[Event "WchT Seniors 65"]
[Site "Prague"]
[Date "2025.02.24"]
[Round "7.36"]
[White "Sopko, Cassio Roberto"]
[Black "Ten Hacken, Jos"]
[Result "1/2-1/2"]
[ECO "D04"]
[WhiteElo "1835"]
[BlackElo "2020"]
[PlyCount "62"]
[EventDate "2025.02.17"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CB09_2025"]
[SourceDate "2025.02.27"]
[SourceVersion "1"]
[SourceVersionDate "2025.02.27"]
[SourceQuality "1"]
[WhiteTeam "Brazil 65"]
[BlackTeam "Netherlands Orange 65"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "NED"]

1. d4 d5 2. Nf3 c5 3. e3 Nc6 4. b3 cxd4 5. exd4 Nf6 6. Bb2 Bg4 7. Be2 Bxf3 8. Bxf3 e6 9. 0-0 Bd6 10. c4 0-0 11. Na3 Rc8 12. Nb5 Bb8 13. Rc1 a6 14. cxd5 exd5 15. Nc3 b5 16. g3 Ba7 17. Ne2 Re8 18. Re1 Qd7 19. Qd3 Nb4 20. Qb1 Ne4 21. Rxc8 Qxc8 22. Nf4 Nd2 23. Rxe8+ Qxe8 24. Qd1 Qe1+ 25. Kg2 Qxd1 26. Bxd1 g5 27. Nh5 Nd3 28. Ba1 Ne1+ 29. Kg1 Nef3+ 30. Kg2 Ne1+ 31. Kg1 Nef3+ 1/2-1/2

[Event "Rio de Janeiro Duchamp op 5th"]
[Site "Rio de Janeiro"]
[Date "2024.12.07"]
[Round "7"]
[White "Sopko, Cassio Roberto"]
[Black "Mattos, Bernardo Cunha"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1852"]
[BlackElo "1735"]
[PlyCount "100"]
[EventDate "2024.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CB50_2024"]
[SourceDate "2024.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.11.01"]
[SourceQuality "2"]

1. d4 d5 2. g3 Nf6 3. Bg2 Bf5 4. Nf3 e6 5. b3 Be7 6. Bb2 h6 7. Nbd2 0-0 8. 0-0 c5 9. c4 Nc6 10. cxd5 exd5 11. dxc5 Bxc5 12. Rc1 Bb6 13. a3 a5 14. e3 Qd6 15. Nc4 Qd8 16. Nxb6 Qxb6 17. Bxf6 gxf6 18. Qxd5 Be6 19. Qh5 Kg7 20. Nh4 Ne7 21. Qc5 Qxc5 22. Rxc5 Rfc8 23. Rb5 Rc7 24. h3 Bd7 25. Rh5 f5 26. e4 fxe4 27. Bxe4 Bxh3 28. Re1 Be6 29. Rb5 Rb8 30. Rd1 b6 31. b4 axb4 32. Rxb4 Rc4 33. Rdb1 Rxb4 34. Rxb4 Nd5 35. Bxd5 Bxd5 36. Nf5+ Kh7 37. a4 Be6 38. Nd4 Bd5 39. f4 Ra8 40. Kf2 Be6 41. Ke3 Bd7 42. Rxb6 Bxa4 43. Nf5 Re8+ 44. Kd4 Re6 45. Rxe6 fxe6 46. Nh4 Kg7 47. Ke5 Bb3 48. Nf3 Kf7 49. Nd4 Ba2 50. g4 Bc4 1/2-1/2

[Event "Rio de Janeiro Duchamp op 5th"]
[Site "Rio de Janeiro"]
[Date "2024.12.07"]
[Round "8"]
[White "Trombini, Fabio"]
[Black "Sopko, Cassio Roberto"]
[Result "1/2-1/2"]
[ECO "A10"]
[WhiteElo "1872"]
[BlackElo "1852"]
[PlyCount "98"]
[EventDate "2024.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CB50_2024"]
[SourceDate "2024.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.11.01"]
[SourceQuality "2"]

1. Nf3 f5 2. e3 d5 3. c4 e6 4. b3 Nf6 5. Bb2 c6 6. Be2 Be7 7. 0-0 0-0 8. Qc2 a5 9. Nc3 Ne4 10. d3 Nxc3 11. Bxc3 Bf6 12. Bxf6 Qxf6 13. d4 Nd7 14. cxd5 exd5 15. Bd3 g6 16. a3 b6 17. Ne5 Nxe5 18. dxe5 Qxe5 19. Qxc6 Be6 20. Qxb6 Rfb8 21. Qc6 Rc8 22. Qa4 Qc3 23. Be2 Rab8 24. Rad1 Qxb3 25. Qxa5 Ra8 26. Qb4 Rcb8 27. Qe7 Re8 28. Qf6 Rxa3 29. Rb1 Qc3 30. Qh4 Ra7 31. Bf3 Qe5 32. Qb4 Rd7 33. Rfd1 Red8 34. g3 d4 35. Rxd4 Rxd4 36. exd4 Qxd4 37. Qe7 Qd7 38. Qf6 Rf8 39. Qe5 Bf7 40. Rb7 Qe6 41. Qb2 Re8 42. Kg2 Qe5 43. Qa3 Bd5 44. Ra7 Bxf3+ 45. Qxf3 Qe4 46. h4 h5 47. Qxe4 Rxe4 48. Kf1 f4 49. Kg2 fxg3 1/2-1/2

[Event "Rio de Janeiro Duchamp op 5th"]
[Site "Rio de Janeiro"]
[Date "2024.12.03"]
[Round "3"]
[White "Sopko, Cassio Roberto"]
[Black "Santos Filho, Tadeu Souza"]
[Result "0-1"]
[ECO "A49"]
[WhiteElo "1852"]
[BlackElo "1992"]
[PlyCount "148"]
[EventDate "2024.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CB50_2024"]
[SourceDate "2024.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.11.01"]
[SourceQuality "2"]

1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nf3 0-0 5. 0-0 d6 6. b3 c6 7. Bb2 a5 8. c4 h6 9. a3 Na6 10. Nc3 Bf5 11. Nh4 Bd7 12. Qd3 Qc8 13. Na4 Qc7 14. Rac1 b6 15. e4 e5 16. dxe5 dxe5 17. Rfd1 Be6 18. Nf3 Nd7 19. Qd6 Rfc8 20. Qxc7 Rxc7 21. h3 Kf8 22. Bf1 f6 23. Kg2 Kf7 24. Nd2 h5 25. f4 Bh6 26. fxe5 fxe5 27. Rb1 Bg7 28. Nf3 Bf6 29. Bd3 Ke7 30. h4 Bg4 31. Rf1 Rb7 32. Rf2 Rf8 33. Rbf1 Rbb8 34. Bc2 Ke6 35. Bc1 Bxf3+ 36. Rxf3 Be7 37. Rxf8 Bxf8 38. Rf2 Be7 39. Kf1 Rf8 40. Rxf8 Bxf8 41. Ke2 Nac5 42. Nxc5+ Bxc5 43. a4 Bb4 44. Be3 Bc5 45. Bxc5 Nxc5 46. Kd2 Kd6 47. Kc3 Na6 48. Bd1 Nb4 49. g4 hxg4 50. Bxg4 c5 51. h5 gxh5 52. Bxh5 Ke7 53. Kd2 Kf6 54. Bd1 Kg5 55. Ke3 Kh4 56. Kf2 Nc6 57. Kg2 Nd4 58. Kh2 Ne6 59. Kg2 Ng5 60. Kf2 Nxe4+ 61. Ke3 Nd6 62. Bc2 Kg4 63. Bb1 Kg5 64. Bh7 Kf6 65. Bg8 Ke7 66. Bh7 Ke6 67. Bg8+ Kf6 68. Bh7 Nf7 69. Be4 Ng5 70. Bd5 Kf5 71. Bb7 Ne6 72. Bd5 Kf6 73. Bb7 Nd4 74. Ke4 Ke6 0-1

[Event "Rio de Janeiro Duchamp op 5th"]
[Site "Rio de Janeiro"]
[Date "2024.12.02"]
[Round "2"]
[White "Abreu, Gabriel Vasconcello"]
[Black "Sopko, Cassio Roberto"]
[Result "0-1"]
[ECO "A80"]
[BlackElo "1852"]
[PlyCount "150"]
[EventDate "2024.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CB50_2024"]
[SourceDate "2024.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.11.01"]
[SourceQuality "2"]

1. d4 f5 2. Nc3 d5 3. Bf4 c6 4. g3 Nf6 5. Bg2 e6 6. Nf3 Be7 7. Ne5 Nbd7 8. h4 Qb6 9. Na4 Qa5+ 10. c3 b5 11. Nxc6 Qxa4 12. b3 Qa6 13. Nxe7 Kxe7 14. f3 Bb7 15. Qd3 Rac8 16. b4 Rc4 17. 0-0 Rhc8 18. Rfc1 Qb6 19. a4 a6 20. axb5 axb5 21. Ra3 e5 22. Bg5 e4 23. fxe4 dxe4 24. Qe3 Qe6 25. Qf4 Kf7 26. Bxf6 Nxf6 27. Ra7 R8c7 28. Bh3 g6 29. Kh2 Kg7 30. g4 fxg4 31. Bg2 Rf7 32. Qb8 Rc8 33. Qg3 Nh5 34. Qe5+ Qxe5+ 35. dxe5 Bd5 36. Rxf7+ Kxf7 37. Rd1 g3+ 38. Kg1 Ke7 39. Rxd5 Rxc3 40. Rc5 Rb3 41. Bxe4 Rxb4 42. Bd3 Rxh4 43. Bxb5 Nf4 44. e3 Ne6 45. Rd5 Rh2 46. Rd7+ Kf8 47. Rd6 Ng5 48. Bc6 Nh3+ 49. Kf1 Rf2+ 50. Ke1 g2 51. Bxg2 Rxg2 52. Rd7 h5 53. e6 Ng5 54. Kf1 Rg4 55. Rd4 Rxd4 56. exd4 Nxe6 57. d5 Nf4 58. d6 Ke8 59. Kf2 g5 60. Ke3 Kd7 61. Ke4 h4 62. Kf5 h3 63. Kxg5 h2 64. Kxf4 h1Q 65. Ke5 Qh2+ 66. Kf6 Kxd6 67. Kf5 Qe2 68. Kf4 Kd5 69. Kf5 Qe4+ 70. Kf6 Qe5+ 71. Kg6 Qf4 72. Kh7 Qg3 73. Kh6 Ke6 74. Kh7 Kf6 75. Kh8 Qg7# 0-1

[Event "Rio de Janeiro Duchamp op 5th"]
[Site "Rio de Janeiro"]
[Date "2024.12.02"]
[Round "1"]
[White "Sopko, Cassio Roberto"]
[Black "Marra, Eduardo da Costa"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "1852"]
[BlackElo "2188"]
[PlyCount "103"]
[EventDate "2024.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CB50_2024"]
[SourceDate "2024.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.11.01"]
[SourceQuality "2"]

1. d4 Nf6 2. g3 g6 3. Bg2 c5 4. e3 Bg7 5. Nf3 0-0 6. 0-0 d5 7. b3 cxd4 8. exd4 Nc6 9. Bb2 Bf5 10. a3 Rc8 11. Nbd2 Qb6 12. Re1 Ne4 13. Nxe4 Bxe4 14. c3 e6 15. Nd2 Bxg2 16. Kxg2 Rc7 17. b4 Ne7 18. Nb3 Nf5 19. a4 Rfc8 20. a5 Qb5 21. Qe2 Nd6 22. Nd2 Qxe2 23. Rxe2 Nb5 24. Nb1 Bh6 25. a6 b6 26. h4 Rc6 27. Na3 Nd6 28. f3 b5 29. f4 Rb6 30. Kf3 Rcc6 31. g4 Rxa6 32. Ree1 Rab6 33. g5 Bf8 34. h5 Ne4 35. hxg6 hxg6 36. Nb1 Ra6 37. Rxa6 Rxa6 38. Na3 Nxc3 39. Rc1 Na4 40. Bc3 Rc6 41. Bd2 Rxc1 42. Bxc1 Bxb4 43. Nxb5 a6 44. Na3 Kf8 45. Nc2 Bd6 46. Ba3 Bxa3 47. Nxa3 Ke7 48. Nc2 Kd6 49. Ke3 Kc6 50. Nb4+ Kb5 51. Nd3 Nb6 52. Ne5 0-1

[Event "Pan American-ch Seniors 65"]
[Site "Lima"]
[Date "2023.05.01"]
[Round "9"]
[White "Sopko, Cassio Roberto"]
[Black "Merma, Isaias"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "1832"]
[BlackElo "1569"]
[PlyCount "48"]
[EventDate "2023.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 d5 3. Bg2 c6 4. Nf3 Bf5 5. b3 e6 6. Bb2 Nbd7 7. Nbd2 Be7 8. 0-0 0-0 9. c4 h6 10. a4 Ne4 11. Rc1 Bh7 12. Ne5 Nxd2 13. Qxd2 Nxe5 14. dxe5 dxc4 15. Qxd8 Rfxd8 16. Rxc4 Rd2 17. Bc3 Rxe2 18. Ra1 Rc2 19. Be1 Rd8 20. Ba5 b6 21. Be1 Rxc4 22. bxc4 Bd3 23. Rd1 Bxc4 24. Rxd8+ Bxd8 0-1

[Event "Pan American-ch Seniors 65"]
[Site "Lima"]
[Date "2023.04.30"]
[Round "7"]
[White "Madeira, Wagner Martins"]
[Black "Sopko, Cassio Roberto"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "2040"]
[BlackElo "1832"]
[PlyCount "128"]
[EventDate "2023.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. d4 exd4 5. Nxd4 Nxd4 6. Qxd4 d6 7. Bf4 Be6 8. 0-0-0 Be7 9. Be2 a6 10. g4 Kf8 11. Rhg1 c5 12. Qe3 Ne8 13. Nd5 Qa5 14. a3 b5 15. Nxe7 Kxe7 16. Bxd6+ Nxd6 17. Qxc5 Rhc8 18. Qxd6+ Ke8 19. Rd2 Rd8 20. Qb4 Qc7 21. Rgd1 Qf4 22. f3 Rac8 23. Kb1 Qe3 24. Rxd8+ Rxd8 25. Rxd8+ Kxd8 26. Qd6+ Ke8 27. Qd1 Ke7 28. b3 Qc5 29. Ka2 a5 30. Qd2 b4 31. axb4 axb4 32. Bd3 h6 33. f4 Qa7+ 34. Kb2 Qa3+ 35. Kb1 Bxg4 36. Qg2 Be6 37. Qxg7 Bxb3 38. Qb2 Qxb2+ 39. Kxb2 Ba4 40. Kc1 Kd6 41. Kd2 Bc6 42. Ke3 Kc5 43. e5 Bd5 44. f5 b3 45. cxb3 Bxb3 46. Kf4 Kd4 47. Ba6 Kc5 48. Bc8 Bc2 49. f6 Bb3 50. e6 Kd6 51. e7 Ba4 52. Ke4 Bc6+ 53. Kd4 Ba4 54. Bf5 Be8 55. h4 Ba4 56. Ke4 Bc2+ 57. Kf4 Ba4 58. Bg4 Be8 59. Ke4 Z0 60. Kf5 Bd7+ 61. Ke4 Be8 62. Kd4 Bc6 63. Bf3 Be8 64. Bd5 h5 1-0

[Event "Pan American-ch Seniors 65"]
[Site "Lima"]
[Date "2023.04.30"]
[Round "8"]
[White "Sopko, Cassio Roberto"]
[Black "Sosa Patino, Carlos"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "1832"]
[BlackElo "1876"]
[PlyCount "66"]
[EventDate "2023.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 c5 3. e3 g6 4. Bg2 Bg7 5. Nf3 0-0 6. 0-0 cxd4 7. exd4 d5 8. b3 Nc6 9. Bb2 Bg4 10. h3 Bf5 11. Nh4 Bd7 12. Na3 g5 13. Nf3 g4 14. hxg4 Bxg4 15. c3 e5 16. Qc1 exd4 17. Nxd4 Nxd4 18. cxd4 Qd7 19. Qf4 Rac8 20. Rac1 Qf5 21. Qxf5 Bxf5 22. Rfe1 a6 23. b4 Bh6 24. f4 Rfd8 25. b5 Bf8 26. bxa6 bxa6 27. Rxc8 Rxc8 28. Bf1 Rb8 29. Bc1 Ne4 30. Kh2 Nf6 31. Bh3 Be4 32. Re2 Rb6 33. Rb2 Rc6 0-1

[Event "Pan American-ch Seniors 65"]
[Site "Lima"]
[Date "2023.04.29"]
[Round "6"]
[White "Sopko, Cassio Roberto"]
[Black "Agrasot, Antonio"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "1832"]
[BlackElo "1518"]
[PlyCount "57"]
[EventDate "2023.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 d5 2. g3 g6 3. Bg2 Nf6 4. Nf3 Bg7 5. b3 c6 6. Bb2 0-0 7. 0-0 Bg4 8. Ne5 Nbd7 9. Nxg4 Nxg4 10. e4 Ngf6 11. e5 Ne8 12. Qe2 e6 13. Nd2 Nc7 14. c4 f5 15. exf6 Qxf6 16. Bh3 Rae8 17. Rae1 b6 18. Ba3 c5 19. dxc5 bxc5 20. f4 a5 21. Nf3 Rf7 22. Ne5 Nxe5 23. fxe5 Qe7 24. Rxf7 Kxf7 25. Qf2+ Kg8 26. Bxc5 Qf7 27. Qxf7+ Kxf7 28. Rf1+ Kg8 29. Bd6 1-0

[Event "Pan American-ch Seniors 65"]
[Site "Lima"]
[Date "2023.04.28"]
[Round "4"]
[White "Silva, Cesar"]
[Black "Sopko, Cassio Roberto"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1980"]
[BlackElo "1832"]
[PlyCount "81"]
[EventDate "2023.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 Be7 4. Nf3 Nc6 5. Nc3 d6 6. h3 Be6 7. Nd5 Qd7 8. a4 h6 9. c3 a6 10. b4 0-0 11. Qb3 Rfe8 12. Ne3 Rad8 13. Bxe6 Qxe6 14. Nd5 Qd7 15. 0-0 Nxd5 16. exd5 Nb8 17. Qc4 c6 18. Bd2 Rc8 19. Rfe1 Bf6 20. Rac1 cxd5 21. Qxd5 Qc6 22. Qe4 Qxe4 23. dxe4 Rc4 24. g3 Rec8 25. Kg2 Nd7 26. a5 Bd8 27. Rcd1 Nf6 28. Re3 Rxe4 29. Rd3 Be7 30. Nh4 d5 31. Nf5 Kf8 32. f3 Rec4 33. Ne3 R4c7 34. Nxd5 Nxd5 35. Rxd5 Bf6 36. Rc1 Be7 37. b5 Rc5 38. Rxc5 Rxc5 39. bxa6 bxa6 40. c4 Bd8 41. Bb4 1-0

[Event "Pan American-ch Seniors 65"]
[Site "Lima"]
[Date "2023.04.28"]
[Round "5"]
[White "Sopko, Cassio Roberto"]
[Black "Robles Pacheco, Sixto Hernan"]
[Result "1-0"]
[ECO "E09"]
[WhiteElo "1832"]
[PlyCount "72"]
[EventDate "2023.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 d5 2. g3 Nf6 3. Bg2 e6 4. Nf3 Be7 5. b3 0-0 6. Bb2 Nbd7 7. 0-0 b6 8. Nbd2 Bb7 9. c4 c6 10. Rc1 Rc8 11. Qc2 h6 12. e4 dxe4 13. Nxe4 c5 14. Nxf6+ Nxf6 15. dxc5 Bxc5 16. Rcd1 Qe7 17. Bd4 Bxd4 18. Nxd4 Bxg2 19. Kxg2 Qb7+ 20. Kg1 Rfd8 21. Nb5 Rd7 22. Nd6 Rxd6 23. Rxd6 Qe4 24. Qxe4 Nxe4 25. Rd7 a5 26. Rfd1 a4 27. Rd8+ Rxd8 28. Rxd8+ Kh7 29. Rb8 axb3 30. axb3 Kg6 31. Rxb6 Kf5 32. c5 Ke5 33. b4 Kd5 34. Rb7 Kc4 35. Rxf7 Kxb4 36. Rf4 Kc4 1-0

[Event "Pan American-ch Seniors 65"]
[Site "Lima"]
[Date "2023.04.27"]
[Round "3"]
[White "Okamura, Milton Kasuo"]
[Black "Sopko, Cassio Roberto"]
[Result "1-0"]
[ECO "A84"]
[WhiteElo "1995"]
[BlackElo "1832"]
[PlyCount "129"]
[EventDate "2023.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 f5 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bf4 Nf6 6. e3 Bd6 7. Bd3 Ne4 8. 0-0 0-0 9. Rc1 Qe7 10. Bxd6 Qxd6 11. a3 Nd7 12. Qc2 Kh8 13. Rfd1 Qe7 14. b4 Ndf6 15. Ne5 Nxc3 16. Qxc3 Ne4 17. Qb2 a6 18. a4 Bd7 19. c5 Rfb8 20. Qc2 Be8 21. Rb1 Nf6 22. f3 Nd7 23. Nxd7 Qxd7 24. b5 axb5 25. axb5 Qd8 26. b6 g6 27. Ra1 Bd7 28. f4 Kg7 29. Qb2 Kf6 30. Ra7 Bc8 31. Rda1 Rxa7 32. Rxa7 h6 33. Qf2 Kg7 34. g4 Kh7 35. Qg3 h5 36. gxh5 gxh5 37. h4 Qg8 38. Qg5 Qxg5+ 39. hxg5 Bd7 40. Kh2 Kg6 41. Kh3 h4 42. Ba6 Bc8 43. Be2 Bd7 44. Kxh4 Rh8+ 45. Kg3 Rb8 46. Ra1 Rh8 47. Bf3 Kg7 48. Ra7 Rb8 49. Bh5 Kf8 50. Kh4 Kg7 51. Be2 Kg6 52. Kg3 Kg7 53. Kg2 Kg6 54. Ra1 Rh8 55. Rh1 Rxh1 56. Kxh1 Bc8 57. Kg2 Bd7 58. Kg3 Bc8 59. Kh4 Bd7 60. Bd1 Bc8 61. Bh5+ Kg7 62. Be8 Kf8 63. g6 Kxe8 64. Kg5 Ke7 65. Kh6 1-0

[Event "Pan American-ch Seniors 65"]
[Site "Lima"]
[Date "2023.04.27"]
[Round "2"]
[White "Sopko, Cassio Roberto"]
[Black "Castro Murillo, Gonzalo Fernando"]
[Result "1/2-1/2"]
[ECO "D78"]
[WhiteElo "1832"]
[BlackElo "2095"]
[PlyCount "45"]
[EventDate "2023.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 g6 3. Bg2 d5 4. Nf3 Bg7 5. b3 0-0 6. Bb2 c6 7. 0-0 Nbd7 8. Nbd2 Re8 9. c4 a5 10. a4 Qc7 11. Rc1 e6 12. Qc2 Nb8 13. e4 Na6 14. Ba3 Nb4 15. Bxb4 axb4 16. e5 Nd7 17. Rfe1 Qb6 18. Bh3 f6 19. exf6 Nxf6 20. c5 Qd8 21. Rcd1 Re7 22. Ne5 Qe8 23. f4 1/2-1/2

[Event "Pan American-ch Seniors 65"]
[Site "Lima"]
[Date "2023.04.26"]
[Round "1"]
[White "Arias Formoso, Rodolfo"]
[Black "Sopko, Cassio Roberto"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "2043"]
[BlackElo "1832"]
[PlyCount "122"]
[EventDate "2023.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 e6 3. Bf4 Nf6 4. e3 d5 5. Be2 Bd6 6. Nbd2 c5 7. c3 Nc6 8. 0-0 0-0 9. Bg3 Bxg3 10. hxg3 b6 11. Rc1 Ne4 12. c4 cxd4 13. cxd5 Nb4 14. Nxd4 Nxd2 15. Qxd2 Nxd5 16. Bf3 Rf6 17. Rfd1 Bb7 18. Nxe6 Rxe6 19. Bxd5 Bxd5 20. Qxd5 Qxd5 21. Rxd5 Rf6 22. Rc7 a6 23. Rdd7 Rg6 24. Kf1 b5 25. Ke2 h6 26. Kf3 Re8 27. Ra7 Ree6 28. Rd8+ Kh7 29. b4 h5 30. Rd5 Ref6 31. Rc7 Rg4 32. a3 Kh6 33. Rdc5 Rgg6 34. Rd7 Rg4 35. Rd4 Rg5 36. Rcd5 Rgg6 37. Kf4 Rg4+ 38. Ke5 Rg5 39. Rf4 Rg4 40. Rxf5 Rxf5+ 41. Kxf5 g6+ 42. Ke5 Rc4 43. Rd6 Rc2 44. Rxa6 Rxf2 45. Ra5 Kg5 46. Ke4 Kg4 47. Rxb5 Ra2 48. Ra5 Kxg3 49. Rg5+ Kf2 50. Rxg6 Rxa3 51. b5 Rxe3+ 52. Kd5 h4 53. b6 Rb3 54. Kc6 Rc3+ 55. Kb7 Rg3 56. Rh6 Rg4 57. Kc8 Kxg2 58. b7 Rg8+ 59. Kc7 Rg7+ 60. Kb6 Rxb7+ 61. Kxb7 h3 1/2-1/2

[Event "BRA-ch Seniors 50"]
[Site "Joao Pessoa"]
[Date "2022.08.21"]
[Round "5"]
[White "Sopko, Cassio Roberto"]
[Black "Pereira Fo, Hildebrando Apolon"]
[Result "1-0"]
[ECO "A11"]
[WhiteElo "1821"]
[BlackElo "1532"]
[PlyCount "69"]
[EventDate "2022.08.19"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. d4 d5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. 0-0 0-0 6. c4 c6 7. b3 b6 8. Bb2 Bb7 9. Nbd2 Nbd7 10. Qc2 c5 11. e3 Rc8 12. a4 cxd4 13. exd4 dxc4 14. bxc4 Nd5 15. Qb3 Nc7 16. a5 Na6 17. Bc3 Re8 18. Rfd1 Qc7 19. Rab1 Bd5 20. Ne5 Ndc5 21. Qb5 Bxg2 22. Kxg2 Bxe5 23. dxc5 Qb7+ 24. c6 Rxc6 25. Qxe5 Rc5+ 26. Qe4 Qxe4+ 27. Nxe4 Rxc4 28. Rd4 Rec8 29. axb6 Rxd4 30. Bxd4 axb6 31. Rxb6 Nc7 32. Rc6 Kf8 33. Bb6 Ke8 34. Rxc7 Rb8 35. Bc5 1-0

[Event "BRA-ch Seniors 50"]
[Site "Joao Pessoa"]
[Date "2022.08.20"]
[Round "4"]
[White "Pereira, Sergio1"]
[Black "Sopko, Cassio Roberto"]
[Result "1/2-1/2"]
[ECO "A85"]
[WhiteElo "2093"]
[BlackElo "1821"]
[PlyCount "56"]
[EventDate "2022.08.19"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. c4 f5 2. Nc3 e6 3. d4 d5 4. Nf3 c6 5. e3 Nf6 6. Bd3 Bd6 7. Qc2 Ne4 8. 0-0 0-0 9. Ne5 Bxe5 10. dxe5 Nd7 11. f3 Nec5 12. f4 Nxd3 13. Qxd3 Nc5 14. Qe2 Bd7 15. b4 Ne4 16. Nxe4 fxe4 17. Bb2 a5 18. Ba3 Rf7 19. bxa5 Qxa5 20. Bd6 Qa6 21. Rac1 g6 22. Qc2 Qa4 23. Qc3 b5 24. cxb5 cxb5 25. Qd2 Kg7 26. a3 Rc8 27. Bb4 Rc4 28. Rxc4 bxc4 1/2-1/2

[Event "BRA-ch Seniors 50"]
[Site "Joao Pessoa"]
[Date "2022.08.20"]
[Round "3"]
[White "Sopko, Cassio Roberto"]
[Black "Leao, Flavio Sanchez"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1821"]
[BlackElo "1824"]
[PlyCount "33"]
[EventDate "2022.08.19"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 d5 3. Bg2 e6 4. Nf3 c5 5. e3 Nc6 6. 0-0 Bd6 7. b3 cxd4 8. exd4 0-0 9. Bb2 Qc7 10. c4 b6 11. Nc3 Ba6 12. Nb5 Bxb5 13. cxb5 Ne7 14. Qd3 Rac8 15. Rac1 Qb7 16. Rfd1 Rxc1 17. Rxc1 1/2-1/2

[Event "BRA-ch Seniors 50"]
[Site "Joao Pessoa"]
[Date "2022.08.19"]
[Round "2"]
[White "Camara, Jose Arruda"]
[Black "Sopko, Cassio Roberto"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "1874"]
[BlackElo "1821"]
[PlyCount "74"]
[EventDate "2022.08.19"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d3 d5 4. exd5 Qxd5 5. Nc3 Bb4 6. Bd2 Bxc3 7. Bxc3 Nc6 8. Be2 0-0 9. 0-0 Nd4 10. Nxd4 exd4 11. Bf3 Qd6 12. Bd2 Be6 13. Bg5 Nd5 14. Re1 Rae8 15. Bd2 b6 16. g3 Bd7 17. Rxe8 Rxe8 18. Qf1 a5 19. a3 h6 20. Re1 Re6 21. Re4 Nf6 22. Rxe6 Bxe6 23. Bf4 Qc5 24. Qe2 a4 25. h4 Qb5 26. Bc1 Bd5 27. g4 Bxf3 28. Qxf3 Qd5 29. Qxd5 Nxd5 30. Kg2 Kf8 31. Kf3 Ke7 32. Ke4 Nf6+ 33. Kf4 Ke6 34. g5 hxg5+ 35. hxg5 Nd5+ 36. Ke4 c5 37. Bd2 f5+ 1/2-1/2

[Event "BRA-ch Seniors 50"]
[Site "Joao Pessoa"]
[Date "2022.08.19"]
[Round "1"]
[White "Sopko, Cassio Roberto"]
[Black "De Albuquerque, Helio Sergio"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "1821"]
[BlackElo "1688"]
[PlyCount "57"]
[EventDate "2022.08.19"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. d4 c6 2. g3 Qc7 3. Bg2 d5 4. Nf3 Nd7 5. e4 e5 6. exd5 e4 7. dxc6 Qxc6 8. Ng5 Ngf6 9. Qe2 Be7 10. Nxe4 Kd8 11. 0-0 Nxe4 12. Bxe4 Qb6 13. c3 Re8 14. Qd3 h6 15. Nd2 g5 16. Nc4 Qf6 17. f4 Qg7 18. Ne5 a5 19. fxg5 Nxe5 20. dxe5+ Kc7 21. gxh6 Bc5+ 22. Kh1 Qg4 23. Bf4 Rd8 24. Qc4 Kb6 25. b4 axb4 26. cxb4 Bd4 27. Bd5 Bxa1 28. Qc5+ Ka6 29. Qa5# 1-0

[Event "Pan American-ch Seniors 50"]
[Site "Florianopolis"]
[Date "2022.06.26"]
[Round "9"]
[White "Santanna, Paulo"]
[Black "Sopko, Cassio Roberto"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "1893"]
[BlackElo "1826"]
[PlyCount "49"]
[EventDate "2022.06.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 f5 2. Nc3 d5 3. Bf4 c6 4. e3 Nf6 5. Bd3 e6 6. h3 Bd6 7. Nge2 a5 8. g4 Na6 9. gxf5 exf5 10. Bxd6 Qxd6 11. Na4 Nb4 12. c3 Nxd3+ 13. Qxd3 g6 14. Nb6 Rb8 15. 0-0-0 Be6 16. f3 0-0 17. Nf4 Bf7 18. h4 Rfe8 19. Rdg1 c5 20. h5 cxd4 21. Qxd4 Rbd8 22. hxg6 Bxg6 23. Nxg6 Ng4 24. Qh8+ Kf7 25. Rxh7+ 1-0

[Event "Pan American-ch Seniors 50"]
[Site "Florianopolis"]
[Date "2022.06.25"]
[Round "8"]
[White "Sopko, Cassio Roberto"]
[Black "Mazzuco, Adir Jr"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1826"]
[PlyCount "86"]
[EventDate "2022.06.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 d5 2. g3 c6 3. Bg2 Nf6 4. b3 e6 5. Bb2 Nbd7 6. Nf3 c5 7. 0-0 cxd4 8. Bxd4 Bc5 9. Bb2 0-0 10. a3 a5 11. Nbd2 b5 12. c4 Ba6 13. cxd5 Nxd5 14. Ne4 Rc8 15. Nxc5 Rxc5 16. b4 Rc8 17. bxa5 Qxa5 18. Qd4 N7f6 19. Rfc1 Qd8 20. Rxc8 Qxc8 21. Rc1 Qd8 22. Ne5 Ne7 23. Nc6 Nxc6 24. Rxc6 Qxd4 25. Bxd4 Bb7 26. Rb6 Bxg2 27. Kxg2 Ra8 28. Rxb5 h6 29. Bxf6 gxf6 30. Rb3 Ra4 31. f4 f5 32. h3 h5 33. Kf3 Kg7 34. g4 hxg4+ 35. hxg4 fxg4+ 36. Kxg4 Kg6 37. e3 e5 38. Kf3 exf4 39. exf4 f6 40. Kg4 f5+ 41. Kg3 Kh5 42. Rc3 Re4 43. Rb3 Ra4 1/2-1/2

[Event "Pan American-ch Seniors 50"]
[Site "Florianopolis"]
[Date "2022.06.25"]
[Round "7"]
[White "Souza Neves, Andrey Marcelo"]
[Black "Sopko, Cassio Roberto"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2097"]
[BlackElo "1826"]
[PlyCount "89"]
[EventDate "2022.06.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 Bxc3 5. dxc3 d6 6. Qd3 Nbd7 7. Be3 Nb6 8. Bb3 Be6 9. Bxe6 fxe6 10. 0-0-0 0-0 11. h4 Qe8 12. Kb1 d5 13. Ng5 Nbd7 14. f3 c6 15. g4 b6 16. Rdg1 Qe7 17. h5 Rae8 18. h6 g6 19. c4 Nc5 20. Qe2 d4 21. Bc1 Nfd7 22. Nh3 Na4 23. Ka1 Qb4 24. a3 Qd6 25. Re1 Ndc5 26. f4 exf4 27. e5 Qc7 28. Nxf4 Qe7 29. Nh3 b5 30. cxb5 cxb5 31. Bg5 Qb7 32. Bf6 b4 33. Qc4 bxa3 34. b4 a5 35. Rb1 a2 36. bxc5 axb1Q+ 37. Rxb1 Qf3 38. Qxa4 Qxh3 39. c6 Qc3+ 40. Ka2 Rb8 41. Rb7 Rxb7 42. cxb7 Rb8 43. Be7 d3 44. Bd6 dxc2 45. Bxb8 1-0

[Event "Pan American-ch Seniors 50"]
[Site "Florianopolis"]
[Date "2022.06.24"]
[Round "6"]
[White "Sopko, Cassio Roberto"]
[Black "Da Silva, Joao Carlos Orguim"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1826"]
[BlackElo "1774"]
[PlyCount "109"]
[EventDate "2022.06.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 d5 2. g3 a6 3. Bg2 e6 4. b3 b5 5. Bb2 Bb7 6. Nf3 Nd7 7. 0-0 Ngf6 8. Nbd2 Be7 9. Re1 0-0 10. c4 c6 11. Qc2 Rc8 12. e4 dxe4 13. Nxe4 Nxe4 14. Qxe4 Nf6 15. Qe2 Bb4 16. Red1 Re8 17. a3 Bf8 18. Ne5 Qb6 19. c5 Qc7 20. b4 Nd5 21. f4 f6 22. Nd3 g6 23. h4 Re7 24. Re1 Rce8 25. Qg4 Bc8 26. Bxd5 exd5 27. Qf3 Bf5 28. Rxe7 Qxe7 29. Re1 Be4 30. Qd1 Qd7 31. Nf2 f5 32. Re3 Re7 33. Nd3 Bxd3 34. Rxe7 Qxe7 35. Qxd3 Qe1+ 36. Kg2 Qe4+ 37. Qxe4 dxe4 38. d5 Kf7 39. dxc6 Ke8 40. Bf6 Be7 41. c7 Kd7 42. Bxe7 Kxc7 43. Kf2 Kc6 44. Ke3 Kd5 45. Bf6 Ke6 46. Bc3 Kd5 47. Bd2 a5 48. Be1 a4 49. Bd2 Ke6 50. Kd4 h6 51. Be3 Kf6 52. Kd5 g5 53. hxg5+ hxg5 54. fxg5+ Kg6 55. c6 1-0

[Event "Pan American-ch Seniors 50"]
[Site "Florianopolis"]
[Date "2022.06.23"]
[Round "5"]
[White "Ferreira de Souza, Ricardo"]
[Black "Sopko, Cassio Roberto"]
[Result "0-1"]
[ECO "C31"]
[WhiteElo "1389"]
[BlackElo "1826"]
[PlyCount "74"]
[EventDate "2022.06.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 e5 2. f4 d5 3. Nf3 dxe4 4. Nxe5 Bd6 5. d4 exd3 6. Bxd3 Nf6 7. 0-0 0-0 8. h3 Bxe5 9. fxe5 Qd4+ 10. Kh1 Qxe5 11. Nc3 Nh5 12. Ne2 Nc6 13. Bf4 Nxf4 14. Nxf4 Be6 15. c3 Rad8 16. Qf3 Qg5 17. Qe4 Qh6 18. Rf3 Rfe8 19. Re1 Bd7 20. Qxh7+ Qxh7 21. Bxh7+ Kxh7 22. Ref1 Ne5 23. R3f2 Bc6 24. b3 f6 25. c4 Nd3 26. Rd2 Nxf4 27. Rxd8 Bxg2+ 28. Kg1 Rxd8 29. Rxf4 Rd2 30. a4 Bc6 31. h4 Rd3 32. b4 Bxa4 33. b5 c6 34. Re4 Rd7 35. bxc6 Bxc6 36. Re1 Rd4 37. Rc1 Rxh4 0-1

[Event "Pan American-ch Seniors 50"]
[Site "Florianopolis"]
[Date "2022.06.23"]
[Round "4"]
[White "Sopko, Cassio Roberto"]
[Black "Becker, Rogerio Sperb"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1826"]
[BlackElo "1707"]
[PlyCount "84"]
[EventDate "2022.06.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 d5 3. Bg2 c5 4. e3 cxd4 5. exd4 Nc6 6. Nf3 Bf5 7. a3 e6 8. 0-0 Be7 9. c4 dxc4 10. Qa4 Bd3 11. Ne5 Bxf1 12. Bxc6+ bxc6 13. Qxc6+ Kf8 14. Kxf1 Rc8 15. Qa6 Rc7 16. Bf4 Nd5 17. Nc3 Nxf4 18. gxf4 Qc8 19. Qa4 f6 20. Nf3 Qb7 21. Nb5 Rd7 22. Ne1 a6 23. Nc3 Rxd4 24. Rd1 Rxd1 25. Nxd1 Qb5 26. Qc2 c3+ 27. Kg1 cxb2 28. Nxb2 Kf7 29. Nc4 Rd8 30. Nf3 Kg8 31. Ne3 Bc5 32. Qa2 Bxe3 33. Qxe6+ Kh8 34. Qxe3 Qd3 35. Qe7 h6 36. Kg2 Qg6+ 37. Kf1 Rd1+ 38. Ne1 Qb1 39. Qe6 Kh7 40. h4 Rxe1+ 41. Qxe1 Qxe1+ 42. Kxe1 Kg6 0-1

[Event "Pan American-ch Seniors 50"]
[Site "Florianopolis"]
[Date "2022.06.22"]
[Round "3"]
[White "Araujo, Adalberto Marcos"]
[Black "Sopko, Cassio Roberto"]
[Result "1-0"]
[ECO "A90"]
[WhiteElo "2198"]
[BlackElo "1826"]
[PlyCount "89"]
[EventDate "2022.06.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 e6 3. g3 Nf6 4. Bg2 d5 5. c4 c6 6. 0-0 Bd6 7. b3 Qe7 8. Bb2 0-0 9. Qc1 a5 10. Ba3 Bxa3 11. Qxa3 Qxa3 12. Nxa3 Ne4 13. Ne5 Nd7 14. Nd3 b6 15. Rac1 Bb7 16. Rc2 g5 17. Rfc1 Rfc8 18. Nb1 c5 19. cxd5 exd5 20. f3 Nd6 21. dxc5 bxc5 22. Nxc5 Nxc5 23. Rxc5 Rxc5 24. Rxc5 a4 25. b4 Re8 26. Kf2 Ba6 27. Bf1 Bc4 28. Nc3 Rb8 29. a3 Bb3 30. e3 g4 31. Bd3 gxf3 32. Kxf3 Ne4 33. Rc7 Ng5+ 34. Ke2 Ne4 35. Nb5 Rb6 36. Nd4 Rh6 37. Nf3 Rf6 38. Nh4 h5 39. Ke1 Kh8 40. Be2 Nd6 41. Rc6 Ne4 42. Rxf6 Nxf6 43. Nxf5 Ne4 44. Bd3 Ng5 45. Nd4 1-0

[Event "Pan American-ch Seniors 50"]
[Site "Florianopolis"]
[Date "2022.06.21"]
[Round "1"]
[White "Mussanti, Diego"]
[Black "Sopko, Cassio Roberto"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2210"]
[BlackElo "1826"]
[PlyCount "64"]
[EventDate "2022.06.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. 0-0 Nc6 8. c4 Nb4 9. Be2 0-0 10. Nc3 Bf5 11. Be3 Rb8 12. Qb3 dxc4 13. Bxc4 Nc6 14. Be2 Bf6 15. Rad1 a6 16. d5 Ne5 17. Ba7 Nxc3 18. bxc3 Ra8 19. Qxb7 Be4 20. Ne1 Ng6 21. c4 Nh4 22. Bd3 Re8 23. Be3 Bxd3 24. Nxd3 Nf5 25. Bf4 Nd6 26. Qc6 Re4 27. c5 Nb5 28. d6 cxd6 29. Qxe4 Nc3 30. Qf3 Nxd1 31. Rxd1 dxc5 32. Nxc5 Qc8 1-0

[Event "Pan American-ch Seniors 50"]
[Site "Florianopolis"]
[Date "2022.06.21"]
[Round "2"]
[White "Sopko, Cassio Roberto"]
[Black "Shintate, Paulo Sunao Jr"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "1826"]
[PlyCount "67"]
[EventDate "2022.06.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. b4 e5 2. Bb2 d6 3. c4 Nf6 4. e3 a5 5. a3 axb4 6. axb4 Rxa1 7. Bxa1 Be7 8. Nf3 0-0 9. Be2 Na6 10. b5 Nc5 11. d4 exd4 12. exd4 Nce4 13. 0-0 d5 14. c5 b6 15. c6 Bb4 16. Qb3 Qd6 17. Ne5 Be6 18. f3 Ra8 19. Qb2 Ng5 20. h4 Nh3+ 21. gxh3 Bxh3 22. Rd1 Nh5 23. Nd2 f6 24. Bf1 Bxf1 25. Nxf1 fxe5 26. dxe5 Bc5+ 27. Kh2 Qe6 28. Qg2 Nf4 29. Qg4 Ra2+ 30. Kh1 Qxg4 31. fxg4 Ra3 32. Bd4 Rh3+ 33. Nh2 Be7 34. Bxb6 1-0

[Event "BRA-ch 87th"]
[Site "Cuiaba"]
[Date "2021.11.04"]
[Round "11"]
[White "Fedrizzi, Roberto Senatore"]
[Black "Sopko, Cassio Roberto"]
[Result "1-0"]
[ECO "A85"]
[WhiteElo "1962"]
[BlackElo "1877"]
[PlyCount "55"]
[EventDate "2021.10.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 e6 3. c4 d5 4. e3 c6 5. Bd3 Nf6 6. 0-0 Bd6 7. Nc3 0-0 8. a3 Ne4 9. Ne1 Qh4 10. f4 Rf6 11. Nf3 Qh5 12. cxd5 exd5 13. Qb3 Nxc3 14. bxc3 Nd7 15. c4 dxc4 16. Bxc4+ Kf8 17. Bb2 Nb6 18. d5 Rh6 19. dxc6 bxc6 20. Qc3 Nxc4 21. Qxg7+ Ke8 22. Qg8+ Ke7 23. Qxc4 Bd7 24. Rad1 Rb8 25. Bg7 Rg6 26. Be5 Rb7 27. Rxd6 Rxd6 28. Qc5 1-0

[Event "BRA-ch 87th"]
[Site "Cuiaba"]
[Date "2021.11.03"]
[Round "10"]
[White "Sopko, Cassio Roberto"]
[Black "Freitas, Mauricio Mathioli"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1877"]
[BlackElo "1441"]
[PlyCount "61"]
[EventDate "2021.10.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. d4 e6 2. g3 Nf6 3. Bg2 c5 4. c3 d5 5. Nf3 Nc6 6. 0-0 b5 7. a4 Qa5 8. dxc5 b4 9. Nd4 Qxc5 10. Nb5 Ne5 11. cxb4 Qb6 12. Bf4 a6 13. Bxe5 axb5 14. a5 Qd8 15. Qd3 Bd7 16. Bc3 Be7 17. Nd2 0-0 18. e4 Bc6 19. e5 Ng4 20. h3 Nh6 21. g4 Qc7 22. Rac1 Rfd8 23. Bd4 Bxb4 24. Bb6 Qb7 25. Bxd8 Rxd8 26. Nb3 Qa8 27. Rc2 Be8 28. Qd4 Be7 29. Rfc1 f6 30. Qb6 fxe5 31. Qxe6+ 1-0

[Event "BRA-ch 87th"]
[Site "Cuiaba"]
[Date "2021.11.02"]
[Round "9"]
[White "Deves, Rafael Correa"]
[Black "Sopko, Cassio Roberto"]
[Result "1/2-1/2"]
[ECO "C42"]
[BlackElo "1877"]
[PlyCount "59"]
[EventDate "2021.10.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d3 d5 4. exd5 Qxd5 5. Nc3 Bb4 6. Bd2 Bxc3 7. Bxc3 Nc6 8. Be2 0-0 9. 0-0 Bg4 10. Re1 Rfe8 11. Ng5 Bxe2 12. Rxe2 Nd4 13. Bxd4 exd4 14. Rxe8+ Rxe8 15. Nf3 c5 16. Qd2 h6 17. b3 b6 18. Re1 Re6 19. Qf4 Rxe1+ 20. Nxe1 Qe6 21. Kf1 Nd5 22. Qd2 f6 23. a4 Nc3 24. Nf3 g5 25. Qe1 Kf7 26. Qxe6+ Kxe6 27. Ng1 b5 28. axb5 Nxb5 29. Ke1 Nc3 30. Ne2 1/2-1/2

[Event "BRA-ch 87th"]
[Site "Cuiaba"]
[Date "2021.11.02"]
[Round "8"]
[White "Sopko, Cassio Roberto"]
[Black "Goetten Wagner, Julia"]
[Result "1/2-1/2"]
[ECO "D13"]
[WhiteElo "1877"]
[BlackElo "1606"]
[PlyCount "68"]
[EventDate "2021.10.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 c5 3. c3 cxd4 4. cxd4 d5 5. Bg2 e6 6. Nf3 Bd6 7. 0-0 Nc6 8. Nc3 0-0 9. b3 Bb4 10. Bb2 Bxc3 11. Bxc3 Ne4 12. Bb2 Bd7 13. Ne1 f5 14. Nd3 Rc8 15. f3 Ng5 16. Nc5 b6 17. Nxd7 Qxd7 18. Qd2 Nf7 19. f4 Rfd8 20. Rfc1 a5 21. Ba3 Nd6 22. Bxd6 Qxd6 23. a3 Rc7 24. e3 Rdc8 25. Bf1 Nd8 26. a4 Nf7 27. Ba6 Rd8 28. Rxc7 Qxc7 29. Rc1 Qa7 30. Bd3 Nd6 31. Rc2 Qb7 32. Qc1 Rc8 33. Kf2 Rxc2+ 34. Qxc2 Qc8 1/2-1/2

[Event "BRA-ch 87th"]
[Site "Cuiaba"]
[Date "2021.11.01"]
[Round "7"]
[White "Cardoso, Lucca Pimenta"]
[Black "Sopko, Cassio Roberto"]
[Result "1/2-1/2"]
[ECO "A90"]
[WhiteElo "1690"]
[BlackElo "1877"]
[PlyCount "69"]
[EventDate "2021.10.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. d4 f5 2. c4 e6 3. Nf3 d5 4. g3 c6 5. Bg2 Nf6 6. 0-0 Bd6 7. b3 Nbd7 8. Bb2 0-0 9. Nc3 Ne4 10. e3 b6 11. Ne2 Ba6 12. Rc1 Rc8 13. Nf4 Qe8 14. Nd3 Qh5 15. Nde5 Rfd8 16. Qc2 g5 17. Nd2 Ndf6 18. Nxe4 Nxe4 19. f3 Nf6 20. Rfe1 g4 21. fxg4 Nxg4 22. Nxg4 Qxg4 23. c5 Bb8 24. Ba3 Re8 25. Qd1 Qxd1 26. Rexd1 b5 27. Bh3 Rc7 28. b4 Rg7 29. Kf2 Bc8 30. Bb2 Bc7 31. a4 h5 32. axb5 cxb5 33. Rg1 Kh7 34. Rg2 Reg8 35. Kf3 1/2-1/2

[Event "BRA-ch 87th"]
[Site "Cuiaba"]
[Date "2021.10.31"]
[Round "5"]
[White "Paludo, Nicolas Luis Escara"]
[Black "Sopko, Cassio Roberto"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "1821"]
[BlackElo "1877"]
[PlyCount "49"]
[EventDate "2021.10.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 0-0 5. d3 d5 6. exd5 Nxd5 7. Bxd5 Qxd5 8. h3 b6 9. Bd2 Bxc3 10. Bxc3 Nc6 11. Qe2 Nd4 12. Bxd4 exd4 13. 0-0 c5 14. Qe4 Qxe4 15. dxe4 Re8 16. Rfe1 Bb7 17. Nd2 Re6 18. f3 Rae8 19. Kf2 g5 20. a4 a5 21. b3 f6 22. g4 Rd8 23. Rad1 Kf7 24. Nf1 Ba6 25. Nd2 1/2-1/2

[Event "BRA-ch 87th"]
[Site "Cuiaba"]
[Date "2021.10.31"]
[Round "6"]
[White "Sopko, Cassio Roberto"]
[Black "Rosa, Diego Jesus Vieira"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "1877"]
[BlackElo "1558"]
[PlyCount "75"]
[EventDate "2021.10.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 e6 3. Bg2 Be7 4. Nf3 0-0 5. 0-0 d6 6. b3 Nbd7 7. Bb2 c6 8. Qd3 Qc7 9. Nbd2 Re8 10. e4 e5 11. dxe5 dxe5 12. Rfe1 Bc5 13. h3 Qb6 14. Re2 a5 15. Nc4 Qc7 16. Rd1 b5 17. Nd6 Bxd6 18. Qxd6 Qxd6 19. Rxd6 Bb7 20. Nh4 a4 21. a3 axb3 22. cxb3 Nc5 23. b4 Na4 24. Ba1 Nb6 25. f4 Nc4 26. Rd3 Nh5 27. Bxe5 Nxe5 28. fxe5 Rxe5 29. Ree3 Nf6 30. Nf5 c5 31. bxc5 Bxe4 32. Bxe4 Nxe4 33. Nd6 Nxc5 34. Rxe5 Nxd3 35. Rxb5 g6 36. Rb3 Nc1 37. Re3 Ra6 38. Nb5 1/2-1/2

[Event "BRA-ch 87th"]
[Site "Cuiaba"]
[Date "2021.10.30"]
[Round "4"]
[White "Sopko, Cassio Roberto"]
[Black "Pironti, Francisco Ferrari"]
[Result "1/2-1/2"]
[ECO "E18"]
[WhiteElo "1877"]
[BlackElo "1499"]
[PlyCount "51"]
[EventDate "2021.10.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. d4 d5 2. g3 Nf6 3. Bg2 e6 4. Nf3 Be7 5. 0-0 0-0 6. b3 b6 7. c4 Bb7 8. Nc3 dxc4 9. bxc4 c5 10. dxc5 Bxc5 11. Bg5 h6 12. Qxd8 Rxd8 13. Bxf6 gxf6 14. Na4 Be7 15. Rfd1 Nc6 16. Rab1 Na5 17. c5 bxc5 18. Rdc1 Ba6 19. Nxc5 Bxe2 20. Nd4 Rac8 21. Ncxe6 fxe6 22. Nxe2 Rxc1+ 23. Rxc1 Rd2 24. Nf4 Kf7 25. Bf3 f5 26. Rc7 1/2-1/2

[Event "BRA-ch 87th"]
[Site "Cuiaba"]
[Date "2021.10.29"]
[Round "3"]
[White "De Oliveira, Tobias Luiz Carvalh"]
[Black "Sopko, Cassio Roberto"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "1172"]
[BlackElo "1877"]
[PlyCount "40"]
[EventDate "2021.10.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Be3 Nc6 8. Qd2 Be6 9. Bd3 Qd7 10. Qe2 a6 11. a3 0-0 12. 0-0-0 b5 13. Nd4 Ne5 14. f3 Nxd3+ 15. Qxd3 Bf6 16. Nxe6 Qxe6 17. Bd4 Bxd4 18. Qxd4 Rfe8 19. Rhe1 Qh6+ 20. Kb1 Qxh2 0-1

[Event "BRA-ch 87th"]
[Site "Cuiaba"]
[Date "2021.10.29"]
[Round "2"]
[White "Sopko, Cassio Roberto"]
[Black "De Avelar, Flavio Henrique"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "1877"]
[BlackElo "1534"]
[PlyCount "65"]
[EventDate "2021.10.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 d5 3. Bg2 Bf5 4. Nf3 e6 5. 0-0 Be7 6. b3 0-0 7. c4 c6 8. Nc3 h6 9. Bb2 Nbd7 10. Rc1 Re8 11. Nd2 Rb8 12. h3 Bf8 13. e4 dxe4 14. Ndxe4 Nxe4 15. Nxe4 Nf6 16. Qe2 Nxe4 17. Bxe4 Bxh3 18. Rfd1 Qg5 19. Rd3 Bg4 20. Qe1 Bf5 21. f4 Qg6 22. Re3 Bxe4 23. Rxe4 Rbd8 24. Rd1 Bb4 25. Qe3 b6 26. Qf3 Bf8 27. Rde1 h5 28. f5 Qh7 29. fxe6 fxe6 30. R1e2 Qg6 31. Rh4 Bd6 32. Kg2 Rf8 33. Qxh5 0-1

[Event "BRA-ch 87th"]
[Site "Cuiaba"]
[Date "2021.10.28"]
[Round "1"]
[White "Supi, Luis Paulo"]
[Black "Sopko, Cassio Roberto"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2572"]
[BlackElo "1877"]
[PlyCount "51"]
[EventDate "2021.10.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. 0-0 Nc6 8. Nbd2 Bg4 9. Nxe4 dxe4 10. Bxe4 Bxf3 11. Bxf3 Nxd4 12. Bxb7 Rb8 13. Be4 0-0 14. c3 Ne6 15. Qc2 h6 16. Rd1 Bd6 17. Be3 a6 18. Rd5 Rb5 19. Rad1 Qe7 20. g3 Rfb8 21. b4 Rxd5 22. Bxd5 c5 23. a3 cxb4 24. cxb4 Nc7 25. Qc6 Rd8 26. Bc4 1-0

[Event "Wch Seniors 50 29th"]
[Site "Bucharest"]
[Date "2019.11.23"]
[Round "11"]
[White "Sopko, Cassio Roberto"]
[Black "Cetinkaya, Vedat Ali"]
[Result "1/2-1/2"]
[ECO "E05"]
[WhiteElo "1835"]
[BlackElo "2046"]
[PlyCount "14"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ROU"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 d5 2. g3 e6 3. Bg2 Nf6 4. Nf3 Be7 5. 0-0 0-0 6. c4 dxc4 7. Qc2 a6 1/2-1/2

[Event "Wch Seniors 50 29th"]
[Site "Bucharest"]
[Date "2019.11.22"]
[Round "10"]
[White "Panush, Viktor"]
[Black "Sopko, Cassio Roberto"]
[Result "1/2-1/2"]
[ECO "A10"]
[WhiteElo "1933"]
[BlackElo "1835"]
[PlyCount "15"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ROU"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 f5 3. Bg2 e6 4. 0-0 Nf6 5. c4 Bd6 6. b3 Qe7 7. a4 a5 8. Ba3 1/2-1/2

[Event "Wch Seniors 50 29th"]
[Site "Bucharest"]
[Date "2019.11.21"]
[Round "9"]
[White "Sopko, Cassio Roberto"]
[Black "Craciun, Ovidiu"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "1835"]
[BlackElo "1953"]
[PlyCount "97"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ROU"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. b3 d6 5. Bb2 Nbd7 6. c4 0-0 7. Nc3 e5 8. d5 Nh5 9. e4 a6 10. a4 Qe8 11. Bf3 f6 12. h4 Bh6 13. b4 Ng7 14. h5 f5 15. hxg6 Qxg6 16. Bh5 Qf6 17. a5 b6 18. Qe2 bxa5 19. Rxa5 Rb8 20. Ba3 Bg5 21. Bf3 h6 22. Kf1 Qe7 23. Kg2 Nf6 24. Nh3 Nxe4 25. Nxe4 fxe4 26. Bxe4 Bxh3+ 27. Rxh3 Nf5 28. Bxf5 Rxf5 29. g4 Rf7 30. Rf3 Rbf8 31. Rxf7 Qxf7 32. b5 axb5 33. Rxb5 Qf4 34. Rb1 Bh4 35. Rf1 h5 36. Bc1 Qxg4+ 37. Qxg4+ hxg4 38. Be3 Rf7 39. f3 Rxf3 40. Rxf3 gxf3+ 41. Kxf3 Kf7 42. Ke4 Be1 43. c5 dxc5 44. Bxc5 Bc3 45. Ba3 Ke8 46. Bc5 Kd7 47. Bf8 Bb2 48. Bg7 Kd6 49. Bf8+ 1/2-1/2

[Event "Wch Seniors 50 29th"]
[Site "Bucharest"]
[Date "2019.11.20"]
[Round "8"]
[White "Breitkopf, Ioan Francisc"]
[Black "Sopko, Cassio Roberto"]
[Result "1/2-1/2"]
[ECO "C24"]
[WhiteElo "2016"]
[BlackElo "1835"]
[PlyCount "72"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ROU"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 Be7 4. Nc3 c6 5. Nf3 d6 6. Bg5 a5 7. a4 Na6 8. 0-0 Nc5 9. Qd2 Be6 10. Rfe1 h6 11. Bxe6 Nxe6 12. Be3 Ng4 13. d4 Nxe3 14. fxe3 exd4 15. exd4 Ng5 16. Kh1 0-0 17. Qd3 Qd7 18. Rad1 Rad8 19. d5 Bf6 20. Nd4 Be5 21. Nf5 c5 22. Nb5 g6 23. Ne3 Kg7 24. Rf1 h5 25. Rf2 f6 26. Rdf1 Rh8 27. Nc4 Rdf8 28. Nxe5 fxe5 29. Rxf8 Rxf8 30. Rxf8 Kxf8 31. Qg3 Nxe4 32. Qf3+ Qf7 33. Kg1 Qf4 34. Qxf4+ exf4 35. Nc7 Kf7 36. Ne6 b6 1/2-1/2

[Event "Wch Seniors 50 29th"]
[Site "Bucharest"]
[Date "2019.11.19"]
[Round "7"]
[White "Sopko, Cassio Roberto"]
[Black "Belmont Hernandez, Andres"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1835"]
[BlackElo "2066"]
[PlyCount "70"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ROU"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 d5 3. Bg2 Bf5 4. c4 c6 5. cxd5 cxd5 6. Nc3 e6 7. Qb3 Qd7 8. Nf3 Nc6 9. Bf4 Be7 10. Ne5 Nxe5 11. Bxe5 0-0 12. h3 Rfc8 13. 0-0 Rc4 14. a3 Rac8 15. Rfe1 a5 16. g4 Bg6 17. e3 a4 18. Qb5 Qxb5 19. Nxb5 Rc2 20. Nc3 Ne4 21. Bxe4 Bxe4 22. Nxa4 Bh4 23. Rf1 Bd3 24. b4 Bxf1 25. Rxf1 Ra2 26. Nc5 b6 27. Nd7 Rcc2 28. Nxb6 Bxf2+ 29. Kh1 Rxa3 30. Nc8 Bxe3 31. Ne7+ Kf8 32. Bd6 Ke8 33. b5 Rb3 34. Re1 Bxd4 35. b6 Rxh3+ 0-1

[Event "Wch Seniors 50 29th"]
[Site "Bucharest"]
[Date "2019.11.18"]
[Round "6"]
[White "Baimurzin, Aitkazy"]
[Black "Sopko, Cassio Roberto"]
[Result "0-1"]
[ECO "A10"]
[WhiteElo "1995"]
[BlackElo "1835"]
[PlyCount "76"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ROU"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 f5 3. Bg2 Nf6 4. c4 e6 5. b3 Bd6 6. Bb2 0-0 7. 0-0 c6 8. Qc2 Qe8 9. d4 Qh5 10. Nbd2 Nbd7 11. Ne5 Bxe5 12. dxe5 Ng4 13. Nf3 dxc4 14. Qxc4 Nb6 15. Qd4 Nd5 16. h3 Nh6 17. e3 b6 18. Qa4 Bb7 19. b4 a5 20. bxa5 Rxa5 21. Qc2 Re8 22. a4 Nf7 23. Nd2 c5 24. Nc4 Nb4 25. Qd1 Qxd1 26. Rfxd1 Bxg2 27. Kxg2 Ra6 28. Rd7 Nd5 29. Rb7 Rea8 30. f3 Nd8 31. Rd7 Nc6 32. e4 fxe4 33. fxe4 Ndb4 34. Rf1 Rf8 35. Rxf8+ Kxf8 36. Kf3 Rxa4 37. Nxb6 Ra2 38. Nc4 Rxb2 0-1

[Event "Wch Seniors 50 29th"]
[Site "Bucharest"]
[Date "2019.11.16"]
[Round "5"]
[White "Sopko, Cassio Roberto"]
[Black "Koch, Alain1"]
[Result "1/2-1/2"]
[ECO "A17"]
[WhiteElo "1835"]
[BlackElo "1930"]
[PlyCount "58"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ROU"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 d5 2. g3 Nf6 3. Bg2 Bf5 4. c4 e6 5. Nc3 c6 6. cxd5 exd5 7. Nf3 Nbd7 8. 0-0 Be7 9. Nh4 Bg6 10. f3 0-0 11. Nxg6 fxg6 12. e4 Nb6 13. e5 Ne8 14. f4 Nc7 15. b3 Qd7 16. h4 a5 17. Kh2 a4 18. Bh3 Qe8 19. Be3 axb3 20. axb3 Rxa1 21. Qxa1 Qa8 22. Kg2 Qa3 23. Qxa3 Bxa3 24. Rf2 Bb4 25. Na2 Be7 26. Nc3 Ra8 27. Ra2 Rxa2+ 28. Nxa2 Nb5 29. Kf3 Kf7 1/2-1/2

[Event "Wch Seniors 50 29th"]
[Site "Bucharest"]
[Date "2019.11.15"]
[Round "4"]
[White "Gebhardt, Uwe"]
[Black "Sopko, Cassio Roberto"]
[Result "1/2-1/2"]
[ECO "A90"]
[WhiteElo "1943"]
[BlackElo "1835"]
[PlyCount "42"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ROU"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 d5 4. Nf3 e6 5. 0-0 Bd6 6. Nbd2 0-0 7. c4 c6 8. b3 Qe8 9. e3 Qh5 10. Ne5 Qxd1 11. Rxd1 Nbd7 12. Bb2 a5 13. a3 Ne4 14. f3 Nxd2 15. Rxd2 Bxe5 16. dxe5 Nc5 17. Rb1 Nxb3 18. Rc2 a4 19. Bf1 Bd7 20. c5 Rfb8 21. Bd4 Kf7 1/2-1/2

[Event "Wch Seniors 50 29th"]
[Site "Bucharest"]
[Date "2019.11.14"]
[Round "3"]
[White "Sopko, Cassio Roberto"]
[Black "Brown, Steven A"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1835"]
[BlackElo "1991"]
[PlyCount "58"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ROU"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 d5 2. g3 Nf6 3. Bg2 e6 4. Nf3 c5 5. e3 Nc6 6. 0-0 Be7 7. b3 cxd4 8. exd4 0-0 9. Bb2 Qc7 10. a3 Nd7 11. Re1 Bf6 12. Nbd2 b5 13. c4 bxc4 14. bxc4 Rb8 15. Qc2 dxc4 16. Rab1 Na5 17. Ne5 Ba6 18. Bc3 Bxe5 19. dxe5 Rxb1 20. Rxb1 Nb3 21. Nxb3 cxb3 22. Qxb3 Rb8 23. Bb4 Nxe5 24. Qa4 Bd3 25. Re1 Bc2 26. Ba5 Qc5 27. Bb4 Bxa4 28. Bxc5 Nd3 29. Bxa7 Rb3 1/2-1/2

[Event "Wch Seniors 50 29th"]
[Site "Bucharest"]
[Date "2019.11.13"]
[Round "2"]
[White "Lima, Darcy Gustavo Macha"]
[Black "Sopko, Cassio Roberto"]
[Result "1-0"]
[ECO "C26"]
[WhiteElo "2540"]
[BlackElo "1835"]
[PlyCount "73"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ROU"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. g3 Bc5 5. Bg2 d6 6. d3 Bg4 7. h3 Bxf3 8. Bxf3 Nd4 9. Bg2 a6 10. 0-0 Qe7 11. Rb1 c6 12. b4 Ba7 13. a4 b5 14. Kh2 h6 15. f4 0-0 16. f5 Rfd8 17. g4 Nh7 18. axb5 axb5 19. Na2 c5 20. Nc3 f6 21. Nd5 Qb7 22. c3 Nc6 23. Qb3 Kh8 24. bxc5 Bxc5 25. Qxb5 Qxb5 26. Rxb5 Rdb8 27. Rxb8+ Rxb8 28. h4 Kg8 29. Bf3 Kf7 30. Bd1 Na5 31. Bc2 Nb3 32. Bxh6 Na1 33. Rxa1 Rb2 34. Bc1 Rxc2+ 35. Kg3 Bf2+ 36. Kh3 Nf8 37. g5 1-0

[Event "Wch Seniors 50 29th"]
[Site "Bucharest"]
[Date "2019.11.12"]
[Round "1"]
[White "Sopko, Cassio Roberto"]
[Black "Koehler, Gerhard"]
[Result "1/2-1/2"]
[ECO "A49"]
[WhiteElo "1835"]
[BlackElo "2184"]
[PlyCount "89"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ROU"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nf3 0-0 5. b3 d6 6. Bb2 Nbd7 7. Nbd2 e5 8. dxe5 Ng4 9. 0-0 Ngxe5 10. Nxe5 Nxe5 11. Rb1 a5 12. a4 Re8 13. Nf3 c6 14. Nxe5 dxe5 15. Qxd8 Rxd8 16. Rfd1 Bf5 17. e4 Be6 18. Bc3 Rxd1+ 19. Rxd1 f6 20. Bf1 Kf8 21. f3 Ke8 22. Be1 Bf8 23. c4 Bc5+ 24. Bf2 Bxf2+ 25. Kxf2 Rd8 26. Rxd8+ Kxd8 27. Ke3 Kc7 28. Kd2 Kd6 29. Kc3 Kc5 30. g4 Bd7 31. Bd3 b6 32. h3 Be6 33. Be2 h6 34. Bd3 Bd7 35. Bc2 Kd6 36. Bd3 h5 37. Be2 h4 38. Bd1 f5 39. Be2 fxe4 40. fxe4 Kc5 41. Bf1 Kd6 42. Be2 Ke7 43. Bf1 Kf6 44. Kd2 Kg5 45. Ke3 1/2-1/2

[Event "BRA-ch Seniors 50+"]
[Site "Sao Paulo"]
[Date "2019.10.13"]
[Round "5"]
[White "Braga, Marcelo Melem"]
[Black "Sopko, Cassio Roberto"]
[Result "0-1"]
[ECO "A84"]
[WhiteElo "1548"]
[BlackElo "1844"]
[PlyCount "70"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 f5 2. c4 e6 3. Nf3 d5 4. cxd5 exd5 5. a3 Bd6 6. Nc3 c6 7. Bg5 Nf6 8. e3 0-0 9. Bd3 Qe8 10. Bxf6 Rxf6 11. Qc2 Qh5 12. Be2 Qe8 13. b4 a6 14. Rc1 a5 15. Nxd5 Rf8 16. Nb6 Ra7 17. Nxc8 Qxc8 18. Qb3+ Kh8 19. Ng5 h6 20. Nf7+ Rxf7 21. Qxf7 axb4 22. Bd3 bxa3 23. Bxf5 Qf8 24. Qg6 Bb4+ 25. Ke2 Qg8 26. Be6 Qf8 27. d5 Ra5 28. d6 Rg5 29. Qe4 Bxd6 30. Ba2 Nd7 31. Rhd1 Nf6 32. Qd3 Rxg2 33. Bb1 Rxf2+ 34. Kxf2 Ne4+ 35. Ke1 Qf2# 0-1

[Event "BRA-ch Seniors 50+"]
[Site "Sao Paulo"]
[Date "2019.10.13"]
[Round "4"]
[White "Sopko, Cassio Roberto"]
[Black "Yasuda, Osvaldo Makoto"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "1844"]
[BlackElo "1303"]
[PlyCount "95"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. b4 e5 2. Bb2 d6 3. c4 Be6 4. e3 Nf6 5. a4 Nbd7 6. Nf3 Be7 7. Be2 0-0 8. Ng5 Bf5 9. Nc3 h6 10. Nf3 Re8 11. Qb3 c6 12. a5 Qc7 13. h3 Rad8 14. g4 Bg6 15. g5 hxg5 16. Nxg5 Nh7 17. Nxh7 Kxh7 18. h4 Nf6 19. h5 Bf5 20. 0-0-0 Ng4 21. Rdf1 Nh6 22. Rfg1 Bf6 23. e4 Be6 24. Qc2 Kg8 25. d3 Qe7 26. Kb1 Bg5 27. Bc1 Bxc1 28. Qxc1 Kh7 29. Rg2 Rd7 30. f4 f6 31. f5 Bg8 32. Qe3 d5 33. exd5 Qxb4+ 34. Kc2 cxd5 35. Rb1 Qc5 36. Rb5 Qc7 37. Rc5 Qb6 38. Qg3 Qxc5 39. Qg6+ Kh8 40. Qxe8 Qe7 41. Qb8 b6 42. Nxd5 Qa3 43. Qc8 Qa4+ 44. Kd2 Nxf5 45. Nc3 Qxc4 46. Qxd7 Qf4+ 47. Ke1 Qc1+ 48. Nd1 1-0

[Event "BRA-ch Seniors 50+"]
[Site "Sao Paulo"]
[Date "2019.10.12"]
[Round "2"]
[White "Sopko, Cassio Roberto"]
[Black "Zmetek, Marcos Simao"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1844"]
[BlackElo "1323"]
[PlyCount "83"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 d5 2. g3 e6 3. Bg2 Nf6 4. Nf3 c5 5. e3 Nc6 6. 0-0 Be7 7. b3 0-0 8. Bb2 Bd7 9. Nbd2 Qc7 10. Rc1 Rad8 11. a3 a5 12. c4 Rfe8 13. dxc5 Bxc5 14. cxd5 Nxd5 15. Rxc5 b6 16. Rc4 Qd6 17. Ne4 Qe7 18. Nd4 Ne5 19. Rc1 Rc8 20. Qe2 Ra8 21. f4 Ng6 22. Nc6 Qf8 23. Rfd1 Rec8 24. Ne5 Nxe5 25. fxe5 Qe7 26. Nd6 Rc6 27. Rxc6 Bxc6 28. Rc1 Qd7 29. Bd4 Rb8 30. Qg4 h6 31. Ne4 Rc8 32. Rf1 Qe7 33. Nd6 Rf8 34. h4 b5 35. Rf6 Kh7 36. Be4+ g6 37. Bxd5 Bxd5 38. Bc5 Qc7 39. b4 a4 40. Qf4 Kg7 41. Nxb5 Qc6 42. Bxf8+ 1-0

[Event "BRA-ch Seniors 50+"]
[Site "Sao Paulo"]
[Date "2019.10.11"]
[Round "1"]
[White "De Godoy, Fernando Andre Rolf"]
[Black "Sopko, Cassio Roberto"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "1772"]
[BlackElo "1844"]
[PlyCount "81"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 f5 2. Bf4 c6 3. c4 Nf6 4. e3 e6 5. a3 d5 6. Nf3 Bd6 7. Ne5 0-0 8. Nd2 b6 9. Be2 Bb7 10. Rc1 c5 11. Nd3 Na6 12. Nf3 dxc4 13. Rxc4 b5 14. Rc1 Ne4 15. Bxd6 Qxd6 16. Nxc5 Naxc5 17. dxc5 Qxd1+ 18. Bxd1 Rfc8 19. b4 a5 20. Bb3 Bd5 21. Bxd5 exd5 22. Nd4 axb4 23. axb4 Ra2 24. 0-0 Ra4 25. Nxf5 Kf7 26. Nd6+ Nxd6 27. cxd6 Rxc1 28. Rxc1 Rxb4 29. g3 Rc4 30. Rd1 d4 31. e4 Ke8 32. e5 g5 33. Kg2 g4 34. h3 h5 35. hxg4 hxg4 36. Rh1 d3 37. e6 Kf8 38. Rh8+ Kg7 39. e7 d2 40. e8Q d1Q 41. Qf8+ 1-0

[Event "Cuiaba Contaud op"]
[Site "Cuiaba"]
[Date "2019.06.02"]
[Round "6"]
[White "Gauche, Charles"]
[Black "Sopko, Cassio Roberto"]
[Result "1-0"]
[ECO "C32"]
[WhiteElo "2200"]
[BlackElo "1842"]
[PlyCount "44"]
[EventDate "2019.05.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Be3 Be7 7. Nf3 Bg4 8. Be2 Bf6 9. Qd3 Nd6 10. Nc3 Bf5 11. Qd2 Qe7 12. 0-0 0-0 13. Rae1 Nd7 14. Bd3 Qd8 15. Bd4 Nb6 16. b3 g6 17. Ne5 Bxd3 18. Qxd3 Nf5 19. Bc5 Re8 20. Bxb6 axb6 21. Ng4 Bg7 22. Ne4 h5 1-0

[Event "Cuiaba Contaud op"]
[Site "Cuiaba"]
[Date "2019.06.02"]
[Round "5"]
[White "Sopko, Cassio Roberto"]
[Black "Bandeira, Tarciano Elias"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1842"]
[BlackElo "2079"]
[PlyCount "65"]
[EventDate "2019.05.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. g3 e6 4. Bg2 c5 5. e3 b6 6. 0-0 Bd6 7. b3 0-0 8. Bb2 Nc6 9. Nbd2 Ba6 10. Re1 Rc8 11. a3 Qc7 12. Rc1 Rfd8 13. Bf1 Bxf1 14. Kxf1 e5 15. c4 dxc4 16. Nxc4 e4 17. Nxd6 Rxd6 18. Ng1 Qd7 19. Qc2 Rd8 20. d5 Ne7 21. Be5 Rxd5 22. Bxf6 gxf6 23. Qxe4 Ng6 24. Kg2 Ne5 25. Rc2 Qb5 26. b4 Rd1 27. Rce2 c4 28. Nf3 Nxf3 29. Qxf3 R1d3 30. Qg4+ Kh8 31. Rc2 c3 32. Rec1 Qd5+ 33. Qf3 1/2-1/2

[Event "Cuiaba Contaud op"]
[Site "Cuiaba"]
[Date "2019.06.01"]
[Round "4"]
[White "Arakaki Rodrigues, Andrey"]
[Black "Sopko, Cassio Roberto"]
[Result "0-1"]
[ECO "C48"]
[WhiteElo "1813"]
[BlackElo "1842"]
[PlyCount "40"]
[EventDate "2019.05.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Nd4 5. Be2 d5 6. d3 Nxe2 7. Nxe2 dxe4 8. dxe4 Qxd1+ 9. Kxd1 Nxe4 10. Ke1 f6 11. Be3 Bd7 12. Rd1 0-0-0 13. Nd2 Bc6 14. f3 Nxd2 15. Rxd2 Be7 16. Kf2 Rxd2 17. Bxd2 Rd8 18. Rd1 Bc5+ 19. Ke1 f5 20. Bc3 Bf2+ 0-1

[Event "Cuiaba Contaud op"]
[Site "Cuiaba"]
[Date "2019.06.01"]
[Round "3"]
[White "Sopko, Cassio Roberto"]
[Black "Bezerra, Christian Pcosta"]
[Result "1/2-1/2"]
[ECO "E17"]
[WhiteElo "1842"]
[BlackElo "1842"]
[PlyCount "72"]
[EventDate "2019.05.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. 0-0 0-0 6. b3 b6 7. Bb2 Bb7 8. Nbd2 Nbd7 9. c4 c5 10. Rb1 Ne4 11. e3 f5 12. Ne1 cxd4 13. exd4 Bb4 14. Nxe4 fxe4 15. Qg4 Qe8 16. Nc2 Nf6 17. Qd1 Bd6 18. Ne3 Rb8 19. Bh3 Qf7 20. a3 Ba6 21. Qd2 Rfc8 22. Rfc1 Qe7 23. Kg2 h5 24. Qd1 g5 25. Kg1 g4 26. Bf1 Bb7 27. b4 Qf7 28. c5 Bf8 29. a4 h4 30. Nxg4 hxg3 31. hxg3 Qg6 32. Ne5 Qh6 33. Qd2 Qh5 34. Be2 Qh3 35. Bf1 Qh5 36. Be2 Qh3 1/2-1/2

[Event "Cuiaba Contaud op"]
[Site "Cuiaba"]
[Date "2019.05.31"]
[Round "1.41"]
[White "Sopko, Cassio Roberto"]
[Black "Da Luz, Eylieser Fonseca"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "1842"]
[PlyCount "20"]
[EventDate "2019.05.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. b4 d5 2. Bb2 b5 3. a4 a6 4. e3 c6 5. c4 Bf5 6. d4 e6 7. Be2 Bd6 8. Ba3 c5 9. f3 Bc2 10. Bd3 g6 1-0

[Event "Brasilia Terraviva op"]
[Site "Brasilia"]
[Date "2019.01.13"]
[Round "6"]
[White "Labussiere, Victor"]
[Black "Sopko, Cassio Roberto"]
[Result "1-0"]
[ECO "A10"]
[WhiteElo "2062"]
[BlackElo "1834"]
[PlyCount "99"]
[EventDate "2019.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.28"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.28"]
[SourceQuality "1"]

1. c4 f5 2. g3 e6 3. Bg2 c6 4. Nf3 Nf6 5. 0-0 d5 6. d3 dxc4 7. dxc4 Qxd1 8. Rxd1 Bc5 9. b3 Ne4 10. e3 Nd7 11. Bb2 0-0 12. Nc3 Ndf6 13. Nxe4 Nxe4 14. Nd2 Ng5 15. Nf3 Be7 16. Nxg5 Bxg5 17. Rd2 Be7 18. Rad1 Kf7 19. Kf1 g6 20. Ke2 h5 21. h4 a5 22. a3 Ra6 23. Rc1 Rb6 24. Rd3 c5 25. Be5 Rd8 26. Rcd1 Rxd3 27. Rxd3 Ke8 28. Bc7 Ra6 29. a4 Bd7 30. Bf3 Bc8 31. e4 Bd7 32. Ke3 Bc6 33. e5 Bxf3 34. Kxf3 g5 35. hxg5 Bxg5 36. Rd1 h4 37. gxh4 Bxh4 38. Rd6 Be7 39. Rxa6 bxa6 40. Bxa5 Kd7 41. Kg3 Kc6 42. f4 Kd7 43. Kh3 Kc6 44. Be1 Kd7 45. Bh4 Bf8 46. Bg5 Ke8 47. Kh4 Kf7 48. Kh5 Kg7 49. Bh6+ Kf7 50. a5 1-0

[Event "Brasilia Terraviva op"]
[Site "Brasilia"]
[Date "2019.01.12"]
[Round "4"]
[White "Ramos Azevedo, Edmundo Roberto"]
[Black "Sopko, Cassio Roberto"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "2011"]
[BlackElo "1834"]
[PlyCount "60"]
[EventDate "2019.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.28"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.28"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 e6 3. Bg5 Be7 4. Bxe7 Qxe7 5. c3 Nf6 6. e3 d5 7. Nbd2 Nbd7 8. Bd3 Ne4 9. Qb3 0-0 10. 0-0 Kh8 11. c4 c6 12. g3 g5 13. Qc2 g4 14. Nh4 Ndf6 15. f3 gxf3 16. Ndxf3 Ng4 17. Bxe4 dxe4 18. Ne5 Nxe5 19. dxe5 Qc5 20. Qc3 b5 21. cxb5 Qxc3 22. bxc3 cxb5 23. Rfd1 Bb7 24. a4 a6 25. Ng2 Rfd8 26. axb5 Rxd1+ 27. Rxd1 axb5 28. Rd6 Ra1+ 29. Kf2 Ra2+ 30. Kg1 Ra1+ 1/2-1/2

[Event "Brasilia Terraviva op"]
[Site "Brasilia"]
[Date "2019.01.12"]
[Round "5"]
[White "Sopko, Cassio Roberto"]
[Black "Mota, Romulo Rodrigues"]
[Result "1-0"]
[ECO "A90"]
[WhiteElo "1834"]
[BlackElo "1993"]
[PlyCount "71"]
[EventDate "2019.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.28"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.28"]
[SourceQuality "1"]

1. d4 e6 2. g3 d5 3. Bg2 c6 4. Nf3 Bd6 5. Nbd2 f5 6. c4 Nf6 7. 0-0 0-0 8. b3 b6 9. Bb2 Bb7 10. Rc1 Nbd7 11. e3 Ne4 12. Nxe4 fxe4 13. Nd2 Qg5 14. Qe2 Rae8 15. f4 Qh6 16. Rf2 c5 17. a3 cxd4 18. Bxd4 Nc5 19. Bxc5 Bxc5 20. b4 Bd6 21. c5 bxc5 22. bxc5 Bc7 23. Nb3 e5 24. c6 Bxc6 25. Bxe4 exf4 26. Nd4 fxe3 27. Rxf8+ Rxf8 28. Rxc6 Bd6 29. Bxd5+ Kh8 30. Ne6 Bxg3 31. hxg3 Rb8 32. Kg2 Qf6 33. Nf4 Qd4 34. Qc4 Qb2+ 35. Kh3 Rf8 36. Ng6+ 1-0

[Event "BRA-ch sf2"]
[Site "Brasilia"]
[Date "2018.07.20"]
[Round "3.5"]
[White "Freitas, Ronan Cunha"]
[Black "Sopko, Cassio Roberto"]
[Result "1/2-1/2"]
[ECO "A90"]
[WhiteElo "1612"]
[BlackElo "1829"]
[PlyCount "53"]
[EventDate "2018.07.20"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. c4 e6 4. Bg2 d5 5. Nc3 c6 6. Nf3 Bd6 7. 0-0 Nbd7 8. c5 Bc7 9. b4 0-0 10. Bd2 Qe7 11. e3 Ne4 12. a4 b6 13. Qc2 bxc5 14. bxc5 Ba6 15. Rfb1 Rab8 16. a5 e5 17. Nxe4 fxe4 18. Rxb8 Bxb8 19. Nxe5 Bxe5 20. dxe5 Nxe5 21. Bc3 Nd3 22. Rf1 Qxc5 23. Qb3 Qc4 24. Qxc4 Bxc4 25. f3 Nc5 26. Bb4 Bxf1 27. Bxf1 1/2-1/2

[Event "BRA-ch sf2"]
[Site "Brasilia"]
[Date "2018.07.20"]
[Round "1.9"]
[White "Guilhon, Felipe Moreira"]
[Black "Sopko, Cassio Roberto"]
[Result "0-1"]
[ECO "C24"]
[BlackElo "1829"]
[PlyCount "114"]
[EventDate "2018.07.20"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 Be7 4. f4 d5 5. exd5 Bg4 6. Nf3 Nbd7 7. Nc3 0-0 8. 0-0 a6 9. a4 exf4 10. Bxf4 Nb6 11. Qd2 Nbxd5 12. Nxd5 Nxd5 13. Kh1 c6 14. Rae1 Bf6 15. c3 b5 16. axb5 axb5 17. Bb3 Be6 18. Be5 Bxe5 19. Rxe5 Qd6 20. d4 f6 21. Ree1 Rfe8 22. Nh4 Bd7 23. Nf5 Rxe1 24. Qxe1 Bxf5 25. Rxf5 g6 26. Rf1 Rf8 27. Qe2 Kg7 28. Re1 Rf7 29. Bxd5 Qxd5 30. Qe6 Rd7 31. h3 Qxe6 32. Rxe6 Rc7 33. b3 Kf7 34. Re2 Ra7 35. c4 bxc4 36. bxc4 Ra1+ 37. Kh2 Rc1 38. d5 cxd5 39. cxd5 Rd1 40. g4 Rxd5 41. Re3 h5 42. Kg3 hxg4 43. hxg4 f5 44. gxf5 Rxf5 45. Kg4 Kf6 46. Rf3 Rxf3 47. Kxf3 Kf5 48. Kg3 Kg5 49. Kf3 Kh4 50. Kg2 Kg4 51. Kh2 Kf3 52. Kg1 g5 53. Kh1 Kf2 54. Kh2 g4 55. Kh1 Kf3 56. Kg1 Kg3 57. Kh1 Kf2 0-1

[Event "BRA-ch sf2"]
[Site "Brasilia"]
[Date "2018.07.20"]
[Round "2.3"]
[White "Sopko, Cassio Roberto"]
[Black "Soares, Renan Barbosa Monte"]
[Result "1/2-1/2"]
[ECO "A49"]
[WhiteElo "1829"]
[BlackElo "2012"]
[PlyCount "59"]
[EventDate "2018.07.20"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nf3 0-0 5. 0-0 d6 6. b3 c5 7. Bb2 Nc6 8. dxc5 dxc5 9. Qxd8 Rxd8 10. Na3 Bf5 11. Nh4 Be4 12. f3 g5 13. fxe4 gxh4 14. Nc4 hxg3 15. hxg3 Nd4 16. Bxd4 Rxd4 17. e3 Rd7 18. Rad1 Rad8 19. Rxd7 Rxd7 20. a4 e6 21. Bf3 Kf8 22. Kf2 Ng8 23. Ke2 Ne7 24. Rd1 Rxd1 25. Kxd1 b6 26. Kd2 Nc6 27. c3 Ke7 28. Be2 Kd7 29. Bh5 Ke7 30. Be2 1/2-1/2

[Event "BRA-ch sf2"]
[Site "Brasilia"]
[Date "2018.07.20"]
[Round "4.4"]
[White "Sopko, Cassio Roberto"]
[Black "Valcarcel, Victor Ignacio Sant"]
[Result "1/2-1/2"]
[ECO "A40"]
[WhiteElo "1829"]
[BlackElo "1860"]
[PlyCount "64"]
[EventDate "2018.07.20"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 g6 2. g3 Bg7 3. Bg2 d6 4. b3 f5 5. Bb2 Nf6 6. Nh3 0-0 7. 0-0 c5 8. dxc5 dxc5 9. Qxd8 Rxd8 10. c4 Na6 11. a3 h6 12. Nf4 Kf7 13. Nd5 Nxd5 14. Bxg7 Kxg7 15. Bxd5 Nc7 16. Bg2 Rb8 17. Nc3 b5 18. cxb5 Nxb5 19. Na4 Nd4 20. Nxc5 Nxe2+ 21. Kh1 f4 22. b4 Bf5 23. Rfe1 Rd2 24. gxf4 Kf7 25. Nb3 Rb2 26. Na5 a6 27. Nc4 Rc2 28. Ne3 Rd2 29. Nc4 Rc2 30. Ne3 Rbc8 31. Nxc2 Rxc2 32. Rxe2 Rxe2 1/2-1/2

[Event "BRA-ch sf2"]
[Site "Brasilia"]
[Date "2018.07.20"]
[Round "5.5"]
[White "Terra, Arthur Schneider"]
[Black "Sopko, Cassio Roberto"]
[Result "0-1"]
[ECO "A81"]
[WhiteElo "1647"]
[BlackElo "1829"]
[PlyCount "72"]
[EventDate "2018.07.20"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 f5 2. g3 e6 3. Bg2 d5 4. c4 c6 5. cxd5 exd5 6. Nf3 Bd6 7. Bg5 Nf6 8. 0-0 0-0 9. Ne5 Qb6 10. Qd2 Ne4 11. Bxe4 fxe4 12. Kg2 Nd7 13. Nxd7 Bxd7 14. Nc3 Rae8 15. Rac1 Be7 16. Be3 Qd8 17. Rh1 Be6 18. Na4 Qd7 19. h4 Bg4 20. Rce1 Bd6 21. Nc3 Rf7 22. Nd1 Ref8 23. a3 Qf5 24. b4 Qh5 25. Qc2 a6 26. Qd2 Be6 27. Nc3 Qg4 28. Qc1 Rxf2+ 29. Bxf2 Rxf2+ 30. Kxf2 Qxg3+ 31. Kf1 Bh3+ 32. Rxh3 Qxh3+ 33. Kf2 Bg3+ 34. Ke3 Bxe1+ 35. Kf4 Qg3+ 36. Kf5 Qg6+ 0-1

[Event "Pocos de Caldas op"]
[Site "Pocos de Caldas"]
[Date "2018.03.04"]
[Round "6"]
[White "Frattini, Beatriz Maria"]
[Black "Sopko, Cassio Roberto"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "1363"]
[BlackElo "1859"]
[PlyCount "63"]
[EventDate "2018.03.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. a3 Bxc3 5. dxc3 d6 6. Bd3 Bg4 7. Bg5 Nbd7 8. h3 Be6 9. 0-0 h6 10. Be3 a6 11. c4 g5 12. Nh2 Rg8 13. f3 Nh5 14. Ng4 Rg6 15. Qd2 Nf4 16. Kh2 h5 17. Nf2 b6 18. g3 Nxd3 19. cxd3 f5 20. exf5 Bxf5 21. g4 hxg4 22. fxg4 Be6 23. Ne4 d5 24. Bxg5 Qc8 25. Nf6+ Nxf6 26. Rxf6 Rg8 27. cxd5 Bxg4 28. Qe3 Kd7 29. Rf7+ Kd6 30. Rc1 c5 31. Be7+ Kxd5 32. Rf6 1-0

[Event "Pocos de Caldas op"]
[Site "Pocos de Caldas"]
[Date "2018.03.04"]
[Round "5"]
[White "Sopko, Cassio Roberto"]
[Black "Do Valle Cardoso, Lucas"]
[Result "0-1"]
[ECO "D78"]
[WhiteElo "1859"]
[BlackElo "2051"]
[PlyCount "64"]
[EventDate "2018.03.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 g6 3. Bg2 d5 4. c4 c6 5. Nf3 Bg7 6. Nc3 0-0 7. 0-0 dxc4 8. Ne5 Ng4 9. Nxg4 Bxg4 10. h3 Be6 11. e3 Na6 12. Qe2 Qc8 13. Kh2 b5 14. d5 Bxd5 15. Nxd5 cxd5 16. Bxd5 Rb8 17. a4 Nb4 18. axb5 Nxd5 19. Rxa7 Qc5 20. Ra4 Rfc8 21. e4 Qxb5 22. Ra7 Bd4 23. Ra3 Nb4 24. Bf4 Be5 25. Bxe5 Qxe5 26. f4 Qc5 27. Rc3 Nd3 28. Rc2 Qd4 29. Rd1 Rxb2 30. Rxb2 Qxb2 31. Rd2 Qxd2 32. Qxd2 c3 0-1

[Event "Pocos de Caldas op"]
[Site "Pocos de Caldas"]
[Date "2018.03.03"]
[Round "4"]
[White "Grum, Amanda Soares"]
[Black "Sopko, Cassio Roberto"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "1380"]
[BlackElo "1859"]
[PlyCount "76"]
[EventDate "2018.03.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d3 Nf6 6. d4 Bg4 7. Bd3 Nc6 8. c3 d5 9. 0-0 Be7 10. Bf4 0-0 11. Nbd2 Bd6 12. Bxd6 Qxd6 13. Qc2 Rfe8 14. Rfe1 h6 15. h3 Bd7 16. Nf1 Qf4 17. Ng3 Bxh3 18. gxh3 Qxf3 19. Rad1 h5 20. Be2 Qf4 21. Nxh5 Qg5+ 22. Ng3 Ne4 23. Qd3 f5 24. Kf1 Re6 25. Nxe4 fxe4 26. Qg3 Qe7 27. c4 Rf6 28. cxd5 Nb4 29. Qb3 Qd6 30. Bg4 Rxf2+ 31. Kxf2 Qh2+ 32. Ke3 Nc2+ 33. Kxe4 Nxe1 34. Rxe1 Rf8 35. Qe3 Qc2+ 36. Qd3 Qg2+ 37. Ke3 Qf2+ 38. Ke4 Qf4# 0-1

[Event "Pocos de Caldas op"]
[Site "Pocos de Caldas"]
[Date "2018.03.03"]
[Round "3"]
[White "Sopko, Cassio Roberto"]
[Black "Costa, Iaggo Bernini"]
[Result "1-0"]
[ECO "E60"]
[WhiteElo "1859"]
[BlackElo "1474"]
[PlyCount "45"]
[EventDate "2018.03.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. b4 Nf6 2. Bb2 g6 3. c4 Bg7 4. e3 d6 5. Nf3 0-0 6. d4 d5 7. Nbd2 Bf5 8. b5 c6 9. a4 Nbd7 10. Qb3 Nb6 11. Ne5 dxc4 12. Ndxc4 Nxc4 13. Bxc4 Qe8 14. h4 Ne4 15. g4 Bxe5 16. gxf5 Qd8 17. fxg6 hxg6 18. Rd1 Bf6 19. Qd3 Qa5+ 20. Ke2 cxb5 21. axb5 Nd6 22. Qxg6+ Bg7 23. Rhg1 1-0

[Event "Pocos de Caldas op"]
[Site "Pocos de Caldas"]
[Date "2018.03.02"]
[Round "2"]
[White "Nunes, Guilherme Sacardo T"]
[Black "Sopko, Cassio Roberto"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "1484"]
[BlackElo "1859"]
[PlyCount "33"]
[EventDate "2018.03.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 0-0 5. d3 d5 6. exd5 Nxd5 7. Bd2 Bxc3 8. bxc3 Nc6 9. 0-0 a6 10. Bb3 Bg4 11. Qe2 Re8 12. Qe4 Nf6 13. Qe3 h6 14. h3 Be6 15. c4 Nd4 16. Nxd4 Qxd4 17. Qg3 1/2-1/2

[Event "Pocos de Caldas op"]
[Site "Pocos de Caldas"]
[Date "2018.03.02"]
[Round "1"]
[White "Sopko, Cassio Roberto"]
[Black "Mekhitarian, Krikor Sevag"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "1859"]
[BlackElo "2545"]
[PlyCount "66"]
[EventDate "2018.03.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 d5 3. Bg2 Bf5 4. c4 e6 5. Nc3 c6 6. Nf3 h6 7. 0-0 Be7 8. Qb3 Qb6 9. Qxb6 axb6 10. Ne5 0-0 11. b3 Rd8 12. cxd5 exd5 13. Bb2 b5 14. Rfc1 Nbd7 15. Nxd7 Rxd7 16. Nd1 Rdd8 17. Ne3 Bg6 18. Bh3 Ba3 19. Bxa3 Rxa3 20. Nc2 Bxc2 21. Rxc2 Rda8 22. Rb2 Ne4 23. Kf1 Rxb3 24. axb3 Rxa1+ 25. Kg2 b4 26. Bc8 Nd6 27. Bg4 Kf8 28. e3 Ke7 29. Be2 Ne4 30. Bd3 Nc3 31. Kf3 Kd6 32. e4 dxe4+ 33. Bxe4 Rd1 0-1

[Event "Brasilia Terraviva op"]
[Site "Brasilia"]
[Date "2018.01.14"]
[Round "7"]
[White "Sopko, Cassio Roberto"]
[Black "Campos, Westerley Batista"]
[Result "1/2-1/2"]
[ECO "D20"]
[WhiteElo "1893"]
[BlackElo "1760"]
[PlyCount "50"]
[EventDate "2018.01.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nc3 Nf6 4. e4 e5 5. Bxc4 Qxd4 6. Qxd4 exd4 7. Nb5 Bb4+ 8. Ke2 Ba5 9. b4 Bb6 10. a4 a6 11. Na3 Nxe4 12. Nf3 Nc3+ 13. Kd2 Ne4+ 14. Ke2 Bg4 15. a5 Ba7 16. Bf4 b5 17. axb6 Bxb6 18. Rhc1 Ra7 19. Bd3 Nc3+ 20. Kd2 Bxf3 21. gxf3 Nd5 22. Nc4 0-0 23. Be5 Nd7 24. Nxb6 cxb6 25. Bd6 Re8 1/2-1/2

[Event "Brasilia Terraviva op"]
[Site "Brasilia"]
[Date "2018.01.14"]
[Round "6"]
[White "Taira, Erick Hideki"]
[Black "Sopko, Cassio Roberto"]
[Result "1/2-1/2"]
[ECO "A90"]
[WhiteElo "1752"]
[BlackElo "1893"]
[PlyCount "47"]
[EventDate "2018.01.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. c4 f5 2. Nc3 Nf6 3. Nf3 c6 4. d4 e6 5. g3 d5 6. Bg2 Bd6 7. 0-0 Nbd7 8. b3 0-0 9. Bb2 Qe8 10. e3 Qh5 11. Ne2 g5 12. h4 h6 13. Nc1 Ng4 14. Nd3 Ndf6 15. Nde5 Ne4 16. Nh2 Bxe5 17. Nxg4 fxg4 18. dxe5 gxh4 19. Bxe4 dxe4 20. Ba3 Re8 21. Qd6 h3 22. Kh2 Qf5 23. Rad1 Qf3 24. Rg1 1/2-1/2

[Event "Brasilia Terraviva op"]
[Site "Brasilia"]
[Date "2018.01.13"]
[Round "4"]
[White "De Meneses, Luiz Claudio Maia"]
[Black "Sopko, Cassio Roberto"]
[Result "0-1"]
[ECO "A85"]
[WhiteElo "1631"]
[BlackElo "1893"]
[PlyCount "142"]
[EventDate "2018.01.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 f5 2. c4 Nf6 3. Nc3 e6 4. Nf3 d5 5. a3 c6 6. Bg5 Bd6 7. e3 0-0 8. Bd3 Qe8 9. Ne5 Ne4 10. Bf4 Qe7 11. c5 Bc7 12. Qc2 g5 13. Bg3 Nxg3 14. hxg3 Bxe5 15. dxe5 Qxc5 16. Ne2 Qxc2 17. Bxc2 Nd7 18. f4 c5 19. g4 gxf4 20. exf4 Nb6 21. Kf2 d4 22. b3 Nd5 23. g5 b6 24. Rh4 Ba6 25. Ng3 d3 26. Bd1 Rad8 27. Nf1 Nc3 28. Nd2 Bb7 29. Bf3 Bxf3 30. gxf3 Rd7 31. Rc1 Ne2 32. Rd1 b5 33. Rh6 Nxf4 34. Ke3 Ng6 35. f4 Rc8 36. Rc1 Rd5 37. Rc3 Rcd8 38. Rh1 a5 39. Rhc1 Rc8 40. a4 bxa4 41. bxa4 Rd4 42. Rc4 Rcd8 43. Rxd4 Rxd4 44. Rc4 Kf7 45. Rxd4 cxd4+ 46. Kxd3 Nxf4+ 47. Kxd4 Nd5 48. Kc4 Kg6 49. Nf3 f4 50. Kb5 Nc3+ 51. Kxa5 Kf5 52. Kb4 Nxa4 53. Kxa4 Ke4 54. Nh2 Kxe5 55. Kb3 Kf5 56. Kc3 e5 57. Kd3 e4+ 58. Ke2 Kxg5 59. Kf2 h5 60. Kg2 Kf5 61. Kf2 Ke5 62. Ke2 Kd4 63. Kd2 h4 64. Ke2 h3 65. Kf2 Kd3 66. Ng4 Kd2 67. Nh2 e3+ 68. Kg1 Ke2 69. Nf1 f3 70. Ng3+ Ke1 71. Kh2 f2 0-1

[Event "Brasilia Terraviva op"]
[Site "Brasilia"]
[Date "2018.01.13"]
[Round "5"]
[White "Sopko, Cassio Roberto"]
[Black "Almeida, Ygor de Souza"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1893"]
[BlackElo "1677"]
[PlyCount "85"]
[EventDate "2018.01.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. g3 Nf6 4. Bg2 c5 5. e3 Be7 6. 0-0 0-0 7. Nbd2 Nc6 8. c3 Ne4 9. Nxe4 dxe4 10. Nd2 f5 11. f3 exf3 12. Qxf3 Bf6 13. Nc4 e5 14. Qd5+ Qxd5 15. Bxd5+ Kh8 16. Nd6 exd4 17. cxd4 g6 18. dxc5 Kg7 19. Bd2 Ne7 20. Bg2 Bxb2 21. Rab1 Bf6 22. Nxb7 Bd7 23. Nd6 Rab8 24. Ba5 Bc6 25. Bxc6 Nxc6 26. Bc7 Rb4 27. Rxb4 Nxb4 28. Rb1 Na6 29. Rb7 Nxc5 30. Rxa7 Kg8 31. a4 Be5 32. Nb5 Bxc7 33. Nxc7 Rf7 34. Ra8+ Kg7 35. Ne8+ Kh6 36. a5 Re7 37. Kf2 Ne4+ 38. Ke2 Nc3+ 39. Kd3 Nd5 40. Kd4 Nxe3 41. Nf6 Kg7 42. Ne8+ Kh6 43. Nf6 1/2-1/2

[Event "Brasilia Terraviva op"]
[Site "Brasilia"]
[Date "2018.01.12"]
[Round "2"]
[White "Olivo, Anibal Ribeiro"]
[Black "Sopko, Cassio Roberto"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "1576"]
[BlackElo "1893"]
[PlyCount "99"]
[EventDate "2018.01.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Be3 Nc6 8. Qd2 Be6 9. 0-0-0 Qd7 10. Kb1 Bf6 11. Nd4 Nxd4 12. Bxd4 Qe7 13. Qf4 Bxd4 14. cxd4 d5 15. Bd3 0-0-0 16. Bf5 Rd6 17. Rhe1 Rhd8 18. Rd3 Qf6 19. Rf3 Qxf5 20. Qxf5 Bxf5 21. Rxf5 f6 22. Rf3 Kd7 23. Rfe3 Kc6 24. Rc3+ Kd7 25. Rce3 Kc8 26. c3 b5 27. b4 Kb7 28. Kc2 Kb6 29. f4 a5 30. a3 axb4 31. axb4 c6 32. g4 Ra8 33. Kd3 Rd7 34. Re7 Kc7 35. R7e2 h5 36. g5 fxg5 37. fxg5 Rf8 38. Re5 Rf3+ 39. R1e3 Rf2 40. Re2 Rf4 41. h3 h4 42. R2e3 Rf1 43. Ke2 Rdf7 44. Re7+ Kd8 45. Rxf7 Rxf7 46. Rf3 Ke7 47. Rxf7+ Kxf7 48. Kf3 g6 49. Kg4 Ke6 50. Kf4 1/2-1/2

[Event "Brasilia Terraviva op"]
[Site "Brasilia"]
[Date "2018.01.12"]
[Round "3"]
[White "Sopko, Cassio Roberto"]
[Black "Castro, Leonardo Nascimento"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "1893"]
[BlackElo "1602"]
[PlyCount "138"]
[EventDate "2018.01.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 d5 3. Bg2 Bf5 4. c4 e6 5. Nc3 c6 6. Nf3 dxc4 7. Ne5 Nbd7 8. Nxc4 Nb6 9. Na5 Qd7 10. 0-0 Bb4 11. Nb3 0-0 12. e4 Bxc3 13. exf5 Bb4 14. a3 Be7 15. fxe6 Qxe6 16. Re1 Qd7 17. Qc2 Rfe8 18. Bf4 Bd6 19. Bxd6 Qxd6 20. Qc5 Qd7 21. Na5 Rac8 22. Rxe8+ Nxe8 23. Rd1 Nf6 24. b4 Rc7 25. Nb3 Qe7 26. Bf3 Rd7 27. Qxe7 Rxe7 28. Nc5 Nbd5 29. Rc1 a6 30. Nxb7 Rxb7 31. Rxc6 Kf8 32. Rxa6 Ke7 33. g4 Rd7 34. g5 Ne8 35. Ra5 Nb6 36. Ra6 Nc4 37. Bc6 Rxd4 38. Ra7+ Kf8 39. Ra8 Ncd6 40. b5 Ke7 41. Ra7+ Kd8 42. b6 Rc4 43. Bxe8 Kxe8 44. b7 Nxb7 45. Rxb7 Rg4+ 46. Kf1 Rxg5 47. h3 Ra5 48. Rb3 Kd7 49. Kg2 Kc6 50. h4 Rb5 51. Re3 Rf5 52. Kg3 Kb5 53. Re4 h5 54. f4 Rc5 55. a4+ Ka5 56. Re5 Rxe5 57. fxe5 Kxa4 58. Kf4 Kb5 59. Kg5 Kc5 60. Kxh5 Kd5 61. Kg5 Kxe5 62. Kg4 f5+ 63. Kf3 Kf6 64. Kg3 Ke6 65. Kf3 Ke5 66. Ke3 f4+ 67. Kf3 Kf5 68. h5 Kg5 69. Ke4 Kg4 0-1

[Event "Brasilia Terraviva op"]
[Site "Brasilia"]
[Date "2018.01.11"]
[Round "1"]
[White "Sopko, Cassio Roberto"]
[Black "De Oliveira, Anderson Jose Ferre"]
[Result "1/2-1/2"]
[ECO "D11"]
[WhiteElo "1893"]
[BlackElo "1804"]
[PlyCount "51"]
[EventDate "2018.01.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. g3 Bf5 4. Bg2 e6 5. Nf3 Nf6 6. 0-0 Be7 7. Nc3 Nbd7 8. cxd5 cxd5 9. b3 Ne4 10. Nxe4 Bxe4 11. Bf4 0-0 12. Rc1 Rc8 13. Qd2 Rc6 14. Rxc6 bxc6 15. Ne5 Nxe5 16. Bxe4 Nd7 17. Bb1 Nf6 18. Rc1 Qd7 19. Qc2 Rc8 20. Be5 g6 21. Qd3 Qb7 22. Qf3 Nd7 23. Bf4 Qb4 24. Qd3 Qb7 25. h4 Qb6 26. h5 1/2-1/2

[Event "Pan American-ch Seniors 50"]
[Site "Neiva"]
[Date "2017.10.15"]
[Round "7"]
[White "Lima, Luis Antonio"]
[Black "Sopko, Cassio Roberto"]
[Result "1/2-1/2"]
[ECO "A10"]
[WhiteElo "1767"]
[BlackElo "1900"]
[PlyCount "72"]
[EventDate "2017.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. c4 f5 2. Nc3 Nf6 3. g3 c6 4. Bg2 e6 5. e3 d5 6. cxd5 exd5 7. d4 Bd6 8. Nge2 0-0 9. 0-0 Qe7 10. a3 a5 11. Qc2 Ne4 12. Nd1 b6 13. f3 Nf6 14. Nf2 Ba6 15. Re1 Nh5 16. Nd3 Nd7 17. f4 Bxd3 18. Qxd3 g6 19. Nc3 Nhf6 20. Bd2 Ne4 21. Nxe4 fxe4 22. Qb3 b5 23. Rac1 a4 24. Qd1 Rac8 25. Bh3 Rc7 26. Qg4 Rfc8 27. Rf1 Kg7 28. Rc2 Nf6 29. Qxc8 Rxc8 30. Bxc8 Bxa3 31. bxa3 Qxa3 32. g4 Ne8 33. Bd7 Nd6 34. Bxc6 Qb3 35. Rfc1 a3 36. Rc3 Qb2 1/2-1/2

[Event "Pan American-ch Seniors 50"]
[Site "Neiva"]
[Date "2017.10.15"]
[Round "8"]
[White "Sopko, Cassio Roberto"]
[Black "Riascos, Guillermo"]
[Result "1/2-1/2"]
[ECO "E02"]
[WhiteElo "1900"]
[BlackElo "1799"]
[PlyCount "132"]
[EventDate "2017.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Nbd7 5. 0-0 c5 6. c4 dxc4 7. Qa4 cxd4 8. Nxd4 a6 9. Qxc4 Be7 10. Nc3 0-0 11. Rd1 Nb6 12. Qb3 Qc7 13. Bg5 Nbd7 14. Rac1 Qa5 15. Bd2 Qh5 16. Nxe6 fxe6 17. Qxe6+ Qf7 18. Qxf7+ Rxf7 19. Nd5 Bd8 20. Bg5 Rf8 21. Nc7 Bxc7 22. Rxc7 h6 23. Bf4 Re8 24. e3 Nf8 25. Bxb7 Bxb7 26. Rxb7 Ne6 27. Rb6 Nxf4 28. gxf4 Reb8 29. Rxb8+ Rxb8 30. b3 Rb6 31. Rd4 Kf7 32. Kg2 Ke6 33. h3 Nd5 34. Ra4 Nc3 35. Ra5 Nb5 36. Kg3 Na7 37. Kg4 Nc6 38. Ra4 Nb4 39. e4 Nd3 40. f3 h5+ 41. Kg5 Ne1 42. f5+ Kf7 43. f4 Nd3 44. Rc4 Nf2 45. e5 Nxh3+ 46. Kxh5 Rh6+ 47. Kg4 Nf2+ 48. Kf3 Nd3 49. Rc7+ Kf8 50. Ke4 Nb4 51. a3 Nc6 52. Rc8+ Ke7 53. Ra8 Na5 54. Ra7+ Kf8 55. e6 Nxb3 56. Kd5 Rh1 57. Rxa6 Rd1+ 58. Kc4 Nd2+ 59. Kd3 Nb1+ 60. Kc2 Rf1 61. Ra8+ Ke7 62. Ra7+ Ke8 63. a4 Na3+ 64. Kb3 Rf3+ 65. Ka2 Nc4 66. a5 Rxf4 1/2-1/2

[Event "Pan American-ch Seniors 50"]
[Site "Neiva"]
[Date "2017.10.14"]
[Round "5"]
[White "Culma, Ruben"]
[Black "Sopko, Cassio Roberto"]
[Result "1-0"]
[ECO "A90"]
[WhiteElo "2044"]
[BlackElo "1900"]
[PlyCount "79"]
[EventDate "2017.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 f5 2. g3 e6 3. Bg2 d5 4. c4 c6 5. Nf3 Nf6 6. 0-0 Bd6 7. b3 Qe7 8. Bb2 Nbd7 9. Ne5 Bxe5 10. dxe5 Ng4 11. Ba3 Qf7 12. f4 Ne3 13. Qd3 Nxf1 14. Kxf1 b6 15. Bd6 Bb7 16. Nc3 Rc8 17. b4 Ba6 18. b5 dxc4 19. Qb1 Bb7 20. bxc6 Bxc6 21. Bxc6 Rxc6 22. Qb5 Rc8 23. Qa6 Rd8 24. Nb5 Qg6 25. Qxa7 Rf8 26. Rd1 Qh5 27. h4 Qg4 28. Kf2 Qh3 29. Bxf8 Qh2+ 30. Kf3 Kxf8 31. Rxd7 Qh1+ 32. Ke3 Qg1+ 33. Kd2 Rxd7+ 34. Qxd7 c3+ 35. Kc2 h6 36. Qxe6 Qe3 37. Qxf5+ Ke7 38. Qd3 Qf2 39. f5 Qf1 40. Nxc3 1-0

[Event "Pan American-ch Seniors 50"]
[Site "Neiva"]
[Date "2017.10.14"]
[Round "6"]
[White "Sopko, Cassio Roberto"]
[Black "Leal Ortega, Jose del Carmen"]
[Result "1/2-1/2"]
[ECO "A38"]
[WhiteElo "1900"]
[BlackElo "1684"]
[PlyCount "56"]
[EventDate "2017.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 g6 3. g3 Bg7 4. Bg2 Nf6 5. Nc3 Nc6 6. Rb1 d6 7. a3 a5 8. d3 0-0 9. 0-0 Rb8 10. Bd2 Bd7 11. Nb5 Ng4 12. Bc3 Nge5 13. Qd2 b6 14. b3 Nxf3+ 15. Bxf3 Ne5 16. Bg2 h5 17. d4 cxd4 18. Nxd4 Qc8 19. Rbc1 Bh3 20. f4 Bxg2 21. Kxg2 Qb7+ 22. Nf3 Ng4 23. Bxg7 Kxg7 24. h3 Nf6 25. Kh2 Rbc8 26. f5 Rc5 27. fxg6 fxg6 28. Qd4 Qe4 1/2-1/2

[Event "Pan American-ch Seniors 50"]
[Site "Neiva"]
[Date "2017.10.12"]
[Round "4"]
[White "Acosta Pedroso, Gerardo"]
[Black "Sopko, Cassio Roberto"]
[Result "1/2-1/2"]
[ECO "A90"]
[WhiteElo "2050"]
[BlackElo "1900"]
[PlyCount "52"]
[EventDate "2017.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 Nf6 3. c4 e6 4. g3 d5 5. Bg2 c6 6. Qc2 Bd6 7. 0-0 0-0 8. Bg5 Qe8 9. Bxf6 Rxf6 10. Ne5 f4 11. gxf4 Rxf4 12. e3 Rf8 13. f4 Bxe5 14. fxe5 Rxf1+ 15. Kxf1 b6 16. Nd2 Qh5 17. Nf3 Ba6 18. b3 Nd7 19. Kg1 Qh6 20. Re1 Rc8 21. Qb2 dxc4 22. Qa3 Nb8 23. bxc4 Bxc4 24. Qxa7 b5 25. a3 Rf8 26. Qe7 Qg6 1/2-1/2

[Event "Pan American-ch Seniors 50"]
[Site "Neiva"]
[Date "2017.10.12"]
[Round "3"]
[White "Sopko, Cassio Roberto"]
[Black "Puentes, Alvaro"]
[Result "1/2-1/2"]
[ECO "D10"]
[WhiteElo "1900"]
[BlackElo "2123"]
[PlyCount "31"]
[EventDate "2017.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. g3 Nc6 5. Bg2 e6 6. Nf3 Qb6 7. 0-0 Nf6 8. Nc3 Be7 9. Qd3 0-0 10. a3 a6 11. Bg5 h6 12. Bf4 Qd8 13. Ne5 Bd7 14. Nxd7 Qxd7 15. Na4 Qd8 16. b4 1/2-1/2

[Event "Pan American-ch Seniors 50"]
[Site "Neiva"]
[Date "2017.10.11"]
[Round "1"]
[White "Sopko, Cassio Roberto"]
[Black "Sanchez, Victor Hugo"]
[Result "0-1"]
[ECO "A26"]
[WhiteElo "1900"]
[BlackElo "2248"]
[PlyCount "96"]
[EventDate "2017.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. c4 d6 6. Nc3 Nc6 7. Rb1 a5 8. a3 e5 9. d3 h6 10. b4 axb4 11. axb4 Be6 12. b5 Nd4 13. e3 Nxf3+ 14. Bxf3 d5 15. c5 d4 16. Na4 e4 17. dxe4 dxe3 18. Bxe3 Qxd1 19. Bxd1 Nxe4 20. Bc2 f5 21. Rb4 Ra5 22. Bf4 Rf7 23. Rd1 Kh7 24. h4 Nc3 25. Re1 Bd5 26. Be5 Nxb5 27. Bxg7 Kxg7 28. Re5 Bc6 29. h5 gxh5 30. Bxf5 Na7 31. Bc2 Bf3 32. Rf4 Rxf4 33. gxf4 Bc6 34. Nc3 Ra1+ 35. Kh2 Rc1 36. Re2 Rh1+ 37. Kg3 h4+ 38. Kg4 h5+ 39. Kf5 Bd7+ 40. Kg5 Nc6 41. Bb3 h3 42. Bd5 Rg1+ 43. Kh4 h2 44. Nb5 h1Q+ 45. Bxh1 Rxh1+ 46. Kg5 h4 47. Nxc7 h3 48. f5 Rg1+ 0-1

[Event "Pan American-ch Seniors 50"]
[Site "Neiva"]
[Date "2017.10.11"]
[Round "2"]
[White "Triana Castro, Francisco Javier"]
[Black "Sopko, Cassio Roberto"]
[Result "0-1"]
[ECO "A83"]
[WhiteElo "1684"]
[BlackElo "1900"]
[PlyCount "104"]
[EventDate "2017.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 Nc6 5. Bxf6 exf6 6. Nxe4 d5 7. Ng3 Qd6 8. c3 Bd7 9. Qc2 g6 10. Nf3 Bh6 11. Bd3 0-0-0 12. 0-0 f5 13. Rfe1 Bg7 14. Ng5 Qf6 15. Nf3 Rde8 16. b4 h5 17. h4 Bh6 18. b5 Na5 19. Nf1 b6 20. g3 g5 21. Ne3 gxh4 22. Nxh4 Bxe3 23. Rxe3 Rxe3 24. fxe3 Rg8 25. Kh2 Nc4 26. Bxc4 dxc4 27. Qa4 Qd6 28. Rg1 Qd5 29. Qd1 Qe4 30. Qf3 Qxf3 31. Nxf3 Bxb5 32. Ne5 Re8 33. Rf1 Bd7 34. Rf4 b5 35. Kh3 a5 36. a3 b4 37. axb4 axb4 38. cxb4 c3 39. Rf2 Ba4 40. Ra2 c2 41. Ra1 Bb3 42. Kg2 Bd5+ 43. Kf2 Be4 44. b5 Kb7 45. Nc4 h4 46. gxh4 Rg8 47. Nd2 Rg2+ 48. Ke1 Bd3 49. Nb3 Re2+ 50. Kf1 Rxe3+ 51. Kf2 Re2+ 52. Kf3 Kb6 0-1

[Event "Cuiaba Contaud op"]
[Site "Cuiaba"]
[Date "2017.07.30"]
[Round "6"]
[White "Dutra, Liliam Guedes"]
[Black "Sopko, Cassio Roberto"]
[Result "0-1"]
[ECO "A85"]
[WhiteElo "1557"]
[BlackElo "1898"]
[PlyCount "86"]
[EventDate "2017.07.28"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. a3 d5 6. e3 Bd6 7. cxd5 exd5 8. Bd3 0-0 9. Qc2 Ne4 10. g3 Nd7 11. Nd2 Ndf6 12. f3 Nxc3 13. bxc3 Qe7 14. Kf2 Bd7 15. Nb3 b6 16. Re1 Rae8 17. Bd2 Ne4+ 18. Bxe4 fxe4 19. f4 Qf7 20. Qd1 Qg6 21. Qe2 Bg4 22. Qf1 Qh5 23. Kg1 Rf6 24. Rec1 Ref8 25. c4 Be2 26. Qg2 Bxc4 27. Rcb1 g5 28. Bb4 gxf4 29. Bxd6 f3 30. Qf2 Rxd6 31. Nd2 Bd3 32. Rc1 Rg6 33. Rc3 Kh8 34. Rac1 Bb5 35. R3c2 Rfg8 36. Nf1 Qh3 37. Rb2 Bxf1 38. Rxf1 h5 39. Kh1 Rxg3 40. Rg1 Rxg1+ 41. Qxg1 Rxg1+ 42. Kxg1 Qg4+ 43. Kh1 Qg5 0-1

[Event "Cuiaba Contaud op"]
[Site "Cuiaba"]
[Date "2017.07.30"]
[Round "5"]
[White "Sopko, Cassio Roberto"]
[Black "Vieira, Jose Renato Braga S"]
[Result "0-1"]
[ECO "A39"]
[WhiteElo "1898"]
[BlackElo "1947"]
[PlyCount "60"]
[EventDate "2017.07.28"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nf3 g6 4. g3 Bg7 5. Bg2 0-0 6. 0-0 cxd4 7. Nxd4 Nc6 8. Nc3 Ng4 9. e3 Nge5 10. b3 d6 11. Bb2 Bg4 12. f3 Bd7 13. a3 Rc8 14. Nd5 Be6 15. e4 Bxd5 16. cxd5 Qb6 17. Kh1 Nd3 18. Qxd3 Nxd4 19. Bxd4 Bxd4 20. Rad1 Bb2 21. b4 Rc6 22. Qb3 Bf6 23. Rd3 Rfc8 24. a4 Rc2 25. b5 Rb2 26. Qd1 Rcc2 27. Rg1 Qf2 28. f4 Ra2 29. Qf3 Bd4 30. Rgd1 Bc5 0-1

[Event "Cuiaba Contaud op"]
[Site "Cuiaba"]
[Date "2017.07.29"]
[Round "4"]
[White "Duailibi, Ricardo Miguel"]
[Black "Sopko, Cassio Roberto"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "1928"]
[BlackElo "1898"]
[PlyCount "35"]
[EventDate "2017.07.28"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d3 Nf6 6. d4 d5 7. h3 Bd6 8. Bd3 0-0 9. 0-0 Nbd7 10. Nc3 c5 11. dxc5 Nxc5 12. Be2 Nce4 13. Nb5 Bb8 14. Be3 a6 15. Nbd4 Be6 16. c3 Qd6 17. Qb3 Nc5 18. Qa3 1/2-1/2

[Event "Cuiaba Contaud op"]
[Site "Cuiaba"]
[Date "2017.07.29"]
[Round "3"]
[White "Sopko, Cassio Roberto"]
[Black "Guimaraes, Wagner Peixoto"]
[Result "1/2-1/2"]
[ECO "A39"]
[WhiteElo "1898"]
[BlackElo "2196"]
[PlyCount "119"]
[EventDate "2017.07.28"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nf6 3. Nc3 g6 4. g3 Bg7 5. Bg2 Nc6 6. 0-0 0-0 7. d4 cxd4 8. Nxd4 Ng4 9. e3 Nge5 10. b3 d6 11. Bb2 Nxd4 12. exd4 Nc6 13. Na4 Rb8 14. Qd2 e5 15. dxe5 dxe5 16. Qxd8 Rxd8 17. Rad1 Bg4 18. Rxd8+ Rxd8 19. Bc3 Bc8 20. Bd5 Nd4 21. Bxd4 exd4 22. Nc5 b6 23. Nd3 Bf5 24. Rd1 Re8 25. Bf3 h5 26. b4 Bf8 27. a3 a5 28. Nf4 axb4 29. axb4 Bxb4 30. Rxd4 Re1+ 31. Kg2 Bc5 32. Rd2 Rc1 33. Bd5 Rc3 34. h3 Kg7 35. Ne2 Ra3 36. Nf4 Rb3 37. h4 Rc3 38. Ne2 Rc2 39. Rxc2 Bxc2 40. Nf4 Bd6 41. Kf3 Bc5 42. Ke2 Kf6 43. f3 Bb3 44. g4 Bd6 45. Ke3 Bxf4+ 46. Kxf4 hxg4 47. fxg4 b5 48. Ke4 Bxc4 49. Bxc4 bxc4 50. Kd4 c3 51. Kxc3 Ke5 52. h5 gxh5 53. gxh5 Kf5 54. Kd4 Kg5 55. Ke5 f6+ 56. Ke6 f5 57. h6 Kg6 58. h7 Kg7 59. Kxf5 Kh8 60. Kg6 1/2-1/2

[Event "Cuiaba Contaud op"]
[Site "Cuiaba"]
[Date "2017.07.28"]
[Round "2"]
[White "Passos, Rafael Moreira"]
[Black "Sopko, Cassio Roberto"]
[Result "0-1"]
[ECO "A90"]
[WhiteElo "1485"]
[BlackElo "1898"]
[PlyCount "50"]
[EventDate "2017.07.28"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. Nf3 f5 2. g3 Nf6 3. Bg2 c6 4. c4 e6 5. 0-0 d5 6. b3 Bd6 7. Bb2 0-0 8. d4 b6 9. Nc3 Ba6 10. cxd5 exd5 11. Re1 f4 12. gxf4 Bxf4 13. e3 Bd6 14. Ne5 Bb7 15. e4 dxe4 16. Nxe4 Nxe4 17. Bxe4 Qh4 18. Qe2 Nd7 19. Bg2 Rae8 20. Qc4+ Kh8 21. Nf7+ Rxf7 22. Qxf7 Bxh2+ 23. Kf1 Ba6+ 24. Re2 Bxe2+ 25. Ke1 Bh5+ 0-1

[Event "Cuiaba Contaud op"]
[Site "Cuiaba"]
[Date "2017.07.28"]
[Round "1"]
[White "Sopko, Cassio Roberto"]
[Black "Proudian, Armen"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "1898"]
[BlackElo "2434"]
[PlyCount "76"]
[EventDate "2017.07.28"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 b5 3. Bg2 Bb7 4. 0-0 e6 5. d3 d5 6. a4 b4 7. c4 bxc3 8. bxc3 Nc6 9. Ba3 Bxa3 10. Nxa3 Rb8 11. Rb1 Qe7 12. Qc1 0-0 13. c4 d4 14. Re1 Rfd8 15. Nd2 Nb4 16. Bxb7 Rxb7 17. Rb3 Rdb8 18. Qb2 e5 19. Rb1 c5 20. f3 h5 21. Nc2 h4 22. Nxb4 cxb4 23. a5 Nd7 24. Qa2 Nc5 25. R3b2 Qg5 26. Nf1 f5 27. a6 Rb6 28. Qa5 Rc8 29. Rxb4 Rxa6 30. Qb5 hxg3 31. hxg3 e4 32. dxe4 fxe4 33. Rd1 d3 34. exd3 exd3 35. Rxd3 Rb6 36. Qa5 Rxb4 37. Rd5 Ra4 38. Qb5 Qe7 0-1

[Event "Florianopolis zt 2.4"]
[Site "Florianopolis"]
[Date "2017.05.01"]
[Round "9"]
[White "Lima, Carlos Eduardo I De"]
[Black "Sopko, Cassio Roberto"]
[Result "1/2-1/2"]
[ECO "C42"]
[BlackElo "1943"]
[PlyCount "118"]
[EventDate "2017.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. d3 d5 5. Bd2 Nc6 6. exd5 Nxd5 7. Nxd5 Qxd5 8. Be2 Bg4 9. 0-0 Be7 10. h3 Bh5 11. Re1 0-0-0 12. Be3 f5 13. c4 Qd7 14. Qa4 a6 15. a3 Bf6 16. Rab1 Bxf3 17. Bxf3 Nd4 18. Qxd7+ Rxd7 19. Bd1 Rhd8 20. b4 g6 21. a4 h5 22. a5 f4 23. Bxd4 Rxd4 24. b5 Rxd3 25. bxa6 bxa6 26. Bc2 Rd2 27. Bxg6 R8d4 28. Bxh5 Rxc4 29. Bf3 Rc5 30. Bb7+ Kd7 31. Red1 Rxd1+ 32. Rxd1+ Ke7 33. Ra1 e4 34. Ra2 e3 35. fxe3 fxe3 36. Bxa6 Bd4 37. Be2 Rc1+ 38. Kh2 Be5+ 39. g3 Bd4 40. h4 Rc5 41. a6 Rf5 42. Kh3 Rf2 43. g4 Kf6 44. g5+ Kg6 45. Kg4 Rg2+ 46. Kf4 Rf2+ 47. Ke4 Ba7 48. Rc2 c5 49. Kxe3 c4+ 50. Ke4 c3 51. Bd3 Rf7 52. Rh2 Re7+ 53. Kd5+ Kh5 54. Kc4 Bb8 55. Rh1 Bg3 56. Kxc3 Bxh4 57. g6 Kg4 58. Rg1+ Kh5 59. g7 Bf6+ 1/2-1/2

[Event "Florianopolis zt 2.4"]
[Site "Florianopolis"]
[Date "2017.04.30"]
[Round "7"]
[White "De Vilhena, Cleriston Mubarak T"]
[Black "Sopko, Cassio Roberto"]
[Result "1/2-1/2"]
[ECO "A84"]
[WhiteElo "1601"]
[BlackElo "1943"]
[PlyCount "57"]
[EventDate "2017.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. d4 f5 2. c4 Nf6 3. Nc3 e6 4. e3 d5 5. Bd3 c6 6. Nge2 Bd6 7. f3 e5 8. dxe5 Bxe5 9. cxd5 Nxd5 10. Nxd5 Qxd5 11. Qc2 b5 12. Nc3 Qe6 13. Bd2 Na6 14. Ne2 0-0 15. 0-0 Qf6 16. f4 Bc7 17. Nd4 Bd7 18. a3 Bb6 19. Bc3 Qe7 20. Rae1 Rac8 21. Rf3 g6 22. Rg3 Bc7 23. Nf3 Nc5 24. Ne5 Qe8 25. Kh1 Nxd3 26. Qxd3 Be6 27. e4 Rd8 28. Qf3 fxe4 29. Qxe4 1/2-1/2

[Event "Florianopolis zt 2.4"]
[Site "Florianopolis"]
[Date "2017.04.30"]
[Round "8"]
[White "Sopko, Cassio Roberto"]
[Black "Cordioli, Jairo Ribeiro"]
[Result "1/2-1/2"]
[ECO "A39"]
[WhiteElo "1943"]
[BlackElo "1899"]
[PlyCount "79"]
[EventDate "2017.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. g3 Nc6 4. Bg2 g6 5. Nc3 Bg7 6. 0-0 0-0 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. Qd3 Rb8 11. Rb1 Bd7 12. e4 Bc6 13. Be3 b6 14. Rfd1 Ng4 15. f4 Nxe3 16. Qxe3 Qc7 17. Rbc1 Rbd8 18. Nd5 Qb7 19. b4 e6 20. Nc3 Qb8 21. h3 Rfe8 22. Kh2 Qa8 23. Rd2 f5 24. Nb5 Qb8 25. Nd4 Bxd4 26. Rxd4 e5 27. fxe5 dxe5 28. Rxd8 Qxd8 29. Rc2 Qd4 30. Qxd4 exd4 31. Rd2 Bxe4 32. Rxd4 Bxg2 33. Kxg2 Re2+ 34. Kf3 Rxa2 35. c5 bxc5 36. bxc5 Rc2 37. Rd8+ Kf7 38. Rd7+ Kf6 39. Rxa7 Rc3+ 40. Kf2 1/2-1/2

[Event "Florianopolis zt 2.4"]
[Site "Florianopolis"]
[Date "2017.04.29"]
[Round "5"]
[White "Masselli, Eduardo"]
[Black "Sopko, Cassio Roberto"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "1665"]
[BlackElo "1943"]
[PlyCount "60"]
[EventDate "2017.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 d6 5. h3 c6 6. d3 Qe7 7. 0-0 a5 8. a3 Bc5 9. Bg5 h6 10. Bh4 g5 11. Bg3 g4 12. hxg4 Bxg4 13. Bh4 Nbd7 14. Na4 Ba7 15. Ba2 b5 16. Nc3 Rg8 17. Nb1 Qf8 18. Nbd2 Qg7 19. c4 Bh3 20. g3 Bxf1 21. Kxf1 Qg4 22. Kg2 Nh5 23. cxb5 Nf4+ 24. Kf1 Qh3+ 25. Ke1 Nxd3+ 26. Ke2 N7c5 27. Nc4 Qg2 28. Nxd6+ Kd7 29. bxc6+ Kxd6 30. g4 Rxg4 0-1

[Event "Florianopolis zt 2.4"]
[Site "Florianopolis"]
[Date "2017.04.29"]
[Round "6"]
[White "Sopko, Cassio Roberto"]
[Black "Do Prado, Hamilton Mesquita"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "1943"]
[BlackElo "1744"]
[PlyCount "84"]
[EventDate "2017.04.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. d4 Bf5 5. 0-0 e6 6. c4 Bd6 7. Qb3 Qc8 8. a4 a5 9. Bd2 Nbd7 10. cxd5 exd5 11. Nc3 Qb8 12. Rfe1 0-0 13. Nh4 Be6 14. Qc2 Re8 15. Rad1 Qc8 16. f3 Nf8 17. e4 dxe4 18. fxe4 Bb4 19. Qd3 Bg4 20. Rc1 Qd7 21. Bg5 Bc5 22. Be3 Rad8 23. e5 Rxe5 24. d5 Bxe3+ 25. Rxe3 Rxe3 26. Qxe3 Nxd5 27. Qf2 Nxc3 28. bxc3 Qd2 29. Qxd2 Rxd2 30. Rb1 Rd1+ 31. Rxd1 Bxd1 32. Nf5 Bxa4 33. Nd6 Bb3 34. Nxb7 a4 35. Nc5 Ne6 36. Nxb3 axb3 37. Bxc6 Nc5 38. Bd5 b2 39. Ba2 Na4 40. c4 Nc3 41. Bb1 Nxb1 42. c5 Na3 0-1

