[Event "Natal Potiguar op"]
[Site "Natal"]
[Date "2017.06.04"]
[Round "6"]
[White "De Lima, Enzo Magalhaes"]
[Black "Severiano Sobrinho, Valmar da Silva"]
[Result "1-0"]
[ECO "D13"]
[WhiteElo "1420"]
[BlackElo "1623"]
[PlyCount "31"]
[EventDate "2017.06.02"]
[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 Nf6 4. cxd5 cxd5 5. Bf4 Bf5 6. e3 Nc6 7. Nf3 a6 8. Be2 Ne4 9. Qb3 b5 10. Qxd5 Qxd5 11. Nxd5 Ra7 12. Rc1 e6 13. Nb6 Bb4+ 14. Kf1 Ne7 15. Nc8 0-0 16. Nxa7 1-0

[Event "Natal Potiguar op"]
[Site "Natal"]
[Date "2017.06.04"]
[Round "5"]
[White "Severiano Sobrinho, Valmar da Silva"]
[Black "Baltar, Petrov Ferreira"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1623"]
[BlackElo "1689"]
[PlyCount "52"]
[EventDate "2017.06.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. c4 Bb4+ 6. Bd2 Qe7+ 7. Qe2 Bxd2+ 8. Nbxd2 Qxe2+ 9. Bxe2 0-0 10. 0-0 c6 11. Rfe1 dxc4 12. Bxc4 Nbd7 13. Ng5 Nb6 14. Bb3 h6 15. Nge4 Nfd5 16. Bxd5 Nxd5 17. Nd6 Be6 18. Nxb7 Rab8 19. Nc5 Rxb2 20. Nxe6 fxe6 21. Nc4 Rc2 22. Na5 Rfxf2 23. Rxe6 Rxg2+ 24. Kf1 Rxh2 25. Kg1 Rcg2+ 26. Kf1 Nf4 0-1

[Event "Natal Potiguar op"]
[Site "Natal"]
[Date "2017.06.03"]
[Round "4"]
[White "Dos Santos, Bruna Roberta GA"]
[Black "Severiano Sobrinho, Valmar da Silva"]
[Result "1/2-1/2"]
[ECO "C07"]
[WhiteElo "1356"]
[BlackElo "1623"]
[PlyCount "85"]
[EventDate "2017.06.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. c3 Qb6 5. Ne2 Nc6 6. exd5 exd5 7. Nf3 Bg4 8. Ng3 cxd4 9. Be2 dxc3 10. bxc3 Nf6 11. 0-0 Bd6 12. Be3 Qc7 13. Qd3 Bxg3 14. hxg3 0-0 15. Rfd1 Rfe8 16. Rd2 Ne5 17. Nxe5 Bxe2 18. Rxe2 Rxe5 19. Bd4 Rxe2 20. Qxe2 Re8 21. Qd2 Ne4 22. Qd3 Nd6 23. Bxa7 b6 24. Bxb6 Qxb6 25. Qxd5 Rd8 26. Rd1 Nb7 27. Qb3 Qxb3 28. Rxd8+ Nxd8 29. axb3 Nc6 30. Kf1 f5 31. Ke2 Kf7 32. Kd3 Ke6 33. Kc4 Ne5+ 34. Kd4 Kd6 35. f3 g5 36. b4 Nf7 37. b5 Nd8 38. c4 Nb7 39. g4 fxg4 40. fxg4 h6 41. Ke4 Ke6 42. Kd4 Kd6 43. Ke4 1/2-1/2

[Event "Natal Potiguar op"]
[Site "Natal"]
[Date "2017.06.03"]
[Round "3"]
[White "Severiano Sobrinho, Valmar da Silva"]
[Black "Da Silva Araujo, Gabriel Victor"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "1623"]
[BlackElo "1919"]
[PlyCount "60"]
[EventDate "2017.06.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. b3 g6 3. Bb2 Nf6 4. Nc3 Nc6 5. Nf3 Bg7 6. d3 0-0 7. Qd2 b5 8. e5 Ng4 9. Nxb5 a6 10. Nc3 Ncxe5 11. Nxe5 Nxe5 12. f4 Ng4 13. Be2 d6 14. h3 Nf6 15. 0-0-0 Bb7 16. Rhg1 a5 17. g4 Qc7 18. h4 d5 19. d4 a4 20. Nxa4 Ne4 21. Qe3 c4 22. Nc5 Rxa2 23. Nxe4 dxe4 24. Bxc4 Rfa8 25. Qc3 Qxf4+ 26. Kb1 Qd6 27. b4 R2a4 28. Rgf1 e6 29. Kc1 Rc8 30. Ba3 Bd5 0-1

[Event "Natal Potiguar op"]
[Site "Natal"]
[Date "2017.06.02"]
[Round "1"]
[White "Rocha, Vitor Firmo de Souz"]
[Black "Severiano Sobrinho, Valmar da Silva"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "2210"]
[BlackElo "1623"]
[PlyCount "85"]
[EventDate "2017.06.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 c5 4. exd5 cxd4 5. Qxd4 exd5 6. Qxd5 Qxd5 7. Nxd5 Bd6 8. Be3 Ne7 9. 0-0-0 Nf5 10. Bb5+ Nc6 11. Nf3 0-0 12. Kb1 Nxe3 13. Nxe3 Bc5 14. Rhe1 Bxe3 15. Rxe3 Bg4 16. h3 Bxf3 17. Rxf3 Ne5 18. Re3 Rad8 19. Kc1 Rxd1+ 20. Kxd1 Rd8+ 21. Ke2 Ng6 22. g3 Rd5 23. Re8+ Nf8 24. c4 Rd6 25. Ba4 Re6+ 26. Rxe6 Nxe6 27. b4 f5 28. Bd7 Kf7 29. Ke3 g5 30. Bxe6+ Kxe6 31. Kd4 b6 32. c5 b5 33. f4 gxf4 34. gxf4 h6 35. h4 h5 36. a3 a6 37. c6 Kd6 38. c7 Kxc7 39. Ke5 Kd7 40. Kxf5 Ke7 41. Kg6 Ke6 42. f5+ Ke7 43. Kg7 1-0

[Event "Natal Potiguar op"]
[Site "Natal"]
[Date "2017.06.02"]
[Round "2"]
[White "Severiano Sobrinho, Valmar da Silva"]
[Black "Ribeiro, Luan Lincoln Cunha"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1623"]
[PlyCount "35"]
[EventDate "2017.06.02"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. c4 c5 6. cxd5 cxd4 7. Bb5+ Bd7 8. Nxd4 Nxd5 9. 0-0 Bd6 10. Re1+ Ne7 11. Nf5 Bb4 12. Nxg7+ Kf8 13. Bh6 Kg8 14. Qd4 Bxe1 15. Ne8 Nf5 16. Nf6+ Qxf6 17. Qxf6 Bxf2+ 18. Kxf2 1-0

[Event "Natal-ch"]
[Site "Natal"]
[Date "2016.02.08"]
[Round "6"]
[White "Da Silva, Antonio Dutra"]
[Black "Severiano Sobrinho, Valmar da Silva"]
[Result "1/2-1/2"]
[ECO "A42"]
[WhiteElo "1798"]
[BlackElo "1800"]
[PlyCount "62"]
[EventDate "2016.02.06"]
[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. c4 Nc6 2. Nf3 g6 3. Nc3 Bg7 4. d4 d6 5. e4 e5 6. d5 Nce7 7. Bd3 Nf6 8. h3 0-0 9. 0-0 h6 10. Rb1 Nh7 11. b4 f5 12. c5 g5 13. exf5 Bxf5 14. cxd6 cxd6 15. Bxf5 Nxf5 16. Ne4 Qe7 17. g4 Nh4 18. Nxh4 gxh4 19. Rb3 Rf7 20. b5 Raf8 21. Ba3 Rd8 22. b6 a6 23. Rc3 Ng5 24. Rc7 Qf8 25. Rxf7 Kxf7 26. Nxg5+ hxg5 27. Qf3+ Ke7 28. Qe3 Qf4 29. Rc1 Qxe3 30. fxe3 Ke8 31. e4 Bf6 1/2-1/2

[Event "Natal-ch"]
[Site "Natal"]
[Date "2016.02.08"]
[Round "5"]
[White "Severiano Sobrinho, Valmar da Silva"]
[Black "Marques, Dayvid Geverson Lop"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1800"]
[BlackElo "1561"]
[PlyCount "107"]
[EventDate "2016.02.06"]
[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 d5 2. Nc3 Bf5 3. Nf3 Nf6 4. Bf4 c6 5. e3 Nbd7 6. Bd3 Bxd3 7. Qxd3 g6 8. 0-0 Bg7 9. Rad1 0-0 10. e4 dxe4 11. Nxe4 Nxe4 12. Qxe4 Nf6 13. Qe3 Nd5 14. Qd2 Nxf4 15. Qxf4 Qd6 16. Qxd6 exd6 17. Ng5 Bf6 18. Ne4 Be7 19. d5 f5 20. Nc3 Rfd8 21. dxc6 bxc6 22. Rfe1 Kf7 23. Ne2 d5 24. Nd4 Rd6 25. Rd3 f4 26. g3 g5 27. Nf5 Re6 28. Rxe6 Kxe6 29. Nxe7 Kxe7 30. gxf4 gxf4 31. Rh3 Rh8 32. Rh4 f3 33. Rf4 Rf8 34. Rxf8 Kxf8 35. h3 Kf7 36. Kh2 Kf6 37. Kg3 Kf5 38. Kxf3 h5 39. Kg3 a5 40. Kf3 h4 41. a4 c5 42. c3 c4 43. Ke3 Ke5 44. f4+ Kf5 45. Kf3 Kg6 46. Kg4 Kf6 47. Kxh4 Kf5 48. Kg3 Ke4 49. h4 Kd3 50. h5 Kc2 51. h6 Kxb2 52. h7 Kxc3 53. h8Q+ d4 54. Qe5 1-0

[Event "Natal-ch"]
[Site "Natal"]
[Date "2016.02.07"]
[Round "3"]
[White "Do Nascimento, Denner Leonardo O"]
[Black "Severiano Sobrinho, Valmar da Silva"]
[Result "0-1"]
[ECO "D35"]
[WhiteElo "1500"]
[BlackElo "1800"]
[PlyCount "136"]
[EventDate "2016.02.06"]
[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. c4 d5 3. cxd5 exd5 4. Nc3 Nf6 5. Bg5 Be7 6. e3 0-0 7. Nf3 Bg4 8. Be2 Nc6 9. 0-0 Bf5 10. a3 Ne4 11. Bxe7 Nxe7 12. Bd3 Ng6 13. Ne1 Qg5 14. Bxe4 dxe4 15. Nd5 Bh3 16. Nf4 Bf5 17. Qh5 Qxh5 18. Nxh5 Bg4 19. Ng3 Be6 20. f3 exf3 21. Nxf3 Rfe8 22. Rac1 c6 23. Rfe1 Bd5 24. e4 Be6 25. Ng5 Nf4 26. Rf1 f6 27. Rxf4 fxg5 28. Rf2 Rad8 29. Rd1 c5 30. d5 Bf7 31. Re2 Re5 32. d6 Be6 33. Rdd2 h5 34. Nf5 Bxf5 35. exf5 Rxe2 36. Rxe2 Rxd6 37. Re8+ Kf7 38. Ra8 Rd1+ 39. Kf2 Rd2+ 40. Kg1 Rxb2 41. Rxa7 Kf6 42. a4 Kxf5 43. a5 c4 44. a6 bxa6 45. Rxa6 c3 46. Rc6 c2 47. Kf1 Rb1+ 48. Ke2 c1Q 49. Rxc1 Rxc1 50. Kd2 Rc4 51. Kd3 Re4 52. g3 h4 53. g4+ Rxg4 54. h3 Rg3+ 55. Ke2 Rxh3 56. Kf2 Ra3 57. Kg2 Kf4 58. Kh2 Kg4 59. Kg2 Ra2+ 60. Kf1 Kg3 61. Ke1 Kf3 62. Kd1 Ke3 63. Kc1 Kd3 64. Kb1 Rg2 65. Kc1 Rh2 66. Kb1 Kc3 67. Ka1 Kb3 68. Kb1 Rh1# 0-1

[Event "Natal-ch"]
[Site "Natal"]
[Date "2016.02.07"]
[Round "4"]
[White "Severiano Sobrinho, Valmar da Silva"]
[Black "De Oliveira, Moises Alves Leite"]
[Result "0-1"]
[ECO "C11"]
[WhiteElo "1800"]
[BlackElo "1673"]
[PlyCount "96"]
[EventDate "2016.02.06"]
[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 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. Bd3 c5 6. Be3 Nc6 7. Bb5 a6 8. Bxc6 bxc6 9. a4 cxd4 10. Bxd4 c5 11. Be3 d4 12. Bxd4 cxd4 13. Qxd4 Bc5 14. Qe4 Rb8 15. b3 Qb6 16. Qf4 Bd4 17. Nge2 Bxe5 18. Qg4 0-0 19. 0-0 Qc6 20. Qh3 Bb7 21. f4 Bf6 22. f5 Rbc8 23. Rf3 Qc5+ 24. Re3 Qxf5 25. Rf1 Qxh3 26. Rxh3 Bxc3 27. Nxc3 Rfd8 28. Rd3 Nf6 29. Rfd1 Rxd3 30. Rxd3 h6 31. Re3 Ng4 32. Rg3 Ne5 33. h3 f6 34. Kf2 Kf7 35. Ke1 Bxg2 36. Rxg2 Rxc3 37. h4 Nf3+ 38. Kd1 Nxh4 39. Rg4 Nf5 40. Rc4 Rxc4 41. bxc4 Ne3+ 42. Kd2 Nxc4+ 43. Kd3 Nb6 44. a5 Nd5 45. Kd4 Nb4 46. c4 Nc6+ 47. Kc5 Nxa5 48. Kb6 Nxc4+ 0-1

[Event "Natal-ch"]
[Site "Natal"]
[Date "2016.02.06"]
[Round "1"]
[White "Cilento, Lucas Geraldo"]
[Black "Severiano Sobrinho, Valmar da Silva"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "1928"]
[BlackElo "1800"]
[PlyCount "41"]
[EventDate "2016.02.06"]
[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 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 g6 5. Re1 d6 6. d4 a6 7. Bxc6+ bxc6 8. dxe5 Ng4 9. Bg5 f6 10. exf6 Nxf6 11. e5 Kf7 12. Bxf6 Be7 13. Bxh8 Qxh8 14. Nc3 Bg4 15. h3 Bf5 16. e6+ Bxe6 17. Qe2 Qc8 18. Nd4 Bxh3 19. Qxe7+ Kg8 20. gxh3 Qxh3 21. Qe6+ 1-0

[Event "Natal-ch"]
[Site "Natal"]
[Date "2016.02.06"]
[Round "2"]
[White "Severiano Sobrinho, Valmar da Silva"]
[Black "De Menezes, Ricardo Fagner Dias"]
[Result "0-1"]
[ECO "C14"]
[WhiteElo "1800"]
[BlackElo "1617"]
[PlyCount "100"]
[EventDate "2016.02.06"]
[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 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. Bd3 Nfd7 6. Bd2 Nf6 7. Bf4 a6 8. Nf3 Bb4 9. Qe2 c5 10. dxc5 d4 11. 0-0-0 dxc3 12. b3 Qa5 13. a4 Bxc5 14. Ne5 Qb4 15. Nc4 b5 16. Nd6+ Kf8 17. Kb1 Nc6 18. Nxb5 axb5 19. Bxb5 Nd4 20. Qd3 Bd7 21. Bxd7 Nxd7 22. Bd6+ Bxd6 23. Qxd4 Qxd4 24. Rxd4 Ra6 25. Rhd1 Ke7 26. Rc4 Nf6 27. Re1 Bf4 28. Rd1 Rd8 29. Rxd8 Kxd8 30. Rxc3 Rd6 31. a5 Be5 32. Rd3 Nxe4 33. Rxd6+ Bxd6 34. f3 Nc3+ 35. Kc1 Bxh2 36. Kd2 Be5 37. Kd3 Bf6 38. Kc4 Kc7 39. g4 g6 40. f4 h5 41. g5 Bg7 42. b4 h4 43. b5 h3 44. b6+ Kc6 45. b7 Kxb7 46. Kc5 h2 47. Kd6 Bf8+ 48. Ke5 Kc6 49. Kf6 h1Q 50. a6 Qh7 0-1

