[Event "BRA-ch Amateur U1600"]
[Site "Sao Paulo"]
[Date "2019.06.22"]
[Round "6"]
[White "Jefferson, Gary Michael"]
[Black "Da Luz, Fabio Rodolfo"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1055"]
[BlackElo "1598"]
[PlyCount "111"]
[EventDate "2019.06.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 Bf5 4. c3 e6 5. Nf3 Bd6 6. Bg3 0-0 7. Nbd2 c5 8. Ne5 cxd4 9. exd4 Nc6 10. Be2 Bxe5 11. dxe5 Nd7 12. 0-0 Ndxe5 13. Nb3 Nd7 14. Nd4 Nxd4 15. cxd4 Nf6 16. Bh4 Rc8 17. Bd3 Bxd3 18. Qxd3 Rc6 19. Qg3 Ne4 20. Qg4 f6 21. Rfe1 Kh8 22. Re3 Qc8 23. f3 Nd2 24. Rd1 Nc4 25. Rb3 a5 26. a4 Nb6 27. f4 Nxa4 28. Rg3 Rg8 29. Rh3 Nxb2 30. Rf1 Rc7 31. Be1 Nc4 32. Qh4 h6 33. Rff3 Qd8 34. g4 f5 35. Qg3 Nd6 36. g5 Ne4 37. Qg2 Qf8 38. Bxa5 Rc1+ 39. Rf1 Rxf1+ 40. Qxf1 Kh7 41. Bc7 Nd6 42. Rg3 Nf7 43. g6+ Kh8 44. gxf7 Qxf7 45. Be5 Kh7 46. Kh1 Qd7 47. Qg1 b5 48. Rg2 Qb7 49. Rb2 g5 50. Qf2 Qc6 51. Rc2 Qa6 52. Rc7+ Kg6 53. Qg1 g4 54. h3 h5 55. Rc1 Qa3 56. Qh2 0-1

[Event "BRA-ch Amateur U1600"]
[Site "Sao Paulo"]
[Date "2019.06.22"]
[Round "5"]
[White "Mesquita, Victor Noronha"]
[Black "Jefferson, Gary Michael"]
[Result "1-0"]
[ECO "A36"]
[WhiteElo "1103"]
[BlackElo "1055"]
[PlyCount "77"]
[EventDate "2019.06.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Qc2 Nf6 6. Nf3 d6 7. 0-0 0-0 8. d3 Ne5 9. Nxe5 dxe5 10. Bd2 Bf5 11. Rfd1 Bd7 12. Bxb7 Rb8 13. Bg2 Qc8 14. Ne4 Nxe4 15. dxe4 Bc6 16. Bc3 Qe6 17. b3 f5 18. exf5 Rxf5 19. Bh3 Rbf8 20. Bxf5 Rxf5 21. Rd8+ Bf8 22. Bd2 Kg7 23. Be3 h5 24. Bxc5 h4 25. Rdd1 h3 26. e4 Rf3 27. Qe2 Rf6 28. f4 exf4 29. Bd4 Qf7 30. gxf4 Kg8 31. Bxf6 exf6 32. Rd8 g5 33. fxg5 Kg7 34. gxf6+ Qxf6 35. Qg4+ Kf7 36. Rxf8+ Kxf8 37. Rf1 Qxf1+ 38. Kxf1 Ke7 39. Qg7+ 1-0

[Event "BRA-ch Amateur U1600"]
[Site "Sao Paulo"]
[Date "2019.06.21"]
[Round "3"]
[White "Ataide, Igor Silva"]
[Black "Jefferson, Gary Michael"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1270"]
[BlackElo "1055"]
[PlyCount "45"]
[EventDate "2019.06.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. exd5 exd5 4. d4 Bb4+ 5. Bd2 Bxd2+ 6. Nbxd2 Nf6 7. c3 0-0 8. Be2 Nbd7 9. 0-0 c5 10. Re1 Qb6 11. Qc2 Qc7 12. Rac1 Ne4 13. Nxe4 dxe4 14. Qxe4 Nf6 15. Qc2 b6 16. dxc5 Qxc5 17. Nd4 Bb7 18. Bf3 Bd5 19. Bxd5 Qxd5 20. Qb3 Qd6 21. Rcd1 a5 22. Ne6 Rfe8 23. Rxd6 1-0

[Event "BRA-ch Amateur U1600"]
[Site "Sao Paulo"]
[Date "2019.06.21"]
[Round "4"]
[White "Jefferson, Gary Michael"]
[Black "De Lima, Joel Maximino"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1055"]
[BlackElo "1384"]
[PlyCount "108"]
[EventDate "2019.06.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. c3 Be7 5. Nf3 Nh5 6. Bg3 Nxg3 7. hxg3 Nd7 8. Nbd2 c5 9. Bd3 c4 10. Bxh7 Nf6 11. Qc2 g6 12. Ne5 Rxh7 13. Rxh7 Nxh7 14. 0-0-0 Kf8 15. Rh1 Kg7 16. Qd1 Bf6 17. Qg4 Bxe5 18. dxe5 b5 19. Qh3 Qg8 20. f4 Bb7 21. Qh6+ Kh8 22. Nf3 Qg7 23. Qxg7+ Kxg7 24. Kd2 Rh8 25. g4 f6 26. exf6+ Nxf6 27. Rxh8 Kxh8 28. Ne5 Kh7 29. g5 Ne4+ 30. Ke2 Nc5 31. Kf2 Nd3+ 32. Nxd3 cxd3 33. Ke1 d4 34. cxd4 Bxg2 35. Kd2 Be4 36. Kd1 Kg7 37. Kd2 Kf7 38. Kd1 Ke7 39. Kd2 Kd6 40. Kd1 Kd5 41. b3 Bf5 42. Kd2 a5 43. a3 b4 44. a4 Ke4 45. Kd1 Kxe3 46. d5 exd5 47. Kc1 d2+ 48. Kd1 Bg4+ 49. Kc2 d1Q+ 50. Kb2 Qd4+ 51. Kc2 Qc3+ 52. Kb1 Bf5+ 53. Ka2 Qc2+ 54. Ka1 Qb1# 0-1

[Event "BRA-ch Amateur U1600"]
[Site "Sao Paulo"]
[Date "2019.06.20"]
[Round "1"]
[White "Jefferson, Gary Michael"]
[Black "Cardoso, Sergio Carlos De Al"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1055"]
[BlackElo "1507"]
[PlyCount "46"]
[EventDate "2019.06.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 e6 2. Bf4 d5 3. e3 Bd6 4. c3 Bxf4 5. exf4 Qd6 6. Nf3 Qxf4 7. Be2 Nc6 8. 0-0 Nf6 9. Nfd2 0-0 10. Na3 Ne7 11. b4 Ng6 12. c4 Qxd4 13. cxd5 Nxd5 14. Rc1 Qxb4 15. Ndc4 Qe7 16. Rc3 Nxc3 17. Qc2 Nxe2+ 18. Qxe2 Bd7 19. Qb2 b6 20. Qc3 c5 21. Ne3 Bc6 22. Nac2 Nf4 23. f3 Ne2+ 0-1

[Event "BRA-ch Amateur U1600"]
[Site "Sao Paulo"]
[Date "2019.06.20"]
[Round "2"]
[White "Mathias, Carlos Augusto De C"]
[Black "Jefferson, Gary Michael"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1482"]
[BlackElo "1055"]
[PlyCount "35"]
[EventDate "2019.06.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. c4 d6 2. Nc3 Nf6 3. e4 e5 4. Nge2 Bg4 5. f3 Be6 6. Rb1 Bxc4 7. Qa4+ Nc6 8. Qxc4 Nd4 9. Nxd4 exd4 10. Qxd4 c5 11. Qa4+ Qd7 12. Bb5 Qxb5 13. Qxb5+ Nd7 14. Qxb7 Rb8 15. Qc6 Be7 16. 0-0 Rd8 17. Nd5 Rc8 18. Qxc8+ 1-0

[Event "Curitiba Fexpar op 1st"]
[Site "Curitiba"]
[Date "2018.11.03"]
[Round "5"]
[White "Jefferson, Gary Michael"]
[Black "Sabadin, Rosan"]
[Result "0-1"]
[ECO "A54"]
[BlackElo "1452"]
[PlyCount "67"]
[EventDate "2018.11.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 d6 2. c4 Nf6 3. Nc3 Nbd7 4. Nf3 e5 5. Bg5 Be7 6. Nd5 Nxd5 7. Bxe7 Nxe7 8. dxe5 dxe5 9. e3 c6 10. Qd2 0-0 11. Bd3 Ng6 12. 0-0 Nc5 13. Rad1 Nxd3 14. Qxd3 Qxd3 15. Rxd3 e4 16. Rd4 exf3 17. g3 Be6 18. b4 Rad8 19. Rfd1 Rxd4 20. exd4 Bxc4 21. h3 h6 22. h4 a6 23. Kh2 Re8 24. a3 Re2 25. h5 Ne7 26. Rc1 Bd5 27. g4 Rxf2+ 28. Kg3 Rg2+ 29. Kh3 f2 30. Rf1 f5 31. g5 hxg5 32. h6 gxh6 33. Rxf2 Rxf2 34. Kg3 0-1

[Event "Curitiba Fexpar op 1st"]
[Site "Curitiba"]
[Date "2018.11.02"]
[Round "1"]
[White "Jefferson, Gary Michael"]
[Black "Nobre, Jailson Altair Barb"]
[Result "0-1"]
[ECO "E21"]
[BlackElo "1682"]
[PlyCount "72"]
[EventDate "2018.11.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 b6 6. Nf3 h6 7. Bf4 Bb7 8. e3 0-0 9. Bd3 d6 10. 0-0 Nbd7 11. d5 e5 12. Bf5 exf4 13. Bxd7 Qxd7 14. exf4 Rfe8 15. Re1 Rxe1+ 16. Qxe1 Re8 17. Qf1 Ba6 18. Re1 Nxd5 19. Rxe8+ Qxe8 20. cxd5 Bxf1 21. Kxf1 Qb5+ 22. Ke1 Qxd5 23. h3 Qe4+ 24. Kd2 Qxf4+ 25. Kd3 c5 26. c4 Kf8 27. Ke2 Qxc4+ 28. Ke3 d5 29. Ne5 Qe4+ 30. Kd2 Qxe5 31. f3 d4 32. g4 Qe3+ 33. Kc2 Qc3+ 34. Kd1 d3 35. g5 Qc2+ 36. Ke1 Qe2# 0-1

[Event "Blumenau STD op"]
[Site "Blumenau"]
[Date "2018.09.30"]
[Round "5"]
[White "Jefferson, Gary Michael"]
[Black "Flesch, Gustavo Henrique"]
[Result "0-1"]
[ECO "E43"]
[BlackElo "1251"]
[PlyCount "24"]
[EventDate "2018.09.28"]
[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. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Nf3 Bb7 6. Bd3 0-0 7. 0-0 d6 8. e4 Bxc3 9. bxc3 Nxe4 10. Ng5 Nxg5 11. Bxg5 Qxg5 12. Qc2 Qxg2# 0-1

[Event "Blumenau STD op"]
[Site "Blumenau"]
[Date "2018.09.30"]
[Round "6"]
[White "Martins, Lara"]
[Black "Jefferson, Gary Michael"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "1191"]
[PlyCount "61"]
[EventDate "2018.09.28"]
[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 e6 2. Nf3 d5 3. exd5 Qxd5 4. Nc3 Qa5 5. d4 Nc6 6. Bf4 Nf6 7. Bc4 Bd6 8. Bxd6 cxd6 9. 0-0 0-0 10. Qd3 Qf5 11. Qd2 d5 12. Bd3 Qh5 13. Rfe1 Nb4 14. Be2 Qh6 15. Qd1 Ne4 16. a3 Nxc3 17. bxc3 Nc6 18. Ne5 Nxe5 19. dxe5 Bd7 20. c4 b6 21. cxd5 Rac8 22. c4 Rc5 23. Qd3 b5 24. Qd4 Rc7 25. dxe6 Qxe6 26. Bd3 Qg4 27. Re4 Qe6 28. Rh4 h6 29. Qe4 Qf5 30. Qe3 bxc4 31. Bxf5 1-0

[Event "Blumenau STD op"]
[Site "Blumenau"]
[Date "2018.09.29"]
[Round "4"]
[White "Blau, Emily Camile"]
[Black "Jefferson, Gary Michael"]
[Result "1/2-1/2"]
[ECO "D06"]
[WhiteElo "1248"]
[PlyCount "105"]
[EventDate "2018.09.28"]
[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 d5 2. c4 Nf6 3. cxd5 Qxd5 4. Nc3 Qd6 5. e4 Qb4 6. a3 Qa5 7. Nf3 Nxe4 8. Qa4+ Qxa4 9. Nxa4 Bd7 10. Nc5 Nxc5 11. dxc5 Nc6 12. Bc4 Be6 13. Bxe6 fxe6 14. 0-0 0-0-0 15. Bf4 e5 16. Nxe5 Nxe5 17. Bxe5 Rd5 18. Bf4 e5 19. Be3 Bxc5 20. Bxc5 Rxc5 21. Rac1 Rxc1 22. Rxc1 Rd8 23. h3 h6 24. Re1 Re8 25. f4 e4 26. Kf2 e3+ 27. Rxe3 Rxe3 28. Kxe3 Kd7 29. g4 Ke7 30. f5 Kf7 31. Kf4 b5 32. Kg3 c5 33. Kh4 a5 34. Kh5 b4 35. h4 bxa3 36. bxa3 c4 37. g5 c3 38. f6 c2 39. fxg7 c1Q 40. Kxh6 Kg8 41. h5 Qc6+ 42. g6 Qd7 43. Kg5 Qxg7 44. h6 Qe7+ 45. Kh5 Qe5+ 46. Kg4 Qf6 47. h7+ Kh8 48. Kh5 Qf5+ 49. Kh6 Qf8+ 50. Kg5 Qg7 51. a4 Qe7+ 52. Kh5 Qg7 53. Kg5 1/2-1/2

[Event "Blumenau STD op"]
[Site "Blumenau"]
[Date "2018.09.29"]
[Round "3"]
[White "Moraes, Maurino Anastacio"]
[Black "Jefferson, Gary Michael"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "1604"]
[PlyCount "33"]
[EventDate "2018.09.28"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. b4 e6 2. Bb2 Bxb4 3. Bxg7 f6 4. Bxh8 Nc6 5. e3 Ne5 6. Qh5+ Nf7 7. Qg4 Nfh6 8. Qxb4 d6 9. Be2 Nf7 10. Bh5 e5 11. Nf3 b6 12. Qe4 d5 13. Qxh7 Ne7 14. Qxf7+ Kd7 15. Bxf6 Qg8 16. Nxe5+ Kd8 17. Qxg8# 1-0

[Event "Blumenau STD op"]
[Site "Blumenau"]
[Date "2018.09.28"]
[Round "2"]
[White "Jefferson, Gary Michael"]
[Black "De Oliveira, Guilherme Alfredo B"]
[Result "0-1"]
[ECO "E00"]
[BlackElo "1879"]
[PlyCount "50"]
[EventDate "2018.09.28"]
[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. c4 e6 3. Bg5 d5 4. c5 Be7 5. Nf3 0-0 6. e3 Ne4 7. Qe2 Nxg5 8. Nxg5 Bxg5 9. Qf3 Nc6 10. Bd3 e5 11. 0-0 e4 12. Bxe4 dxe4 13. Qxe4 Re8 14. Qd3 Nb4 15. Qc3 Nd5 16. Nd2 Nxc3 17. Rac1 Ne2+ 18. Kh1 Nxc1 19. Rxc1 Bxe3 20. fxe3 Rxe3 21. d5 Qxd5 22. Nf3 Rxf3 23. Re1 Bh3 24. b4 Rf1+ 25. Rxf1 Qxg2# 0-1

