c5 31. c4 Nc6 32. Rh1 Ne5+ 33. Ke2 Re4+ 34. Kf1 Rh4 35. Rg1 Kf6 36. Ke2 Re4+ 37. Kf1 Nxc4 38. Bc2 Nd2+ 39. Kg2 Rg4+ 40. Kh1 Rb4 41. b3 Nf3 42. a3 Rh4+ 43. Kg2 Rg4+ 44. Kh1 Rxg1# 0-1

