[Event "Joinville open"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "3"]
[White "Amorim, Dilma"]
[Black "Pereira, Ruy"]
[Result "0-1"]
[ECO "C00"]
[PlyCount "40"]
[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. Nf3 d5 3. Nc3 d4 4. Ne2 c5 5. d3 Nc6 6. c3 e5 7. c4 Bd6 8. Ng3 Nge7 9. Be2 0-0 10. 0-0 f5 11. Bg5 f4 12. Bxe7 Qxe7 13. Nh1 g5 14. h3 Kh8 15. Nd2 Rf6 16. g3 Bxh3 17. Re1 Be6 18. gxf4 gxf4 19. f3 Rg6+ 20. Kf2 Qh4+ 0-1

[Event "Joinville open"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "6"]
[White "Iurk, Jonel Nazareno"]
[Black "Pereira, Ruy"]
[Result "1-0"]
[ECO "B78"]
[PlyCount "41"]
[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 g6 3. d4 Bg7 4. Be3 d6 5. Nc3 Nc6 6. Bc4 cxd4 7. Nxd4 Bd7 8. Qd2 Nf6 9. f3 0-0 10. 0-0-0 Rc8 11. Bb3 a6 12. g4 Qc7 13. h4 h5 14. gxh5 Nxh5 15. Nd5 Qd8 16. Nxc6 Rxc6 17. Bg5 Bf6 18. Bxf6 exf6 19. Qh6 Be6 20. Rdg1 Ng7 21. h5 1-0

[Event "Joinville open"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "2"]
[White "Pereira, Ruy"]
[Black "Loebmann, Martim"]
[Result "1-0"]
[ECO "E87"]
[PlyCount "49"]
[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 d6 5. Bd3 0-0 6. Nge2 e5 7. d5 Nbd7 8. f3 a5 9. Be3 Nc5 10. Bc2 Bd7 11. Qd2 a4 12. Bh6 Ne8 13. Bxg7 Nxg7 14. g4 Qh4+ 15. Ng3 c6 16. 0-0-0 Rfd8 17. Rdf1 cxd5 18. Nxd5 Be6 19. Kb1 Bxd5 20. exd5 Qe7 21. h4 Qd7 22. h5 b5 23. Qh6 f6 24. hxg6 hxg6 25. Bxg6 1-0

[Event "Joinville open"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "4"]
[White "Pereira, Ruy"]
[Black "Pereira, Ernesto Luis De Ass"]
[Result "0-1"]
[ECO "E34"]
[PlyCount "62"]
[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 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 b6 6. Qa4+ Nc6 7. Qxc6+ Bd7 8. Qb7 Ne4 9. Bd2 a5 10. Nxe4 Rb8 11. Qxb8 Qxb8 12. Bxb4 axb4 13. Nd2 0-0 14. Ngf3 f6 15. Be2 Qb7 16. 0-0 Ra8 17. Rfc1 Ra7 18. b3 Be8 19. Ne1 Qa8 20. Rc2 Ra3 21. Rb2 h5 22. Nc2 Ra5 23. Nxb4 dxc4 24. Bf3 Qc8 25. Nxc4 Rb5 26. Nd3 h4 27. a4 Rg5 28. a5 bxa5 29. Rxa5 Rxa5 30. Nxa5 Qa6 31. Nc4 Qa1+ 0-1

[Event "Joinville open"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "7"]
[White "Pereira, Ruy"]
[Black "Pons, Marcel"]
[Result "1-0"]
[ECO "D86"]
[PlyCount "45"]
[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 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Be3 0-0 8. Bc4 c5 9. Ne2 Nc6 10. 0-0 Na5 11. Bd3 cxd4 12. cxd4 Nc6 13. Bc4 a6 14. Rc1 Bd7 15. Qd2 Rc8 16. f3 Na5 17. Bd3 b5 18. Rxc8 Bxc8 19. Rc1 Nb7 20. e5 Na5 21. Rxc8 Qxc8 22. Qxa5 e6 23. a4 1-0

[Event "Joinville open"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "5"]
[White "Pereira, Ruy"]
[Black "Woestehoff, Christian"]
[Result "1-0"]
[ECO "D25"]
[PlyCount "67"]
[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 d5 2. c4 dxc4 3. Nf3 Bf5 4. e3 Nf6 5. Bxc4 e6 6. 0-0 Bb4 7. Qa4+ Nc6 8. Bb5 Qd6 9. a3 Ba5 10. Qxa5 0-0 11. Bxc6 Qxc6 12. Ne5 Qd6 13. Nc3 b6 14. Qa4 a6 15. Qc6 Qxc6 16. Nxc6 Bd3 17. Re1 Nd5 18. Nxd5 exd5 19. Ne7+ Kh8 20. Nxd5 Rac8 21. Nb4 Bc4 22. Bd2 a5 23. Rac1 b5 24. Nc6 a4 25. Bb4 Rfe8 26. Ne5 Bd5 27. Rc5 c6 28. e4 Bc4 29. Nxc4 bxc4 30. Rxc4 h6 31. e5 f6 32. e6 Kh7 33. e7 Rc7 34. Bd6 1-0

[Event "Joinville open"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "1"]
[White "Segal, Alexandru Sorin"]
[Black "Pereira, Ruy"]
[Result "1-0"]
[ECO "E18"]
[PlyCount "47"]
[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 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 0-0 6. 0-0 b6 7. Qc2 Bb7 8. cxd5 exd5 9. Nc3 a6 10. Rd1 Nbd7 11. Bf4 Rc8 12. Rac1 Re8 13. Ne5 Nf8 14. Qa4 Ne6 15. Be3 Qd6 16. Bh3 Bf8 17. Nd3 h6 18. Qb3 Rcd8 19. Nf4 Ng5 20. Bg2 Nge4 21. Nd3 g5 22. Nxe4 dxe4 23. Ne5 Bd5 24. Qc2 1-0

