[Event "Pernambuco-ch 2020"]
[Site "Recife"]
[Date "2021.08.21"]
[Round "4.23"]
[White "Goncalves Costa, Douglas Jose"]
[Black "Barbosa Borba, Joao Miguel"]
[Result "1-0"]
[ECO "B98"]
[WhiteElo "1673"]
[PlyCount "69"]
[EventDate "2021.08.20"]
[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. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Nbd7 9. 0-0-0 e5 10. Nf5 Nc5 11. Nxg7+ Kf8 12. Bh6 Bg4 13. Qg3 Qc8 14. Nf5+ Ke8 15. Nxe7 Kxe7 16. Bg5 Bxd1 17. Nd5+ Kf8 18. Bh6+ Ke8 19. Nxf6+ Kd8 20. Qg7 Ke7 21. Bc4 Ne6 22. Nd5+ Kd7 23. Nb6+ Kc6 24. Nxc8 Raxc8 25. Bxe6 fxe6 26. Rxd1 exf4 27. Bxf4 e5 28. Be3 Rhg8 29. Qe7 Rcd8 30. Qe6 Rxg2 31. Qd5+ Kc7 32. Qa5+ Kc8 33. Bb6 Rd7 34. Qc3+ Kb8 35. Qf3 1-0

[Event "Pernambuco-ch 2020"]
[Site "Recife"]
[Date "2021.08.21"]
[Round "3.14"]
[White "Simoes, Evandro Monteiro"]
[Black "Goncalves Costa, Douglas Jose"]
[Result "1-0"]
[ECO "D37"]
[BlackElo "1673"]
[PlyCount "149"]
[EventDate "2021.08.20"]
[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 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Be7 5. Bf4 0-0 6. e3 c5 7. Be2 Nc6 8. 0-0 a6 9. a3 dxc4 10. dxc5 Nd5 11. Nxd5 exd5 12. Bd6 Bxd6 13. cxd6 Be6 14. Qd2 b5 15. Rfd1 Qxd6 16. e4 Rfd8 17. exd5 Qxd5 18. Qe3 Qf5 19. Qb6 Bd5 20. Rd2 Re8 21. Qc5 Be4 22. Qxf5 Bxf5 23. Nh4 Ne7 24. Nxf5 Nxf5 25. Rad1 Ra7 26. Bf3 Rae7 27. Kf1 g6 28. g4 Ng7 29. Bc6 Rf8 30. Rd7 Rxd7 31. Rxd7 Ne6 32. Ra7 Nc5 33. Bd5 Nd3 34. b4 Ne5 35. h3 g5 36. Rxa6 Rc8 37. Ra8 Rxa8 38. Bxa8 f6 39. Ke2 Kf8 40. Be4 h6 41. Ke3 Ke7 42. Kd4 Kd6 43. Kc3 Nd7 44. Kd4 Nb6 45. f3 Na4 46. Bc2 Nb6 47. Bd1 Kc6 48. Bc2 Kd6 49. Bg6 Na8 50. Be4 Nc7 51. Bg6 Ne6+ 52. Kc3 Ke5 53. Bf5 Nd4 54. Be4 Ne2+ 55. Kd2 Nf4 56. Bc6 Kd4 57. Bxb5 c3+ 58. Kc2 Nd5 59. Ba4 Ne3+ 60. Kc1 Nc4 61. b5 Nb6 62. Bb3 Kc5 63. a4 Kb4 64. Kc2 Nd7 65. Be6 Nc5 66. b6 Ka5 67. Kxc3 Nxa4+ 68. Kd4 Kxb6 69. Ke4 Kc6 70. Kf5 Kd6 71. Kxf6 Nc5 72. Bf5 Nb3 73. Kg6 Nd4 74. Kxh6 Nxf3 75. Be4 1-0

[Event "Potiguar-ch sf"]
[Site "Natal"]
[Date "2015.09.07"]
[Round "7"]
[White "Arruda Junior, Jair Jose"]
[Black "Goncalves Costa, Douglas Jose"]
[Result "1/2-1/2"]
[ECO "D12"]
[WhiteElo "1495"]
[BlackElo "1854"]
[PlyCount "64"]
[EventDate "2015.09.04"]
[EventType "swiss"]
[EventRounds "7"]
[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. Nc3 Nf6 4. cxd5 exd5 5. Nf3 Bf5 6. e3 c6 7. Be2 Be7 8. 0-0 0-0 9. Nh4 Be6 10. Bd3 Nbd7 11. Nf5 Bxf5 12. Bxf5 g6 13. Bd3 Re8 14. Re1 Bd6 15. e4 dxe4 16. Nxe4 Nxe4 17. Rxe4 Rxe4 18. Bxe4 Nf6 19. Bg5 Be7 20. Bf3 Nd5 21. Bxe7 Nxe7 22. Qd3 Qd7 23. Re1 Rd8 24. Qe4 Nf5 25. Bg4 Qxd4 26. Bxf5 gxf5 27. Qxf5 Qd2 28. Qe5 Qd5 29. Qg3+ Kh8 30. Qc3+ Kg8 31. Qg3+ Kh8 32. Qc3+ Kg8 1/2-1/2

[Event "Potiguar-ch sf"]
[Site "Natal"]
[Date "2015.09.07"]
[Round "6"]
[White "Goncalves Costa, Douglas Jose"]
[Black "De Macedo, Luiz Soares"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "1719"]
[BlackElo "1602"]
[PlyCount "47"]
[EventDate "2015.09.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Nc3 a6 5. Bc4 Be7 6. 0-0 Ngf6 7. Re1 0-0 8. h3 b5 9. Bb3 Bb7 10. a3 Nb6 11. dxe5 Nfd7 12. exd6 Bxd6 13. Bg5 Qc8 14. Nh4 Nc4 15. Bxc4 bxc4 16. Nf5 Bc5 17. Na4 g6 18. Nxc5 gxf5 19. Nxb7 f6 20. Bh6 Re8 21. Qd5+ Kh8 22. Qf7 Rg8 23. exf5 Ne5 24. Qxf6+ 1-0

[Event "Potiguar-ch sf"]
[Site "Natal"]
[Date "2015.09.06"]
[Round "5"]
[White "Do Nascimento, Denner Leonardo O"]
[Black "Goncalves Costa, Douglas Jose"]
[Result "1-0"]
[ECO "E85"]
[WhiteElo "1447"]
[BlackElo "1719"]
[PlyCount "63"]
[EventDate "2015.09.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Rd1 Rxd1+ 10. Nxd1 Nc6 11. a3 Nd4 12. Bd3 Be6 13. Ne2 Rd8 14. Nxd4 exd4 15. Bd2 Nd7 16. 0-0 Ne5 17. Nf2 Nxc4 18. Bc1 c5 19. f4 Ne3 20. Re1 c4 21. f5 gxf5 22. exf5 Nxf5 23. Bxf5 Bxf5 24. g4 Bc2 25. Re7 d3 26. Bd2 Bxb2 27. Ne4 c3 28. Bh6 d2 29. Nf6+ Kh8 30. Rxf7 d1Q+ 31. Kf2 Bg6 32. Bg7# 1-0

[Event "Potiguar-ch sf"]
[Site "Natal"]
[Date "2015.09.06"]
[Round "4.8"]
[White "Goncalves Costa, Douglas Jose"]
[Black "Pinheiro, Davi Sales"]
[Result "0-1"]
[ECO "B04"]
[WhiteElo "1719"]
[BlackElo "1961"]
[PlyCount "144"]
[EventDate "2015.09.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 dxe5 5. Nxe5 c6 6. Bd3 Nd7 7. Nf3 e6 8. 0-0 Be7 9. c3 0-0 10. Re1 c5 11. Nbd2 b6 12. Ne4 Bb7 13. Qe2 Qc7 14. a3 Nf4 15. Bxf4 Qxf4 16. dxc5 bxc5 17. Rad1 Rfd8 18. Ba6 Bd5 19. c4 Bxe4 20. Qxe4 Qxe4 21. Rxe4 Nb6 22. Ree1 Bf6 23. b4 cxb4 24. axb4 Bc3 25. Rxd8+ Rxd8 26. Rc1 Bxb4 27. c5 Nd5 28. c6 Nc7 29. Bb7 Kf8 30. Kf1 Ke7 31. Ne5 Rd5 32. Nd7 a5 33. Nb8 Kd6 34. Na6 Bc5 35. Nxc7 Kxc7 36. Ke2 a4 37. Rc2 a3 38. Ba6 Kxc6 39. Bc4 Re5+ 40. Kd3 Rf5 41. f3 Re5 42. Re2 Rh5 43. h3 Bd6 44. Rc2 Kb6 45. Ba2 Rb5 46. Bc4 Rc5 47. Bb3 Rxc2 48. Kxc2 Kc5 49. Kd3 Bg3 50. Kc3 h5 51. Kd3 h4 52. Kc3 Be1+ 53. Kd3 Bf2 54. Kc3 Kd6 55. Kd3 Ke5 56. Ke2 Bc5 57. Kd3 f5 58. Ba2 Kf4 59. Ke2 e5 60. Bd5 Kg3 61. Kf1 g5 62. Be6 e4 63. fxe4 fxe4 64. Bc4 g4 65. hxg4 Kxg4 66. Ke2 Kg3 67. Kf1 e3 68. Bd5 Kf4 69. Ke2 Ke5 70. Bf7 Kd4 71. Ba2 Kc3 72. Be6 Kb2 0-1

[Event "Potiguar-ch sf"]
[Site "Natal"]
[Date "2015.09.05"]
[Round "3.17"]
[White "Da Silva, Karina Ingryd Olive"]
[Black "Goncalves Costa, Douglas Jose"]
[Result "0-1"]
[ECO "C90"]
[BlackElo "1719"]
[PlyCount "42"]
[EventDate "2015.09.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. d3 Na5 10. Bc2 c5 11. b4 cxb4 12. cxb4 Nc6 13. Bd2 Qc7 14. a3 Bg4 15. Bg5 Bxf3 16. Qxf3 Nd4 17. Qg3 Qxc2 18. Bh6 Ne8 19. Nc3 Qxc3 20. Rac1 Ne2+ 21. Kf1 Nxg3+ 0-1

[Event "Potiguar-ch sf"]
[Site "Natal"]
[Date "2015.09.05"]
[Round "2.8"]
[White "Goncalves Costa, Douglas Jose"]
[Black "Jordao Barbosa, Marcio Ferre"]
[Result "0-1"]
[ECO "C65"]
[WhiteElo "1719"]
[BlackElo "1978"]
[PlyCount "110"]
[EventDate "2015.09.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. a3 Be7 6. 0-0 0-0 7. Nc3 Bg4 8. Be3 d5 9. exd5 Nxd5 10. Nxd5 Qxd5 11. Bc4 Qd6 12. h3 Bh5 13. g4 Bg6 14. Ng5 Nd4 15. c3 Bxg5 16. Bxg5 Ne6 17. Be3 b6 18. Qe2 Kh8 19. Rad1 f5 20. Bxe6 Qxe6 21. Bf4 fxg4 22. Bxe5 Rae8 23. Rfe1 Bf5 24. Qd2 Qd5 25. d4 Re6 26. h4 Qd8 27. Bg3 Rfe8 28. Re5 Rxe5 29. dxe5 Qxd2 30. Rxd2 Kg8 31. Kf1 Kf7 32. Rd4 Ke6 33. Ke2 h5 34. c4 Ke7 35. Kd2 Be6 36. Kc3 Rf8 37. Rd3 Rf5 38. Kb4 a6 39. c5 Rf8 40. c6 Rf3 41. Rxf3 gxf3 42. a4 Bd5 43. a5 Bxc6 44. axb6 cxb6 45. Kc4 Ke6 46. Kd4 Kf5 47. Ke3 g5 48. Kd4 gxh4 49. Bxh4 Kg4 50. Bg3 h4 51. Bh2 Kh3 52. Bf4 Kg2 53. Ke3 h3 54. e6 h2 55. Bxh2 Kxh2 0-1

[Event "Potiguar-ch sf"]
[Site "Natal"]
[Date "2015.09.04"]
[Round "1.23"]
[White "Gomes, Johemary Sagastume"]
[Black "Goncalves Costa, Douglas Jose"]
[Result "0-1"]
[ECO "B50"]
[BlackElo "1719"]
[PlyCount "48"]
[EventDate "2015.09.04"]
[EventType "swiss"]
[EventRounds "7"]
[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. Nc3 a6 4. h3 Nf6 5. Bc4 Nc6 6. a3 e6 7. d3 b5 8. Bb3 Be7 9. Bf4 e5 10. Be3 Be6 11. Bxe6 fxe6 12. 0-0 0-0 13. Qd2 Nd4 14. Bxd4 cxd4 15. Ne2 Nh5 16. Ng3 Nf4 17. Ne2 Qe8 18. Nxf4 Rxf4 19. Qe2 Qg6 20. Rac1 Raf8 21. Kh1 Qh5 22. Rfe1 Rxf3 23. gxf3 Qxh3+ 24. Kg1 Rf6 0-1

[Event "Natal Potiguar op 11th"]
[Site "Natal"]
[Date "2015.08.09"]
[Round "4"]
[White "De Araujo, Marco Antonio Sena"]
[Black "Goncalves Costa, Douglas Jose"]
[Result "1-0"]
[ECO "E81"]
[WhiteElo "1615"]
[PlyCount "37"]
[EventDate "2015.08.07"]
[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. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Bg5 Nc6 7. Nge2 a6 8. d5 Ne5 9. Nd4 c5 10. Nc2 Qa5 11. Bd2 Rb8 12. Rb1 Qc7 13. Be2 e6 14. dxe6 Bxe6 15. Nd5 Nxd5 16. cxd5 Bd7 17. f4 f5 18. fxe5 fxe4 19. e6 1-0

[Event "Natal Potiguar op 11th"]
[Site "Natal"]
[Date "2015.08.09"]
[Round "5"]
[White "Goncalves Costa, Douglas Jose"]
[Black "Vilela, Paulo Sergio da Cam"]
[Result "0-1"]
[ECO "B08"]
[BlackElo "1589"]
[PlyCount "48"]
[EventDate "2015.08.07"]
[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 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 0-0 6. 0-0 Nbd7 7. h3 e5 8. Be3 c6 9. a4 Qe7 10. Nd2 h5 11. f4 exf4 12. Bxf4 Nh7 13. Nf3 f5 14. exf5 Rxf5 15. Bh2 d5 16. Bd3 Nb6 17. Bxf5 Bxf5 18. b3 Qe3+ 19. Kh1 Qxc3 20. a5 Nd7 21. Qe2 Rf8 22. Nh4 Qxc2 23. Qe7 Bf6 24. Qd6 Bxh4 0-1

[Event "Natal Potiguar op 11th"]
[Site "Natal"]
[Date "2015.08.08"]
[Round "3"]
[White "Goncalves Costa, Douglas Jose"]
[Black "Dantas, Isaac Pereira"]
[Result "1/2-1/2"]
[ECO "D36"]
[BlackElo "1640"]
[PlyCount "70"]
[EventDate "2015.08.07"]
[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 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 0-0 8. Qc2 Nbd7 9. Nge2 h6 10. Bh4 Ne8 11. Bxe7 Qxe7 12. 0-0 Ndf6 13. Rab1 Nd6 14. Ng3 h5 15. b4 h4 16. Nf5 Nxf5 17. Bxf5 Bxf5 18. Qxf5 Qe6 19. Qxe6 fxe6 20. f3 Nd7 21. Na4 b5 22. Nb2 Nb6 23. Kf2 g5 24. Nd3 Nc4 25. Ra1 Kg7 26. Nc5 Rfe8 27. g3 e5 28. gxh4 gxh4 29. Rg1+ Kf6 30. Rg4 exd4 31. exd4 Re3 32. Re1 Rxe1 33. Kxe1 a5 34. bxa5 Rxa5 35. Rxh4 Rxa2 1/2-1/2

[Event "Natal Potiguar op 11th"]
[Site "Natal"]
[Date "2015.08.08"]
[Round "2"]
[White "Hiramine, Rodrigo Yoshio Ferr"]
[Black "Goncalves Costa, Douglas Jose"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "1995"]
[PlyCount "57"]
[EventDate "2015.08.07"]
[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 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. 0-0 d6 6. a3 0-0 7. c3 a6 8. Ba4 b5 9. Bc2 Qe7 10. Bg5 Nd8 11. d4 Bb6 12. h3 Ne6 13. Bh4 Nf4 14. Nbd2 h6 15. a4 Rb8 16. axb5 axb5 17. b4 Ng6 18. Bg3 Nh5 19. Bd3 Bd7 20. Nxe5 dxe5 21. Qxh5 exd4 22. cxd4 Bxd4 23. Rab1 Be5 24. f4 Bf6 25. Kh1 Rfd8 26. Qe2 Bh4 27. Bh2 Bxh3 28. gxh3 Qd7 29. Rf3 1-0

[Event "Natal Potiguar op 11th"]
[Site "Natal"]
[Date "2015.08.07"]
[Round "1"]
[White "Goncalves Costa, Douglas Jose"]
[Black "De Oliveira, Moises Alves Leite"]
[Result "1-0"]
[ECO "C04"]
[BlackElo "1708"]
[PlyCount "59"]
[EventDate "2015.08.07"]
[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 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Bd7 5. c3 Be7 6. Bd3 dxe4 7. Nxe4 f5 8. Ng3 Nf6 9. 0-0 h6 10. Re1 g5 11. Bc4 f4 12. Ne4 Nxe4 13. Rxe4 Qc8 14. Qe2 Nd8 15. d5 c5 16. dxe6 Bc6 17. Ne5 Bxe4 18. Qh5+ Kf8 19. Nd7+ Kg7 20. Bxf4 Bg6 21. Be5+ Bf6 22. Bxf6+ Kh7 23. Qh3 Re8 24. Bxg5 h5 25. Nf6+ Kg7 26. Nxe8+ Bxe8 27. Qf5 Bg6 28. Qf6+ Kh7 29. Rd1 Qc7 30. Rd7+ 1-0

[Event "Natal Academia Potiguar 8th"]
[Site "Natal"]
[Date "2015.06.07"]
[Round "5.5"]
[White "Dos Anjos, Avner Augusto"]
[Black "Goncalves Costa, Douglas Jose"]
[Result "0-1"]
[ECO "C52"]
[WhiteElo "1973"]
[PlyCount "48"]
[EventDate "2015.06.05"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. 0-0 d6 8. Qb3 Qf6 9. cxd4 Bb6 10. e5 dxe5 11. dxe5 Qg6 12. e6 Bxe6 13. Bxe6 fxe6 14. Re1 0-0-0 15. Bg5 Nd4 16. Nxd4 Rxd4 17. Be3 Rd3 18. Nc3 Bxe3 19. fxe3 Rd2 20. g3 Ne7 21. Rab1 b6 22. Nb5 Kb8 23. Nxc7 Qe4 24. Na6+ Ka8 0-1

[Event "Natal Academia Potiguar 8th"]
[Site "Natal"]
[Date "2015.06.06"]
[Round "2.10"]
[White "Da Silva Araujo, Gabriel Victor"]
[Black "Goncalves Costa, Douglas Jose"]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "1823"]
[PlyCount "77"]
[EventDate "2015.06.05"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Nxe4 5. Bxc6 dxc6 6. d4 Be7 7. Re1 Bf5 8. Nxe5 Nf6 9. Nc3 0-0 10. Ne2 c5 11. Ng3 Be6 12. Be3 Nd5 13. c3 Nxe3 14. fxe3 c6 15. Nd3 cxd4 16. exd4 Qc7 17. Ne4 b6 18. Qh5 g6 19. Qh6 Bf5 20. Nf4 Rfe8 21. Ng5 Bxg5 22. Qxg5 Qd6 23. Nh5 Re6 24. Nf4 Ree8 25. Nh5 Re6 26. Nf4 Rxe1+ 27. Rxe1 Be6 28. Nxe6 fxe6 29. Qg4 Re8 30. Qe4 c5 31. d5 e5 32. Re3 Kg7 33. c4 a5 34. a4 Re7 35. b3 Qf6 36. Rf3 Qd6 37. Re3 Qf6 38. Rf3 Qd6 39. Re3 1/2-1/2

[Event "Natal Academia Potiguar 8th"]
[Site "Natal"]
[Date "2015.06.06"]
[Round "3.14"]
[White "Goncalves Costa, Douglas Jose"]
[Black "Dos Santos, Bruna Roberta GA"]
[Result "1-0"]
[ECO "C78"]
[PlyCount "17"]
[EventDate "2015.06.05"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 d5 7. exd5 Nxd5 8. Re1 Bd6 9. Bxd5 1-0

[Event "Natal Academia Potiguar 8th"]
[Site "Natal"]
[Date "2015.06.05"]
[Round "1.16"]
[White "Goncalves Costa, Douglas Jose"]
[Black "Frankental, David"]
[Result "1/2-1/2"]
[ECO "D10"]
[BlackElo "1757"]
[PlyCount "52"]
[EventDate "2015.06.05"]
[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. cxd5 cxd5 4. Nc3 Nf6 5. Bg5 e6 6. e3 Nc6 7. a3 h6 8. Bh4 Be7 9. Bd3 e5 10. dxe5 Nxe5 11. Bb5+ Bd7 12. Bxf6 Bxf6 13. Qxd5 0-0 14. Bxd7 Nxd7 15. Nge2 Qc7 16. 0-0 Rfd8 17. Rfd1 Nb6 18. Qb3 Qc4 19. Qc2 Nd5 20. Rac1 Nxc3 21. Nxc3 Bxc3 22. Qxc3 Rxd1+ 23. Rxd1 Qxc3 24. bxc3 Rc8 25. Rd3 Rc4 26. f3 Ra4 1/2-1/2

