[Event "Cochabamba GP op 4th"]
[Site "Cochabamba"]
[Date "2023.09.09"]
[Round "5"]
[White "Acho Yujra, Crhistopher Lucas"]
[Black "Bonifacio Sarmiento, Derek Mauricio"]
[Result "1/2-1/2"]
[ECO "B32"]
[WhiteElo "1090"]
[BlackElo "1203"]
[PlyCount "27"]
[EventDate "2023.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nxd4 5. Qxd4 d6 6. f4 e6 7. Bc4 Ne7 8. 0-0 Nc6 9. Bb5 Bd7 10. Bxc6 Bxc6 11. Nc3 f6 12. Qe3 Be7 13. Bd2 0-0 14. f5 1/2-1/2

[Event "Cochabamba GP op 4th"]
[Site "Cochabamba"]
[Date "2023.09.09"]
[Round "6"]
[White "Bonifacio Sarmiento, Derek Mauricio"]
[Black "Rios Vargas, Esteban Santiago"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1203"]
[BlackElo "1028"]
[PlyCount "137"]
[EventDate "2023.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[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. d3 h6 5. Nc3 Nf6 6. 0-0 d6 7. h3 g5 8. Be3 g4 9. hxg4 Bxg4 10. Bxc5 dxc5 11. Bb5 Qd6 12. Bxc6+ Qxc6 13. Nxe5 Qe6 14. Nxg4 Nxg4 15. Nd5 0-0-0 16. Ne3 h5 17. Qf3 Kb8 18. Qf5 Qd6 19. g3 Nxe3 20. fxe3 Qxg3+ 21. Kh1 Qh4+ 22. Kg2 Rdg8+ 23. Kf3 Qh2 24. Rf2 Qg3+ 25. Ke2 Qg4+ 26. Qxg4 hxg4 27. Rg1 Kc8 28. Rxf7 g3 29. Rg2 Rh1 30. Rf1 Rh7 31. Rfg1 Rhg7 32. d4 cxd4 33. exd4 Kd7 34. Kd3 Ke6 35. Rf1 Rg5 36. Rf3 R8g6 37. b3 b6 38. a3 c5 39. dxc5 bxc5 40. a4 Ke5 41. Ke3 Rg4 42. Kd3 Rxe4 43. Rfxg3 Rd6+ 44. Kc3 Rdd4 45. Rg5+ Kd6 46. Rg6+ Kc7 47. Rg7+ Kd6 48. R2g6+ Ke5 49. Re7+ Kf5 50. Rxe4 Kxe4 51. Rc6 Rd5 52. Kc4 Rd2 53. c3 Rh2 54. Rxc5 Ke3 55. Kb4 Rh4+ 56. Rc4 Rh8 57. Rc7 Rh4+ 58. c4 Kd3 59. Rxa7 Kc2 60. Rb7 Rh8 61. a5 Rh3 62. Ka4 Rh1 63. b4 Rh5 64. a6 Kc3 65. a7 Rh1 66. Kb5 Rh5+ 67. c5 Rh8 68. Rb8 Rxb8+ 69. axb8Q 1-0

[Event "Cochabamba GP op 4th"]
[Site "Cochabamba"]
[Date "2023.09.08"]
[Round "3"]
[White "Bonifacio Sarmiento, Derek Mauricio"]
[Black "Villanueva Flores, Eliel"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "1203"]
[BlackElo "1017"]
[PlyCount "82"]
[EventDate "2023.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[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. d3 h6 6. Be3 Bb6 7. Nbd2 d6 8. h3 Be6 9. Bb5 0-0 10. Bxc6 bxc6 11. d4 Nd7 12. Re1 Re8 13. dxe5 dxe5 14. Nf1 Qe7 15. Qe2 Rad8 16. b3 Qb4 17. Ng3 Nc5 18. Nxe5 Nxe4 19. Nxc6 Nxg3 20. fxg3 Qc3 21. Bxb6 Qxc6 22. Bxa7 Bxh3 23. Qf2 Be6 24. Qc5 Qxc5+ 25. Bxc5 Rd2 26. c3 Red8 27. c4 Ra8 28. a3 Rd3 29. Re3 Rxe3 30. Bxe3 Kf8 31. Kf2 Ke7 32. Bf4 Kd7 33. Ke3 Kc6 34. Kd4 f6 35. Re1 Kd7 36. a4 c6 37. Kc3 g5 38. Rd1+ Ke7 39. Be3 h5 40. Rh1 Bg4 41. Ra1 Be6 1/2-1/2

[Event "Cochabamba GP op 4th"]
[Site "Cochabamba"]
[Date "2023.09.07"]
[Round "2"]
[White "Bonifacio Sarmiento, Derek Mauricio"]
[Black "Montevilla Cahuasa, Amanda"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "1203"]
[BlackElo "1055"]
[PlyCount "154"]
[EventDate "2023.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. b3 Bg7 5. Bb2 Nf6 6. Bd3 0-0 7. 0-0 d6 8. h3 Bd7 9. Re1 a6 10. a3 b5 11. Rb1 Be6 12. e5 dxe5 13. Nxe5 Nxe5 14. Rxe5 Qd6 15. Re1 b4 16. axb4 cxb4 17. Ne4 Nxe4 18. Bxe4 Rad8 19. Bxg7 Kxg7 20. Bd3 a5 21. Ra1 Ra8 22. Qe2 Kg8 23. Qe5 Qd8 24. Ra2 Qb6 25. Rea1 f6 26. Qb5 Qxb5 27. Bxb5 Rfc8 28. Bd3 Rc5 29. Be4 Ra7 30. d4 Rb5 31. Bd3 Rd5 32. Bc4 Rd6 33. Bxe6+ Rxe6 34. Rxa5 Rxa5 35. Rxa5 Re1+ 36. Kh2 Re2 37. f3 Rxc2 38. Ra4 Rd2 39. Rxb4 Kf7 40. Kg1 Ke6 41. Kf1 Kd5 42. Rb7 Kd6 43. Rb8 Rxd4 44. Rd8+ Ke5 45. Rxd4 Kxd4 46. Ke2 Kc3 47. Ke3 Kxb3 48. Kd4 Kb4 49. Kd5 Kb5 50. Ke6 f5 51. Kxe7 Kc4 52. Kf6 Kd3 53. Kg5 Ke3 54. f4 Kf2 55. Kh6 Kxg2 56. Kxh7 Kxh3 57. Kxg6 Kg4 58. Kf6 Kxf4 59. Ke6 Ke4 60. Kf6 f4 61. Kg5 f3 62. Kf6 f2 63. Ke6 f1Q 64. Kd6 Qf5 65. Kc6 Qd5+ 66. Kb6 Ke5 67. Kc7 Qd6+ 68. Kb7 Ke6 69. Ka7 Qc6 70. Kb8 Kd7 71. Ka7 Kd8 72. Kb8 Qb6+ 73. Ka8 Qe6 74. Kb7 Kd7 75. Ka7 Kc7 76. Ka8 Qe8+ 77. Ka7 Qa4# 0-1

[Event "Cochabamba GP op 4th"]
[Site "Cochabamba"]
[Date "2023.09.07"]
[Round "1"]
[White "Cueto Chajtur, Johny"]
[Black "Bonifacio Sarmiento, Derek Mauricio"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "2117"]
[BlackElo "1203"]
[PlyCount "43"]
[EventDate "2023.09.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. h3 Nc6 5. Bd3 g6 6. 0-0 Bg7 7. Bc2 0-0 8. Re1 b6 9. d4 cxd4 10. cxd4 e6 11. Nc3 Bb7 12. Bf4 Re8 13. Qd2 e5 14. Bg5 Qd7 15. Ba4 exd4 16. Nxd4 a6 17. Rad1 Rad8 18. Nd5 b5 19. Nxf6+ Bxf6 20. Bxf6 bxa4 21. Qh6 Qe7 22. Qg7# 1-0

[Event "Cochabamba op 6th"]
[Site "Cochabamba"]
[Date "2023.03.03"]
[Round "3"]
[White "Bonifacio Sarmiento, Derek Mauricio"]
[Black "Campero, Ronald"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1006"]
[BlackElo "2082"]
[PlyCount "84"]
[EventDate "2023.03.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 d6 2. Nf3 Nf6 3. Nc3 c6 4. d4 Bg4 5. h3 Bh5 6. Be2 e6 7. Bg5 h6 8. Bxf6 Qxf6 9. e5 Qd8 10. g4 Bg6 11. exd6 Bxd6 12. Bd3 Qf6 13. Bxg6 Qxg6 14. Ne5 Bxe5 15. dxe5 Nd7 16. Qe2 Qg5 17. Qe4 Qxe5 18. Qxe5 Nxe5 19. 0-0-0 Rd8 20. Rxd8+ Kxd8 21. Rd1+ Ke7 22. Ne4 b6 23. f4 Nd7 24. h4 Nb8 25. c3 Rd8 26. Rxd8 Kxd8 27. Kd2 Ke7 28. Ke3 Nd7 29. b4 Nf6 30. Nxf6 Kxf6 31. Ke4 Ke7 32. c4 Kd6 33. Kd4 f6 34. c5+ bxc5+ 35. bxc5+ Ke7 36. a4 g6 37. g5 hxg5 38. hxg5 e5+ 39. Ke4 exf4 40. gxf6+ Kxf6 41. Kxf4 Ke6 42. Ke4 a5 0-1

[Event "Cochabamba op 6th"]
[Site "Cochabamba"]
[Date "2023.03.02"]
[Round "1"]
[White "Bonifacio Sarmiento, Derek Mauricio"]
[Black "Achocalla Huaipara, Pavel Andres"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1006"]
[BlackElo "1445"]
[PlyCount "42"]
[EventDate "2023.03.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. d4 Nf6 5. Bd3 Bg4 6. Be3 Nc6 7. Nc3 e6 8. h3 Bh5 9. a3 Be7 10. Qe2 Rc8 11. g4 Bg6 12. 0-0-0 a6 13. Ne5 Na5 14. f4 Bxa3 15. bxa3 Rxc3 16. Bxg6 hxg6 17. Rd3 Qc7 18. Rxc3 Qxc3 19. Kd1 Ne4 20. Bd2 Qa1+ 21. Bc1 Nc3+ 0-1

[Event "Cochabamba op 6th"]
[Site "Cochabamba"]
[Date "2023.03.02"]
[Round "2"]
[White "Tarcaya Vargas, Cecilia"]
[Black "Bonifacio Sarmiento, Derek Mauricio"]
[Result "0-1"]
[ECO "D04"]
[WhiteElo "1267"]
[BlackElo "1006"]
[PlyCount "54"]
[EventDate "2023.03.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. b3 Nbd7 5. Bb2 e6 6. Nbd2 Bd6 7. Ne5 0-0 8. Bd3 cxd4 9. exd4 Qc7 10. f4 Bb4 11. 0-0 b6 12. a3 Bxd2 13. Qxd2 Nxe5 14. fxe5 Ne4 15. Qf4 Bb7 16. Rf3 h6 17. Re1 Rac8 18. Bc1 Qc3 19. Bxe4 Qxe1+ 20. Rf1 Qxe4 21. Qg3 Qxd4+ 22. Be3 Qe4 23. Bxh6 Qg6 24. Be3 Qxg3 25. hxg3 Rxc2 26. b4 Rc3 27. Bd2 Rxa3 0-1

[Event "BOL-ch U12"]
[Site "Cochabamba"]
[Date "2023.01.14"]
[Round "5"]
[White "Bonifacio Sarmiento, Derek Mauricio"]
[Black "Marcoz Orellana, Matias Alexis"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1006"]
[BlackElo "1065"]
[PlyCount "32"]
[EventDate "2023.01.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[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. d3 d6 5. Ng5 Be6 6. Bxe6 fxe6 7. Nxe6 Qe7 8. Nxc5 dxc5 9. Be3 Nf6 10. Nc3 0-0 11. Qd2 a6 12. Bg5 Qe6 13. Bxf6 Qxf6 14. Nd5 Qd6 15. 0-0 Ne7 16. Nxe7+ Qxe7 0-1

[Event "BOL-ch U12"]
[Site "Cochabamba"]
[Date "2023.01.14"]
[Round "4"]
[White "Diaz Villamil, Diego Gonzalo"]
[Black "Bonifacio Sarmiento, Derek Mauricio"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1139"]
[BlackElo "1006"]
[PlyCount "31"]
[EventDate "2023.01.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[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 Nxd4 6. Nxe5 0-0 7. b4 Bb6 8. Bb2 Nc6 9. Ng4 Nxg4 10. Qxg4 Bd4 11. Bxd4 Nxd4 12. Bd3 Nc6 13. a3 d5 14. Qh5 dxe4 15. Bxe4 Qd4 16. Qxh7# 1-0

[Event "BOL-ch U12"]
[Site "Cochabamba"]
[Date "2023.01.14"]
[Round "3"]
[White "Fernandez Rocha, Mauro Alejandro"]
[Black "Bonifacio Sarmiento, Derek Mauricio"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1129"]
[BlackElo "1006"]
[PlyCount "89"]
[EventDate "2023.01.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nc6 3. e3 Nf6 4. Bd3 e6 5. Nf3 Bd6 6. Bg3 0-0 7. Nbd2 Re8 8. 0-0 e5 9. dxe5 Nxe5 10. Nxe5 Bxe5 11. Bxe5 Rxe5 12. Nf3 Re8 13. h3 Ne4 14. Bxe4 dxe4 15. Qxd8 Rxd8 16. Nd4 c5 17. Nb3 b6 18. Rad1 Be6 19. a3 Kf8 20. Nd2 f5 21. f3 exf3 22. Nxf3 Ke7 23. Ne5 Rd5 24. Nf3 Rad8 25. Rxd5 Rxd5 26. Ng5 h6 27. Nxe6 Kxe6 28. Rf2 Ke5 29. Re2 b5 30. Kf2 g5 31. c3 a5 32. Kf3 Rd3 33. Kf2 h5 34. g3 Ke4 35. h4 g4 36. Re1 b4 37. axb4 axb4 38. cxb4 cxb4 39. Re2 b3 40. Re1 Rd2+ 41. Re2 Rc2 42. Ke1 Kd3 43. Rxc2 bxc2 44. Kf2 c1Q 45. b4 0-1

[Event "BOL-ch U12"]
[Site "Cochabamba"]
[Date "2023.01.13"]
[Round "2"]
[White "Bonifacio Sarmiento, Derek Mauricio"]
[Black "Saramani Escobar, Erik Dorian"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1006"]
[PlyCount "61"]
[EventDate "2023.01.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[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 d6 4. d3 Bg4 5. h3 Bxf3 6. Qxf3 Nf6 7. Bg5 h6 8. Bxf6 Qxf6 9. Qxf6 gxf6 10. Nc3 Nd4 11. 0-0-0 a6 12. Nd5 0-0-0 13. Nxf6 b5 14. Bxf7 Be7 15. Ng4 Rd7 16. c3 Nc6 17. Be6 Bg5+ 18. Kb1 h5 19. Ne3 Rf8 20. Nf5 Kd8 21. Bxd7 Kxd7 22. h4 Bd8 23. Rhg1 Bf6 24. g4 Rg8 25. gxh5 Rxg1 26. Rxg1 Ke6 27. h6 Nd8 28. Rg8 Kf7 29. h7 Ke6 30. h8Q Bxh8 31. Rxh8 1-0

[Event "BOL-ch U12"]
[Site "Cochabamba"]
[Date "2023.01.13"]
[Round "1"]
[White "Salazar Salinas, Rodrigo"]
[Black "Bonifacio Sarmiento, Derek Mauricio"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1455"]
[BlackElo "1006"]
[PlyCount "55"]
[EventDate "2023.01.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Nc3 Nc6 3. Bf4 Nf6 4. e3 Bf5 5. Nf3 a6 6. Ne5 Nxe5 7. dxe5 Ne4 8. g4 Nxc3 9. bxc3 Be4 10. f3 Bg6 11. h4 h5 12. e6 c6 13. Bd3 Qc8 14. Bxg6 fxg6 15. gxh5 gxh5 16. Qd3 Qxe6 17. Rg1 Qf6 18. 0-0-0 e5 19. Bg5 Qxf3 20. Rgf1 Ba3+ 21. Kb1 e4 22. Qd4 Qg3 23. Qxg7 Rf8 24. Rxf8+ Bxf8 25. Qg6+ Kd7 26. Qf5+ Ke8 27. Qe6+ Be7 28. Qxe7# 1-0

