[Event "Joao Pessoa de Assis Memorial 3rd"]
[Site "Joao Pessoa"]
[Date "2023.10.22"]
[Round "5"]
[White "Baltar, Petrov Ferreira"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1-0"]
[ECO "B82"]
[WhiteElo "1704"]
[BlackElo "1891"]
[PlyCount "61"]
[EventDate "2023.10.20"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. 0-0 Be7 8. f4 Qc7 9. a4 0-0 10. Kh1 Nbd7 11. Nb3 b6 12. Be3 Bb7 13. Bf3 Rfd8 14. Qd2 Nc5 15. Nxc5 dxc5 16. Qf2 e5 17. g3 Bc6 18. fxe5 Qxe5 19. Bf4 Qe6 20. Rfe1 Rd7 21. Qg2 Ng4 22. Nd5 Ne5 23. Bxe5 Qxe5 24. Nxb6 Re8 25. Nxd7 Bxd7 26. c3 Be6 27. Qe2 Bc8 28. Rad1 Bb7 29. Rd7 Bc6 30. Ra7 Bxa4 31. Qxa6 1-0

[Event "Joao Pessoa de Assis Memorial 3rd"]
[Site "Joao Pessoa"]
[Date "2023.10.22"]
[Round "6"]
[White "Espinola, Jose Mario"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "1555"]
[BlackElo "1891"]
[PlyCount "100"]
[EventDate "2023.10.20"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. a3 d5 4. Nf3 Nbd7 5. c5 e5 6. e3 c6 7. Nc3 e4 8. Nd2 b6 9. b4 g6 10. g3 Bg7 11. Bg2 Nf8 12. Qa4 b5 13. Qd1 a5 14. Bb2 Ne6 15. f3 exf3 16. Nxf3 0-0 17. 0-0 Ng4 18. Re1 Bh6 19. e4 Ne3 20. Qd3 axb4 21. axb4 Rxa1 22. Bxa1 Nxg2 23. Kxg2 Nc7 24. e5 Bf5 25. Qd1 Qc8 26. Ne2 Ne6 27. Neg1 Be4 28. Bc3 f6 29. h3 fxe5 30. Rxe4 dxe4 31. Nxe5 Re8 32. Qg4 Nc7 33. Qxc8 Rxc8 34. Nxc6 Nd5 35. Na7 Ra8 36. Nxb5 Rb8 37. Nd6 Nxc3 38. b5 Be3 39. c6 Bxd4 40. c7 Rf8 41. c8Q Rxc8 42. Nxc8 Nxb5 43. Ne7+ Kf7 44. Nc6 Ke6 45. Ne2 Bf6 46. Nb4 Kd6 47. Kf2 Nd4 48. Ke3 Nxe2 49. Kxe2 Bd4 50. h4 h5 0-1

[Event "Joao Pessoa de Assis Memorial 3rd"]
[Site "Joao Pessoa"]
[Date "2023.10.21"]
[Round "4"]
[White "De Oliveira, Jefferson Pereira"]
[Black "De Lima, Theo Magalhaes"]
[Result "0-1"]
[ECO "E12"]
[WhiteElo "1891"]
[BlackElo "1718"]
[PlyCount "121"]
[EventDate "2023.10.20"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 0-0 6. e3 Nbd7 7. Bd3 dxc4 8. Bxc4 c5 9. 0-0 b6 10. Qe2 Bb7 11. Rfd1 Rc8 12. Ba6 Bxa6 13. Qxa6 cxd4 14. Nxd4 Nc5 15. Qe2 Nd5 16. Bxe7 Nxc3 17. Bxd8 Nxe2+ 18. Nxe2 Rfxd8 19. Rac1 Kf8 20. g4 Ne4 21. Rxd8+ Rxd8 22. Nd4 e5 23. Nf3 f6 24. Rc7 Rd1+ 25. Kg2 Rb1 26. Rc4 Nc5 27. Rc2 Nd3 28. b3 a5 29. Rd2 Nc1 30. Rd6 Rb2 31. Rxb6 Nd3 32. Rd6 e4 33. Nd4 Rxf2+ 34. Kg3 Rxa2 35. Nf5 Ne5 36. Rd4 Ra3 37. Rxe4 Rxb3 38. Ra4 g6 39. Nd4 Rxe3+ 40. Kf4 Rd3 41. Ke4 Rh3 42. g5 Nd7 43. Rxa5 Rh4+ 44. Kd5 fxg5 45. Ra8+ Ke7 46. Nc6+ Kf6 47. Ra6 Kf5 48. Kd6 Nf6 49. Ra5+ Kg4 50. Ke6 Ne4 51. Ke5 Nd2 52. Kf6 Nf3 53. Ra4+ Kh5 54. Ra3 Nxh2 55. Nd8 Rf4+ 56. Kg7 g4 57. Ne6 Rf3 58. Ra5+ Rf5 59. Ra3 Nf3 60. Kxh7 Ng5+ 61. Nxg5 0-1

[Event "Joao Pessoa de Assis Memorial 3rd"]
[Site "Joao Pessoa"]
[Date "2023.10.21"]
[Round "3"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Souza, Marcos Valerio"]
[Result "1/2-1/2"]
[ECO "D50"]
[WhiteElo "1891"]
[BlackElo "1962"]
[PlyCount "109"]
[EventDate "2023.10.20"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nf3 e6 4. Nc3 cxd4 5. Nxd4 d5 6. Bg5 e5 7. Nc2 d4 8. Nd5 h6 9. Bxf6 gxf6 10. e3 Be6 11. exd4 Bxd5 12. cxd5 Qxd5 13. dxe5 Qa5+ 14. Qd2 Qxd2+ 15. Kxd2 fxe5 16. Bb5+ Nc6 17. Bxc6+ bxc6 18. Rae1 0-0-0+ 19. Kc3 Bg7 20. Re2 f5 21. Ne3 Rhf8 22. Kc2 Rd4 23. b3 e4 24. Rd1 c5 25. Nc4 Rfd8 26. Red2 h5 27. f3 Bh6 28. Rxd4 cxd4 29. fxe4 fxe4 30. Re1 d3+ 31. Kd1 Rd4 32. Rxe4 Rxe4 33. Nd6+ Kc7 34. Nxe4 Be3 35. Ng3 h4 36. Nf5 Bg5 37. Nd4 Kb6 38. Nf3 Be3 39. Ne5 Bf4 40. Nxd3 Bxh2 41. Ke2 Kc6 42. Ne1 Kc5 43. Kd3 Bg3 44. Nc2 Kd5 45. b4 Ke5 46. a4 Bf2 47. Ke2 Bb6 48. a5 Bd8 49. Kd3 Kf4 50. Kc4 Kg3 51. Ne3 Kf2 52. Kd3 Bg5 53. Nf5 Kxg2 54. Nxh4+ Bxh4 55. Kc4 1/2-1/2

[Event "Joao Pessoa de Assis Memorial 3rd"]
[Site "Joao Pessoa"]
[Date "2023.10.20"]
[Round "2"]
[White "Magalhaes, Gleidson Castelo Br"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "1800"]
[BlackElo "1891"]
[PlyCount "70"]
[EventDate "2023.10.20"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bc4 e6 4. Nc3 Nc6 5. d3 Nf6 6. 0-0 Be7 7. a3 0-0 8. h3 d5 9. Ba2 d4 10. Ne2 e5 11. Ng3 Ne8 12. Bd5 Qd6 13. Bg5 Nc7 14. Ba2 Be6 15. Bxe7 Nxe7 16. Nh2 Bxa2 17. Rxa2 f5 18. exf5 Nxf5 19. Ne4 Qc6 20. Ng4 Rae8 21. Ra1 Nd5 22. g3 c4 23. Qd2 c3 24. bxc3 dxc3 25. Qd1 Nd4 26. Nh2 Nf6 27. Re1 Nxe4 28. Rxe4 Qf6 29. f4 exf4 30. Rxf4 Qb6 31. Rxf8+ Rxf8 32. Kg2 Qf6 33. Ng4 Qc6+ 34. Kg1 Nf3+ 35. Kh1 Nh4+ 0-1

[Event "Joao Pessoa op"]
[Site "Joao Pessoa"]
[Date "2023.03.22"]
[Round "3"]
[White "Arruda Filho, Ivo Pereira de"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1660"]
[BlackElo "1873"]
[PlyCount "84"]
[EventDate "2023.03.17"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 d5 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. Nbd2 Nbd7 7. Re1 c5 8. c3 Qc7 9. e3 e5 10. dxe5 Nxe5 11. Nxe5 Qxe5 12. Nf3 Qc7 13. a4 a5 14. Ra3 Bd7 15. Qd3 Rfe8 16. Bd2 Ra6 17. Rc1 c4 18. Qe2 Bf8 19. Ra2 Ne4 20. Nd4 Rb6 21. Bxe4 dxe4 22. f4 exf3 23. Qxf3 Qe5 24. Rf1 f6 25. Qe2 Qd5 26. Qf3 Re4 27. Qg2 Bh6 28. Re1 Qe5 29. Qe2 Be8 30. Bc1 Bf7 31. Nc2 Rd6 32. Rd1 Bd5 33. Rd4 Rxd4 34. cxd4 Qe4 35. Kf2 Qh1 36. Ra1 Qxh2+ 37. Ke1 Qxg3+ 38. Kd2 f5 39. Kc3 Rb6 40. Qe1 Rb3+ 41. Kd2 Rd3+ 42. Ke2 Qf3# 0-1

[Event "Joao Pessoa op"]
[Site "Joao Pessoa"]
[Date "2023.03.19"]
[Round "5"]
[White "Jordao Barbosa, Marcio Ferre"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1-0"]
[ECO "B99"]
[WhiteElo "2099"]
[BlackElo "1873"]
[PlyCount "65"]
[EventDate "2023.03.17"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. 0-0-0 Nbd7 10. g4 0-0 11. Bg2 Rb8 12. h4 b5 13. e5 Bb7 14. Nc6 Bxc6 15. Qxc6 Qa7 16. exf6 gxf6 17. Bh6 Rfc8 18. Qf3 a5 19. Qe2 a4 20. Rh3 b4 21. Nb5 Qc5 22. Nd4 b3 23. axb3 a3 24. bxa3 Qxa3+ 25. Kd2 Qb4+ 26. c3 Rxc3 27. Rxc3 Qxd4+ 28. Rd3 Qb4+ 29. Ke3 Nc5 30. Kf2 Nxd3+ 31. Rxd3 f5 32. Kg3 Qc5 33. gxf5 1-0

[Event "Joao Pessoa op"]
[Site "Joao Pessoa"]
[Date "2023.03.18"]
[Round "4"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Da Silva, Arthur Moura Viera"]
[Result "1-0"]
[ECO "D48"]
[WhiteElo "1873"]
[BlackElo "1963"]
[PlyCount "103"]
[EventDate "2023.03.17"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. 0-0 a6 10. Qe2 Be7 11. b3 0-0 12. Rd1 Qb6 13. Bb2 c5 14. Nb1 Rac8 15. Nbd2 Rfd8 16. e4 cxd4 17. e5 Nd5 18. Bxd4 Qa5 19. Ne4 Nf4 20. Qe3 Nxd3 21. Rxd3 Bxe4 22. Qxe4 Nf8 23. h4 Qa3 24. Rdd1 Rd5 25. Re1 Bb4 26. Re2 Bc3 27. Bxc3 Rxc3 28. Rae1 Qc5 29. h5 h6 30. Re3 Rxe3 31. Qxe3 Qxe3 32. Rxe3 Nd7 33. Kf1 g5 34. g4 f6 35. exf6 Kf7 36. Ne1 Kxf6 37. Ke2 Nb6 38. Rc3 Re5+ 39. Kd1 Rd5+ 40. Ke2 Rd6 41. Rc7 Nd5 42. Rh7 Nc3+ 43. Ke3 Nxa2 44. Rxh6+ Kf7 45. Nf3 Nb4 46. Nxg5+ Ke7 47. Rh7+ Kf8 48. h6 Nd5+ 49. Kf3 e5 50. Rf7+ Ke8 51. h7 Rh6 52. Ra7 1-0

[Event "Joao Pessoa op"]
[Site "Joao Pessoa"]
[Date "2023.03.17"]
[Round "2"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Borensztajn, David"]
[Result "1-0"]
[ECO "A81"]
[WhiteElo "1873"]
[BlackElo "1563"]
[PlyCount "67"]
[EventDate "2023.03.17"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 g6 3. g3 Bg7 4. Bg2 d6 5. 0-0 Nh6 6. Nc3 Nf7 7. e4 0-0 8. Qe2 fxe4 9. Nxe4 Nc6 10. c3 e5 11. d5 Ne7 12. Qd3 c6 13. c4 cxd5 14. cxd5 h6 15. b3 Bf5 16. Nh4 Rc8 17. Be3 Qa5 18. Rfd1 Bg4 19. f3 Bf5 20. g4 Bxe4 21. Qxe4 Nh8 22. g5 h5 23. Bh3 Rc3 24. Bd2 Qc5+ 25. Kh1 Rc2 26. Rac1 Rxc1 27. Rxc1 Qf2 28. Qe1 Qxe1+ 29. Bxe1 Nf5 30. Nxf5 gxf5 31. Rc7 e4 32. fxe4 fxe4 33. Be6+ Kh7 34. Bc3 1-0

[Event "Joao Pessoa de Assis Memorial 2nd"]
[Site "Joao Pessoa"]
[Date "2022.10.23"]
[Round "6"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Andrade, Roberto Luiz Costa"]
[Result "1-0"]
[ECO "A47"]
[WhiteElo "1857"]
[BlackElo "1989"]
[PlyCount "113"]
[EventDate "2022.10.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. e3 e6 4. Bd3 b6 5. 0-0 Be7 6. Qe2 Nc6 7. c3 Bb7 8. Nbd2 0-0 9. Rd1 Qc7 10. Nf1 Rac8 11. Ng3 Rfe8 12. Ng5 h6 13. N5e4 Nxe4 14. Nxe4 f5 15. Ng3 d5 16. Nh5 Bd6 17. f4 Qf7 18. g4 Qg6 19. Ng3 Ne7 20. gxf5 exf5 21. Qg2 Kh8 22. Be2 Qf7 23. Qh3 Kh7 24. Bd2 g6 25. Kh1 Rg8 26. Bd3 Rcf8 27. Rf1 Bc8 28. Rf3 Be6 29. Rg1 Nc8 30. Ne2 Be7 31. Be1 Nd6 32. Qf1 Ne4 33. Rg2 c4 34. Bc2 b5 35. Ng1 a5 36. Rh3 Rb8 37. Nf3 Bf6 38. Bh4 Bxh4 39. Rxh4 Qf6 40. Qe1 Bf7 41. Ne5 Be8 42. Nf3 b4 43. Bxe4 fxe4 44. Ng5+ Kg7 45. Rxh6 Kxh6 46. Qh4+ Kg7 47. Qh7+ Kf8 48. Qc7 Rg7 49. Qxb8 bxc3 50. bxc3 Re7 51. Qd8 Kg7 52. Qxd5 Qb6 53. Qxc4 Qb1+ 54. Rg1 Qd3 55. Qc5 Kf8 56. f5 gxf5 57. Nh7+ 1-0

[Event "Joao Pessoa de Assis Memorial 2nd"]
[Site "Joao Pessoa"]
[Date "2022.10.23"]
[Round "5"]
[White "De Oliveira, Jefferson Pereira"]
[Black "De Lima, Enzo Magalhaes"]
[Result "1/2-1/2"]
[ECO "D63"]
[WhiteElo "1857"]
[BlackElo "1894"]
[PlyCount "49"]
[EventDate "2022.10.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 c6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Be7 7. Bd3 0-0 8. 0-0 dxc4 9. Bxc4 b5 10. Be2 a6 11. Rc1 Bb7 12. a3 c5 13. dxc5 Nxc5 14. Nd4 Qb6 15. Bf3 Bxf3 16. Qxf3 Rac8 17. Rfd1 h6 18. Bh4 Rfd8 19. Na2 Na4 20. Qe2 Nd5 21. Bxe7 Nxe7 22. b3 Nc5 23. Qb2 Nd5 24. Nc3 Nxc3 25. Qxc3 1/2-1/2

[Event "Joao Pessoa de Assis Memorial 2nd"]
[Site "Joao Pessoa"]
[Date "2022.10.22"]
[Round "3"]
[White "Da Silva Junior, Emanuel Tavares"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "1465"]
[BlackElo "1857"]
[PlyCount "50"]
[EventDate "2022.10.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bc4 Nc6 4. c3 Nf6 5. d4 d5 6. exd5 Nxd5 7. Bg5 Nb6 8. Bb5 Bg4 9. 0-0 Qd5 10. Bxc6+ bxc6 11. Be3 Rd8 12. Nbd2 e6 13. dxc5 Bxc5 14. Bxc5 Qxc5 15. Qb3 0-0 16. Rad1 Nd5 17. Qc4 Qxc4 18. Nxc4 Bxf3 19. gxf3 Rb8 20. Rd2 Rb5 21. Rfd1 f6 22. Kg2 Rc5 23. Ne3 Nf4+ 24. Kg3 Nh5+ 25. Kh4 Nf4 1/2-1/2

[Event "Joao Pessoa de Assis Memorial 2nd"]
[Site "Joao Pessoa"]
[Date "2022.10.22"]
[Round "4"]
[White "Gomes, Andre Luis Bernardi"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "0-1"]
[ECO "B86"]
[WhiteElo "1676"]
[BlackElo "1857"]
[PlyCount "58"]
[EventDate "2022.10.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bc4 Nf6 4. Nc3 e6 5. 0-0 Be7 6. d4 cxd4 7. Nxd4 0-0 8. Be3 a6 9. a3 Nbd7 10. f4 Qc7 11. Bd3 Nc5 12. Rc1 b5 13. b4 Ncd7 14. Nde2 Bb7 15. Ng3 Qxc3 16. Qe2 Rac8 17. f5 Ne5 18. h3 Nc4 19. Bxc4 Rxc4 20. Bf2 Nxe4 21. Nxe4 Rxe4 22. Qd1 Bd5 23. Qd3 Rc8 24. fxe6 fxe6 25. Qxc3 Rxc3 26. Be1 Rce3 27. Bd2 Re2 28. Rf2 Bh4 29. Rxe2 Rxe2 0-1

[Event "Joao Pessoa de Assis Memorial 2nd"]
[Site "Joao Pessoa"]
[Date "2022.10.21"]
[Round "2"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Goldenbrain, Luiz Glaudivan Silv"]
[Result "1-0"]
[ECO "A49"]
[WhiteElo "1857"]
[BlackElo "1584"]
[PlyCount "105"]
[EventDate "2022.10.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 d6 5. 0-0 0-0 6. Re1 Re8 7. e4 Nc6 8. Nc3 Nd7 9. Be3 e5 10. d5 Ne7 11. Qd2 Nf8 12. a4 a6 13. Nh4 Bf6 14. Bh6 Kh8 15. Nf3 Ng8 16. Be3 Bg7 17. a5 Qe7 18. Ra4 f6 19. Qd3 Qf7 20. Rb4 g5 21. h3 Ng6 22. Nh2 N8e7 23. Rc4 Ng8 24. Qd1 Nf8 25. Bc1 Re7 26. Nf1 Qg6 27. Qd2 h6 28. g4 Nh7 29. Nd1 h5 30. Nde3 Nh6 31. Bf3 hxg4 32. Bxg4 Nxg4 33. hxg4 Qh6 34. Kg2 Nf8 35. Ng3 Qg6 36. Qc3 c6 37. dxc6 bxc6 38. Rxc6 Bb7 39. Rc4 Ne6 40. Nd5 Rf7 41. Nf5 Bxd5 42. exd5 Nf4+ 43. Bxf4 gxf4 44. Rh1+ Kg8 45. Rc8+ Rxc8 46. Qxc8+ Bf8 47. f3 e4 48. Nh6+ Kg7 49. Nxf7 exf3+ 50. Kxf3 Qxf7 51. Qf5 Kg8 52. g5 fxg5 53. Rh8+ 1-0

[Event "Joao Pessoa Fischer Memorial 11th"]
[Site "Joao Pessoa"]
[Date "2022.05.08"]
[Round "6"]
[White "Da Silva Neto, Nilo Gomes"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1-0"]
[ECO "B11"]
[WhiteElo "1811"]
[BlackElo "1859"]
[PlyCount "25"]
[EventDate "2022.05.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 e5 5. Bc4 f6 6. 0-0 g6 7. d4 exd4 8. Re1 Be7 9. Bxg8 Rxg8 10. Nxf6+ Kf7 11. Nxg8 Kxg8 12. Qxd4 Qf8 13. Bh6 1-0

[Event "Joao Pessoa Fischer Memorial 11th"]
[Site "Joao Pessoa"]
[Date "2022.05.08"]
[Round "5"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Azevedo, Eduardo Jose E"]
[Result "1-0"]
[ECO "A84"]
[WhiteElo "1859"]
[BlackElo "1672"]
[PlyCount "73"]
[EventDate "2022.05.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 e6 2. c4 d5 3. Nc3 f5 4. Nf3 c6 5. Bf4 Nf6 6. e3 Bd6 7. Bxd6 Qxd6 8. Bd3 0-0 9. 0-0 Ne4 10. Rc1 Nd7 11. Qe2 Ndf6 12. Ne5 Nd7 13. Nf3 Ndf6 14. c5 Qc7 15. b4 a6 16. a4 Bd7 17. Ne5 Nxc3 18. Rxc3 Ne4 19. Rc2 Be8 20. f3 Nf6 21. Qf2 Nd7 22. f4 Nf6 23. a5 Ne4 24. Qh4 Qd8 25. Qh3 Kh8 26. g4 g6 27. Rf3 Rc8 28. Qh6 Qf6 29. Rg2 Qg7 30. Qh3 Qf6 31. gxf5 Qxf5 32. Qh6 Rg8 33. Rh3 Rc7 34. Rg5 Qf8 35. Bxe4 Qxh6 36. Rxh6 dxe4 37. Rh3 1-0

[Event "Joao Pessoa Fischer Memorial 11th"]
[Site "Joao Pessoa"]
[Date "2022.05.07"]
[Round "4"]
[White "Campos, Alan Matos"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1-0"]
[ECO "A11"]
[BlackElo "1859"]
[PlyCount "103"]
[EventDate "2022.05.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. Bb2 Nbd7 5. g3 g6 6. Bg2 Bg7 7. 0-0 0-0 8. Qc2 Re8 9. d3 e5 10. e3 dxc4 11. dxc4 Qc7 12. b4 c5 13. b5 Nb6 14. e4 Bg4 15. Nbd2 Rad8 16. h3 Bc8 17. Rfd1 Nfd7 18. Nf1 Nf8 19. Ne3 Be6 20. Nd5 Qb8 21. a4 f6 22. Ne1 Nbd7 23. g4 Bf7 24. a5 Ne6 25. Nd3 Nd4 26. Bxd4 exd4 27. Qa4 Qd6 28. Rab1 Ne5 29. N3f4 Bh6 30. Ne2 Nd7 31. Qa3 Bf8 32. f4 Nb8 33. Rf1 Nd7 34. Nc1 Bg7 35. Nd3 Rc8 36. Rbe1 Qb8 37. Qa2 Qd6 38. Qf2 Rf8 39. Re2 Rce8 40. h4 h6 41. e5 fxe5 42. fxe5 Nxe5 43. Nxe5 Rxe5 44. Rxe5 Qxe5 45. Re1 Qd6 46. g5 Qd8 47. Ne7+ Kh7 48. h5 hxg5 49. Be4 Kh6 50. hxg6 Bxg6 51. Qh2+ Bh5 52. Bg6 1-0

[Event "Joao Pessoa Fischer Memorial 11th"]
[Site "Joao Pessoa"]
[Date "2022.05.07"]
[Round "3"]
[White "De Oliveira, Jefferson Pereira"]
[Black "De Medeiros, Yasmin Soares"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "1859"]
[BlackElo "1633"]
[PlyCount "103"]
[EventDate "2022.05.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 Bg4 5. Ne5 e6 6. Nxg4 Nxg4 7. e4 Nf6 8. e5 Nfd7 9. Bf4 dxc4 10. Bxc4 Nb6 11. Bb3 Bb4 12. 0-0 h5 13. Ne4 Be7 14. Qd2 Nd5 15. Bg5 f6 16. exf6 Nxf6 17. Nxf6+ gxf6 18. Bf4 e5 19. dxe5 Qxd2 20. Bxd2 fxe5 21. Bc3 Nd7 22. f4 Bc5+ 23. Kh1 Bd4 24. fxe5 Bxc3 25. bxc3 0-0-0 26. e6 Nc5 27. e7 Rde8 28. Rae1 Nxb3 29. axb3 Kd7 30. Rf7 Rh6 31. Kg1 Rd6 32. Re3 b5 33. b4 Rd2 34. Rh7 Rd5 35. Kf2 Rf5+ 36. Ke2 Rg5 37. g3 Rd5 38. h3 Kd6 39. g4 hxg4 40. hxg4 Re5 41. Rh6+ Kd5 42. Rh5 Rxh5 43. gxh5 c5 44. Kf3 cxb4 45. cxb4 Kd6 46. Kf4 Kd7 47. Kf5 Rxe7 48. Rxe7+ Kxe7 49. Ke5 Kf7 50. Kd5 a6 51. Kc5 a5 52. bxa5 1-0

[Event "Joao Pessoa Fischer Memorial 11th"]
[Site "Joao Pessoa"]
[Date "2022.05.06"]
[Round "2"]
[White "Barreto Filho, Carlos Alberto"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1-0"]
[ECO "B53"]
[WhiteElo "2293"]
[BlackElo "1859"]
[PlyCount "93"]
[EventDate "2022.05.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 a6 5. c4 Nc6 6. Qd2 Nf6 7. Nc3 g6 8. b3 Bg7 9. Bb2 0-0 10. h3 b6 11. Bd3 Bb7 12. 0-0 Nb8 13. Rfe1 Nbd7 14. Rac1 Nc5 15. Bb1 Rb8 16. b4 Ne6 17. Nd5 Nd7 18. Bxg7 Kxg7 19. h4 f6 20. h5 Ne5 21. Nd4 Bc8 22. hxg6 hxg6 23. Nxe6+ Bxe6 24. f4 Ng4 25. Ne3 Rh8 26. f5 Nxe3 27. Rxe3 Bf7 28. fxg6 Be6 29. Rg3 Rc8 30. Qd4 Rc6 31. Bd3 Qc7 32. Rf1 Rh5 33. Be2 Rh6 34. Bd3 Bxc4 35. Bxc4 Rxc4 36. Qd5 Rxg6 37. Rxg6+ Kxg6 38. Qg8+ Kh6 39. Qh8+ Kg6 40. Rf3 Rc1+ 41. Kh2 Kf7 42. Rg3 Ke6 43. Qh3+ Kf7 44. Qh5+ Ke6 45. Qf5+ Kf7 46. Qh5+ Ke6 47. Qg4+ 1-0

[Event "Joao Pessoa Fischer Memorial 11th"]
[Site "Joao Pessoa"]
[Date "2022.05.06"]
[Round "1"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Danda, Bruno"]
[Result "1-0"]
[ECO "E63"]
[WhiteElo "1859"]
[BlackElo "1420"]
[PlyCount "71"]
[EventDate "2022.05.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. c4 Nc6 7. Nc3 a6 8. Re1 Rb8 9. e4 b5 10. cxb5 axb5 11. h3 b4 12. Ne2 Nxe4 13. Qc2 Bb7 14. d5 Na5 15. Qxe4 c6 16. dxc6 Bxc6 17. Qh4 Bf6 18. Bg5 Re8 19. Ned4 Bd7 20. Rad1 Kg7 21. Qh6+ Kg8 22. Re4 Bg7 23. Qh4 f6 24. Bh6 e5 25. Nc2 Nc6 26. Bxg7 Kxg7 27. Nxb4 Ne7 28. Ree1 d5 29. Nxe5 Nf5 30. Qf4 g5 31. Qd2 fxe5 32. Nxd5 Nd4 33. Rxe5 Nf3+ 34. Bxf3 Rxe5 35. Qd4 Qe8 36. Re1 1-0

[Event "Joao Pessoa de Assis Memorial 1st"]
[Site "Joao Pessoa"]
[Date "2019.11.17"]
[Round "5"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Da Silva Tomaz, Luiz Antonio"]
[Result "0-1"]
[ECO "D26"]
[WhiteElo "1869"]
[BlackElo "2076"]
[PlyCount "56"]
[EventDate "2019.11.15"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 a6 5. e3 dxc4 6. Bxc4 b5 7. Be2 Bb7 8. 0-0 Nbd7 9. b3 c5 10. Bb2 Rc8 11. a4 b4 12. Nb1 Be7 13. Nbd2 0-0 14. a5 Qc7 15. Nc4 Rfd8 16. Rc1 Ne4 17. Bd3 Nd6 18. Qe2 Nxc4 19. Bxc4 Nb8 20. dxc5 Qxa5 21. Ne5 Rxc5 22. Qg4 Rxe5 23. f4 Rd2 24. Bxe5 Rxg2+ 25. Qxg2 Bxg2 26. Kxg2 Qb6 27. Bxb8 Qxb8 28. Bxa6 Qa8+ 0-1

[Event "Joao Pessoa de Assis Memorial 1st"]
[Site "Joao Pessoa"]
[Date "2019.11.17"]
[Round "6"]
[White "Oliveira, Ornan Filipe de Ara"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1-0"]
[ECO "B94"]
[WhiteElo "1739"]
[BlackElo "1869"]
[PlyCount "95"]
[EventDate "2019.11.15"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. f4 Qc7 8. Qf3 b5 9. Bd3 Bb7 10. a3 g6 11. Nb3 Bg7 12. 0-0 0-0 13. Qe2 Nb6 14. Rab1 e6 15. Kh1 d5 16. e5 Ne8 17. Nd4 Nc4 18. Bxc4 dxc4 19. Rbd1 Rc8 20. Ne4 Bd5 21. c3 Rb8 22. Nd2 Rc8 23. Rf2 Qb7 24. Nf1 Qc7 25. Ne3 Ba8 26. Ng4 h5 27. Nf6+ Bxf6 28. Bxf6 Qb7 29. Qe3 Qe4 30. Qxe4 Bxe4 31. Be7 Nc7 32. Bxf8 Kxf8 33. Kg1 Ke7 34. Nc2 Nd5 35. Nb4 a5 36. Nxd5+ exd5 37. Rfd2 Ke6 38. Kf2 b4 39. axb4 axb4 40. Ra1 bxc3 41. bxc3 Rc6 42. Ke3 f6 43. Kd4 Kf5 44. g3 Kg4 45. Rda2 fxe5+ 46. fxe5 Kh3 47. Re1 Bf5 48. Kxd5 1-0

[Event "Joao Pessoa de Assis Memorial 1st"]
[Site "Joao Pessoa"]
[Date "2019.11.16"]
[Round "4"]
[White "De Oliveira, Lincoln Robert Lem"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "1727"]
[BlackElo "1869"]
[PlyCount "78"]
[EventDate "2019.11.15"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nf3 0-0 6. d3 Nc6 7. a3 e6 8. Rb1 a5 9. Bf4 d6 10. Bg5 h6 11. Be3 Ng4 12. Bd2 f5 13. h3 Nf6 14. Nh4 Ne7 15. Na4 g5 16. Nf3 Ng6 17. Qb3 Ra6 18. Bc3 e5 19. Nd2 Qc7 20. e4 f4 21. 0-0 Bd7 22. Qc2 Qc8 23. Kh2 g4 24. h4 Nh5 25. Rfe1 Bf6 26. Nf1 Qd8 27. gxf4 Ngxf4 28. Ne3 Bxh4 29. Nf5 Bxf5 30. exf5 g3+ 31. fxg3 Bxg3+ 32. Kg1 Qh4 33. Bd5+ Nxd5 34. cxd5 Rxf5 35. Re2 Nf4 36. Be1 Bxe1 37. Rh2 Nh3+ 38. Rxh3 Qxh3 39. Rxe1 Rg5+ 0-1

[Event "Joao Pessoa de Assis Memorial 1st"]
[Site "Joao Pessoa"]
[Date "2019.11.16"]
[Round "3"]
[White "Fernandes, Italo Dantas Anteri"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "0-1"]
[ECO "E94"]
[WhiteElo "1521"]
[BlackElo "1869"]
[PlyCount "60"]
[EventDate "2019.11.15"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. e4 Bg7 5. Nf3 0-0 6. Be2 e5 7. d5 c6 8. 0-0 Na6 9. Be3 cxd5 10. cxd5 Nc5 11. Bxc5 dxc5 12. Qc2 Ne8 13. Rad1 Nd6 14. Nb5 b6 15. Nxd6 Qxd6 16. Nd2 f5 17. f3 Bd7 18. Nc4 Qf6 19. Na3 a6 20. Nc4 b5 21. Nd2 Qb6 22. Kh1 Rac8 23. b3 Bh6 24. Rde1 Qf6 25. Nb1 Qh4 26. a4 Bf4 27. h3 fxe4 28. fxe4 Bxh3 29. gxh3 Qxh3+ 30. Kg1 Be3+ 0-1

[Event "Joao Pessoa de Assis Memorial 1st"]
[Site "Joao Pessoa"]
[Date "2019.11.15"]
[Round "2"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Cavalcanti, Francisco de Assis"]
[Result "0-1"]
[ECO "E93"]
[WhiteElo "1869"]
[BlackElo "2297"]
[PlyCount "64"]
[EventDate "2019.11.15"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. c4 g6 4. Nc3 Bg7 5. e4 0-0 6. h3 e5 7. d5 c6 8. Be2 Na6 9. 0-0 Nc5 10. Qc2 cxd5 11. cxd5 a5 12. Be3 Nh5 13. Nd2 Nf4 14. Nc4 Qg5 15. Bxf4 exf4 16. Kh2 f3 17. Bxf3 Qf4+ 18. Kg1 Bxh3 19. Ne2 Qf6 20. Nxd6 Bxg2 21. Bxg2 Qxd6 22. Rac1 b6 23. f4 f6 24. Nd4 Bh6 25. Qf2 Nd3 26. Qh4 Nxc1 27. Rxc1 Qxf4 28. Qxf4 Bxf4 29. Re1 Be5 30. Ne6 Rfc8 31. Re2 Rc1+ 32. Kf2 Rac8 0-1

[Event "Joao Pessoa de Assis Memorial 1st"]
[Site "Joao Pessoa"]
[Date "2019.11.15"]
[Round "1"]
[White "De Oliveira, Jefferson Pereira"]
[Black "De Almeida, Valdemiza Gurgel"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "1869"]
[BlackElo "1353"]
[PlyCount "75"]
[EventDate "2019.11.15"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 d6 2. e4 Nd7 3. Nf3 g6 4. Bc4 Bg7 5. 0-0 c6 6. a4 Ngf6 7. Qe2 0-0 8. Nbd2 Qc7 9. Re1 e5 10. dxe5 dxe5 11. c3 a5 12. Nf1 Nc5 13. Ng3 Bd7 14. b4 Na6 15. Ba3 Rfe8 16. Ng5 Be6 17. Bxe6 fxe6 18. Qa2 Qd7 19. Rad1 Qc8 20. b5 Nc7 21. b6 Na6 22. Rd6 Bf8 23. Rxe6 Rxe6 24. Bxf8 Qxf8 25. Qxe6+ Kg7 26. Qxe5 Nc5 27. Qxc5 Qe8 28. h4 Rd8 29. h5 Kh6 30. hxg6 hxg6 31. f3 Rd5 32. exd5 Qxe1+ 33. Kh2 Nh5 34. Qf8+ Kxg5 35. Ne4+ Kh4 36. Qd8+ Nf6 37. Qxf6+ Kh5 38. Qg5# 1-0

[Event "Joao Pessoa U2100 3rd"]
[Site "Joao Pessoa"]
[Date "2019.07.22"]
[Round "11.4"]
[White "Da Silva, Antonio Dutra"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1/2-1/2"]
[ECO "E68"]
[WhiteElo "1758"]
[BlackElo "1881"]
[PlyCount "64"]
[EventDate "2019.07.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. c4 d6 6. Nc3 e5 7. d4 exd4 8. Nxd4 Nbd7 9. h3 Re8 10. e4 Nc5 11. Re1 h6 12. Rb1 a5 13. a4 Bd7 14. b3 Re7 15. Nd5 Nxd5 16. cxd5 Qe8 17. f3 f5 18. Bb2 fxe4 19. fxe4 Be5 20. Ne2 Bxb2 21. Rxb2 Nxe4 22. Nf4 Nxg3 23. Rxe7 Qxe7 24. Ne6 Nf5 25. Re2 Re8 26. Re4 Bxe6 27. Rxe6 Qf7 28. Qe1 Ng7 29. Rxe8+ Qxe8 30. Qxa5 Qe3+ 31. Kh2 Qf4+ 32. Kh1 Qc1+ 1/2-1/2

[Event "Joao Pessoa U2100 3rd"]
[Site "Joao Pessoa"]
[Date "2019.07.21"]
[Round "10.4"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Gomes, Genildo de Souza"]
[Result "0-1"]
[ECO "D06"]
[WhiteElo "1881"]
[BlackElo "1628"]
[PlyCount "66"]
[EventDate "2019.07.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nc6 3. Bf4 Bf5 4. c4 e6 5. Nc3 Bb4 6. Rc1 Nf6 7. e3 Ne4 8. Bd3 Nxc3 9. bxc3 Bxd3 10. Qxd3 Bd6 11. Bxd6 dxc4 12. Bxc7 cxd3 13. Bxd8 Rxd8 14. Kd2 f6 15. Kxd3 e5 16. Rb1 Rd7 17. Ke2 e4 18. Nd2 f5 19. Rb5 0-0 20. Rhb1 b6 21. f3 Re7 22. fxe4 fxe4 23. Rf1 Rxf1 24. Kxf1 Nd8 25. Ke2 Nb7 26. Rg5 Kf7 27. Nc4 Kf6 28. Rg4 g5 29. h4 h6 30. hxg5+ hxg5 31. Nd2 Kf5 32. Rg3 g4 33. Kd1 Nd6 0-1

[Event "Joao Pessoa U2100 3rd"]
[Site "Joao Pessoa"]
[Date "2019.07.20"]
[Round "8.5"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Gonzales, Alejandro Terehoff"]
[Result "0-1"]
[ECO "D06"]
[WhiteElo "1881"]
[BlackElo "1751"]
[PlyCount "84"]
[EventDate "2019.07.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Bf5 3. c4 e6 4. Nc3 Nf6 5. Bg5 Be7 6. Qb3 Nc6 7. a3 Na5 8. Qa4+ c6 9. cxd5 b5 10. Qd1 exd5 11. e3 Nc4 12. Bxc4 dxc4 13. 0-0 0-0 14. Ne5 Qc7 15. Qf3 Bd7 16. a4 a5 17. axb5 cxb5 18. Bxf6 Bxf6 19. Nd5 Qd6 20. Nxd7 Qxd7 21. Nb6 Qa7 22. Nxa8 Rxa8 23. Qc6 Qa6 24. Qxa6 Rxa6 25. f4 Kf8 26. Kf2 Ke7 27. Ke2 Kd6 28. g4 Kd5 29. g5 Be7 30. Kf3 b4 31. Rfd1 c3 32. bxc3 bxc3 33. Ra4 Bb4 34. e4+ Kc4 35. Ke3 Kb3 36. Raa1 c2 37. Rh1 Bc3 38. Rac1 Bb2 39. Kd3 Bxc1 40. Rxc1 Rc6 41. d5 Rc3+ 42. Kd4 Kb2 0-1

[Event "Joao Pessoa U2100 3rd"]
[Site "Joao Pessoa"]
[Date "2019.07.19"]
[Round "6.6"]
[White "De Oliveira, Jefferson Pereira"]
[Black "De Moura Filho, Eny Nobrega"]
[Result "1-0"]
[ECO "D13"]
[WhiteElo "1881"]
[BlackElo "1382"]
[PlyCount "51"]
[EventDate "2019.07.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 Bf5 5. cxd5 cxd5 6. Qb3 e6 7. Qxb7 Nbd7 8. Bf4 Bb4 9. Rc1 a5 10. e3 0-0 11. h3 Ne4 12. Bb5 Nb6 13. Bc7 Qe7 14. Qxb6 Rac8 15. 0-0 Rxc7 16. Nxd5 Qd6 17. Qxd6 Nxd6 18. Nxc7 Nxb5 19. Nxb5 Bd3 20. a4 Bxf1 21. Kxf1 f6 22. Ke2 g5 23. Kd3 Kg7 24. Rc6 Re8 25. Nc7 e5 26. Nxe8+ 1-0

[Event "Joao Pessoa U2100 3rd"]
[Site "Joao Pessoa"]
[Date "2019.07.17"]
[Round "4.6"]
[White "Espinola, Jose Mario"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "1584"]
[BlackElo "1881"]
[PlyCount "72"]
[EventDate "2019.07.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. c5 e5 4. e3 Bf5 5. Nf3 e4 6. Nfd2 Nh6 7. Be2 Qg5 8. g3 Bh3 9. Bf1 Bxf1 10. Nxf1 Nd7 11. Bd2 Qf5 12. h3 Be7 13. Nc3 0-0 14. Ne2 b6 15. b4 a5 16. a3 Ra6 17. cxb6 axb4 18. axb4 Rxb6 19. Ra4 Rfb8 20. Qc1 c5 21. Rh2 cxb4 22. Qb2 Qe6 23. Qb3 Qc6 24. Nc1 Qc4 25. Ra7 R6b7 26. Ra5 Bd6 27. Rxd5 Qc7 28. Rg2 Ra7 29. Nh2 Ra3 30. Qb2 Qc6 31. Rxd6 Qxd6 32. Kf1 Qa6+ 33. Kg1 Qa4 34. Nf1 Nf5 35. Kh2 Nd6 36. Qb1 b3 0-1

[Event "Joao Pessoa U2100 3rd"]
[Site "Joao Pessoa"]
[Date "2019.07.15"]
[Round "?"]
[White "Dantas, Francisco"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1903"]
[BlackElo "1881"]
[PlyCount "60"]
[EventDate "2019.07.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 e6 2. Nf3 d5 3. d4 Nf6 4. Bf4 Bd6 5. Bxd6 Qxd6 6. e3 0-0 7. Nc3 c6 8. Be2 Nbd7 9. 0-0 Qe7 10. Qb3 dxc4 11. Bxc4 e5 12. d5 cxd5 13. Nxd5 Nxd5 14. Bxd5 Nb6 15. Be4 Be6 16. Qc3 f6 17. b3 Rac8 18. Qb2 Rc7 19. Rac1 Rfc8 20. Rfd1 Qb4 21. Rxc7 Rxc7 22. Qb1 h6 23. Bh7+ Kf8 24. Bg6 Rd7 25. Rc1 a5 26. Bf5 Bxf5 27. Qxf5 a4 28. Nxe5 Rc7 29. Ng6+ Kg8 30. Rd1 Rd7 1/2-1/2

[Event "Joao Pessoa U2100 3rd"]
[Site "Joao Pessoa"]
[Date "2019.07.14"]
[Round "1.3"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Galindo, Luciano Dutra"]
[Result "0-1"]
[ECO "D37"]
[WhiteElo "1881"]
[BlackElo "1727"]
[PlyCount "78"]
[EventDate "2019.07.14"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bf4 a6 6. e3 0-0 7. Bd3 dxc4 8. Bxc4 b5 9. Bd3 Bb7 10. 0-0 Nbd7 11. Rc1 c5 12. Qe2 c4 13. Bb1 Rc8 14. e4 Nh5 15. Be3 g6 16. e5 Ng7 17. Ne4 Nf5 18. a4 f6 19. Rfd1 Qe8 20. Qd2 Nxe3 21. Qxe3 fxe5 22. dxe5 Nc5 23. axb5 axb5 24. Nd6 Bxd6 25. exd6 Bxf3 26. gxf3 Qf7 27. b4 Nd7 28. Rc3 Qf6 29. Re1 Rfe8 30. Be4 Qe5 31. Qd2 Qf6 32. Ra3 Red8 33. Ra5 c3 34. Qd3 c2 35. Ra2 Rc3 36. Qd2 Rdc8 37. Rc1 Ne5 38. d7 Rd8 39. Qxc3 Qg5+ 0-1

[Event "Joao Pessoa Fischer Memorial 10th"]
[Site "Joao Pessoa"]
[Date "2019.03.31"]
[Round "6"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Souza, Marcos Valerio"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "1881"]
[BlackElo "1995"]
[PlyCount "81"]
[EventDate "2019.03.29"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 0-0 5. e4 d6 6. Bd3 Nbd7 7. Qc2 c5 8. d5 a6 9. h3 Nh5 10. 0-0 e5 11. Be3 Nf4 12. Ne2 Nxd3 13. Qxd3 f5 14. Nc3 Nf6 15. Nh2 fxe4 16. Qc2 Bf5 17. g4 Bc8 18. Nxe4 h5 19. f3 Nxe4 20. Qxe4 Qf6 21. Rf2 Bd7 22. Nf1 b5 23. b3 Rfb8 24. Rc1 a5 25. Ng3 h4 26. Nf1 a4 27. Nd2 b4 28. Qc2 axb3 29. axb3 Be8 30. Ne4 Qf8 31. Qd2 Ra3 32. Rb1 Rba8 33. Rb2 Bd7 34. Bg5 Kh7 35. Kg2 R8a7 36. Bxh4 Qf4 37. Bg5 Qxd2 38. Rfxd2 Bh6 39. Bxh6 Kxh6 40. Nxd6 R3a5 41. Nf7+ 1-0

[Event "Joao Pessoa Fischer Memorial 10th"]
[Site "Joao Pessoa"]
[Date "2019.03.31"]
[Round "5"]
[White "Queiroz, Matheus Erick Silva"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2019"]
[BlackElo "1881"]
[PlyCount "89"]
[EventDate "2019.03.29"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Bf4 Bf5 4. e3 e6 5. Bd3 Bg4 6. Nbd2 Bd6 7. Bg3 0-0 8. c3 c5 9. 0-0 Nc6 10. Qb1 c4 11. Bc2 b5 12. Ne5 Qc7 13. Nxg4 Nxg4 14. Bxh7+ Kh8 15. Bc2 f5 16. Qd1 g6 17. Bxd6 Qxd6 18. g3 Kg7 19. Kg2 Rh8 20. Nf3 Rh5 21. h3 Nf6 22. Nd2 g5 23. Qe2 Rah8 24. Rh1 Ne7 25. f4 Ng6 26. Nf3 g4 27. hxg4 Nxg4 28. Rxh5 Rxh5 29. Rh1 Rxh1 30. Kxh1 Qf8 31. Ng5 Qh8+ 32. Kg1 Kf6 33. e4 Nxf4 34. gxf4 Qh4 35. e5+ Ke7 36. Kg2 Qh2+ 37. Kf3 Qh1+ 38. Kg3 Qg1+ 39. Kh4 Qc1 40. Nxe6 Qh1+ 41. Kg5 Qh6+ 42. Kxf5 Qxe6+ 43. Kg5 Nh6 44. Bg6 Ng8 45. f5 1-0

[Event "Joao Pessoa Fischer Memorial 10th"]
[Site "Joao Pessoa"]
[Date "2019.03.30"]
[Round "3"]
[White "Araujo, Jose Roberto"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1/2-1/2"]
[ECO "B93"]
[WhiteElo "2107"]
[BlackElo "1881"]
[PlyCount "70"]
[EventDate "2019.03.29"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. 0-0 Bg7 9. Nf3 Nc6 10. Kh1 0-0 11. Qe1 b5 12. Qh4 b4 13. Ne2 Qa5 14. f5 Ne5 15. Bh6 e6 16. fxe6 fxe6 17. Ng5 Qc7 18. Nf4 Bxh6 19. Qxh6 Qe7 20. h3 Bd7 21. Rf2 Neg4 22. hxg4 Nxg4 23. Qh4 Nxf2+ 24. Kg1 Nxd3 25. cxd3 d5 26. exd5 e5 27. d6 Rxf4 28. Qxf4 exf4 29. dxe7 Re8 30. Rf1 h6 31. Ne4 Rxe7 32. Nf6+ Kg7 33. Nxd7 Rxd7 34. Rxf4 a5 35. d4 Rd5 1/2-1/2

[Event "Joao Pessoa Fischer Memorial 10th"]
[Site "Joao Pessoa"]
[Date "2019.03.30"]
[Round "4"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Damous, Felipe Soares"]
[Result "1/2-1/2"]
[ECO "D38"]
[WhiteElo "1881"]
[BlackElo "2119"]
[PlyCount "56"]
[EventDate "2019.03.29"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 Bb4 5. Bg5 0-0 6. e3 h6 7. Bh4 Nbd7 8. Bd3 b6 9. cxd5 exd5 10. 0-0 Bb7 11. Ne5 Be7 12. f4 c5 13. Qf3 a6 14. g4 b5 15. g5 hxg5 16. Bxg5 b4 17. Ne2 Ne4 18. Bxe7 Qxe7 19. Kh1 Nxe5 20. fxe5 Qh4 21. Nf4 cxd4 22. exd4 Nd2 23. Qf2 Qxf2 24. Rxf2 Ne4 25. Rg2 f6 26. e6 Rfe8 27. Be2 g5 28. Bh5 Rf8 1/2-1/2

[Event "Joao Pessoa Fischer Memorial 10th"]
[Site "Joao Pessoa"]
[Date "2019.03.29"]
[Round "1"]
[White "Cristovam, Arthur G Barbosa"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "0-1"]
[ECO "D00"]
[BlackElo "1881"]
[PlyCount "64"]
[EventDate "2019.03.29"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. Nc3 Bf5 4. Nb5 Na6 5. Nf3 c6 6. Nc3 e6 7. e3 Nb8 8. Be2 Bd6 9. Ne5 0-0 10. 0-0 Qe7 11. h3 h6 12. a3 Nbd7 13. Rb1 a6 14. Ra1 c5 15. Bh5 cxd4 16. exd4 Rac8 17. Qf3 Nxh5 18. Qxh5 Nf6 19. Qh4 Ne4 20. Qxe7 Bxe7 21. Rac1 Nxc3 22. bxc3 Rxc3 23. Nd7 Rfc8 24. Nb6 R8c6 25. Na4 Rxc2 26. g4 Bg6 27. Rfe1 Bxa3 28. Ra1 Be7 29. Kh2 Rxf2+ 30. Kg3 Rfc2 31. Kf3 Be4+ 32. Kg3 Rg2# 0-1

[Event "Joao Pessoa Fischer Memorial 10th"]
[Site "Joao Pessoa"]
[Date "2019.03.29"]
[Round "2"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Jordao Barbosa, Marcio Ferre"]
[Result "1-0"]
[ECO "D52"]
[WhiteElo "1881"]
[BlackElo "2132"]
[PlyCount "33"]
[EventDate "2019.03.29"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Nbd7 5. Bg5 c6 6. e3 Qa5 7. Nd2 dxc4 8. Bxf6 Nxf6 9. Nxc4 Qc7 10. Bd3 Be7 11. 0-0 0-0 12. Rc1 a6 13. Qf3 b5 14. Ne5 Bb7 15. Ne4 c5 16. Nxf6+ gxf6 17. Qg3+ 1-0

[Event "Joao Pessoa Fischer Memorial 9th"]
[Site "Joao Pessoa"]
[Date "2018.03.18"]
[Round "5"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Vital, Pablo Manoel Santan"]
[Result "0-1"]
[ECO "E68"]
[WhiteElo "1918"]
[BlackElo "1588"]
[PlyCount "54"]
[EventDate "2018.03.16"]
[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. Nf3 d6 3. c4 g6 4. g3 Bg7 5. Bg2 0-0 6. 0-0 c6 7. Nc3 Re8 8. e4 Nbd7 9. Qc2 e5 10. d5 cxd5 11. cxd5 Nc5 12. b4 Na6 13. Qb3 Bd7 14. Bd2 Rc8 15. Rfc1 h5 16. h3 Nh7 17. Rab1 g5 18. Nh2 g4 19. h4 f5 20. Qd1 Rf8 21. f3 f4 22. Be1 gxf3 23. Bxf3 Bf6 24. Bxh5 fxg3 25. Ng4 Qb6+ 26. Kh1 Bg5 27. hxg5 Rf1+ 0-1

[Event "Joao Pessoa Fischer Memorial 9th"]
[Site "Joao Pessoa"]
[Date "2018.03.18"]
[Round "6"]
[White "Leite, Ranieri Lopes"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1/2-1/2"]
[ECO "A02"]
[BlackElo "1918"]
[PlyCount "53"]
[EventDate "2018.03.16"]
[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. f4 f5 2. Nf3 Nf6 3. e3 e6 4. b3 b6 5. Bb2 Bb7 6. Be2 Be7 7. 0-0 0-0 8. h3 Ne4 9. Qe1 Bf6 10. Ne5 d6 11. Nd3 Nd7 12. Bf3 Rb8 13. Nc3 Nxc3 14. Bxc3 Bxc3 15. dxc3 Nf6 16. Bxb7 Rxb7 17. c4 a5 18. a4 Qd7 19. Rd1 Qc6 20. Qe2 Rbb8 21. Ne1 Ne4 22. Qf3 Qe8 23. Nd3 Rf6 24. Nf2 Nc5 25. Nd3 Ne4 26. Nf2 Nc5 27. Nd3 1/2-1/2

[Event "Joao Pessoa Fischer Memorial 9th"]
[Site "Joao Pessoa"]
[Date "2018.03.17"]
[Round "3"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Silva, Caio Marques"]
[Result "0-1"]
[ECO "D17"]
[WhiteElo "1918"]
[BlackElo "1658"]
[PlyCount "48"]
[EventDate "2018.03.16"]
[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 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 7. Nxc4 e6 8. Bg5 h6 9. Bh4 Be7 10. e3 0-0 11. Bd3 Bxd3 12. Qxd3 c5 13. 0-0 cxd4 14. Qxd4 Nc5 15. Bxf6 Bxf6 16. Qxc5 Rc8 17. Qb5 a6 18. Qb3 Bxc3 19. bxc3 Qd5 20. Nd2 Qxd2 21. Qxb7 Qd3 22. Rac1 Rb8 23. Qc7 Rfc8 24. Qa5 Qc4 0-1

[Event "Joao Pessoa Fischer Memorial 9th"]
[Site "Joao Pessoa"]
[Date "2018.03.17"]
[Round "4"]
[White "Meireles, Vitor Silva"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "0-1"]
[ECO "B25"]
[WhiteElo "1468"]
[BlackElo "1918"]
[PlyCount "80"]
[EventDate "2018.03.16"]
[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 c5 2. Nc3 Nc6 3. Nge2 Nf6 4. g3 g6 5. Bg2 Bg7 6. d3 0-0 7. 0-0 d6 8. Bg5 h6 9. Bxf6 Bxf6 10. Qd2 Bg7 11. h3 Rb8 12. Rab1 b5 13. f4 Bd7 14. g4 b4 15. Nd1 e6 16. f5 Ne5 17. Nf2 Qh4 18. Qe3 h5 19. gxh5 exf5 20. hxg6 fxg6 21. Qg3 Qxg3 22. Nxg3 f4 23. Ngh1 f3 24. Ng4 Bxg4 25. hxg4 fxg2 26. Kxg2 Nxg4 27. Rxf8+ Rxf8 28. Kg3 Nh6 29. Nf2 Be5+ 30. Kg2 Kg7 31. b3 Bd4 32. Nh3 Rf6 33. Kg3 Be5+ 34. Kg2 Ng4 35. Re1 Bd4 36. Re2 Ne3+ 37. Kg3 Be5+ 38. Kh4 Nd1 39. Ng5 Kh6 40. Re1 Rf4+ 0-1

[Event "Joao Pessoa Fischer Memorial 9th"]
[Site "Joao Pessoa"]
[Date "2018.03.16"]
[Round "1"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Campos, Harley Ramos"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1918"]
[PlyCount "75"]
[EventDate "2018.03.16"]
[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 d6 2. c4 e6 3. e4 h6 4. Nf3 Nf6 5. Nc3 Be7 6. Be2 0-0 7. 0-0 Nc6 8. a3 a6 9. Qc2 Bd7 10. b4 Nh7 11. Be3 f5 12. Rad1 fxe4 13. Nxe4 Qc8 14. c5 d5 15. Ng3 Qe8 16. Bd3 Nf6 17. Bg6 Qc8 18. Bd2 Ng4 19. Bf4 Rf6 20. Bh5 Qf8 21. Bxc7 Rc8 22. Bb6 Rf4 23. h3 Rxf3 24. gxf3 Qxf3 25. Bxg4 Qf7 26. Qd3 Bg5 27. Bh5 Qf4 28. Qf3 Rf8 29. Kg2 Nxd4 30. Qxf4 Rxf4 31. Bc7 Rh4 32. f4 Nf5 33. fxg5 Ne3+ 34. Kg1 Rxh3 35. Bf7+ Kh7 36. g6+ Kh8 37. Be8 Kg8 38. Bxd7 1-0

[Event "Joao Pessoa Fischer Memorial 9th"]
[Site "Joao Pessoa"]
[Date "2018.03.16"]
[Round "2"]
[White "Fiaes, Mario Henrique"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1-0"]
[ECO "D60"]
[WhiteElo "2147"]
[BlackElo "1918"]
[PlyCount "123"]
[EventDate "2018.03.16"]
[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. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 Nbd7 6. e3 0-0 7. h3 c6 8. c5 Re8 9. Bf4 Nf8 10. Bd3 Ng6 11. Bh2 Nd7 12. 0-0 Bf6 13. e4 e5 14. dxe5 Ngxe5 15. exd5 Nxd3 16. Qxd3 Nxc5 17. Qc4 Qb6 18. Rfe1 Bf5 19. dxc6 bxc6 20. Rad1 Be6 21. Qe2 Red8 22. Be5 Nd7 23. Bxf6 Nxf6 24. b3 h6 25. Rc1 Bf5 26. Ne5 Rac8 27. Qf3 Be6 28. Na4 Qb5 29. Nxc6 Bd5 30. Ne7+ Kf8 31. Nxd5 Qxd5 32. Qe3 Rxc1 33. Rxc1 Qd2 34. Qxd2 Rxd2 35. Rc8+ Ke7 36. Nc3 Rd7 37. Kf1 Ne8 38. Ke2 Nd6 39. Rc5 f6 40. Nb5 Nf7 41. Rc6 Ne5 42. Ra6 Nd3 43. g3 Nb4 44. Ra4 Nc6 45. Rc4 Nb8 46. Rc8 Rb7 47. Nd4 Kf7 48. Nf5 Kg6 49. Nh4+ Kf7 50. f4 Na6 51. Nf5 Rd7 52. a3 Nc7 53. Rb8 Ne6 54. b4 h5 55. Ke3 g6 56. Nh4 Nd4 57. Rc8 Nb5 58. a4 Nd6 59. Rc6 g5 60. fxg5 fxg5 61. Nf3 Nf5+ 62. Kf2 1-0

[Event "Paraiba-ch 25th"]
[Site "Joao Pessoa"]
[Date "2017.12.10"]
[Round "5"]
[White "Da Silva, Antonio Dutra"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "1767"]
[BlackElo "1925"]
[PlyCount "75"]
[EventDate "2017.12.08"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bc5 5. Bg2 0-0 6. 0-0 Re8 7. d3 h6 8. e3 d6 9. Na4 Be6 10. Nxc5 dxc5 11. a3 Qe7 12. Qc2 Rad8 13. Bd2 Rd6 14. b4 cxb4 15. axb4 Nd7 16. b5 Nd8 17. Rxa7 c5 18. Ba5 b6 19. Bc3 f6 20. Bb2 Qf8 21. Nh4 f5 22. Re1 Qf6 23. f4 Nf7 24. Bc6 Rd8 25. Nf3 g5 26. Bxd7 R6xd7 27. Rxd7 Rxd7 28. Nxe5 Nxe5 29. Bxe5 Qd8 30. Bb2 Kh7 31. d4 Kg6 32. d5 Bg8 33. g4 Qf8 34. Kf2 Bh7 35. h3 Kf7 36. Qc3 Ke8 37. Qe5+ Kf7 38. Qe6# 1-0

[Event "Paraiba-ch 25th"]
[Site "Joao Pessoa"]
[Date "2017.12.09"]
[Round "4"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Brito, Luismar Jorge"]
[Result "0-1"]
[ECO "A31"]
[WhiteElo "1925"]
[BlackElo "2317"]
[PlyCount "89"]
[EventDate "2017.12.08"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nc6 3. d4 cxd4 4. Nxd4 Qb6 5. Nc2 Nf6 6. Nc3 e6 7. e3 Be7 8. Be2 0-0 9. 0-0 d6 10. b3 Rd8 11. e4 a6 12. Ne3 Bd7 13. Kh1 Nd4 14. Bd3 Rac8 15. Bb2 Be8 16. Nc2 Nxc2 17. Bxc2 Qc5 18. Qe2 b5 19. cxb5 axb5 20. Rac1 b4 21. Nd1 Bb5 22. Bd3 Bxd3 23. Qxd3 Qa5 24. Ne3 Rxc1 25. Rxc1 Qxa2 26. Nd1 Qa5 27. Ra1 Qh5 28. Ne3 d5 29. exd5 Nxd5 30. Nf1 Qg6 31. Qxg6 hxg6 32. g3 Nc3 33. Rc1 Bf6 34. Rc2 Rd3 35. Kg2 Nd5 36. Bxf6 gxf6 37. Nd2 f5 38. Kf1 Nc3 39. Kg2 Kg7 40. Nc4 Nb5 41. Na5 Nd4 42. Rb2 Kf6 43. f4 Ke7 44. Kf2 f6 45. Rc2 0-1

[Event "Paraiba-ch 25th"]
[Site "Joao Pessoa"]
[Date "2017.12.08"]
[Round "2"]
[White "Barbosa, Paulo Eduardo E Sil"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1/2-1/2"]
[ECO "E07"]
[WhiteElo "2237"]
[BlackElo "1925"]
[PlyCount "97"]
[EventDate "2017.12.08"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 Be7 4. Bg2 d5 5. Nf3 0-0 6. 0-0 Nbd7 7. Qc2 c6 8. Nbd2 Bd6 9. e4 dxe4 10. Nxe4 Nxe4 11. Qxe4 Qf6 12. Re1 a5 13. Ne5 a4 14. Bf4 Bb4 15. Re2 a3 16. b3 Rd8 17. Nf3 h6 18. Rd1 Nf8 19. g4 Ng6 20. Bc1 Nh4 21. Nxh4 Qxh4 22. h3 h5 23. Rd3 hxg4 24. hxg4 Qh7 25. Qxh7+ Kxh7 26. Bg5 f6 27. Be4+ Kg8 28. Be3 Kf7 29. g5 f5 30. Bg2 e5 31. d5 e4 32. Rd1 cxd5 33. cxd5 Ra5 34. Rc2 Ra8 35. Bf1 Bd6 36. Bb6 Rh8 37. Bc7 Ke7 38. Bb5 f4 39. Re1 Bf5 40. Rc4 Bxc7 41. Rxc7+ Kd6 42. Rxb7 f3 43. Rb6+ Kc5 44. Rc6+ Kxb5 45. Rec1 Rac8 46. R1c5+ Kb4 47. Rc4+ Kb5 48. R4c5+ Kb4 49. Rc4+ 1/2-1/2

[Event "Paraiba-ch 25th"]
[Site "Joao Pessoa"]
[Date "2017.12.08"]
[Round "1"]
[White "De Oliveira, Jefferson Pereira"]
[Black "De Almeida, Valdemiza Gurgel"]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "1925"]
[BlackElo "1389"]
[PlyCount "75"]
[EventDate "2017.12.08"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 d6 2. c4 Nd7 3. e4 e5 4. Nf3 c6 5. Nc3 Qc7 6. Be2 g6 7. 0-0 Bg7 8. Be3 Ngf6 9. h3 0-0 10. Qc2 Re8 11. d5 a6 12. a4 c5 13. Rae1 Nh5 14. g3 Ndf6 15. Kh2 Kh8 16. Ng1 Ng8 17. Bxh5 gxh5 18. f4 Qe7 19. f5 h4 20. g4 Bd7 21. Nf3 Rab8 22. Qf2 b5 23. axb5 axb5 24. g5 bxc4 25. f6 Bxf6 26. gxf6 Nxf6 27. Bg5 Bxh3 28. Qxh4 Rxb2+ 29. Re2 Rxe2+ 30. Nxe2 Ng4+ 31. Kxh3 f6 32. Qxg4 fxg5 33. Nxg5 Qg7 34. Qh5 Re7 35. Ne6 Rxe6 36. dxe6 Qe7 37. Qh6 Kg8 38. Rf7 1-0

[Event "Paraiban-ch op"]
[Site "Joao Pessoa"]
[Date "2017.01.15"]
[Round "6"]
[White "Brito, Luismar Jorge"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1-0"]
[ECO "B21"]
[WhiteElo "2244"]
[BlackElo "1918"]
[PlyCount "35"]
[EventDate "2017.01.12"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. Nf3 e5 4. c3 dxc3 5. Nxc3 Nc6 6. Bc4 Bc5 7. Bg5 Qb6 8. 0-0 Nge7 9. Rc1 Bd4 10. Nd5 Nxd5 11. exd5 f6 12. dxc6 bxc6 13. Nxd4 Qxd4 14. Qxd4 exd4 15. Bf4 d5 16. Bb3 Kd7 17. Rfe1 Ba6 18. Bxd5 1-0

[Event "Paraiban-ch op"]
[Site "Joao Pessoa"]
[Date "2017.01.15"]
[Round "5"]
[White "Espinola, Jose Mario"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "0-1"]
[ECO "E00"]
[WhiteElo "1775"]
[BlackElo "1918"]
[PlyCount "126"]
[EventDate "2017.01.12"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. a3 d5 4. Nc3 Be7 5. Bf4 0-0 6. e3 c6 7. c5 Nbd7 8. h3 Re8 9. Be2 Bf8 10. Nf3 b6 11. b4 a5 12. 0-0 Bb7 13. Qc2 Nh5 14. Bh2 f5 15. Rfb1 b5 16. Ne5 Nhf6 17. f3 Nxe5 18. Bxe5 Nd7 19. Bh2 a4 20. f4 Nf6 21. Rf1 Bc8 22. Nxb5 cxb5 23. Bxb5 Ba6 24. Qxa4 Bxb5 25. Qxb5 Qd7 26. Qd3 Reb8 27. Rfc1 Qc6 28. Rcb1 Rb7 29. b5 Qc7 30. c6 Rbb8 31. a4 Qa5 32. Bg3 Bd6 33. Be1 Qd8 34. Qc2 Bc7 35. Ra2 Ne4 36. Bb4 Nd6 37. Bxd6 Qxd6 38. Qc5 Qd8 39. Rab2 Bb6 40. Qc2 Qc7 41. Ra2 Ra5 42. Qf2 Rba8 43. Rba1 R8a7 44. Qd2 Kf7 45. Kh2 Qe7 46. Qd1 Qf6 47. g3 Ke8 48. Qh5+ Qg6 49. Qh4 h6 50. g4 fxg4 51. hxg4 Rf7 52. Qh3 Qe4 53. Rf1 Kd8 54. Qh5 Ke7 55. Qh4+ Kd6 56. Qg3 Ke7 57. Rc1 Kd8 58. g5 Rf5 59. c7+ Bxc7 60. Rac2 Bd6 61. Qh4 Rxf4 62. exf4 Bxf4+ 63. Kh3 Qf3+ 0-1

[Event "Paraiban-ch op"]
[Site "Joao Pessoa"]
[Date "2017.01.14"]
[Round "4"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Da Silva Tomaz, Luiz Antonio"]
[Result "1/2-1/2"]
[ECO "D52"]
[WhiteElo "1918"]
[BlackElo "2095"]
[PlyCount "19"]
[EventDate "2017.01.12"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 c6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 dxc4 8. Bxf6 Nxf6 9. Nxc4 Qd8 10. Bd3 1/2-1/2

[Event "Paraiban-ch op"]
[Site "Joao Pessoa"]
[Date "2017.01.14"]
[Round "3"]
[White "Teixeira, Alexandre Cesar Fer"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1480"]
[BlackElo "1918"]
[PlyCount "66"]
[EventDate "2017.01.12"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Bf4 Bf5 4. e3 e6 5. Bd3 Bxd3 6. Qxd3 c6 7. Nbd2 Be7 8. c3 0-0 9. 0-0-0 b5 10. h3 Nbd7 11. g4 a5 12. g5 Ne8 13. Rhg1 Nd6 14. Nh4 b4 15. Ndf3 c5 16. g6 Ne4 17. gxh7+ Kh8 18. Rxg7 Kxg7 19. Rg1+ Kxh7 20. Ng5+ Bxg5 21. Bxg5 f6 22. Qe2 Qe8 23. Bf4 Qf7 24. Ng6 Qxg6 25. Rxg6 Kxg6 26. Qg4+ Kf7 27. f3 Nf2 28. Qh5+ Ke7 29. Kd2 Rh8 30. Qg6 Rag8 31. Qb1 Rg2 32. dxc5 Nxc5 33. cxb4 Nfe4+ 0-1

[Event "Paraiban-ch op"]
[Site "Joao Pessoa"]
[Date "2017.01.13"]
[Round "2"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Baltar, Petrov Ferreira"]
[Result "1-0"]
[ECO "E62"]
[WhiteElo "1918"]
[BlackElo "1733"]
[PlyCount "87"]
[EventDate "2017.01.12"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Nc6 7. Nc3 e5 8. d5 Ne7 9. e4 Ne8 10. b4 f5 11. c5 fxe4 12. Ng5 dxc5 13. bxc5 Nf5 14. Ba3 Qxg5 15. Nxe4 Qd8 16. Qb3 Nd4 17. Qc4 Kh8 18. Rad1 Nf3+ 19. Kh1 Nd4 20. f4 Nf5 21. Qb3 Nd4 22. Qc4 a6 23. fxe5 Rxf1+ 24. Rxf1 Nf5 25. Bc1 Bd7 26. a4 h6 27. e6 Bc8 28. Bh3 Ne7 29. Nc3 Nf6 30. Rd1 b5 31. cxb6 cxb6 32. d6 Bb7+ 33. Kg1 b5 34. Qd4 Rc8 35. Qe3 Ned5 36. Nxd5 Rxc1 37. Qxc1 Qxd6 38. Nxf6 Qb6+ 39. Kf1 Bxf6 40. Qxh6+ Kg8 41. Qxg6+ Bg7 42. Qe8+ Bf8 43. Qf7+ Kh8 44. Qxf8+ 1-0

[Event "Paraiban-ch op"]
[Site "Joao Pessoa"]
[Date "2017.01.12"]
[Round "1"]
[White "Barbosa, Paulo Eduardo E Sil"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "2263"]
[BlackElo "1918"]
[PlyCount "113"]
[EventDate "2017.01.12"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. Nf3 Bd6 6. 0-0 0-0 7. Nc3 Nbd7 8. Nd2 Re8 9. e4 dxe4 10. Ndxe4 Nxe4 11. Nxe4 Bc7 12. Bg5 f6 13. Be3 Nf8 14. Qc2 e5 15. Rad1 exd4 16. Bxd4 Qe7 17. Rfe1 Qf7 18. b3 Bg4 19. f3 Bf5 20. Bf1 Ne6 21. Bb2 Nc5 22. b4 Nxe4 23. fxe4 Bg4 24. Be2 Bxe2 25. Rxe2 Rad8 26. Rxd8 Rxd8 27. e5 fxe5 28. Bxe5 Bxe5 29. Rxe5 Qf3 30. Re1 h6 31. a4 Qf8 32. c5 Rd5 33. Qg6 Rd8 34. Qe6+ Qf7 35. Kg2 Rd4 36. Qxf7+ Kxf7 37. Rf1+ Ke6 38. Re1+ Kf6 39. Rb1 Rd2+ 40. Kh3 Ra2 41. Rf1+ Ke6 42. Re1+ Kd5 43. Re7 Rxa4 44. Rxb7 a5 45. Rd7+ Kc4 46. bxa5 Rxa5 47. Rxg7 Rxc5 48. g4 Kd4 49. Rh7 Rc3+ 50. Kh4 c5 51. Rxh6 c4 52. g5 Rc2 53. Kg3 c3 54. g6 Ra2 55. g7 c2 56. g8Q Ra3+ 57. Kf2 1-0

[Event "Recife Arraes Memorial 9th"]
[Site "Recife"]
[Date "2016.10.23"]
[Round "5.17"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Caio, Francisco Ferreira"]
[Result "1-0"]
[ECO "A85"]
[WhiteElo "1910"]
[BlackElo "1693"]
[PlyCount "53"]
[EventDate "2016.10.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 Be7 6. e3 0-0 7. Rc1 Ne4 8. Bxe7 Qxe7 9. Bd3 f5 10. 0-0 Nd7 11. Qc2 g5 12. Nd2 Nxc3 13. bxc3 b6 14. f3 Bb7 15. e4 dxc4 16. Bxc4 Kg7 17. Rce1 Qf6 18. exf5 e5 19. Be6 Qe7 20. Qe4 exd4 21. Qxd4+ Nf6 22. Ne4 Rad8 23. Qe5 Rd5 24. Qg3 Nxe4 25. fxe4 Rd2 26. f6+ Rxf6 27. Qxg5+ 1-0

[Event "Recife Arraes Memorial 9th"]
[Site "Recife"]
[Date "2016.10.23"]
[Round "6.13"]
[White "Frankental, David"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "0-1"]
[ECO "D46"]
[WhiteElo "1740"]
[BlackElo "1910"]
[PlyCount "76"]
[EventDate "2016.10.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. e3 0-0 6. Qc2 Nbd7 7. Bd3 Re8 8. 0-0 c6 9. Re1 Bd6 10. Bd2 dxc4 11. Bxc4 e5 12. Ng5 Rf8 13. Qb3 Qe7 14. Bxf7+ Rxf7 15. Qxf7+ Qxf7 16. Nxf7 Kxf7 17. dxe5 Nxe5 18. b3 Be6 19. f4 Nd3 20. Rf1 Rd8 21. h3 h5 22. e4 Bc5+ 23. Kh2 a6 24. e5 Nh7 25. f5 Bc8 26. Ne4 Bd4 27. e6+ Ke8 28. Bc3 Bxc3 29. Nxc3 Nf6 30. Rad1 Nb4 31. Rxd8+ Kxd8 32. Rd1+ Kc7 33. e7 Bxf5 34. Rd8 Bd7 35. a3 Nbd5 36. Nxd5+ cxd5 37. Kg1 Kd6 38. Rb8 Kxe7 0-1

[Event "Recife Arraes Memorial 9th"]
[Site "Recife"]
[Date "2016.10.22"]
[Round "4.14"]
[White "Da Silva, Anderson Vieira"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1-0"]
[ECO "B70"]
[WhiteElo "1652"]
[BlackElo "1910"]
[PlyCount "69"]
[EventDate "2016.10.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Nxd7 5. 0-0 Ngf6 6. Nc3 g6 7. d4 cxd4 8. Nxd4 Bg7 9. Be3 0-0 10. Qd2 Ne5 11. Bh6 Rc8 12. Bxg7 Kxg7 13. Rab1 a6 14. a4 Nc4 15. Qg5 Kh8 16. Nde2 Rc5 17. Qc1 Qb8 18. b3 Ne5 19. f4 Ned7 20. Qe3 Rfc8 21. Rbd1 Kg7 22. f5 Ne5 23. h3 Qc7 24. Nd5 Nxd5 25. exd5 Rxc2 26. Nd4 Rc3 27. Qg5 h6 28. Qf4 g5 29. Qe4 Kf6 30. Qe2 g4 31. Qf2 Rg8 32. Qh4+ Kg7 33. f6+ exf6 34. Rxf6 Kf8 35. Ne6+ 1-0

[Event "Recife Arraes Memorial 9th"]
[Site "Recife"]
[Date "2016.10.22"]
[Round "3.15"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Prisma, Zenil Da Costa"]
[Result "1-0"]
[ECO "D53"]
[WhiteElo "1910"]
[BlackElo "1739"]
[PlyCount "97"]
[EventDate "2016.10.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 Nbd7 5. Bg5 Be7 6. e3 a6 7. Rc1 dxc4 8. Bxc4 b5 9. Bd3 Bb7 10. 0-0 0-0 11. Qe2 Rc8 12. Rfd1 Nd5 13. Bxe7 Qxe7 14. a4 c6 15. Ne4 Nb4 16. Bb1 h6 17. Nc5 Nxc5 18. Rxc5 Rfd8 19. Rdc1 a5 20. axb5 cxb5 21. Rxc8 Rxc8 22. Rxc8+ Bxc8 23. Qxb5 Qd8 24. Ne5 g6 25. Qc5 Bb7 26. Nc4 Bd5 27. Nd6 Na6 28. Qc8 Qxc8 29. Nxc8 Kg7 30. f3 f5 31. Nd6 Nb4 32. Kf2 g5 33. e4 fxe4 34. fxe4 Ba8 35. Ke3 Kf6 36. Nc4 a4 37. Ne5 Nc6 38. Nd7+ Ke7 39. Nb6 Bb7 40. Nxa4 Ba6 41. Bd3 Bxd3 42. Kxd3 Kd6 43. e5+ Kc7 44. Nc5 Nd8 45. Kc4 Kc6 46. b4 g4 47. b5+ Kb6 48. Nd7+ Kb7 49. Nf6 1-0

[Event "Recife Arraes Memorial 9th"]
[Site "Recife"]
[Date "2016.10.21"]
[Round "2.2"]
[White "Brito, Luismar Jorge"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "2225"]
[BlackElo "1910"]
[PlyCount "117"]
[EventDate "2016.10.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. b3 Nf6 2. Bb2 d5 3. e3 Nbd7 4. f4 g6 5. Nf3 Bg7 6. Be2 0-0 7. 0-0 c5 8. Qe1 Ne4 9. Bxg7 Kxg7 10. d3 Nd6 11. g4 Kg8 12. c4 dxc4 13. bxc4 Nf6 14. Ne5 b6 15. Nc3 Bb7 16. Bf3 Qc7 17. Qh4 Rae8 18. Bxb7 Qxb7 19. Rf3 h5 20. e4 Kg7 21. g5 Nd7 22. Raf1 e6 23. a4 Nc8 24. Qf2 Ne7 25. Nb5 Rd8 26. Qb2 Kg8 27. Rh3 Nxe5 28. Qxe5 Nc6 29. Qf6 Qe7 30. Rb1 Qxf6 31. gxf6 Nd4 32. Kf2 Nc6 33. Rg1 Kh7 34. e5 Rd7 35. Nd6 Rfd8 36. Re3 Nd4 37. Rb1 Nc6 38. Rbe1 Nd4 39. Rh3 Nc6 40. Rg1 Nd4 41. Rgg3 Nc6 42. Ne4 Nb4 43. Ke2 Rd4 44. Ng5+ Kg8 45. Nxe6 Nxd3 46. Rxd3 fxe6 47. Rxd4 Rxd4 48. Rg3 Kf7 49. Rd3 Rxf4 50. Rd7+ Kf8 51. Ke3 Rxc4 52. Re7 g5 53. Rxe6 g4 54. Re7 h4 55. e6 Rc3+ 56. Ke4 Rf3 57. Ke5 Re3+ 58. Kf5 g3 59. Rxa7 1-0

[Event "Recife Arraes Memorial 9th"]
[Site "Recife"]
[Date "2016.10.21"]
[Round "1.21"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Dos Santos, Bruna Roberta GA"]
[Result "1-0"]
[ECO "D64"]
[WhiteElo "1910"]
[BlackElo "1367"]
[PlyCount "49"]
[EventDate "2016.10.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 Be7 6. e3 0-0 7. Rc1 Nbd7 8. Qc2 b6 9. cxd5 exd5 10. Bd3 Re8 11. 0-0 Bb7 12. Qa4 a6 13. b4 c5 14. bxc5 bxc5 15. Rb1 Qc7 16. Rfc1 Bc6 17. Qc2 Qa7 18. dxc5 Bxc5 19. Na4 Bxa4 20. Qxa4 Ne4 21. Bxe4 dxe4 22. Nd4 Bxd4 23. exd4 f6 24. Bf4 Nb6 25. Qb3+ 1-0

[Event "Paraibano-ch sf"]
[Site "Joao Pessoa"]
[Date "2016.10.16"]
[Round "4.2"]
[White "Da Silva Junior, Antonio Gomes"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "1875"]
[BlackElo "1910"]
[PlyCount "86"]
[EventDate "2016.10.14"]
[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 c5 2. Nf3 d6 3. Bc4 Nc6 4. c3 Nf6 5. d3 e6 6. Bg5 Be7 7. 0-0 0-0 8. Bb3 b5 9. Re1 d5 10. e5 Nd7 11. Bxe7 Qxe7 12. a4 b4 13. d4 Ba6 14. cxb4 Nxb4 15. dxc5 Qxc5 16. Re3 Rfc8 17. Nc3 Rab8 18. Rc1 Qe7 19. Nd4 Nc5 20. Ncb5 Ne4 21. f3 Qg5 22. Re1 Nd2 23. Rc3 Bxb5 24. axb5 Rxc3 25. bxc3 Nd3 26. Re2 Nxb3 27. Nxb3 Nf4 28. Ra2 Rxb5 29. Nd4 Rc5 30. Qe1 Nd3 31. Rxa7 h5 32. h4 Qf4 33. Ra8+ Kh7 34. Qb1 Rxc3 35. Nc2 Qd2 36. Ra2 Qf2+ 37. Kh2 Qxh4+ 38. Kg1 g6 39. Qf1 Qc4 40. Qb1 Qc5+ 41. Kh2 Qf2 42. Qb7 Nxe5 43. Ra8 Nxf3+ 0-1

[Event "Paraibano-ch sf"]
[Site "Joao Pessoa"]
[Date "2016.10.16"]
[Round "5.1"]
[White "Oliveira, Renato de Araujo"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2080"]
[BlackElo "1910"]
[PlyCount "66"]
[EventDate "2016.10.14"]
[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 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nc6 5. Nf3 Bg4 6. Be2 Nf6 7. h3 Bh5 8. 0-0 e6 9. Be3 cxd4 10. cxd4 Bd6 11. Nc3 Qa5 12. a3 Nd5 13. Nxd5 Qxd5 14. Qa4 0-0 15. Rac1 Rfd8 16. Rfd1 a6 17. Rd2 b5 18. Qd1 Rac8 19. g4 Bg6 20. Ne5 Ne7 21. Nxg6 hxg6 22. Bf1 Rxc1 23. Qxc1 Qb3 24. Rd3 Qa2 25. Rc3 Nd5 26. Rc8 Rxc8 27. Qxc8+ Kh7 28. Qxa6 Nxe3 29. fxe3 Bg3 30. Qxb5 Qb1 31. Qe2 Qe4 32. a4 e5 33. dxe5 Qxa4 1/2-1/2

[Event "Paraibano-ch sf"]
[Site "Joao Pessoa"]
[Date "2016.10.15"]
[Round "2.2"]
[White "Da Silva Tomaz, Luiz Antonio"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2065"]
[BlackElo "1910"]
[PlyCount "73"]
[EventDate "2016.10.14"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. e4 0-0 7. Be2 Nc6 8. Be3 d6 9. 0-0 Bd7 10. Rc1 Rc8 11. f3 Re8 12. Nxc6 Bxc6 13. b4 b6 14. Qb3 Qc7 15. Rfd1 Bd7 16. a4 Be6 17. Nd5 Qb7 18. Qa2 Kf8 19. a5 b5 20. cxb5 Nxd5 21. exd5 Rxc1 22. Bxc1 Bd7 23. b6 axb6 24. a6 Qc7 25. Be3 Qc3 26. Kf2 Qxb4 27. Rb1 Qh4+ 28. Kf1 Qxh2 29. Bxb6 Bf5 30. Rb4 Rc8 31. Rc4 Qh1+ 32. Kf2 Rxc4 33. Qxc4 Bf6 34. Bf1 Bh4+ 35. Ke2 Qh2 36. Bd4 Qg3 37. Qc1 1-0

[Event "Paraibano-ch sf"]
[Site "Joao Pessoa"]
[Date "2016.10.15"]
[Round "3.6"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Galindo, Luciano Dutra"]
[Result "1-0"]
[ECO "D64"]
[WhiteElo "1910"]
[PlyCount "101"]
[EventDate "2016.10.14"]
[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. Nf3 d5 3. c4 e6 4. Nc3 Be7 5. Bg5 0-0 6. e3 Nbd7 7. Rc1 c6 8. Qc2 Re8 9. Be2 dxc4 10. Bxc4 Nd5 11. Bxe7 Qxe7 12. 0-0 b6 13. Ne4 h6 14. a3 Bb7 15. Rfd1 Rac8 16. Qd3 Red8 17. Ba6 N7f6 18. Ng3 Rc7 19. Bxb7 Rxb7 20. Rxc6 Rc7 21. Rdc1 Rdc8 22. Rxc7 Rxc7 23. Rc4 Rxc4 24. Qxc4 Qc7 25. Ne5 Qxc4 26. Nxc4 Kf8 27. Kf1 Ke7 28. Ke2 g6 29. f3 h5 30. Kd3 h4 31. Ne2 Nd7 32. e4 N5f6 33. Ke3 Nh5 34. Nc3 a6 35. d5 e5 36. b4 b5 37. Nb2 f5 38. a4 bxa4 39. Ncxa4 f4+ 40. Kd3 Nhf6 41. Nc5 Ne8 42. Nc4 Nxc5+ 43. bxc5 Kf6 44. Kc3 Nc7 45. Kb4 g5 46. c6 g4 47. h3 gxh3 48. gxh3 Nxd5+ 49. exd5 e4 50. c7 e3 51. Kc3 1-0

[Event "Paraibano-ch sf"]
[Site "Joao Pessoa"]
[Date "2016.10.14"]
[Round "1.7"]
[White "De Oliveira, Jefferson Pereira"]
[Black "De Lima, Claudionor Henrique"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "1910"]
[BlackElo "1574"]
[PlyCount "65"]
[EventDate "2016.10.14"]
[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 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 Bf5 5. cxd5 Nxd5 6. Qb3 Nxc3 7. bxc3 Qb6 8. Bf4 Qxb3 9. axb3 Nd7 10. e3 h5 11. h3 f6 12. Nd2 e5 13. Bh2 exd4 14. exd4 g5 15. Be2 g4 16. h4 a6 17. 0-0 Bh6 18. Nc4 Bf8 19. Rfe1 Kf7 20. Nd6+ Bxd6 21. Bxd6 Rhe8 22. Kh2 Kg6 23. Kg3 Re6 24. Bf4 Rae8 25. Be3 Bc2 26. Rec1 Rxe3+ 27. fxe3 Rxe3+ 28. Kf2 Rxc3 29. Ke1 c5 30. Rxc2 Rxc2 31. Bd3+ f5 32. Bxc2 cxd4 33. Ra5 1-0

[Event "Joao Pessoa Fischer Memorial 7th"]
[Site "Joao Pessoa"]
[Date "2016.03.13"]
[Round "5"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Trigueiro, Hamilton Nobrega"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "1952"]
[BlackElo "1558"]
[PlyCount "77"]
[EventDate "2016.03.11"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 171 Extra"]
[Source "ChessBase"]
[SourceDate "2016.04.26"]
[SourceVersion "1"]
[SourceVersionDate "2016.04.26"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 c6 4. Nc3 h6 5. Bf4 Bf5 6. Qb3 Qb6 7. cxd5 Qxb3 8. axb3 cxd5 9. Bxb8 Rxb8 10. Rxa7 e6 11. e3 Bb4 12. Bb5+ Ke7 13. Ne5 Kf8 14. Ke2 g6 15. f3 Kg7 16. g4 Bc2 17. Rc1 Bxb3 18. h4 Rhc8 19. Kd3 Bc4+ 20. Bxc4 dxc4+ 21. Nxc4 Bxc3 22. Rxc3 Nd5 23. Rb3 b5 24. Nd6 Rc7 25. Rxb5 Rxb5 26. Ne8+ Kf8 27. Nxc7 Rb3+ 28. Kc2 Rxe3 29. Nxd5 exd5 30. b4 Rxf3 31. b5 Rf6 32. Kc3 Rb6 33. Kb4 Ke8 34. Kc5 Rb8 35. Kc6 f5 36. gxf5 gxf5 37. b6 Kd8 38. Rg7 Rc8+ 39. Kd6 1-0

[Event "Joao Pessoa Fischer Memorial 7th"]
[Site "Joao Pessoa"]
[Date "2016.03.13"]
[Round "6"]
[White "Leite, Joao Carlos Zirpoli"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1/2-1/2"]
[ECO "B84"]
[WhiteElo "1672"]
[BlackElo "1952"]
[PlyCount "15"]
[EventDate "2016.03.11"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 171 Extra"]
[Source "ChessBase"]
[SourceDate "2016.04.26"]
[SourceVersion "1"]
[SourceVersionDate "2016.04.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. Be3 Be7 8. Qd2 1/2-1/2

[Event "Joao Pessoa Fischer Memorial 7th"]
[Site "Joao Pessoa"]
[Date "2016.03.12"]
[Round "3"]
[White "Da Silva Nascimento, Gutemberg Jr"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1-0"]
[ECO "B08"]
[WhiteElo "1577"]
[BlackElo "1952"]
[PlyCount "105"]
[EventDate "2016.03.11"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 171 Extra"]
[Source "ChessBase"]
[SourceDate "2016.04.26"]
[SourceVersion "1"]
[SourceVersionDate "2016.04.26"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. h3 0-0 6. Bc4 Nbd7 7. 0-0 h6 8. Re1 e6 9. e5 Ne8 10. Bf4 d5 11. Bd3 c5 12. Qd2 Kh7 13. h4 cxd4 14. Nb5 Nc5 15. Nbxd4 Bd7 16. h5 Nxd3 17. Qxd3 Nc7 18. g3 Qe8 19. Kg2 Rh8 20. Rh1 Kg8 21. hxg6 fxg6 22. c3 Qf7 23. b3 Rf8 24. a4 g5 25. Be3 Be8 26. g4 Qg6 27. Qxg6 Bxg6 28. Kg1 Be4 29. Rh3 Rc8 30. Rc1 Kf7 31. Kf1 a6 32. Ke2 Rhf8 33. b4 b5 34. axb5 axb5 35. Ra1 Ra8 36. Rhh1 Ke7 37. Rhc1 Kd7 38. Rd1 Rfc8 39. Nd2 Bg6 40. f4 gxf4 41. Bxf4 Rf8 42. Ke3 Rfb8 43. N2b3 Rh8 44. Nc5+ Ke7 45. Nc6+ Kf7 46. Rf1 Rxa1 47. Rxa1 Ra8 48. Rxa8 Nxa8 49. Nb7 Nc7 50. Nd6+ Kg8 51. Nd4 Bf8 52. N6xb5 Nxb5 53. Nxb5 1-0

[Event "Joao Pessoa Fischer Memorial 7th"]
[Site "Joao Pessoa"]
[Date "2016.03.12"]
[Round "4"]
[White "Oliveira de Lima, Allan Kardec"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1/2-1/2"]
[ECO "A12"]
[WhiteElo "1800"]
[BlackElo "1952"]
[PlyCount "90"]
[EventDate "2016.03.11"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 171 Extra"]
[Source "ChessBase"]
[SourceDate "2016.04.26"]
[SourceVersion "1"]
[SourceVersionDate "2016.04.26"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. Bb2 Bf5 5. e3 e6 6. Be2 Bd6 7. 0-0 0-0 8. Nc3 Nbd7 9. Nh4 Be4 10. d3 Bg6 11. Nxg6 fxg6 12. cxd5 exd5 13. d4 Qe7 14. Bf3 Rae8 15. g3 g5 16. Bg2 h5 17. Qc2 Qf7 18. e4 dxe4 19. Nxe4 Nxe4 20. Bxe4 Qe6 21. Rae1 Qh6 22. Bf5 Nb6 23. Bg6 Rxe1 24. Rxe1 h4 25. Re6 Rf6 26. d5 hxg3 27. hxg3 Rxe6 28. dxe6 Qh3 29. Bf7+ Kf8 30. Qg6 Qh6 31. Qd3 Ke7 32. Bd4 g4 33. Bxb6 axb6 34. Qe4 Qg5 35. Qh7 Bc5 36. Qg8 Qe5 37. Qe8+ Kf6 38. Qd8+ Kf5 39. Qd3+ Kf6 40. Qd2 Qxg3+ 41. Kf1 Qh3+ 42. Kg1 g3 43. Qf4+ Ke7 44. Qc7+ Kf6 45. Qf4+ Ke7 1/2-1/2

[Event "Joao Pessoa Fischer Memorial 7th"]
[Site "Joao Pessoa"]
[Date "2016.03.11"]
[Round "2"]
[White "De Oliveira, Jefferson Pereira"]
[Black "De Lima, Claudionor Henrique"]
[Result "0-1"]
[ECO "D31"]
[WhiteElo "1952"]
[BlackElo "1555"]
[PlyCount "82"]
[EventDate "2016.03.11"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 171 Extra"]
[Source "ChessBase"]
[SourceDate "2016.04.26"]
[SourceVersion "1"]
[SourceVersionDate "2016.04.26"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 d5 3. c4 c6 4. Nc3 Bb4 5. Bf4 Bxc3+ 6. bxc3 Nf6 7. e3 Nbd7 8. Qb3 0-0 9. Bd3 Ne4 10. Qc2 Ndf6 11. 0-0 h5 12. a4 a5 13. Rab1 Nd6 14. Ne5 Nfe4 15. c5 f6 16. Ng6 Nf5 17. Nxf8 Qxf8 18. Bxe4 dxe4 19. Qxe4 g5 20. Bd6 Nxd6 21. Qg6+ Qg7 22. Qxg7+ Kxg7 23. cxd6 Rb8 24. Rb6 Kf7 25. e4 Ke8 26. e5 f5 27. f4 g4 28. g3 Ra8 29. Kg2 Ra7 30. h3 Bd7 31. hxg4 hxg4 32. Rfb1 c5 33. Rxb7 Bc6+ 34. Kf2 Rxb7 35. Rc1 Rb2+ 36. Ke3 c4 37. d5 Bxd5 38. Kd4 Kd7 39. Kc5 Ra2 40. Kb6 Rb2+ 41. Kc5 Rg2 0-1

[Event "Joao Pessoa op 6th"]
[Site "Joao Pessoa"]
[Date "2015.10.12"]
[Round "4"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Barbosa, Eugenio Seve de Me"]
[Result "0-1"]
[ECO "D79"]
[WhiteElo "1952"]
[BlackElo "2073"]
[PlyCount "86"]
[EventDate "2015.10.10"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d5 6. Re1 c5 7. c3 cxd4 8. cxd4 Nc6 9. Nc3 Ne4 10. h3 Nxc3 11. bxc3 e6 12. Bf4 Bd7 13. Qd2 Rc8 14. e4 dxe4 15. Rxe4 Na5 16. Ne5 Nc4 17. Nxc4 Rxc4 18. Ree1 Bc6 19. Rac1 Bxg2 20. Kxg2 Qd5+ 21. f3 Rfc8 22. Rc2 Qxd4 23. Rec1 Rxc3 24. Rxc3 Rxc3 25. Rxc3 Qxc3 26. Qd8+ Bf8 27. Bh6 Qc2+ 28. Qd2 Qxd2+ 29. Bxd2 Bc5 30. Kf1 Kf8 31. Ke2 Ke7 32. Kd3 b5 33. Bc3 a6 34. g4 f5 35. Be5 Kd7 36. Kc3 Kc6 37. Kd3 Kd5 38. Bc3 e5 39. Bb2 b4 40. Bc1 e4+ 41. fxe4+ fxe4+ 42. Ke2 Kc4 43. Bd2 a5 0-1

[Event "Joao Pessoa op 6th"]
[Site "Joao Pessoa"]
[Date "2015.10.12"]
[Round "5"]
[White "Rocha, Vitor Firmo de Souz"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1-0"]
[ECO "B96"]
[WhiteElo "2133"]
[BlackElo "1952"]
[PlyCount "71"]
[EventDate "2015.10.10"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Qe2 e6 8. 0-0-0 Qc7 9. f4 Be7 10. Kb1 b5 11. f5 Ne5 12. Qe1 Bd7 13. Bd3 0-0 14. h3 b4 15. Nce2 a5 16. g4 Rfb8 17. Bc1 d5 18. Ng3 Bd6 19. exd5 exd5 20. Nge2 a4 21. g5 Ne8 22. Nf4 b3 23. cxb3 Bc5 24. Nxd5 Qd6 25. Be4 axb3 26. Nxb3 Qf8 27. Qc3 Bd6 28. Nb6 Ra7 29. Nxd7 Nxd7 30. Be3 Be5 31. Bd4 Qe7 32. Rhe1 Bxd4 33. Qxd4 Rc7 34. f6 Qf8 35. Bf5 Nb6 36. Qf4 1-0

[Event "Joao Pessoa op 6th"]
[Site "Joao Pessoa"]
[Date "2015.10.11"]
[Round "2"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Rodrigues da Silva, Evandro"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "1952"]
[BlackElo "2196"]
[PlyCount "147"]
[EventDate "2015.10.10"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 a6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 g6 8. Be2 Bg7 9. 0-0 0-0 10. h3 b5 11. Rc1 Bb7 12. Nd2 Na5 13. Na4 Nc4 14. Nc5 Bc8 15. b3 Nd6 16. Qc2 Ra7 17. Bf3 Bf5 18. Qb2 Qb6 19. Be5 Be6 20. Rfd1 Rc8 21. Nf1 Rac7 22. Ng3 Rc6 23. Ne2 Nb7 24. Nf4 Bh6 25. Nfd3 a5 26. b4 a4 27. Nxb7 Qxb7 28. Nc5 Qb6 29. a3 Ne8 30. Qa2 Qd8 31. Be2 Qb6 32. Bf3 Qd8 33. Qe2 Nd6 34. Bxd6 Qxd6 35. Qxb5 f5 36. Nb7 Qd7 37. Rxc6 Qxc6 38. Qxc6 Rxc6 39. Nd8 Rc3 40. Nxe6 Rxa3 41. Bxd5 Kf7 42. Nc5+ Kf6 43. b5 e5 44. b6 exd4 45. exd4 Bf4 46. b7 Ke7 47. Rb1 Bb8 48. Na6 Ba7 49. b8Q Bxb8 50. Nxb8 Rd3 51. Rb6 a3 52. Ra6 Kf8 53. Nc6 Kg7 54. Bc4 Rd1+ 55. Kh2 Rc1 56. d5 Rxc4 57. d6 a2 58. d7 Rxc6 59. Ra7 a1Q 60. Rxa1 Rd6 61. Ra7 Kf6 62. Ra6 Rxa6 63. d8Q+ Kg7 64. Qc8 Rf6 65. f4 Rf7 66. Qe6 h5 67. Kg3 Rb7 68. Kh4 Kh6 69. g4 hxg4 70. hxg4 fxg4 71. f5 Rg7 72. f6 Rb7 73. Qg8 Rh7 74. Qf8+ 1-0

[Event "Joao Pessoa op 6th"]
[Site "Joao Pessoa"]
[Date "2015.10.11"]
[Round "3"]
[White "De Souza, Rondinelle Pessoa"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "2112"]
[BlackElo "1952"]
[PlyCount "85"]
[EventDate "2015.10.10"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. e4 Nf6 4. Bb5 Bc5 5. Nc3 0-0 6. Nf3 d5 7. exd5 Nxd5 8. 0-0 Bg4 9. Be2 Re8 10. h3 Bf5 11. Na4 Bf8 12. d4 e4 13. Ne5 Nxe5 14. dxe5 Nf4 15. Kh2 Qh4 16. Bg4 Bxg4 17. Qxg4 Qxg4 18. hxg4 Ng6 19. Rfe1 Nxe5 20. Rxe4 Bd6 21. Kg1 f6 22. Rae1 Kf7 23. c4 Nxg4 24. g3 Ne5 25. R1e3 Nf3+ 26. Kg2 Ng5 27. Rxe8 Rxe8 28. Rd3 Ne6 29. Rd5 Be7 30. Rd2 Rd8 31. Re2 Rd3 32. Kf1 h5 33. Kg2 h4 34. Nc3 h3+ 35. Kh2 g5 36. Nd5 g4 37. Rxe6 Rd2 38. Rxe7+ Kf8 39. Ba3 Rxf2+ 40. Kg1 Rg2+ 41. Kh1 Rxa2 42. Bb4 Ra1+ 43. Re1+ 1-0

[Event "Joao Pessoa op 6th"]
[Site "Joao Pessoa"]
[Date "2015.10.10"]
[Round "1"]
[White "De Oliveira, Jefferson Pereira"]
[Black "De Melo Braga, Pamella Vittoria"]
[Result "1-0"]
[ECO "D64"]
[WhiteElo "1952"]
[BlackElo "1604"]
[PlyCount "57"]
[EventDate "2015.10.10"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bg5 Nbd7 6. e3 0-0 7. Rc1 Re8 8. Qc2 c6 9. Bd3 h6 10. Bh4 c5 11. 0-0 cxd4 12. Nxd4 Nc5 13. Be2 Nfe4 14. Bxe7 Qxe7 15. Nxe4 Nxe4 16. c5 Bd7 17. Bd3 Nf6 18. b4 a6 19. Qb3 Rec8 20. Rc3 Rc7 21. Rfc1 Rac8 22. h3 e5 23. Nf5 Bxf5 24. Bxf5 Rd8 25. Bd3 e4 26. Be2 Rdc8 27. a4 Qd7 28. b5 Rxc5 29. Rxc5 1-0

[Event "Joao Pessoa AXCV op 5th"]
[Site "Joao Pessoa"]
[Date "2015.07.26"]
[Round "5"]
[White "Araujo, Sergio Murilo"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "2083"]
[BlackElo "1953"]
[PlyCount "75"]
[EventDate "2015.07.24"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 b6 5. Bg2 Rb8 6. 0-0 Be7 7. e3 0-0 8. d4 exd4 9. exd4 d5 10. cxd5 Nb4 11. Ne5 Bb7 12. Nc6 Nxc6 13. dxc6 Ba6 14. Re1 Bd6 15. a3 h6 16. Be3 Re8 17. Qd2 Bc4 18. h3 a5 19. Qc2 Ba6 20. Rad1 Re6 21. d5 Re7 22. Qd2 Qf8 23. Bd4 Nh7 24. Rxe7 Qxe7 25. Ne4 Be5 26. Qc3 Bxd4 27. Qxd4 Nf8 28. d6 cxd6 29. Nxd6 Ne6 30. Nf5 Qg5 31. Qe5 Rd8 32. Rxd8+ Qxd8 33. Bd5 Qc7 34. Nd6 Bc8 35. f4 Nd8 36. Nxc8 Qxc8 37. Qe8+ Kh7 38. Bxf7 1-0

[Event "Joao Pessoa AXCV op 5th"]
[Site "Joao Pessoa"]
[Date "2015.07.26"]
[Round "4"]
[White "Melo, Fernando Antonio Al"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "0-1"]
[ECO "A03"]
[WhiteElo "1828"]
[BlackElo "1953"]
[PlyCount "132"]
[EventDate "2015.07.24"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 Nf6 3. e3 g6 4. Be2 Bg7 5. 0-0 0-0 6. d4 Nbd7 7. c3 Ne4 8. Nbd2 Ndf6 9. Nxe4 Nxe4 10. Bd3 Nd6 11. Qb3 c6 12. Bd2 Qb6 13. Qxb6 axb6 14. h3 b5 15. Rfe1 Bf5 16. Bxf5 gxf5 17. Re2 Ra6 18. Ne1 Rfa8 19. a3 Bf6 20. Nd3 h5 21. Be1 e6 22. Nc5 R6a7 23. Nd7 Be7 24. Nc5 Kg7 25. g4 hxg4 26. hxg4 Rh8 27. g5 Nc4 28. Nd3 Bd6 29. Bd2 Raa8 30. Bc1 Rag8 31. Rh2 Kg6 32. Rxh8 Rxh8 33. b3 Nb6 34. Ra2 Nd7 35. Rh2 Rxh2 36. Kxh2 f6 37. Kh3 fxg5 38. fxg5 e5 39. dxe5 Bxe5 40. Bd2 Bd6 41. b4 Kxg5 42. e4+ f4 43. exd5 cxd5 44. Kg2 Kg4 45. Nf2+ Kf5 46. Nh3 Nf6 47. Kf3 Nh5 48. Bc1 Bc7 49. Bd2 Be5 50. Be1 Ng7 51. Nf2 Ne6 52. Nd3 Ng5+ 53. Kg2 Bd6 54. Bd2 f3+ 55. Kf1 Ne4 56. Be1 Kg4 57. Nf2+ Kf4 58. Nh3+ Ke3 59. Bf2+ Kd3 60. Ng1 Nd2+ 61. Ke1 Be5 62. Bd4 Bxd4 63. cxd4 Ke3 64. Nh3 Ne4 65. Kf1 f2 66. Kg2 b6 0-1

[Event "Joao Pessoa AXCV op 5th"]
[Site "Joao Pessoa"]
[Date "2015.07.25"]
[Round "2"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Lemos, Doriedson"]
[Result "1/2-1/2"]
[ECO "D03"]
[WhiteElo "1953"]
[BlackElo "2097"]
[PlyCount "88"]
[EventDate "2015.07.24"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 4. e3 d5 5. Nbd2 Nc6 6. c3 cxd4 7. exd4 Bd6 8. Bd3 a6 9. a4 0-0 10. 0-0 Re8 11. Re1 Ne7 12. Ne5 Ng6 13. Qf3 Be7 14. h4 Nxe5 15. dxe5 Nd7 16. Qg3 f5 17. Nf3 Nc5 18. Bc2 Ne4 19. Bxe4 dxe4 20. Nd4 Qc7 21. f4 Bc5 22. Rad1 Kh8 23. h5 Qf7 24. h6 g6 25. b4 Bxd4+ 26. cxd4 Bd7 27. d5 exd5 28. Qc3 Be6 29. Rxd5 Rac8 30. Rc5 Qd7 31. b5 Rxc5 32. Qxc5 Rc8 33. Qa7 axb5 34. axb5 Qxb5 35. Rd1 Qe2 36. Qd4 Kg8 37. Qd6 Qc4 38. Rd4 Qc6 39. Qe7 Bf7 40. Rd7 Rf8 41. Rxb7 e3 42. Qb4 Qc1+ 43. Kh2 Qd1 44. e6 Qh5+ 1/2-1/2

[Event "Joao Pessoa AXCV op 5th"]
[Site "Joao Pessoa"]
[Date "2015.07.25"]
[Round "3"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Oliveira, Renato de Araujo"]
[Result "0-1"]
[ECO "D73"]
[WhiteElo "1953"]
[BlackElo "2085"]
[PlyCount "74"]
[EventDate "2015.07.24"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 d5 5. 0-0 0-0 6. Nbd2 c5 7. c3 cxd4 8. cxd4 Nc6 9. Nb3 Ne4 10. Be3 e6 11. Rc1 Qe7 12. a3 Bd7 13. Qd3 Rfc8 14. Rc2 Nd6 15. Nc5 Be8 16. b3 b6 17. Na4 Na5 18. Nc3 Nxb3 19. Nxd5 exd5 20. Qxb3 Rxc2 21. Qxc2 Rc8 22. Qa2 Nc4 23. Bc1 Bf8 24. Re1 Nxa3 25. Qxd5 Nc2 26. Bg5 Qd7 27. Qxd7 Bxd7 28. Rc1 a5 29. Ne5 Nxd4 30. Rb1 Nxe2+ 31. Kf1 Nc3 32. Rxb6 Bb5+ 33. Ke1 Bb4 34. Bd2 Rd8 35. Bf3 Re8 36. Bxc3 Bxc3+ 37. Kd1 Rxe5 0-1

[Event "Joao Pessoa AXCV op 5th"]
[Site "Joao Pessoa"]
[Date "2015.07.24"]
[Round "1"]
[White "Born, Ary"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1469"]
[BlackElo "1953"]
[PlyCount "56"]
[EventDate "2015.07.24"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. Nf3 dxe4 4. Qa4+ Bd7 5. Qxe4 Nf6 6. Qxb7 Nc6 7. Qb3 Rb8 8. Qc2 e5 9. Bc4 Be7 10. 0-0 0-0 11. a3 a5 12. Re1 Qc7 13. d3 h6 14. h4 Bf5 15. Qe2 Bg4 16. a4 Bd6 17. g3 e4 18. dxe4 Bxg3 19. Be3 Ne5 20. Nbd2 Rxb2 21. Kg2 Bxf3+ 22. Kxg3 Bxe2 23. Bxe2 Rxd2 24. Bxd2 Nxe4+ 25. Kg2 Nxd2 26. Rad1 Qc6+ 27. f3 Ndc4 28. Rf1 Ne3+ 0-1

[Event "Paraiban-ch op"]
[Site "Cabo Branco"]
[Date "2015.06.07"]
[Round "5"]
[White "De Oliveira, Jefferson Pereira"]
[Black "De Moura, George Nunes"]
[Result "1-0"]
[ECO "D13"]
[WhiteElo "1940"]
[BlackElo "1818"]
[PlyCount "59"]
[EventDate "2015.06.04"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 167 Extra"]
[Source "ChessBase"]
[SourceDate "2015.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2015.09.14"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 c6 4. Nc3 Bf5 5. cxd5 cxd5 6. Qb3 Bc8 7. Bg5 e6 8. e3 a6 9. Bd3 h6 10. Bh4 Be7 11. 0-0 0-0 12. Ne5 Nbd7 13. f4 Nxe5 14. fxe5 Nd7 15. Bxe7 Qxe7 16. Rf3 f6 17. exf6 Nxf6 18. Raf1 b5 19. Ne2 e5 20. e4 Be6 21. Qc2 Rac8 22. Qb1 dxe4 23. Bxe4 Bg4 24. R3f2 exd4 25. Bd3 Qe3 26. Kh1 Rc7 27. Nf4 Rfc8 28. a4 Qxf2 29. Qa2+ Kh8 30. Ng6+ 1-0

[Event "Paraiban-ch op"]
[Site "Cabo Branco"]
[Date "2015.06.06"]
[Round "3"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Torres, Douglas da Silva"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "1940"]
[BlackElo "2133"]
[PlyCount "96"]
[EventDate "2015.06.04"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 167 Extra"]
[Source "ChessBase"]
[SourceDate "2015.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2015.09.14"]
[SourceQuality "1"]

1. d4 g6 2. g3 Bg7 3. Bg2 d6 4. Nf3 Nd7 5. 0-0 e6 6. Nbd2 Ne7 7. e4 0-0 8. Qe2 c5 9. dxc5 Nxc5 10. Rd1 b6 11. Rb1 Ba6 12. c4 d5 13. b3 dxc4 14. bxc4 Na4 15. Rb3 Qc7 16. Re1 Nc6 17. Ba3 Nc5 18. Rbb1 Rfd8 19. e5 Bf8 20. Nf1 Rac8 21. h4 Nd3 22. Bxf8 Kxf8 23. Qe3 Kg7 24. Red1 Ndxe5 25. c5 Nxf3+ 26. Bxf3 Rxd1 27. Rxd1 bxc5 28. Qxc5 Ne5 29. Qd4 Qc3 30. Bg2 Qxd4 31. Rxd4 Rc1 32. Ra4 Be2 33. Re4 Nf3+ 34. Kh1 Bxf1 35. Bxf1 Nd2 36. Ra4 Nxf1 37. Kg2 Nd2 38. Rxa7 Ra1 39. Ra4 Nb1 40. Kf3 h5 41. Ke3 Nc3 42. Ra3 Nxa2 43. Kd2 Kf6 44. Ra4 Rd1+ 45. Kc2 Rf1 46. Rf4+ Ke7 47. Kb3 Nc1+ 48. Kc2 Ne2 0-1

[Event "Paraiban-ch op"]
[Site "Cabo Branco"]
[Date "2015.06.06"]
[Round "4"]
[White "Ferreira, Alexander da Silva"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "0-1"]
[ECO "B84"]
[WhiteElo "1607"]
[BlackElo "1940"]
[PlyCount "80"]
[EventDate "2015.06.04"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 167 Extra"]
[Source "ChessBase"]
[SourceDate "2015.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2015.09.14"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. Be2 Be7 8. 0-0 0-0 9. Qd2 Qc7 10. f4 b5 11. a3 Bb7 12. Bf3 Rd8 13. Qe2 Nc6 14. Rad1 Na5 15. Kh1 Nc4 16. Bc1 Nxa3 17. e5 Bxf3 18. Qxf3 b4 19. exf6 Bxf6 20. bxa3 bxc3 21. Ne2 Qa5 22. Rd3 Rac8 23. Qe3 Rc6 24. Nd4 Rc7 25. Nb3 Qb5 26. Rf3 a5 27. Qe1 Rc4 28. Qd1 d5 29. g4 g6 30. g5 Bg7 31. h4 a4 32. Nd4 Qc5 33. Ne2 Rb8 34. Qe1 Rb1 35. Kg2 Re4 36. Kf1 e5 37. Rxc3 Qb5 38. Rc8+ Bf8 39. Rxf8+ Kxf8 40. Qb4+ Rexb4 0-1

[Event "Paraiban-ch op"]
[Site "Cabo Branco"]
[Date "2015.06.04"]
[Round "2"]
[White "Brito, Luismar Jorge"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1/2-1/2"]
[ECO "B19"]
[WhiteElo "2246"]
[BlackElo "1940"]
[PlyCount "96"]
[EventDate "2015.06.04"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 167 Extra"]
[Source "ChessBase"]
[SourceDate "2015.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2015.09.14"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. h4 h6 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Ngf6 11. Bd2 e6 12. Ne4 Be7 13. 0-0-0 Qc7 14. g3 Nxe4 15. Qxe4 Nf6 16. Qe2 0-0-0 17. Kb1 Rhe8 18. c4 c5 19. Bc3 Bd6 20. dxc5 Bxc5 21. Ne5 Rxd1+ 22. Rxd1 Rd8 23. Rxd8+ Kxd8 24. f4 Ne8 25. a3 a6 26. g4 f6 27. Nd3 Bd6 28. Qxe6 Bxf4 29. Nxf4 Qxf4 30. Ba5+ Nc7 31. Qg8+ Kd7 32. Qxg7+ Kc8 33. Qg8+ Kd7 34. Qh7+ Kc8 35. Qg8+ Kd7 36. Ka2 Ne6 37. Qf7+ Kd6 38. Bb4+ Ke5 39. Bc3+ Kd6 40. c5+ Nxc5 41. Bxf6 Qxg4 42. Be7+ Kc6 43. Qg6+ Qe6+ 44. b3 Kd5 45. Bxc5 Qe2+ 46. Kb1 Qd1+ 47. Kb2 Qd2+ 48. Kb1 Qd1+ 1/2-1/2

[Event "Paraiban-ch op"]
[Site "Cabo Branco"]
[Date "2015.06.04"]
[Round "1"]
[White "De Oliveira, Jefferson Pereira"]
[Black "De Lima, Claudionor Henrique"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1940"]
[BlackElo "1560"]
[PlyCount "56"]
[EventDate "2015.06.04"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 167 Extra"]
[Source "ChessBase"]
[SourceDate "2015.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2015.09.14"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 Bf5 5. Bf4 e6 6. e3 Ne4 7. Be2 Bd6 8. Bxd6 Qxd6 9. Qb3 b6 10. cxd5 exd5 11. 0-0 Nd7 12. Rac1 g5 13. Nxe4 Bxe4 14. Nxg5 Qg6 15. Nxe4 dxe4 16. f4 Rg8 17. Rf2 h5 18. Qa4 b5 19. Qa6 Qd6 20. Rxc6 Qb4 21. Qxb5 Qe1+ 22. Rf1 Qd2 23. Rc7 Qxe3+ 24. Kh1 Rd8 25. Qxh5 Qxd4 26. Bg4 Qxb2 27. Rg1 Qd4 28. Rxd7 Rxd7 1-0

[Event "Recife Arraes Memorial 8th"]
[Site "Recife"]
[Date "2015.05.03"]
[Round "5"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Brito, Luismar Jorge"]
[Result "0-1"]
[ECO "A43"]
[WhiteElo "1926"]
[BlackElo "2224"]
[PlyCount "140"]
[EventDate "2015.05.01"]
[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 c5 2. d5 g6 3. e4 d6 4. Nf3 Bg7 5. Bb5+ Nd7 6. 0-0 a6 7. Bxd7+ Bxd7 8. Re1 Bg4 9. Nbd2 Nf6 10. h3 Bxf3 11. Nxf3 Nd7 12. a4 b5 13. Bf4 Bxb2 14. e5 dxe5 15. Nxe5 Nxe5 16. Bxe5 Bxe5 17. Rxe5 Qd6 18. Qe2 0-0 19. axb5 axb5 20. Rd1 Ra7 21. f4 b4 22. Qe4 Rfa8 23. Rd2 Ra1+ 24. Kh2 Rf1 25. Rxe7 Rxf4 26. Qe5 Qxe5 27. Rxe5 Rd8 28. d6 c4 29. Kg3 Rf6 30. d7 Kf8 31. Rb5 b3 32. cxb3 c3 33. Rc2 Rc6 34. Rd5 Ke7 35. Rd3 Rxd7 36. Rcxc3 Rxc3 37. Rxc3 Rb7 38. Rd3 Ke6 39. Kf4 f5 40. g3 h6 41. Ke3 Ke5 42. h4 g5 43. hxg5 hxg5 44. Kf3 Rb4 45. Ke3 Re4+ 46. Kf3 Re1 47. Rd8 g4+ 48. Kf2 Rb1 49. Re8+ Kd6 50. Rb8 Ke5 51. Re8+ Kf6 52. Rb8 Rb2+ 53. Kf1 Ke5 54. Rb4 Rd2 55. Kg1 Rd3 56. Kf2 Rf3+ 57. Kg2 Rc3 58. Kf2 Rf3+ 59. Kg2 Kd5 60. Rb8 Kd4 61. b4 Rb3 62. b5 Rb2+ 63. Kf1 Ke3 64. Ra8 Rxb5 65. Kg2 Rb2+ 66. Kf1 Rb5 67. Ra3+ Ke4 68. Kf2 Rb2+ 69. Kf1 Rd2 70. Kg1 Rd3 0-1

[Event "Recife Arraes Memorial 8th"]
[Site "Recife"]
[Date "2015.05.03"]
[Round "6"]
[White "Lemos, Doriedson"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2086"]
[BlackElo "1926"]
[PlyCount "71"]
[EventDate "2015.05.01"]
[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 c6 3. Nf3 d5 4. e3 Bg4 5. Qb3 Qb6 6. Nc3 e6 7. c5 Qc7 8. Bd2 Nbd7 9. Rc1 Be7 10. Be2 0-0 11. h3 Bxf3 12. Bxf3 e5 13. 0-0 e4 14. Be2 Ne8 15. f4 f5 16. g4 Kh8 17. Be1 g6 18. Bg3 Ng7 19. Kg2 Nf6 20. Rh1 Qd7 21. g5 Nfh5 22. Na4 Rab8 23. Qc3 Qc7 24. h4 Kg8 25. b4 Rfc8 26. Qb3 Kf7 27. b5 Qd7 28. Nc3 Bd8 29. Qa4 Bc7 30. Bh2 Ra8 31. bxc6 bxc6 32. Ba6 Rcb8 33. Rb1 Bd8 34. Rb4 Rxb4 35. Qxb4 Qc7 36. Rb1 1-0

[Event "Recife Arraes Memorial 8th"]
[Site "Recife"]
[Date "2015.05.02"]
[Round "4"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Hiramine, Rodrigo Yoshio Ferr"]
[Result "1-0"]
[ECO "D44"]
[WhiteElo "1926"]
[BlackElo "1987"]
[PlyCount "43"]
[EventDate "2015.05.01"]
[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 d5 2. c4 c6 3. Nc3 e6 4. Nf3 Nf6 5. Bg5 dxc4 6. a4 Bb4 7. e4 Bxc3+ 8. bxc3 Qa5 9. Bxf6 Qxc3+ 10. Nd2 gxf6 11. Bxc4 Qxd4 12. 0-0 Nd7 13. Qc2 Ne5 14. Be2 Rg8 15. Ra3 Bd7 16. a5 Qd6 17. Rb3 0-0-0 18. Rfb1 Kb8 19. Rxb7+ Ka8 20. Qb2 Rb8 21. Ba6 Qxd2 22. Rxb8+ 1-0

[Event "Recife Arraes Memorial 8th"]
[Site "Recife"]
[Date "2015.05.01"]
[Round "1"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Fernandes, Pedro Guilherme Mun"]
[Result "1-0"]
[ECO "D07"]
[WhiteElo "1926"]
[PlyCount "55"]
[EventDate "2015.05.01"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Nc6 5. Bg5 g6 6. e3 Bg7 7. Qb3 Ne7 8. Be2 0-0 9. 0-0 b6 10. Ne5 Bb7 11. Rac1 Nd7 12. Nxd7 Qxd7 13. Bxe7 Qxe7 14. cxd5 exd5 15. Nxd5 Qe4 16. Bf3 Qe6 17. Nf6+ Qxf6 18. Bxb7 Rae8 19. Rxc7 Re7 20. Rfc1 Rfe8 21. Bd5 Qf5 22. h3 Rxc7 23. Rxc7 Rd8 24. e4 Qf4 25. Rxf7 Qh6 26. Rd7+ Kh8 27. Rxd8+ Bf8 28. Qb4 1-0

[Event "Recife Arraes Memorial 8th"]
[Site "Recife"]
[Date "2015.05.01"]
[Round "2"]
[White "Silva, Cristiano Guilherme"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "2090"]
[BlackElo "1926"]
[PlyCount "45"]
[EventDate "2015.05.01"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nf6 5. c3 Nc6 6. Bf4 Bg4 7. Ne2 e6 8. 0-0 Bd6 9. f3 Bh5 10. Qd2 0-0 11. Ng3 Bg6 12. Bxg6 hxg6 13. Bxd6 Qxd6 14. Na3 Rac8 15. Ne2 a6 16. Nf4 b5 17. Nd3 Nd7 18. Qf4 Qxf4 19. Nxf4 b4 20. Nc2 bxc3 21. bxc3 Na5 22. Ne2 Nb6 23. Nb4 1/2-1/2

[Event "Joao Pessoa op 6th"]
[Site "Joao Pessoa"]
[Date "2015.03.14"]
[Round "3"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Teixeira, Alexandre Cesar Fer"]
[Result "1-0"]
[ECO "A49"]
[WhiteElo "1923"]
[BlackElo "1513"]
[PlyCount "85"]
[EventDate "2015.03.13"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 165 Extra"]
[Source "ChessBase"]
[SourceDate "2015.04.21"]
[SourceVersion "1"]
[SourceVersionDate "2015.04.21"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. Re1 c6 7. e4 Bg4 8. Nbd2 d5 9. e5 Nfd7 10. h3 Bxf3 11. Nxf3 c5 12. c3 cxd4 13. cxd4 e6 14. b3 f6 15. exf6 Qxf6 16. Bb2 Nc6 17. Qd2 Rae8 18. Re2 Qe7 19. Rae1 Nd8 20. Qa5 a6 21. Ba3 Qf6 22. Bxf8 Bxf8 23. Qc7 Qf7 24. Ng5 Qg7 25. Bxd5 Nf6 26. Qxg7+ Bxg7 27. Nxe6 Nxd5 28. Nxd8 Rxd8 29. Re8+ Rxe8 30. Rxe8+ Kf7 31. Rd8 Ke6 32. Rb8 b6 33. Rb7 Bxd4 34. Rxh7 Nf6 35. Rh4 Bc5 36. Kg2 g5 37. Rc4 Nd7 38. f4 Kd5 39. Kf3 Bd6 40. Rc8 Ke6 41. h4 gxf4 42. g4 Be7 43. Rc6+ 1-0

[Event "Joao Pessoa op 6th"]
[Site "Joao Pessoa"]
[Date "2015.03.13"]
[Round "1"]
[White "Freitas Capiberibe, Andre Antoni"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1-0"]
[ECO "B55"]
[BlackElo "1923"]
[PlyCount "17"]
[EventDate "2015.03.13"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 165 Extra"]
[Source "ChessBase"]
[SourceDate "2015.04.21"]
[SourceVersion "1"]
[SourceVersionDate "2015.04.21"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. g3 e5 6. Bb5+ Nbd7 7. Nf5 Qc7 8. Bg5 h6 9. Bxf6 1-0

[Event "Paraibano-ch"]
[Site "Joao Pessoa"]
[Date "2014.11.30"]
[Round "5"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Cavalcanti, Francisco de Assis"]
[Result "0-1"]
[ECO "B41"]
[WhiteElo "1935"]
[BlackElo "2196"]
[PlyCount "98"]
[EventDate "2014.11.28"]
[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. c4 e6 3. Nc3 c5 4. Nf3 a6 5. e4 cxd4 6. Nxd4 Bb4 7. Qc2 Qb6 8. Nb3 0-0 9. Be3 Qc7 10. Be2 Be7 11. 0-0 d6 12. Rac1 Nbd7 13. Rfd1 b6 14. f3 Bb7 15. Qd2 Rac8 16. Bf4 Ne5 17. Bf1 Qb8 18. Nb1 Rfe8 19. Qf2 Bc6 20. Nd4 Bd7 21. Be3 b5 22. cxb5 axb5 23. Na3 b4 24. Nc4 d5 25. exd5 Nxd5 26. Nf5 Bf8 27. Ba7 Qc7 28. Ng3 Ng6 29. b3 Nc3 30. Rd2 Bc6 31. Bc5 Nd5 32. Bxf8 Rxf8 33. Qd4 Rfd8 34. Qf2 Qb8 35. Ne4 Be8 36. Nc5 Qa7 37. Ne3 Qb8 38. Nc4 Qa7 39. Ne4 Qe7 40. Rd4 f5 41. Ng3 h5 42. Re1 Qg5 43. Rxe6 Ngf4 44. Re5 h4 45. Nxf5 Nh3+ 46. Kh1 Nxf2+ 47. Kg1 Nh3+ 48. Kh1 Qc1 49. Ng3 hxg3 0-1

[Event "Paraibano-ch"]
[Site "Joao Pessoa"]
[Date "2014.11.29"]
[Round "3"]
[White "Dantas, Francisco"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1/2-1/2"]
[ECO "D46"]
[WhiteElo "1973"]
[BlackElo "1935"]
[PlyCount "52"]
[EventDate "2014.11.28"]
[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. c4 e6 3. Nf3 d5 4. Nc3 c6 5. e3 Bd6 6. Bd3 Nbd7 7. 0-0 0-0 8. b3 dxc4 9. bxc4 e5 10. Qc2 Re8 11. Rd1 Qe7 12. Bf5 h6 13. Bb2 Bc7 14. Nd2 exd4 15. exd4 Qd6 16. Nf3 Nf8 17. Bxc8 Raxc8 18. Re1 Ng6 19. g3 Qd7 20. Kg2 Qg4 21. Bc1 Nh5 22. Re4 Rxe4 23. Qxe4 Nhf4+ 24. Bxf4 Nxf4+ 25. Kg1 Nh3+ 26. Kg2 Nf4+ 1/2-1/2

[Event "Paraibano-ch"]
[Site "Joao Pessoa"]
[Date "2014.11.29"]
[Round "2"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Brito, Luismar Jorge"]
[Result "1/2-1/2"]
[ECO "D52"]
[WhiteElo "1935"]
[BlackElo "2269"]
[PlyCount "57"]
[EventDate "2014.11.28"]
[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 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bh4 Nbd7 7. e3 Qa5 8. Nd2 Bb4 9. Qc2 Ne4 10. Ndxe4 dxe4 11. Be2 0-0 12. 0-0 f5 13. f3 exf3 14. Bxf3 e5 15. Be2 Nf6 16. h3 Be6 17. g4 exd4 18. exd4 Bxc3 19. bxc3 Ne4 20. gxf5 Bxf5 21. Bd3 Nd6 22. c5 Bxd3 23. Qxd3 Nf7 24. Be7 Rfe8 25. Rae1 Qc7 26. Rxf7 Kxf7 27. Qc4+ Kg6 28. Qd3+ Kf7 29. Qc4+ 1/2-1/2

[Event "Paraibano-ch"]
[Site "Joao Pessoa"]
[Date "2014.11.28"]
[Round "1"]
[White "Barros, Ubirajara Barbosa"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1553"]
[BlackElo "1935"]
[PlyCount "57"]
[EventDate "2014.11.28"]
[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 d5 4. Nf3 Nf6 5. 0-0 0-0 6. b3 Nc6 7. Bb2 a6 8. c4 b5 9. cxd5 Nxd5 10. Nbd2 f5 11. Rc1 Bb7 12. Ng5 Qd6 13. e4 fxe4 14. Ndxe4 Qb4 15. Nc5 Nxd4 16. Bxd4 Bxd4 17. Nxb7 Nc3 18. Qe1 e5 19. Ne4 Nxa2 20. Rxc7 Qxb3 21. Nbc5 Qb2 22. Ne6 Rf7 23. Rxf7 Kxf7 24. N4g5+ Kf6 25. Bxa8 Bc3 26. Qe3 h6 27. Qf3+ Ke7 28. Qf7+ Kd6 29. Qc7# 0-1

[Event "Joao Pessoa-ch"]
[Site "Joao Pessoa"]
[Date "2014.08.03"]
[Round "5"]
[White "Cilento, Lucas Geraldo"]
[Black "De Oliveira, Jefferson Pereira"]
[Result "1-0"]
[ECO "B19"]
[WhiteElo "1862"]
[BlackElo "1985"]
[PlyCount "75"]
[EventDate "2014.08.01"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 161 Extra"]
[Source "ChessBase"]
[SourceDate "2014.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2014.08.29"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. h5 Bh7 8. Nf3 Nf6 9. Bd3 Bxd3 10. Qxd3 e6 11. Bf4 Bd6 12. Be5 0-0 13. 0-0-0 Bxe5 14. Nxe5 Nbd7 15. Ne4 Nxe5 16. dxe5 Nxe4 17. Qxe4 Qe7 18. g4 Qg5+ 19. Kb1 Rad8 20. Rd3 Rxd3 21. cxd3 Qd2 22. Qe3 Qxe3 23. fxe3 Rd8 24. Kc2 Rd5 25. d4 Kf8 26. Kd3 c5 27. Rc1 cxd4 28. exd4 g6 29. Rc8+ Kg7 30. Rc7 Rb5 31. b3 Rb6 32. Ke2 Ra6 33. a4 Rb6 34. Rc3 Rc6 35. Rf3 Rc7 36. Rd3 f5 37. gxf5 exf5 38. hxg6 1-0

[Event "Joao Pessoa-ch"]
[Site "Joao Pessoa"]
[Date "2014.08.03"]
[Round "6"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Dutra, Liliam Guedes"]
[Result "1-0"]
[ECO "E21"]
[WhiteElo "1985"]
[BlackElo "1581"]
[PlyCount "89"]
[EventDate "2014.08.01"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 161 Extra"]
[Source "ChessBase"]
[SourceDate "2014.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2014.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 0-0 5. Bg5 b6 6. g3 Bb7 7. Bg2 h6 8. Bd2 Bxc3 9. Bxc3 d6 10. 0-0 Nbd7 11. b3 a5 12. Nd2 Bxg2 13. Kxg2 d5 14. Qc2 Re8 15. e4 dxe4 16. Nxe4 Ra7 17. Rae1 Qa8 18. f3 Nh5 19. Kg1 f5 20. Nd2 Qd8 21. Rf2 Qg5 22. Nf1 Raa8 23. Qb2 Nf4 24. Rd2 Nf6 25. Kh1 N4h5 26. Rde2 Qg6 27. Rxe6 Rxe6 28. Rxe6 Re8 29. Qe2 Qf7 30. Rxe8+ Nxe8 31. Kg2 Nd6 32. d5 g5 33. Qe5 Ng7 34. Ne3 h5 35. Nc2 f4 36. Nd4 fxg3 37. Qxg5 gxh2 38. Kxh2 Kf8 39. Qh6 Kg8 40. Ne6 Ndf5 41. Qg5 Kh7 42. Nxg7 Nxg7 43. Bxg7 Qxg7 44. Qxh5+ Kg8 45. Qg4 1-0

[Event "Joao Pessoa-ch"]
[Site "Joao Pessoa"]
[Date "2014.08.02"]
[Round "4"]
[White "De Oliveira, Jefferson Pereira"]
[Black "Reis, Paulo F Jatoba"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1985"]
[BlackElo "2398"]
[PlyCount "88"]
[EventDate "2014.08.01"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 161 Extra"]
[Source "ChessBase"]
[SourceDate "2014.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2014.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. Nbd2 Nc6 7. e4 Bg4 8. c3 Qc8 9. Re1 e5 10. d5 Nb8 11. Nf1 a5 12. Qc2 Bh3 13. Bh1 h6 14. Bd2 c6 15. dxc6 Qxc6 16. Rad1 Nbd7 17. Bc1 Nc5 18. N3d2 Bg4 19. f3 Be6 20. b3 a4 21. Ne3 axb3 22. axb3 Rfc8 23. Bg2 Bf8 24. Bf1 Ncd7 25. c4 b5 26. Bd3 h5 27. cxb5 Qb6 28. Qb1 d5 29. exd5 Nxd5 30. Ndc4 Rxc4 31. bxc4 Nc3 32. Qb3 Nxd1 33. Qxd1 Ra1 34. Kg2 Bb4 35. Rf1 Nc5 36. Qc2 Qa7 37. Bb2 Ra2 38. Rb1 Ba3 39. Nd1 Nxd3 40. Qxd3 Bf5 41. Qd8+ Kg7 42. Kh1 Bxb2 43. Rxb2 Rxb2 44. Nxb2 Qf2 0-1

