[Event "Joinville open"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "6"]
[White "De Oliveira, Carlos Eduardo V"]
[Black "Zacharias, Douglas"]
[Result "1-0"]
[ECO "E91"]
[PlyCount "99"]
[EventDate "1977.05.19"]
[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 0-0 5. Be2 d6 6. Nf3 Nc6 7. d5 Nb8 8. 0-0 e6 9. Bg5 exd5 10. cxd5 Nbd7 11. Nd4 h6 12. Be3 Ne5 13. f3 a6 14. Rc1 Kh7 15. Qc2 Bd7 16. h3 b5 17. Nd1 Rc8 18. f4 Nc4 19. Bxc4 bxc4 20. Qxc4 c5 21. dxc6 Nxe4 22. Qxa6 Nc5 23. cxd7 Qxd7 24. Qe2 Qa4 25. Nc3 Qa8 26. f5 Nd7 27. fxg6+ fxg6 28. Rxf8 Nxf8 29. Rf1 Qb7 30. Qb5 Qe7 31. Nd5 Qe5 32. Qb7 Re8 33. Nf6+ Kh8 34. Nxe8 Qxe3+ 35. Kh1 Qxe8 36. Qd5 Qe3 37. Nf3 Qe2 38. Nd2 Ne6 39. b4 Bc3 40. Qa8+ Kh7 41. Qe4 Qxe4 42. Nxe4 Bxb4 43. Rf6 Nd8 44. Nxd6 Kg7 45. Ne4 Nf7 46. Rb6 Be1 47. a4 Ne5 48. Kg1 h5 49. Kf1 Nc4 50. Rb7+ 1-0

[Event "Joinville open"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "4"]
[White "Ruppel, Luiz Bittencourt"]
[Black "Zacharias, Douglas"]
[Result "1-0"]
[ECO "C06"]
[PlyCount "71"]
[EventDate "1977.05.19"]
[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 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 Be7 6. Ne2 b6 7. 0-0 Ba6 8. Bxa6 Nxa6 9. a3 c5 10. c3 cxd4 11. cxd4 0-0 12. f4 Rc8 13. Ng3 g6 14. Qe2 Nab8 15. Qg4 Nc6 16. Nf3 Re8 17. f5 Nxd4 18. Nxd4 Nxe5 19. Qe2 Bc5 20. Qxe5 f6 21. Qf4 e5 22. Qh6 Bxd4+ 23. Kh1 g5 24. Nh5 Re7 25. Nxf6+ Kh8 26. Bxg5 Rc6 27. Qh4 Rg7 28. Nxh7 Rxh7 29. Bxd8 Rxh4 30. Bxh4 Kg7 31. Rac1 Rc5 32. b4 Rc4 33. Rxc4 dxc4 34. b5 c3 35. Rc1 e4 36. Be1 1-0

[Event "Joinville open"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "2"]
[White "Sucupira Jr, Alberto"]
[Black "Zacharias, Douglas"]
[Result "0-1"]
[ECO "A00"]
[PlyCount "168"]
[EventDate "1977.05.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. g4 e5 2. Bg2 d5 3. c4 Nf6 4. g5 Ne4 5. cxd5 Nd6 6. d3 Be7 7. Nf3 Nd7 8. Nc3 f5 9. gxf6 Bxf6 10. h4 Qe7 11. Ng5 Nb6 12. e4 Nf7 13. Bh3 Bxh3 14. Rxh3 Bxg5 15. Bxg5 Nxg5 16. hxg5 Qxg5 17. Qh5+ Qxh5 18. Rxh5 Nd7 19. Nb5 Kd8 20. Rc1 Rc8 21. Nxa7 Ra8 22. Nb5 g6 23. Rh3 Rc8 24. d4 h5 25. dxe5 Nxe5 26. f4 Ng4 27. Nd4 Ke7 28. Ke2 Kd6 29. Ne6 c6 30. Rhc3 h4 31. Ng5 Rhf8 32. dxc6 bxc6 33. Nh3 Rg8 34. e5+ Kd5 35. Rc5+ Ke4 36. R1c4+ Kf5 37. Rxc6 Rxc6 38. Rxc6 Rb8 39. b3 Rb4 40. Rc4 Rb7 41. b4 Ra7 42. Rc2 Ra3 43. Nf2 Ne3 44. Rb2 Nc4 45. Rc2 Ne3 46. Rb2 Nd5 47. b5 Nxf4+ 48. Kf1 h3 49. b6 h2 50. Nh1 Rf3+ 51. Rf2 Rc3 52. Rxh2 Rc1+ 53. Kf2 Rb1 54. Kf3 Rxb6 55. Ng3+ Kxe5 56. Rc2 g5 57. Kg4 Ne6 58. Re2+ Kd5 59. Rd2+ Kc6 60. Ne4 Rb4 61. Kf5 Nd4+ 62. Ke5 Nf3+ 63. Kf5 Nxd2 64. Nxd2 Rb5+ 65. Kg4 Kd7 66. Nf3 Ke7 67. Nxg5 Rb4+ 68. Kf3 Rb5 69. Ne4 Rh5 70. Ke3 Ke6 71. Kd4 Ra5 72. Nc3 Ra8 73. Kd3 Ra3 74. Kc4 Ra5 75. Kb4 Ra7 76. a4 Kd6 77. a5 Ra8 78. Ne4+ Kc6 79. a6 Kb6 80. Nc5 Ka7 81. Ka5 Rh8 82. Kb4 Rh4+ 83. Kb5 Rh1 84. Kc4 Rd1 0-1

[Event "Joinville open"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "7"]
[White "Zacharias, Douglas"]
[Black "Chuchene Silva, Jurandir"]
[Result "0-1"]
[ECO "B92"]
[PlyCount "80"]
[EventDate "1977.05.19"]
[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. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 b5 8. Bg5 Nbd7 9. 0-0 Qc7 10. a3 Bb7 11. Bd3 h6 12. Bh4 Be7 13. f3 g5 14. Bg3 Nh5 15. Bf2 Ndf6 16. a4 b4 17. Ne2 Nf4 18. Ng3 h5 19. Nf5 g4 20. a5 gxf3 21. Qxf3 Qd7 22. Nxe7 Kxe7 23. Bh4 Rag8 24. g3 Rg4 25. Bxf6+ Kxf6 26. Kh1 Ke7 27. gxf4 f5 28. Qe3 Qc6 29. h3 fxe4 30. Be2 exf4 31. Nd4 Qd5 32. Rxf4 Rxf4 33. Qxf4 Qxd4 34. Qg5+ Kd7 35. Rf1 e3+ 36. Bf3 Bxf3+ 37. Rxf3 Qd1+ 38. Kg2 Qxc2+ 39. Kg3 h4+ 40. Kg4 Qg2+ 0-1

[Event "Joinville open"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "5"]
[White "Zacharias, Douglas"]
[Black "Minutillo, Italo"]
[Result "1-0"]
[ECO "B76"]
[PlyCount "55"]
[EventDate "1977.05.19"]
[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. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 g6 7. Be3 Bg7 8. f3 0-0 9. Qd2 e5 10. Ndb5 Ne8 11. 0-0-0 Be6 12. Nxd6 Nxd6 13. Qxd6 Qa5 14. Qc5 Bh6 15. Bb5 Bxe3+ 16. Qxe3 Nd4 17. Bd3 Bxa2 18. h4 Qb6 19. Qd2 Rac8 20. h5 Bb3 21. hxg6 Qa5 22. Qh6 Rfd8 23. g7 Qa1+ 24. Kd2 Nxf3+ 25. gxf3 Rxd3+ 26. Ke2 Rd2+ 27. Kxd2 Rd8+ 28. Ke3 1-0

[Event "Joinville open"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "1"]
[White "Zacharias, Douglas"]
[Black "Schmitt, Alon"]
[Result "1-0"]
[ECO "B45"]
[PlyCount "89"]
[EventDate "1977.05.19"]
[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 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Be3 Nf6 6. Nc3 Bb4 7. f3 0-0 8. a3 Ba5 9. Qd2 d5 10. b4 Bb6 11. Nxc6 bxc6 12. e5 Bxe3 13. Qxe3 Nd7 14. Bd3 Qb6 15. Qxb6 axb6 16. f4 Ba6 17. Kd2 Bxd3 18. cxd3 c5 19. bxc5 bxc5 20. Rhb1 Rfb8 21. Kc2 Rxb1 22. Kxb1 Rb8+ 23. Kc2 d4 24. Ne4 f6 25. exf6 Nxf6 26. Nxf6+ gxf6 27. a4 Kf8 28. a5 Ke8 29. a6 Kd8 30. a7 Ra8 31. Kb3 Kc7 32. Kc4 Kb6 33. Rb1+ Kc6 34. Re1 e5 35. fxe5 fxe5 36. Rxe5 Kd6 37. Rd5+ Ke6 38. Rxc5 Rxa7 39. Kxd4 Ra2 40. Rg5 Ra1 41. Rh5 Ra7 42. Ke4 Rg7 43. Rh6+ Ke7 44. g3 Kd7 45. d4 1-0

[Event "Joinville open"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "3"]
[White "Zacharias, Douglas"]
[Black "Van Riemsdijk, Dirk Dagobert"]
[Result "0-1"]
[ECO "B16"]
[PlyCount "100"]
[EventDate "1977.05.19"]
[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 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. Nf3 Bg4 7. Be2 Qc7 8. Be3 Nd7 9. Nh4 Bxe2 10. Qxe2 e6 11. a3 0-0-0 12. 0-0 Bd6 13. Nf3 Rhg8 14. Kh1 Kb8 15. c4 c5 16. b4 cxd4 17. Bxd4 Ne5 18. Bxe5 Bxe5 19. Rad1 a6 20. c5 Rxd1 21. Rxd1 Qe7 22. Qd3 f5 23. Qd7 Qxd7 24. Rxd7 Bb2 25. a4 Ba3 26. b5 axb5 27. axb5 Bxc5 28. Kg1 Rc8 29. Kf1 Rc7 30. Ne5 f6 31. Rxc7 Kxc7 32. Nc4 e5 33. f3 Kd7 34. Ke2 Ke6 35. Kd3 Kd5 36. Na5 b6 37. Nc6 Bd6 38. h3 f4 39. Na7 f5 40. Nc8 Bc5 41. Na7 e4+ 42. Ke2 Kc4 43. Nc6 Kxb5 44. Nd8 Kc4 45. Ne6 b5 46. fxe4 fxe4 47. Nxf4 b4 48. Kd1 b3 49. Kd2 Be3+ 50. Kxe3 b2 0-1

[Event "BRA corr"]
[Site "Brazil"]
[Date "1977.??.??"]
[Round "?"]
[White "Kover, Warner Bruce"]
[Black "Zacharias, Douglas"]
[Result "1-0"]
[ECO "C07"]
[PlyCount "46"]
[EventDate "1977.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd6 7. 0-0 Nf6 8. Nb3 Nc6 9. Nbxd4 Nxd4 10. Nxd4 a6 11. Re1 Qc7 12. Qe2 Bc5 13. Nf5 0-0 14. Ng3 b5 15. Bd3 Bb7 16. Nh5 Nxh5 17. Qxh5 g6 18. Qh4 Rfd8 19. Be3 Rd5 20. Bxc5 Rh5 21. Qg3 Qxc5 22. Qe3 Qb4 23. Be2 Rh4 1-0

