[Event "Mar del Plata op 53rd"]
[Site "Mar del Plata"]
[Date "2024.03.24"]
[Round "2"]
[White "Espinoza Palomino, Willyam"]
[Black "Arias Diaz, Miguel Angel"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "2400"]
[BlackElo "1996"]
[PlyCount "131"]
[EventDate "2024.03.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CB14_2024"]
[SourceDate "2024.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.04.01"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. c3 Bd6 7. Bd3 0-0 8. Qc2 Re8+ 9. Ne2 h5 10. Be3 Nd7 11. 0-0-0 Nf8 12. Kb1 Be6 13. c4 Rc8 14. Nc3 Bb4 15. Ne4 Be7 16. h3 f5 17. Nc3 g6 18. d5 Bd7 19. Be2 Bf6 20. Bf3 Qa5 21. Bd4 Nh7 22. Qd2 Qa6 23. Bxf6 Nxf6 24. Qd4 c5 25. Qf4 Ne4 26. Bxe4 fxe4 27. d6 Kg7 28. Nd5 Re6 29. Nc7 Qxc4 30. Nxe6+ Bxe6 31. b3 Qb5 32. Qe5+ Kh7 33. g4 h4 34. Rhe1 a5 35. Rxe4 Re8 36. Qf4 Bxb3 37. Rxe8 Bxd1+ 38. Kc1 Qxe8 39. Kxd1 Kg7 40. g5 Qe6 41. Qd2 Qd7 42. Qd5 f6 43. Qxc5 Qa4+ 44. Kc1 Qf4+ 45. Kb2 Qd2+ 46. Kb3 Qd1+ 47. Ka3 Qd3+ 48. Ka4 fxg5 49. Qe5+ Kh7 50. Qe7+ Kh6 51. d7 Qc4+ 52. Kxa5 Qc7+ 53. Kb4 Qf4+ 54. Kc3 Qc1+ 55. Kb3 Qb1+ 56. Ka3 Qc1+ 57. Kb4 Qb2+ 58. Ka5 Qxa2+ 59. Kb6 Qa6+ 60. Kc7 Qc4+ 61. Kd8 Qc6 62. Ke8 b5 63. Kf8 Qf3+ 64. Kg8 Qd5+ 65. Qf7 Qa8+ 66. Qf8+ 1-0

[Event "CHI-ch"]
[Site "Santiago"]
[Date "2024.02.26"]
[Round "11"]
[White "Arias Diaz, Miguel Angel"]
[Black "Torres Bravo, Cristobal Renato"]
[Result "0-1"]
[ECO "E48"]
[WhiteElo "1972"]
[BlackElo "2336"]
[PlyCount "81"]
[EventDate "2024.02.19"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHI"]
[SourceTitle "CB09_2024"]
[SourceDate "2024.02.28"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.28"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 0-0 6. Nge2 cxd4 7. exd4 d5 8. cxd5 Nxd5 9. 0-0 Nc6 10. Nxd5 Qxd5 11. Qc2 h6 12. Rd1 Rd8 13. Be3 Bd6 14. a3 Bd7 15. Bc4 Qh5 16. Nf4 Bxf4 17. Bxf4 Rac8 18. Qe4 Nb4 19. Bd3 Nxd3 20. Qxd3 Bc6 21. Rac1 Rd5 22. Qg3 Kh8 23. Be3 e5 24. Re1 exd4 25. Bd2 Rf5 26. b4 Rd8 27. Re7 Rdd5 28. Rce1 Rf6 29. f3 Kh7 30. R7e5 Rf5 31. Re7 Rf6 32. R7e5 Rxe5 33. Rxe5 Rf5 34. Re7 Bxf3 35. gxf3 Rxf3 36. Qg2 Rf6 37. Kh1 Rg6 38. Qe4 f5 39. Qxb7 Qd1+ 40. Be1 d3 41. Qd7 0-1

[Event "CHI-ch"]
[Site "Santiago"]
[Date "2024.02.25"]
[Round "10"]
[White "Lenoir Ibacache, Gabriel Alberto"]
[Black "Arias Diaz, Miguel Angel"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "2225"]
[BlackElo "1972"]
[PlyCount "70"]
[EventDate "2024.02.19"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHI"]
[SourceTitle "CB09_2024"]
[SourceDate "2024.02.28"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.28"]
[SourceQuality "1"]

1. e4 e6 2. Qe2 Be7 3. g3 d5 4. e5 c5 5. d3 Nc6 6. Nf3 h5 7. h4 Nh6 8. c3 b6 9. Bg2 Nf5 10. Bf4 Bb7 11. Nbd2 Qd7 12. a3 a5 13. Ng5 Ba6 14. 0-0 a4 15. Rfe1 Rd8 16. Bf3 g6 17. Nh3 Na5 18. Bg5 Bxg5 19. Nxg5 Qb5 20. c4 dxc4 21. Nxc4 Nxc4 22. dxc4 Qxc4 23. Bc6+ Ke7 24. Qxc4 Bxc4 25. Bxa4 Rd2 26. b4 Nd4 27. Bd1 Bd5 28. Re3 c4 29. a4 c3 30. Nf3 Bxf3 31. Bxf3 Nxf3+ 32. Kg2 c2 33. Kxf3 Rd1 34. Re1 Rhd8 35. Ke2 R8d2+ 0-1

[Event "CHI-ch"]
[Site "Santiago"]
[Date "2024.02.20"]
[Round "2"]
[White "Arias Diaz, Miguel Angel"]
[Black "Carrasco Miranda, Andres"]
[Result "0-1"]
[ECO "E71"]
[WhiteElo "1972"]
[BlackElo "2234"]
[PlyCount "86"]
[EventDate "2024.02.19"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHI"]
[SourceTitle "CB09_2024"]
[SourceDate "2024.02.28"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.28"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 0-0 6. Be3 e5 7. d5 Na6 8. Qd2 Nc5 9. f3 c6 10. g4 cxd5 11. cxd5 a5 12. Nge2 Bd7 13. Ng3 Rb8 14. Be2 b5 15. Nd1 Ne8 16. h4 f5 17. gxf5 gxf5 18. Bg5 Qb6 19. Nf2 Kh8 20. 0-0-0 b4 21. Rdg1 f4 22. Nh5 Nb3+ 23. axb3 Qxf2 24. Nxg7 Nxg7 25. Bd1 Rbc8+ 26. Bc2 Rxc2+ 27. Qxc2 Rc8 28. Qxc8+ Bxc8 29. Bf6 Kg8 30. Rxg7+ Kf8 31. Rhg1 Qxf3 32. Be7+ Ke8 33. Bxd6 Qe3+ 34. Kb1 Qxe4+ 35. Ka1 Qxd5 36. Rg8+ Kd7 37. R1g7+ Kxd6 38. Rxc8 Qxb3 39. Rd8+ Ke6 40. Rg5 Qe3 41. Re8+ Kd5 42. Rd8+ Kc4 43. Rb8 Kb3 0-1

[Event "Temuco op 1st"]
[Site "Temuco"]
[Date "2023.10.07"]
[Round "3"]
[White "Arias Diaz, Miguel Angel"]
[Black "Salinas Herrera, Pablo Patricio"]
[Result "0-1"]
[ECO "D36"]
[WhiteElo "1949"]
[BlackElo "2460"]
[PlyCount "98"]
[EventDate "2023.10.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 h6 7. Bh4 Be7 8. Bd3 0-0 9. Qc2 a5 10. Nge2 Na6 11. a3 Nc7 12. 0-0 Re8 13. f3 Ne6 14. a4 b6 15. Rad1 Bb7 16. Bf2 Nc7 17. h3 Na6 18. Qb1 Nb4 19. e4 Nxd3 20. Qxd3 Ba6 21. Qc2 Qd7 22. e5 Nh7 23. Rfe1 Bb4 24. f4 f5 25. Nc1 Nf8 26. Nd3 Ne6 27. g3 Bf8 28. Nc1 Qf7 29. Kh2 Kh8 30. Be3 Red8 31. Bf2 Rac8 32. Qb3 Bc4 33. Qc2 c5 34. Qd2 cxd4 35. Bxd4 Nxd4 36. Qxd4 Bc5 37. e6 Qg6 38. Qe5 Bf2 39. N3e2 Re8 40. e7 Bxe2 41. Nxe2 Rc2 42. g4 Bxe1 43. Rxe1 Qf7 44. Rc1 Rxc1 45. Nxc1 fxg4 46. hxg4 Rxe7 47. Qb8+ Re8 48. Qd6 Qe7 49. Qxb6 Qh4+ 0-1

[Event "Arica op 8th"]
[Site "Arica"]
[Date "2022.12.17"]
[Round "3"]
[White "Vergara Barreda, Inaki Imanol"]
[Black "Arias Diaz, Miguel Angel"]
[Result "1/2-1/2"]
[ECO "B42"]
[WhiteElo "1878"]
[BlackElo "1916"]
[PlyCount "37"]
[EventDate "2022.12.16"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "CHI"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 6. Nb3 Be7 7. Nc3 d6 8. Be3 Nf6 9. Qe2 Qc7 10. f3 0-0 11. g4 b5 12. 0-0-0 b4 13. Nb1 Nfd7 14. N1d2 Ne5 15. Kb1 Nbc6 16. f4 Nd7 17. g5 a5 18. Nf3 a4 19. Nbd4 1/2-1/2

[Event "Pan American-ch U16"]
[Site "Montevideo"]
[Date "2022.06.27"]
[Round "3"]
[White "Arias Diaz, Miguel Angel"]
[Black "Martello, Benjamin"]
[Result "1-0"]
[ECO "A09"]
[WhiteElo "1848"]
[BlackElo "1611"]
[PlyCount "71"]
[EventDate "2022.06.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 c5 5. Bxc4 cxd4 6. exd4 e6 7. 0-0 Bd6 8. Nc3 0-0 9. Bg5 h6 10. Bh4 Nbd7 11. Re1 a6 12. Bb3 b5 13. Bc2 Bb7 14. Ne5 Qc7 15. Qd3 Bxe5 16. dxe5 Nc5 17. Qg3 Ne8 18. b4 Nd7 19. Be7 Rc8 20. Rac1 Kh8 21. Qd3 g6 22. Qe3 Kg7 23. Bxf8+ Nxf8 24. Be4 Qe7 25. Bxb7 Qxb7 26. Ne4 Nd7 27. Rxc8 Qxc8 28. Nd6 Nxd6 29. exd6 Qc6 30. Qd2 Nb6 31. Qd4+ Kg8 32. Qc5 Qb7 33. Qc7 Qxc7 34. dxc7 Kf8 35. Rd1 Ke7 36. Rd8 1-0

[Event "Pan American-ch U16"]
[Site "Montevideo"]
[Date "2022.06.27"]
[Round "2"]
[White "Galaviz Medina, Atlas Adomaitis"]
[Black "Arias Diaz, Miguel Angel"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2096"]
[BlackElo "1848"]
[PlyCount "99"]
[EventDate "2022.06.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 c5 8. Be3 Qa5 9. Qb3 0-0 10. Bc4 cxd4 11. Bxd4 Bxd4 12. Nxd4 Qg5 13. g3 Nc6 14. Bd5 e6 15. Nxc6 exd5 16. Qxd5 Qf6 17. Nd4 Rd8 18. Qb3 Bh3 19. f3 Rac8 20. Ke2 Bg2 21. Rhc1 Qg5 22. Rg1 Bh3 23. Rgd1 Qf6 24. Kf2 h5 25. Rab1 Rd6 26. Ne2 Rb6 27. Qc2 Bg4 28. Rd3 Be6 29. Rxb6 axb6 30. Rd4 Bc4 31. Nf4 b5 32. Nd3 Ra8 33. Nb4 Qe6 34. Rd2 Qh3 35. Ke3 Qf1 36. Qd1 Qh3 37. Rd8+ Rxd8 38. Qxd8+ Kg7 39. Qd2 Qf1 40. Kf4 Qg1 41. Qd4+ Qxd4 42. cxd4 Kf6 43. e5+ Ke6 44. Ke4 f5+ 45. Kf4 b6 46. a3 Be2 47. d5+ Ke7 48. Nc2 Kd7 49. Nd4 Bc4 50. d6 1-0

[Event "Pan American-ch U16"]
[Site "Montevideo"]
[Date "2022.06.26"]
[Round "1"]
[White "Arias Diaz, Miguel Angel"]
[Black "Diaz Delograsi, Francisco"]
[Result "1-0"]
[ECO "E70"]
[WhiteElo "1848"]
[PlyCount "45"]
[EventDate "2022.06.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URU"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nge2 0-0 6. Ng3 c5 7. d5 Nbd7 8. Be2 Re8 9. 0-0 Nf8 10. f4 e6 11. Be3 Qb6 12. Rb1 a5 13. h3 exd5 14. cxd5 Bd7 15. Qd2 Re7 16. e5 dxe5 17. f5 Rc8 18. Bc4 Qd8 19. Bg5 Re8 20. Qf2 h6 21. Bxf6 Qxf6 22. Nce4 Qe7 23. f6 1-0

[Event "Mar del Plata op 51st"]
[Site "Mar del Plata"]
[Date "2022.04.09"]
[Round "1"]
[White "Arias Diaz, Miguel Angel"]
[Black "Garcia Palermo, Carlos H"]
[Result "0-1"]
[ECO "E43"]
[WhiteElo "1820"]
[BlackElo "2403"]
[PlyCount "135"]
[EventDate "2022.04.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. f3 c5 7. Nge2 cxd4 8. exd4 d5 9. 0-0 dxc4 10. Bxc4 0-0 11. Bg5 h6 12. Bh4 Be7 13. Qd2 Nc6 14. Rad1 Rc8 15. b3 a6 16. Kh1 Nb4 17. a3 Nbd5 18. Nxd5 Nxd5 19. Bxe7 Qxe7 20. a4 Qg5 21. Qxg5 hxg5 22. Rd3 Rfd8 23. Kg1 Nb4 24. Rd2 Nc6 25. Kf2 Na5 26. Rc1 Rc7 27. Rd3 Kf8 28. Rdc3 Rcd7 29. Bd3 Rd6 30. Be4 Bd5 31. b4 Nb3 32. Rd1 Bxe4 33. fxe4 Nxd4 34. Rcd3 Nf5 35. Rxd6 Nxd6 36. Kf3 Ke7 37. Rc1 f5 38. exf5 Nxf5 39. Rc6 Rd3+ 40. Kf2 Rd6 41. Rc7+ Kf6 42. Ra7 b5 43. axb5 axb5 44. Rb7 Rd2 45. Ke1 Rb2 46. g4 Nd6 47. Rb6 Rb1+ 48. Kf2 Ke5 49. Nd4 Ne4+ 50. Ke3 Re1+ 51. Ne2 Nd6 52. Kf2 Rb1 53. Nd4 Kxd4 54. Rxd6+ Ke5 55. Rd7 Rxb4 56. Rxg7 Rxg4 57. h3 Rf4+ 58. Ke3 Kf6 59. Rb7 b4 60. Rb5 Rh4 61. Kf2 e5 62. Kg3 Kf5 63. Rb8 Rc4 64. Rf8+ Ke4 65. Kg4 Rc3 66. Rb8 b3 67. Rb4+ Kd3 68. Kxg5 0-1

[Event "Valdivia op 2nd"]
[Site "Valdivia"]
[Date "2021.09.19"]
[Round "6"]
[White "Caro Garcia Huidobro, Ismael"]
[Black "Arias Diaz, Miguel Angel"]
[Result "1/2-1/2"]
[ECO "D82"]
[WhiteElo "1894"]
[BlackElo "1694"]
[PlyCount "126"]
[EventDate "2021.09.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "CHI"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c5 6. dxc5 Qa5 7. Qa4+ Qxa4 8. Nxa4 Bd7 9. Nc3 Na6 10. cxd5 Nxc5 11. Nf3 0-0 12. Be2 Na4 13. Nxa4 Bxa4 14. d6 exd6 15. Bxd6 Rfe8 16. Be5 Bc6 17. Bc3 Rac8 18. 0-0 a6 19. Rfd1 Rcd8 20. Rxd8 Rxd8 21. Rd1 Rxd1+ 22. Bxd1 Bd5 23. a3 Kf8 24. Nd2 Ke7 25. Bf3 Bxf3 26. Nxf3 h6 27. Kf1 Ke6 28. Ke2 Bf8 29. Nd4+ Kd5 30. f3 Nd7 31. Nb3 b6 32. e4+ Kc6 33. Kd3 Bd6 34. h3 h5 35. Nd2 Nc5+ 36. Ke2 Ne6 37. e5 Nf4+ 38. Ke3 Nd5+ 39. Ke4 Nxc3+ 40. bxc3 Bxa3 41. g4 hxg4 42. fxg4 Be7 43. Nf3 Kc5 44. h4 a5 45. Kd3 a4 46. h5 gxh5 47. gxh5 Bf8 48. Ng5 Kd5 49. Nxf7 Ke6 50. Nd6 Kxe5 51. Nc4+ Kf5 52. Nxb6 a3 53. Kc2 Kg5 54. Kb3 Kxh5 55. Nd7 Bd6 56. Nf6+ Kg6 57. Ne4 Be5 58. c4 Bb2 59. c5 Kf7 60. Nc3 Bxc3 61. Kxa3 Ke6 62. c6 Kd6 63. c7 Kxc7 1/2-1/2

[Event "Valdivia op 2nd"]
[Site "Valdivia"]
[Date "2021.09.17"]
[Round "1"]
[White "Arias Diaz, Miguel Angel"]
[Black "Salinas Herrera, Pablo Patricio"]
[Result "0-1"]
[ECO "D13"]
[WhiteElo "1694"]
[BlackElo "2509"]
[PlyCount "104"]
[EventDate "2021.09.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "CHI"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]

1. c4 c6 2. Nc3 d5 3. cxd5 cxd5 4. d4 Nc6 5. Nf3 Nf6 6. Bg5 Ne4 7. Bf4 e6 8. e3 g5 9. Bg3 h5 10. h3 Nxg3 11. fxg3 Bd6 12. Ne2 Ne7 13. Qd2 Nf5 14. 0-0-0 Bd7 15. Kb1 Qf6 16. Rg1 g4 17. hxg4 hxg4 18. Ne1 Qh6 19. Nf4 Qh2 20. Qf2 Qxg3 21. Qxg3 Nxg3 22. Ned3 Ke7 23. Be2 Rag8 24. Rde1 Bc6 25. Bd1 f6 26. Bb3 Bxf4 27. Nxf4 Kd6 28. Ne2 Nxe2 29. Rxe2 Rh2 30. a4 Rgh8 31. Kc2 b5 32. axb5 Bxb5 33. Ree1 R8h3 34. Kc3 Rg3 35. Kb4 a6 36. Rh1 Rxh1 37. Rxh1 Rxe3 38. Rh6 a5+ 39. Kxb5 Rxb3+ 40. Kxa5 Rxb2 41. Rxf6 Rxg2 42. Kb4 Rc2 43. Rf4 g3 44. Rg4 g2 45. Kb3 Rc4 46. Rxg2 Rxd4 47. Kc3 Rc4+ 48. Kd3 e5 49. Rg6+ Kc5 50. Rg5 e4+ 51. Kd2 Ra4 52. Rg8 Kd4 0-1

[Event "South America-ch U20"]
[Site "Chess.com INT"]
[Date "2021.06.19"]
[Round "5"]
[White "Araneda Flores, Javier Armando"]
[Black "Arias Diaz, Miguel Angel"]
[Result "0-1"]
[ECO "D85"]
[WhiteElo "1258"]
[BlackElo "1694"]
[PlyCount "50"]
[EventDate "2021.06.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. h3 Nc6 9. Bb2 Qb6 10. Rb1 Qa5 11. e5 cxd4 12. Nxd4 Qxe5+ 13. Qe2 Nxd4 14. Qxe5 Nf3+ 15. gxf3 Bxe5 16. Bb5+ Bd7 17. a4 Bxb5 18. axb5 0-0 19. c4 Bxb2 20. Rxb2 Rac8 21. Rc2 b6 22. h4 h5 23. f4 Rfd8 24. 0-0 Rd4 25. Re1 e6 0-1

[Event "South America-ch U20"]
[Site "Chess.com INT"]
[Date "2021.06.19"]
[Round "7"]
[White "Aravena Navarro, Alexis Andres"]
[Black "Arias Diaz, Miguel Angel"]
[Result "1-0"]
[ECO "D80"]
[WhiteElo "1937"]
[BlackElo "1694"]
[PlyCount "69"]
[EventDate "2021.06.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. f3 d5 3. c4 g6 4. Nc3 Bg7 5. e4 dxe4 6. fxe4 0-0 7. Nf3 c5 8. d5 Nfd7 9. Be3 Na6 10. Qd2 Ne5 11. Bh6 Nxf3+ 12. gxf3 Nc7 13. h4 Qd6 14. 0-0-0 f5 15. h5 Rf7 16. Bd3 f4 17. hxg6 hxg6 18. Qh2 Bxh6 19. Qxh6 Qf6 20. Rdg1 Rg7 21. e5 Qxe5 22. Bxg6 Qe3+ 23. Kb1 Bf5+ 24. Ka1 Bxg6 25. Rxg6 Qe5 26. Rhg1 Ne8 27. Ne4 a5 28. Ng5 Rxg6 29. Qxg6+ Qg7 30. Qe6+ Kf8 31. Qf5+ Qf6 32. Nh7+ Kf7 33. Nxf6 Nxf6 34. Qe6+ Kf8 35. d6 1-0

[Event "South America-ch U20"]
[Site "Chess.com INT"]
[Date "2021.06.19"]
[Round "4"]
[White "Arias Diaz, Miguel Angel"]
[Black "Arias Diaz, Javier Alonso"]
[Result "1-0"]
[ECO "E94"]
[WhiteElo "1694"]
[BlackElo "1271"]
[PlyCount "119"]
[EventDate "2021.06.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 Nbd7 7. 0-0 e5 8. Be3 Nh5 9. Qd2 f5 10. exf5 gxf5 11. dxe5 dxe5 12. Ng5 f4 13. Qd5+ Kh8 14. Nf7+ Rxf7 15. Qxf7 Nhf6 16. Bd2 Nc5 17. Nd5 Nce4 18. Rad1 Bd7 19. Nxf6 Nxf6 20. c5 Qc8 21. Qb3 Be6 22. Bc4 Bg4 23. f3 Bf5 24. Bc3 Nd7 25. Be6 Nxc5 26. Bxc8 Nxb3 27. Bxf5 Nc5 28. Be4 Re8 29. Rd5 b6 30. Rfd1 c6 31. Rd8 Rxd8 32. Rxd8+ Bf8 33. Bxe5+ Kg8 34. Bd6 Ne6 35. Rxf8+ Nxf8 36. Bxf8 Kxf8 37. Bxc6 Ke7 38. g3 fxg3 39. hxg3 Kd6 40. Be4 Ke5 41. Bxh7 b5 42. Kf2 a5 43. Ke3 b4 44. f4+ Kf6 45. g4 Kg7 46. Bc2 Kf6 47. g5+ Kf7 48. f5 Kg7 49. Kf4 Kf8 50. f6 Kg8 51. Kf5 b3 52. Bxb3+ Kf8 53. g6 a4 54. g7+ Ke8 55. g8Q+ Kd7 56. Qe6+ Kc7 57. Bxa4 Kd8 58. Qe7+ Kc8 59. f7 Kb8 60. f8Q# 1-0

[Event "South America-ch U20"]
[Site "Chess.com INT"]
[Date "2021.06.19"]
[Round "2"]
[White "Arias Diaz, Miguel Angel"]
[Black "Mundaca Bermedo, Pia Ignacia"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "1694"]
[BlackElo "1483"]
[PlyCount "77"]
[EventDate "2021.06.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 a6 6. a4 d6 7. e4 g6 8. h3 Bg7 9. Nf3 0-0 10. Be2 Qe7 11. Qc2 b6 12. 0-0 Nbd7 13. Bf4 Bb7 14. Rfe1 h6 15. Rad1 Rfd8 16. Bc4 Nh5 17. Bh2 Ne5 18. Be2 Nxf3+ 19. Bxf3 Be5 20. Bxh5 Bxh2+ 21. Kxh2 Qe5+ 22. Kg1 Qxh5 23. Qb3 Rab8 24. Rd3 Qe5 25. Rf3 Rdc8 26. Qc2 Ba8 27. Qd2 Kg7 28. Qe2 b5 29. axb5 axb5 30. Nxb5 Rb6 31. Nc3 Rcb8 32. Rb1 Rb3 33. Rd3 h5 34. Rdd1 Bb7 35. Qc2 Bc8 36. Qe2 Bd7 37. Rdc1 Kg8 38. Rc2 Kg7 39. Qd2 1-0

[Event "South America-ch U20"]
[Site "Chess.com INT"]
[Date "2021.06.19"]
[Round "6"]
[White "Arias Diaz, Miguel Angel"]
[Black "Pena Cifuentes, Tomas Alberto"]
[Result "1/2-1/2"]
[ECO "E47"]
[WhiteElo "1694"]
[BlackElo "1989"]
[PlyCount "153"]
[EventDate "2021.06.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Bd3 0-0 6. Nge2 b6 7. 0-0 Bb7 8. a3 Bd6 9. Ng3 Nbd7 10. cxd5 exd5 11. Nf5 Be7 12. Qf3 g6 13. Nxe7+ Qxe7 14. Re1 Ne4 15. Qe2 Ndf6 16. f3 Nxc3 17. bxc3 Rfe8 18. c4 Rad8 19. cxd5 Nxd5 20. e4 Qf6 21. Qf2 Nf4 22. Bxf4 Qxf4 23. Rac1 c5 24. d5 Kg7 25. Bb5 Re7 26. Qb2+ Qe5 27. Qxe5+ Rxe5 28. Red1 f5 29. Bc6 Bxc6 30. dxc6 Rc8 31. Rd7+ Kf6 32. c7 Re7 33. Rcd1 fxe4 34. fxe4 Ke6 35. R1d6+ Kf7 36. Rxe7+ Kxe7 37. Rc6 Kd7 38. Rf6 Rxc7 39. Rf7+ Kc6 40. Rf6+ Kd7 41. Rf7+ Kd8 42. Rf6 Ke7 43. e5 Rd7 44. Rf3 Rd5 45. Rh3 h5 46. Rg3 Rxe5 47. Rxg6 Kf7 48. Rh6 Kg7 49. Rd6 Re2 50. Rd7+ Kf6 51. Rxa7 Ke6 52. Kf1 Rb2 53. Rh7 c4 54. Rh6+ Kf7 55. Ke1 Rxg2 56. Rxh5 Ra2 57. Rb5 c3 58. Kd1 Rxh2 59. Rxb6 Ra2 60. Rc6 Rxa3 61. Kc2 Ra7 62. Rxc3 Ke6 63. Kd3 Rh7 64. Rc6+ Kd5 65. Ra6 Rh3+ 66. Kd2 Kc4 67. Ra4+ Kb3 68. Rg4 Rh2+ 69. Ke3 Rh3+ 70. Kf4 Rc3 71. Kg5 Rc8 72. Kf5 Rc5+ 73. Kg6 Rc6+ 74. Kg5 Rc5+ 75. Kg6 Rc6+ 76. Kg5 Rc5+ 77. Kg6 1/2-1/2

[Event "South America-ch U20"]
[Site "Chess.com INT"]
[Date "2021.06.19"]
[Round "1"]
[White "Borda Rodas, Anapaola S"]
[Black "Arias Diaz, Miguel Angel"]
[Result "1-0"]
[ECO "B84"]
[WhiteElo "2162"]
[BlackElo "1694"]
[PlyCount "45"]
[EventDate "2021.06.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Be2 Nf6 6. Nc3 Qc7 7. 0-0 d6 8. Kh1 b6 9. f4 Bb7 10. Bf3 Nbd7 11. Qe1 Be7 12. Be3 0-0 13. Qg3 Rfe8 14. e5 dxe5 15. fxe5 Nd5 16. Bxd5 Bxd5 17. Nxd5 exd5 18. e6 Bd6 19. exf7+ Kh8 20. fxe8Q+ Rxe8 21. Bf4 Ne5 22. Nf5 Bf8 23. Rae1 1-0

[Event "South America-ch U20"]
[Site "Chess.com INT"]
[Date "2021.06.19"]
[Round "3"]
[White "Castellanos Villela, Alejandro"]
[Black "Arias Diaz, Miguel Angel"]
[Result "1-0"]
[ECO "B84"]
[WhiteElo "2202"]
[BlackElo "1694"]
[PlyCount "75"]
[EventDate "2021.06.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CHI"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. Nge2 a6 4. d4 cxd4 5. Nxd4 Qc7 6. Be2 Nf6 7. 0-0 d6 8. Be3 b6 9. f4 Bb7 10. Bf3 Nbd7 11. Qe2 Be7 12. Rae1 0-0 13. g4 Nc5 14. Qg2 Rad8 15. g5 Ne8 16. f5 exf5 17. Nxf5 b5 18. Bd4 Ne6 19. Nd5 Bxd5 20. Nxe7+ Qxe7 21. exd5 Qxg5 22. dxe6 Qxg2+ 23. Kxg2 fxe6 24. Rxe6 Nf6 25. Bb7 Rd7 26. Bxa6 Rc7 27. c3 Nd5 28. Rxf8+ Kxf8 29. Kg3 g5 30. Bxb5 h5 31. Bd3 Nf4 32. Rf6+ Ke7 33. Bg6 Rc8 34. Rf7+ Ke6 35. Bf5+ Kxf7 36. Bxc8 Kg6 37. a4 Nd5 38. a5 1-0

[Event "South America-ch U12 16th"]
[Site "Buenos Aires"]
[Date "2019.12.06"]
[Round "9.3"]
[White "Arias Diaz, Miguel Angel"]
[Black "Reyes Mendoza, Tomas"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "1590"]
[BlackElo "1917"]
[PlyCount "66"]
[EventDate "2019.12.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Nbd2 c6 4. c4 Bf5 5. g3 h6 6. Bg2 e6 7. 0-0 Bd6 8. b3 Nbd7 9. Bb2 0-0 10. Re1 a5 11. a3 Qb8 12. Nh4 Bh7 13. e4 g5 14. e5 gxh4 15. exd6 Qxd6 16. Nf3 hxg3 17. hxg3 Bg6 18. Ne5 Kg7 19. Bc1 Rad8 20. Bf4 Qe7 21. Qd2 Rh8 22. c5 Ra8 23. f3 Nh5 24. Nxg6 Kxg6 25. Bd6 Qd8 26. Kf2 Kg7 27. Rh1 Qg5 28. Qe2 Rhe8 29. Be5+ f6 30. Rh4 Nxe5 31. Rxh5 Qxh5 32. dxe5 Qxe5 33. Qd2 Qxa1 0-1

[Event "South America-ch U12 16th"]
[Site "Buenos Aires"]
[Date "2019.12.03"]
[Round "4.2"]
[White "Arias Diaz, Miguel Angel"]
[Black "Fiorito, Joaquin"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "1590"]
[BlackElo "2001"]
[PlyCount "64"]
[EventDate "2019.12.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Nbd2 Bf5 4. c4 e6 5. g3 c6 6. Bg2 h6 7. 0-0 Be7 8. b3 0-0 9. Bb2 a5 10. e3 a4 11. Qe2 Na6 12. Ne5 Bb4 13. e4 dxe4 14. Nxe4 Bxe4 15. Bxe4 a3 16. Bc1 Qxd4 17. Bc2 Qxa1 18. Bxh6 Qc3 19. Bg5 Nh7 20. Bh4 Qd2 21. Bxh7+ Kxh7 22. Qe4+ f5 23. Qf3 Qh6 24. Rd1 Nc5 25. Be7 Nd3 26. Ng4 Ne5 27. Nxe5 Bxe7 28. Rd7 Bf6 29. Nf7 Qg6 30. Nd6 Rad8 31. Rxd8 Rxd8 32. Nxb7 Rd2 0-1

[Event "South America-ch U12 16th"]
[Site "Buenos Aires"]
[Date "2019.12.02"]
[Round "3.10"]
[White "Payba, Joaquin"]
[Black "Arias Diaz, Miguel Angel"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1264"]
[BlackElo "1590"]
[PlyCount "92"]
[EventDate "2019.12.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. Nc3 0-0 5. Qd2 d6 6. h4 Nc6 7. Bh6 Bf5 8. Bxg7 Kxg7 9. d5 Nb4 10. Nd4 Qd7 11. a3 Nbxd5 12. Nxf5+ Qxf5 13. e4 Nxe4 14. Qxd5 Qxf2+ 15. Kd1 Ng3 16. Ne4 Nxf1 17. Qd3 Ne3+ 18. Kc1 Qxg2 19. Re1 Nf5 20. Kb1 Qh2 21. Ka2 Qf4 22. h5 Rad8 23. Qc3+ Qe5 24. Qxc7 Qd5+ 25. b3 Rc8 26. c4 Rxc7 27. cxd5 Rc2+ 28. Kb1 Rfc8 29. Ra2 Rxa2 30. Kxa2 Nd4 31. a4 Rc2+ 32. Ka3 Re2 33. Rxe2 Nxe2 34. hxg6 Kxg6 35. b4 Kf5 36. Nd2 Ke5 37. b5 Kxd5 38. Kb4 h5 39. Nb3 h4 40. Na5 h3 41. Nxb7 h2 42. a5 h1Q 43. b6 Qb1+ 44. Ka4 Nc3+ 45. Ka3 Kc4 46. Nc5 Qa1# 0-1

[Event "Pan American-ch U12"]
[Site "Guayaquil"]
[Date "2019.07.27"]
[Round "9"]
[White "Arias Diaz, Miguel Angel"]
[Black "Steiner, Adamson"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "1631"]
[BlackElo "1556"]
[PlyCount "102"]
[EventDate "2019.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. g3 c5 5. cxd5 exd5 6. Bg2 h6 7. 0-0 Nc6 8. Nc3 Bd6 9. b3 cxd4 10. Nxd4 Be5 11. e3 Bg4 12. Qd2 0-0 13. Bb2 Bxd4 14. exd4 Qd7 15. Rac1 Bh3 16. Rfe1 Bxg2 17. Kxg2 Rfe8 18. f3 Rxe1 19. Rxe1 Re8 20. Na4 Rxe1 21. Qxe1 b6 22. Bc3 Qd6 23. b4 Qe7 24. Qxe7 Nxe7 25. Kf2 Nf5 26. Nb2 Nd6 27. Nd3 Nde4+ 28. fxe4 Nxe4+ 29. Ke3 Nxc3 30. Kd2 Ne4+ 31. Ke3 g5 32. Ne5 Kf8 33. Nc6 a6 34. Nb8 Ke7 35. Nxa6 Kd6 36. a4 Kc6 37. b5+ Kd6 38. Nb4 f5 39. Nd3 Nc3 40. Kd2 Nb1+ 41. Ke2 Nc3+ 42. Kd2 Nb1+ 43. Kc1 Na3 44. Ne5 Ke6 45. Nd3 Nc4 46. Nb2 f4 47. Nd3 Kf5 48. Kc2 Ke4 49. Kc3 f3 50. Nf2+ Ke3 51. Ng4+ Ke2 0-1

[Event "Pan American-ch U12"]
[Site "Guayaquil"]
[Date "2019.07.26"]
[Round "8"]
[White "Mendez Machado, Andre"]
[Black "Arias Diaz, Miguel Angel"]
[Result "0-1"]
[ECO "B34"]
[WhiteElo "1718"]
[BlackElo "1631"]
[PlyCount "53"]
[EventDate "2019.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. f3 0-0 8. Qd2 d5 9. 0-0-0 dxe4 10. Nxc6 Qxd2+ 11. Rxd2 bxc6 12. Nxe4 Nd5 13. Bg5 f6 14. c4 fxg5 15. cxd5 cxd5 16. Rxd5 g4 17. Be2 Be6 18. Ra5 Rab8 19. b3 Rfc8+ 20. Kb1 Bxb3 21. axb3 Rxb3+ 22. Ka2 Rb2+ 23. Ka3 Rxe2 24. Rxa7 Re3+ 25. Kb4 gxf3 26. gxf3 Rxf3 27. Ra4 0-1

[Event "Pan American-ch U12"]
[Site "Guayaquil"]
[Date "2019.07.25"]
[Round "7"]
[White "Arias Diaz, Miguel Angel"]
[Black "Puchuri Torres, Joseph Ricardo"]
[Result "1-0"]
[ECO "A90"]
[WhiteElo "1631"]
[BlackElo "1300"]
[PlyCount "72"]
[EventDate "2019.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 f5 2. c4 e6 3. Nf3 Nf6 4. g3 d5 5. Nbd2 c6 6. Bg2 Bd6 7. 0-0 0-0 8. e3 Ne4 9. cxd5 exd5 10. Qb3 Qb6 11. Qc2 h6 12. h4 Nd7 13. b3 Ndf6 14. Bb2 Be6 15. Ne5 Nxd2 16. Qxd2 Ne4 17. Qe2 Bxe5 18. dxe5 Rad8 19. Rac1 Rde8 20. Kh2 Qb4 21. f3 Nxg3 22. Kxg3 f4+ 23. Kh2 fxe3 24. Qe1 Qf4+ 25. Qg3 d4 26. Qxf4 Rxf4 27. Kg3 Ref8 28. Rfd1 Bd5 29. Rxd4 Rxf3+ 30. Bxf3 Rxf3+ 31. Kg4 h5+ 32. Kg5 Rg3+ 33. Kf5 Rf3+ 34. Rf4 Be6+ 35. Kxe6 Rxf4 36. Re1 Rf8 1-0

[Event "Pan American-ch U12"]
[Site "Guayaquil"]
[Date "2019.07.24"]
[Round "5"]
[White "Arias Diaz, Miguel Angel"]
[Black "Sanchez Garcia, Ivan A"]
[Result "1-0"]
[ECO "A97"]
[WhiteElo "1631"]
[BlackElo "1437"]
[PlyCount "62"]
[EventDate "2019.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 f5 2. c4 Nf6 3. Nf3 e6 4. g3 Be7 5. Bg2 0-0 6. 0-0 d6 7. Nc3 Qe8 8. Re1 Ne4 9. Qc2 Nxc3 10. Qxc3 Qg6 11. Qd3 Bf6 12. Bd2 e5 13. dxe5 dxe5 14. Qd5+ Qf7 15. Nxe5 Bxe5 16. Qxe5 Kh8 17. Qc3 Nd7 18. Rad1 Nf6 19. Be3 Qh5 20. Bd4 c6 21. Bxf6 gxf6 22. c5 Be6 23. a3 Rf7 24. Rd6 Re8 25. Bf3 Qh3 26. Red1 Kg7 27. R1d4 Qh6 28. Rh4 Qg5 29. Bh5 Rd7 30. f4 Qxh4 31. gxh4 Red8 1-0

[Event "Pan American-ch U12"]
[Site "Guayaquil"]
[Date "2019.07.24"]
[Round "6"]
[White "Cahuapaza Tarapaca, Leonardo"]
[Black "Arias Diaz, Miguel Angel"]
[Result "1/2-1/2"]
[ECO "B74"]
[WhiteElo "1358"]
[BlackElo "1631"]
[PlyCount "59"]
[EventDate "2019.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 0-0 8. 0-0 Nc6 9. Nb3 a6 10. f4 b5 11. a3 Bb7 12. Bf3 Rc8 13. Qd2 Nd7 14. Nd4 Na5 15. Be2 Nb6 16. b3 Nc6 17. Bg4 Nd7 18. f5 Nf6 19. Bf3 Ne5 20. Nd5 Bxd5 21. exd5 Nxf3+ 22. Rxf3 Nxd5 23. Bh6 Nf6 24. fxg6 hxg6 25. Rh3 Ng4 26. Bxg7 Kxg7 27. Nf5+ Kf6 28. Nd4 Kg7 29. Rf1 e6 30. Rg3 1/2-1/2

[Event "Pan American-ch U12"]
[Site "Guayaquil"]
[Date "2019.07.22"]
[Round "3"]
[White "Arias Diaz, Miguel Angel"]
[Black "Palomino Landeo, Diego Fernando"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1631"]
[BlackElo "1281"]
[PlyCount "116"]
[EventDate "2019.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. Nf3 Bf5 4. e3 a6 5. Bd3 Bg6 6. 0-0 e6 7. Ne5 Bd6 8. c3 Nbd7 9. Bg3 0-0 10. Bxg6 hxg6 11. Nd2 Nb6 12. Qc2 Rc8 13. Rad1 Qe7 14. Qb3 Nfd7 15. Rfe1 a5 16. a4 Bxe5 17. Bxe5 Nxe5 18. dxe5 Rfd8 19. Nf3 Nc4 20. Qc2 c5 21. b3 Nb6 22. c4 Qc7 23. Rc1 dxc4 24. bxc4 Qd7 25. Ra1 Qd3 26. Qxd3 Rxd3 27. Rec1 Rcd8 28. h3 Rb3 29. Ng5 Rb4 30. Rab1 Nxa4 31. Rxb4 axb4 32. Ne4 Rd3 33. Ra1 Ra3 34. Rd1 Kf8 35. Nd6 b3 36. Nc8 f5 37. Rd8+ Kf7 38. Nd6+ Ke7 39. Rb8 Kd7 40. Rxb7+ Kc6 41. Rc7+ Kxc7 42. Nb5+ Kc6 43. Nxa3 Nc3 44. g4 b2 45. Kg2 b1Q 46. Nxb1 Nxb1 47. Kg3 Kd7 48. Kf4 Nd2 49. Kg5 fxg4 50. hxg4 Nxc4 51. Kf4 Kc6 52. Ke4 Kb5 53. f4 Nb6 54. Kd3 Kb4 55. e4 c4+ 56. Kc2 c3 57. f5 exf5 58. exf5 Nd5 0-1

[Event "Pan American-ch U12"]
[Site "Guayaquil"]
[Date "2019.07.22"]
[Round "2"]
[White "Safranek, William"]
[Black "Arias Diaz, Miguel Angel"]
[Result "1-0"]
[ECO "B78"]
[WhiteElo "1132"]
[BlackElo "1631"]
[PlyCount "86"]
[EventDate "2019.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Bc4 Nc6 9. Qd2 Bd7 10. 0-0-0 Rb8 11. h4 b5 12. Bb3 Na5 13. h5 Nc4 14. Bxc4 bxc4 15. hxg6 fxg6 16. Nde2 Qa5 17. a3 Rb7 18. Qd4 Be6 19. Bh6 Rfb8 20. Bxg7 Kxg7 21. Nf4 Bf7 22. Nfd5 Rxb2 23. Nxf6 exf6 24. Rxh7+ Kxh7 25. Qxf6 Qh5 26. Qxf7+ Kh8 27. Qf6+ Kh7 28. Qxd6 Qg5+ 29. Qd2 Qxd2+ 30. Rxd2 R2b7 31. Rd4 Rc8 32. Nd5 Kg7 33. Ne3 c3 34. Rd3 Rbc7 35. Nd5 Rc5 36. Kd1 Rd8 37. Ke2 Re8 38. Rd4 Kf7 39. Ke3 Ke6 40. Kd3 Rec8 41. Ra4 a5 42. Nb6 R8c7 43. Nc4 Rh7 1-0

[Event "Pan American-ch U12"]
[Site "Guayaquil"]
[Date "2019.07.21"]
[Round "1"]
[White "Arias Diaz, Miguel Angel"]
[Black "Abarca Benites, Isaac Alejandro"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "1631"]
[BlackElo "1121"]
[PlyCount "143"]
[EventDate "2019.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ECU"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d6 3. Nf3 e6 4. e3 Nbd7 5. c3 d5 6. Bd3 Be7 7. Nbd2 0-0 8. 0-0 b6 9. Re1 Bb7 10. Qc2 h6 11. Bg3 Nh5 12. Rad1 Nxg3 13. hxg3 Nf6 14. Ne5 Bd6 15. Ndf3 Nd7 16. e4 Nxe5 17. Nxe5 Bxe5 18. dxe5 Qe7 19. exd5 Bxd5 20. Be4 Rad8 21. Qa4 Bxe4 22. Qxe4 Rxd1 23. Rxd1 Rd8 24. Rd4 Rxd4 25. Qxd4 a5 26. Kf1 Kf8 27. Ke2 Ke8 28. Qg4 Qg5 29. Qe4 Qe7 30. f4 Qd7 31. Qd3 Qxd3+ 32. Kxd3 Kd7 33. g4 g6 34. Kc4 Kc6 35. a4 g5 36. fxg5 hxg5 37. b4 axb4 38. cxb4 Kb7 39. Kb5 c6+ 40. Kc4 Ka6 41. Kc3 Ka7 42. a5 Ka6 43. axb6 Kb7 44. Kd4 Kxb6 45. Kc4 Kb7 46. Kc5 Kc7 47. g3 Kd7 48. Kb6 f6 49. exf6 e5 50. f7 Ke7 51. Kxc6 e4 52. b5 e3 53. b6 e2 54. b7 e1Q 55. f8Q+ Kxf8 56. b8Q+ Ke7 57. Qd6+ Kf7 58. Qd7+ Qe7 59. Qxe7+ Kxe7 60. Kd5 Kf6 61. Kd6 Kg6 62. Ke6 Kh6 63. Kf5 Kh7 64. Kxg5 Kg7 65. Kf5 Kf7 66. g5 Kg7 67. g6 Kg8 68. Kf6 Kf8 69. g7+ Kg8 70. g4 Kh7 71. Kf7 Kh6 72. g5+ 1-0

[Event "Gibraltar Amateur op-A"]
[Site "Caleta"]
[Date "2019.01.25"]
[Round "5"]
[White "Arias Diaz, Miguel Angel"]
[Black "Bauer, Dieter"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "1421"]
[BlackElo "1714"]
[PlyCount "103"]
[EventDate "2019.01.21"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GGB"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Nf3 Bd6 7. Bg5 Be6 8. Bd3 c6 9. 0-0-0 Kc7 10. Kb1 Ng4 11. Rhf1 f6 12. Bh4 Bb4 13. Ne2 Nd7 14. h3 Nh6 15. a3 Be7 16. Nc3 Rhe8 17. Nd2 Nb6 18. f3 Nf7 19. Bf2 Nd6 20. Rfe1 Ndc4 21. Bxc4 Nxc4 22. Nxc4 Bxc4 23. Rd2 b6 24. Red1 Rad8 25. Rxd8 Rxd8 26. Rxd8 Bxd8 27. Nd1 Be6 28. Ne3 Be7 29. Kc1 Bf8 30. Kd2 Kd7 31. Kc3 h5 32. Nc4 g5 33. Ne3 h4 34. Ng4 Be7 35. Kd3 Kc7 36. Kc3 Kb7 37. Kd3 b5 38. Kc3 Bc4 39. Ne3 Be6 40. Ng4 a5 41. b4 axb4+ 42. axb4 Kc7 43. Bc5 Kd7 44. Bxe7 Kxe7 45. Ne3 Kd6 46. Kd3 c5 47. c3 cxb4 48. cxb4 Ke7 49. Kc3 Kd6 50. Kd3 Ke7 51. Kc3 Kd6 52. Kd3 1/2-1/2

[Event "Gibraltar Amateur op-A"]
[Site "Caleta"]
[Date "2019.01.24"]
[Round "4"]
[White "Robson, Paul E"]
[Black "Arias Diaz, Miguel Angel"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1861"]
[BlackElo "1421"]
[PlyCount "119"]
[EventDate "2019.01.21"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GGB"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 Nf6 4. Nf3 Nc6 5. Bb5 Bd7 6. 0-0 g6 7. d3 Bg7 8. Bxc6 Bxc6 9. Qe1 0-0 10. Qh4 Qd7 11. h3 b5 12. f5 b4 13. Ne2 c4 14. Bh6 cxd3 15. cxd3 Bb5 16. Bxg7 Kxg7 17. Rad1 Rac8 18. Ned4 a5 19. fxg6 hxg6 20. Qg5 Rc5 21. Nf5+ Rxf5 22. exf5 Qxf5 23. Qxf5 gxf5 24. Nd4 Bd7 25. Nxf5+ Bxf5 26. Rxf5 e5 27. Rc1 Nd5 28. Rc6 Ne7 29. Rg5+ Kh6 30. Rc7 Nd5 31. Rxe5 dxe5 32. Rc5 Nf4 33. Rxe5 Nxd3 34. Rxa5 Nxb2 35. Rb5 Nd3 36. Rd5 Nc1 37. Rd2 Ra8 38. Rb2 Nxa2 39. Kf2 Ra3 40. Ke1 b3 41. Kd2 Nb4 42. Kc3 Nc6 43. Rd2 Na5 44. Rd5 Ra2 45. Rb5 b2 46. Rxb2 Rxb2 47. Kxb2 Nc4+ 48. Kc3 Ne3 49. g3 Nd1+ 50. Kd4 Nf2 51. h4 Nh1 52. Ke5 Kg7 53. g4 Nf2 54. Kf5 Nd1 55. h5 Ne3+ 56. Kg5 f6+ 57. Kf4 Nc2 58. Kg3 Ne3 59. Kf4 Nd5+ 60. Kg3 0-1

[Event "Gibraltar Amateur op-A"]
[Site "Caleta"]
[Date "2019.01.23"]
[Round "3"]
[White "Arias Diaz, Miguel Angel"]
[Black "Towers, Brian"]
[Result "1/2-1/2"]
[ECO "C06"]
[WhiteElo "1421"]
[BlackElo "1710"]
[PlyCount "72"]
[EventDate "2019.01.21"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GGB"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 a5 8. a4 b6 9. Nf3 cxd4 10. cxd4 Nb4 11. Bb1 Ba6 12. 0-0 f6 13. exf6 Nxf6 14. Re1 Ne4 15. Nc3 Be7 16. Nxe4 dxe4 17. Bxe4 Rc8 18. Bb1 0-0 19. Rxe6 Bc4 20. Re1 Bd5 21. Be4 Bxe4 22. Rxe4 Bf6 23. Be3 Qd5 24. Rg4 Qd7 25. Rg3 Nc2 26. Rc1 Nxd4 27. Nxd4 Bxd4 28. Rxc8 Rxc8 29. h3 Rd8 30. Qxd4 Qxd4 31. Bxd4 Rxd4 32. Rb3 Rd6 33. Kf1 Kf7 34. Ke2 h5 35. Re3 Rc6 36. Rd3 Re6+ 1/2-1/2

[Event "Gibraltar Amateur op-A"]
[Site "Caleta"]
[Date "2019.01.22"]
[Round "2"]
[White "Arias Diaz, Miguel Angel"]
[Black "Neumanova, Monika"]
[Result "1-0"]
[ECO "B44"]
[WhiteElo "1421"]
[BlackElo "1711"]
[PlyCount "32"]
[EventDate "2019.01.21"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GGB"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nb5 d6 6. c4 a6 7. Nd4 Be7 8. Nc3 Nf6 9. Be3 0-0 10. Be2 Re8 11. 0-0 Qc7 12. Rc1 b6 13. Nd5 exd5 14. cxd5 Nxe4 15. Nxc6 b5 16. Bd3 Nf6 1-0

[Event "Gibraltar Amateur op-A"]
[Site "Caleta"]
[Date "2019.01.21"]
[Round "1"]
[White "Kovacevic, Aleksandar S"]
[Black "Arias Diaz, Miguel Angel"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "1793"]
[BlackElo "1421"]
[PlyCount "97"]
[EventDate "2019.01.21"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GGB"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. b4 Nf6 2. Bb2 d6 3. e3 Nbd7 4. Nf3 g6 5. c4 Bg7 6. Nc3 0-0 7. Qc2 b6 8. Be2 Bb7 9. 0-0 e5 10. Ng5 h6 11. Nf3 Nh7 12. d4 Ng5 13. d5 Nxf3+ 14. Bxf3 f5 15. g3 Qg5 16. Nb5 Rac8 17. h4 Qf6 18. Bg2 a6 19. Nc3 Ra8 20. Ne2 g5 21. hxg5 hxg5 22. Rab1 Qh6 23. f3 Rae8 24. Kf2 g4 25. Rh1 Qg6 26. f4 Qf7 27. Rh4 Qe7 28. e4 exf4 29. Nxf4 fxe4 30. Bxg7 Rxf4+ 31. Ke3 Rf7 32. Bc3 Qg5+ 33. Ke2 Rh7 34. Rxh7 Kxh7 35. Rh1+ Kg8 36. Rh8+ Kf7 37. Rh7+ Kf8 38. Rxd7 Bc8 39. Rg7 Qh5 40. Qd1 Re7 41. Qf1+ Rf7 42. Rxf7+ Qxf7 43. Qxf7+ Kxf7 44. Bxe4 Bd7 45. Ke3 Bc8 46. Kf4 b5 47. cxb5 axb5 48. Bd3 Bd7 49. Bf5 1-0

[Event "Pan American-ch U12"]
[Site "Santiago de Chile"]
[Date "2018.07.22"]
[Round "1"]
[White "Arias Diaz, Miguel Angel"]
[Black "Chiappero, Julio Alfredo"]
[Result "1/2-1/2"]
[ECO "B40"]
[WhiteElo "1358"]
[BlackElo "1797"]
[PlyCount "75"]
[EventDate "2018.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHI"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nxc6 bxc6 6. Bd3 Nf6 7. 0-0 d5 8. exd5 cxd5 9. Re1 Be7 10. Nd2 0-0 11. Nf3 Bb7 12. Bf4 Qb6 13. Rb1 Bc5 14. Be3 Bxe3 15. Rxe3 Rad8 16. Ne5 Ba6 17. Rg3 Bxd3 18. cxd3 Rc8 19. Qd2 Qc7 20. Re1 Ne4 21. dxe4 Qxe5 22. Rg5 Qf6 23. exd5 Rcd8 24. d6 Rxd6 25. Rxg7+ Qxg7 26. Qxd6 Qxb2 27. Qg3+ Kh8 28. Qe5+ Qxe5 29. Rxe5 Rd8 30. g3 Kg7 31. Ra5 Rd7 32. Kg2 Kf6 33. Kf3 Kg6 34. Ke3 f5 35. Ra6 Kf6 36. f4 h6 37. h3 h5 38. Ke2 1/2-1/2

[Event "Wch U10"]
[Site "Pocos de Caldas"]
[Date "2017.08.23"]
[Round "2"]
[White "Dev, Shah"]
[Black "Arias Diaz, Miguel Angel"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "1793"]
[BlackElo "1325"]
[PlyCount "47"]
[EventDate "2017.08.22"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 0-0 5. Be2 d6 6. h3 Nbd7 7. 0-0 c5 8. c3 a6 9. a4 cxd4 10. cxd4 Nb6 11. Nc3 Nbd5 12. Nxd5 Nxd5 13. Bh2 Bd7 14. Qb3 Bc6 15. e4 Nc7 16. d5 Bd7 17. Bf4 Rb8 18. Be3 b5 19. a5 e6 20. Bb6 Rc8 21. Rac1 exd5 22. exd5 Be8 23. Rc2 Qd7 24. Rfc1 1-0

[Event "Pan American-ch U10"]
[Site "San Jose"]
[Date "2017.07.03"]
[Round "4"]
[White "Arias Diaz, Miguel Angel"]
[Black "Campos Gomez, Manuel"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1267"]
[BlackElo "1780"]
[PlyCount "42"]
[EventDate "2017.07.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. f4 Nc6 4. Nf3 a6 5. Be2 d5 6. e5 Nge7 7. 0-0 Nf5 8. d3 Be7 9. Qe1 0-0 10. Kh1 b5 11. g4 Nfd4 12. Bd1 Bb7 13. Qg3 b4 14. Ne2 Nxf3 15. Rxf3 d4 16. Kg1 Na5 17. Rf1 Qd5 18. g5 c4 19. dxc4 Nxc4 20. b3 Ne3 21. Bxe3 dxe3 0-1

[Event "South American-ch U10"]
[Site "Santiago de Chile"]
[Date "2016.12.04"]
[Round "6.14"]
[White "Vergara Barreda, Inaki Imanol"]
[Black "Arias Diaz, Miguel Angel"]
[Result "1-0"]
[ECO "B78"]
[WhiteElo "1476"]
[BlackElo "1236"]
[PlyCount "51"]
[EventDate "2016.12.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHI"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Bc4 Nc6 9. Qd2 Bd7 10. 0-0-0 Qb8 11. h4 Rc8 12. Bb3 a5 13. a4 Nxd4 14. Bxd4 b5 15. Bd5 Nxd5 16. Nxd5 Re8 17. Bxg7 Kxg7 18. h5 Rh8 19. Nxe7 Ra6 20. Qd4+ f6 21. Nd5 Qf8 22. h6+ Kg8 23. Nxf6+ Kf7 24. Nxd7 Qd8 25. Qg7+ Ke6 26. Nc5+ 1-0

[Event "South American-ch U10"]
[Site "Santiago de Chile"]
[Date "2016.12.02"]
[Round "3.11"]
[White "Arias Diaz, Miguel Angel"]
[Black "Shimamura Silva, Eduardo Akira"]
[Result "0-1"]
[ECO "B02"]
[WhiteElo "1236"]
[BlackElo "1433"]
[PlyCount "88"]
[EventDate "2016.12.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHI"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nf3 Nxd5 4. Nc3 g6 5. Bc4 Nb6 6. Bb3 Bg7 7. 0-0 0-0 8. d4 Nc6 9. Be3 e5 10. dxe5 Nxe5 11. Nxe5 Bxe5 12. Qxd8 Rxd8 13. Rad1 Bf5 14. Bxb6 axb6 15. Rxd8+ Rxd8 16. f4 Bxc3 17. bxc3 Rd2 18. Rf2 Rd1+ 19. Rf1 Rxf1+ 20. Kxf1 Kg7 21. Kf2 Kf6 22. Kf3 Be6 23. Bxe6 Kxe6 24. Ke4 f5+ 25. Kd4 Kd6 26. h3 c6 27. g4 h5 28. gxh5 gxh5 29. Ke3 Kd5 30. Kf3 h4 31. Ke3 Kc4 32. Kd2 b5 33. a3 c5 34. Kc1 Kxc3 35. Kb1 Kd4 36. Kc1 Ke4 37. Kd2 Kxf4 38. Ke2 Kg3 39. Kf1 Kxh3 40. Kf2 Kg4 41. Kg2 f4 42. Kf2 h3 43. Kg1 Kg3 44. Kh1 f3 0-1

[Event "South American-ch U10"]
[Site "Santiago de Chile"]
[Date "2016.12.02"]
[Round "2.21"]
[White "Oyarzun Marquez, Benjamin Fernando"]
[Black "Arias Diaz, Miguel Angel"]
[Result "0-1"]
[ECO "B20"]
[BlackElo "1236"]
[PlyCount "27"]
[EventDate "2016.12.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHI"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Bc4 d6 3. Qh5 g6 4. Qf3 Nf6 5. Bb5+ Bd7 6. Qb3 Nxe4 7. Nf3 Qb6 8. a4 a6 9. a5 Qxb5 10. c4 Qxb3 11. 0-0 Qxc4 12. Re1 Bg7 13. Na3 Qd5 14. h3 0-1

[Event "South American-ch U10"]
[Site "Santiago de Chile"]
[Date "2016.12.01"]
[Round "1.2"]
[White "Arias Diaz, Miguel Angel"]
[Black "Severich, Axl"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1236"]
[BlackElo "1643"]
[PlyCount "84"]
[EventDate "2016.12.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHI"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. 0-0 0-0 6. Nc3 d6 7. h3 h6 8. Be3 Bb6 9. Bxb6 axb6 10. d4 Re8 11. Re1 exd4 12. Nxd4 Nxd4 13. Qxd4 Be6 14. Bxe6 Rxe6 15. Nd5 Nxd5 16. Qxd5 c6 17. Qd2 Qe7 18. f3 Re8 19. Rad1 d5 20. Qd3 f5 21. Qb3 b5 22. a3 fxe4 23. fxe4 Rxe4 24. Rxe4 Qxe4 25. Rf1 Qe3+ 26. Qxe3 Rxe3 27. Kf2 Re4 28. Re1 Rxe1 29. Kxe1 Kf7 30. Kd2 Ke6 31. Kd3 Ke5 32. Ke3 d4+ 33. Kd3 c5 34. c3 c4+ 35. Kd2 d3 36. Ke3 Kf5 37. g3 g6 38. g4+ Kg5 39. Kf3 Kh4 40. Ke3 Kxh3 41. Kf3 g5 42. Ke3 Kxg4 0-1

[Event "Southamerica Youth U1600 prep"]
[Site "Los Angeles"]
[Date "2016.05.14"]
[Round "3.4"]
[White "Arias Diaz, Miguel Angel"]
[Black "Araya Cardenas, Fernando Anton"]
[Result "1-0"]
[ECO "C42"]
[PlyCount "17"]
[EventDate "2016.05.14"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "CHI"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 e5 3. Nf3 d5 4. exd5 Nxd5 5. Nxe5 Qf6 6. Nxd5 Qxe5+ 7. Qe2 Qe6 8. Nxc7+ Kd8 9. Nxe6+ 1-0

[Event "Southamerica Youth U1600 prep"]
[Site "Los Angeles"]
[Date "2016.05.14"]
[Round "5.2"]
[White "Arias Diaz, Miguel Angel"]
[Black "Vilche Martinez, Nayareth"]
[Result "1-0"]
[ECO "C40"]
[BlackElo "1302"]
[PlyCount "141"]
[EventDate "2016.05.14"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "CHI"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 f6 3. Bc4 c6 4. Nc3 b5 5. Be2 a6 6. 0-0 d5 7. exd5 cxd5 8. d4 e4 9. Nd2 Bd6 10. Nxd5 Bb7 11. Nc3 Bb4 12. a3 Bxc3 13. bxc3 Ne7 14. Re1 Qd6 15. Bg4 f5 16. Bh3 0-0 17. Nb3 Qc6 18. Nc5 Nd5 19. Bd2 Nd7 20. Nxb7 Qxb7 21. Rb1 Qc6 22. Rb3 N7b6 23. f3 Rae8 24. fxe4 fxe4 25. Qg4 e3 26. Bc1 Na4 27. Bb2 Nxb2 28. Rxb2 Qxc3 29. Rbb1 Qxc2 30. Rbc1 Qb2 31. Qg5 Qxd4 32. Kh1 e2 33. Rg1 Re7 34. Rce1 Ref7 35. g3 Ne3 36. Rxe2 Qe4+ 37. Bg2 Qe7 38. Qxe3 Qxe3 39. Rxe3 g6 40. Bd5 Kg7 41. Bxf7 Rxf7 42. Rge1 Kh6 43. Re6 Ra7 44. Rd1 a5 45. Rd4 b4 46. axb4 axb4 47. Rb6 Ra1+ 48. Kg2 Ra2+ 49. Kh3 Rf2 50. Rbxb4 Kh5 51. Rh4+ Kg5 52. Rb5+ Kf6 53. Rxh7 g5 54. Rb6+ Ke5 55. Re7+ Kd5 56. Rg7 Rf5 57. Rb5+ Ke6 58. Rxf5 Kxf5 59. Kg2 Kf6 60. Rb7 Kf5 61. Rb5+ Kg6 62. h4 gxh4 63. gxh4 Kh6 64. Kg3 Kg6 65. Kg4 Kh6 66. Rb6+ Kg7 67. Kg5 Kh7 68. h5 Kg7 69. Rb7+ Kg8 70. Kg6 Kf8 71. h6 1-0

[Event "Southamerica Youth U1600 prep"]
[Site "Los Angeles"]
[Date "2016.05.14"]
[Round "4.3"]
[White "Carcamo Panguilef, Sergio Albe"]
[Black "Arias Diaz, Miguel Angel"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "87"]
[EventDate "2016.05.14"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "CHI"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bc4 Nf6 4. 0-0 g6 5. Ng5 e6 6. d4 cxd4 7. Qxd4 Nc6 8. Qd1 Bg7 9. Re1 0-0 10. Nf3 b6 11. e5 dxe5 12. Qxd8 Rxd8 13. Nc3 Nd5 14. Bd2 Ncb4 15. Rac1 Bb7 16. Red1 Nxc3 17. bxc3 Nd5 18. Bxd5 exd5 19. Be3 e4 20. Ne1 Bxc3 21. Bd2 Bxd2 22. Rxd2 f5 23. h3 f4 24. Kh2 g5 25. a3 h5 26. Rcd1 Rac8 27. Rc1 d4 28. Rcd1 d3 29. cxd3 exd3 30. Rxd3 Rxd3 31. Rxd3 Ba6 32. Rd5 Rc5 33. Rxc5 bxc5 34. f3 Kg7 35. g3 fxg3+ 36. Kxg3 Kf6 37. h4 g4 38. Kf4 Bc8 39. a4 a5 40. Ke4 Bb7+ 41. Kf4 Bc6 42. Ke3 Bxa4 43. Kd2 Kf5 44. Ke3 0-1

[Event "Southamerica Youth U1600 prep"]
[Site "Los Angeles"]
[Date "2016.05.14"]
[Round "2.4"]
[White "Contreras Riquelme, Santiago"]
[Black "Arias Diaz, Miguel Angel"]
[Result "1/2-1/2"]
[ECO "A38"]
[WhiteElo "1269"]
[PlyCount "37"]
[EventDate "2016.05.14"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "CHI"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nf6 3. d3 g6 4. Nf3 Bg7 5. g3 0-0 6. Bg2 Nc6 7. 0-0 e6 8. Bd2 d5 9. Rb1 d4 10. Ne4 Nxe4 11. dxe4 b6 12. Qc2 Bb7 13. e5 Nxe5 14. Nxe5 Bxg2 15. Kxg2 Bxe5 16. Bh6 Re8 17. Qe4 Bg7 18. Bxg7 Kxg7 19. Rbd1 1/2-1/2

