[Event "Catarinense-ch 23th"]
[Site "Joinville"]
[Date "1977.11.??"]
[Round "4"]
[White "De Haro, Martim Alfonso"]
[Black "Petermann, Ronaldo"]
[Result "1/2-1/2"]
[ECO "A73"]
[PlyCount "80"]
[EventDate "1977.11.14"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 d6 5. Nf3 Bg7 6. e4 0-0 7. Be2 e6 8. 0-0 exd5 9. cxd5 b6 10. Bf4 Na6 11. Nd2 Nc7 12. a4 Nfe8 13. Nc4 Ba6 14. Ne3 Bxe2 15. Qxe2 a6 16. Rfd1 Nf6 17. Nc4 Nce8 18. h3 Nh5 19. Bh2 Bh6 20. e5 dxe5 21. Qxe5 Bg7 22. Qe1 Bh6 23. d6 Nef6 24. Nd5 Nxd5 25. Rxd5 Nf4 26. Bxf4 Bxf4 27. g3 Bh6 28. d7 Ra7 29. Rad1 Bg7 30. Nxb6 Bxb2 31. a5 Bd4 32. Qe2 Qc7 33. Kg2 Rd8 34. Re1 Kg7 35. Qe8 Bf6 36. Qe4 Qc6 37. Kh2 c4 38. Qxc4 Qxc4 39. Nxc4 Raxd7 40. Rxd7 Rxd7 1/2-1/2

[Event "Catarinense-ch 23th"]
[Site "Joinville"]
[Date "1977.11.??"]
[Round "2"]
[White "Kotzias, Jorge"]
[Black "Petermann, Ronaldo"]
[Result "1-0"]
[ECO "D03"]
[PlyCount "69"]
[EventDate "1977.11.14"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. Bg5 Ne4 4. Bf4 d5 5. c3 Nc6 6. Nbd2 cxd4 7. cxd4 Qa5 8. h3 Bf5 9. g4 Bg6 10. Bg2 e6 11. 0-0 Bd6 12. Bxd6 Nxd6 13. Nb3 Qd8 14. Nc5 Rb8 15. Rc1 0-0 16. Qa4 b5 17. Qd1 Rb6 18. b3 Qe7 19. e3 Rd8 20. h4 h6 21. g5 hxg5 22. Nxg5 Nf5 23. Qg4 Nh6 24. Qg3 Bh5 25. Bh3 e5 26. dxe5 Nxe5 27. f4 Neg4 28. e4 dxe4 29. Ncxe4 Nf5 30. Qc3 Nd4 31. Rce1 Rc6 32. Qd3 Qc7 33. Bxg4 Bxg4 34. Nf6+ Kf8 35. Ngh7# 1-0

[Event "Catarinense-ch 23th"]
[Site "Joinville"]
[Date "1977.11.??"]
[Round "9"]
[White "Kracik Filho, Carlos"]
[Black "Petermann, Ronaldo"]
[Result "0-1"]
[ECO "A45"]
[PlyCount "78"]
[EventDate "1977.11.14"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. f4 g6 3. Nf3 Bg7 4. e3 d6 5. Bd3 0-0 6. 0-0 e6 7. Bd2 Nc6 8. Be1 Ne7 9. Bh4 Nf5 10. Bxf6 Bxf6 11. Qe2 c5 12. c3 Ne7 13. Nbd2 Bg7 14. Nc4 Nc6 15. Rac1 Qc7 16. Qe1 b5 17. Ncd2 Rb8 18. Qh4 Qe7 19. Ng5 h6 20. Ndf3 f5 21. Kf2 hxg5 22. Nxg5 Bf6 23. Qh6 Qg7 24. Qxg7+ Kxg7 25. h4 Rh8 26. Rh1 c4 27. Be2 d5 28. g4 Bxg5 29. fxg5 fxg4 30. Bxg4 Ne7 31. h5 gxh5 32. Bxh5 Bd7 33. g6 Rbf8+ 34. Kg3 Nf5+ 35. Kf4 Nxd4+ 36. Kg5 Rf5+ 37. Kg4 e5 38. exd4 Rfxh5+ 39. Kg3 Rxh1 0-1

[Event "Catarinense-ch 23th"]
[Site "Joinville"]
[Date "1977.11.??"]
[Round "3"]
[White "Petermann, Ronaldo"]
[Black "Hass, Johnny"]
[Result "1-0"]
[ECO "E14"]
[PlyCount "51"]
[EventDate "1977.11.14"]
[EventType "tourn"]
[EventRounds "9"]
[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 b6 4. e3 Bb4+ 5. Nbd2 Bb7 6. Bd3 0-0 7. 0-0 d5 8. a3 Bd6 9. Qc2 Nbd7 10. e4 dxe4 11. Nxe4 Nxe4 12. Bxe4 Bxe4 13. Qxe4 Nf6 14. Qc2 h6 15. Rd1 Qe7 16. b4 c5 17. dxc5 bxc5 18. b5 Nh5 19. Bb2 Nf4 20. Qe4 f6 21. Re1 e5 22. Nh4 Qe6 23. Qxf4 g5 24. Qf5 Qxc4 25. Qg6+ Kh8 26. Nf5 1-0

[Event "Catarinense-ch 23th"]
[Site "Joinville"]
[Date "1977.11.??"]
[Round "7"]
[White "Petermann, Ronaldo"]
[Black "Russowsky, Miguel"]
[Result "1/2-1/2"]
[ECO "D11"]
[PlyCount "44"]
[EventDate "1977.11.14"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 d5 3. Bg2 c6 4. Nf3 Bf5 5. 0-0 h6 6. c4 e6 7. Nc3 Nbd7 8. Re1 Be7 9. Nd2 0-0 10. e4 dxe4 11. Ndxe4 Nxe4 12. Nxe4 Nf6 13. Nxf6+ Bxf6 14. Be3 Qb6 15. g4 Bg6 16. Re2 Rad8 17. Rd2 Bg5 18. Qe2 Bxe3 19. Qxe3 Rd7 20. Rad1 Rfd8 21. a3 a5 22. h4 h5 1/2-1/2

[Event "Catarinense-ch 23th"]
[Site "Joinville"]
[Date "1977.11.??"]
[Round "5"]
[White "Petermann, Ronaldo"]
[Black "Schroeder, Edson Paulo"]
[Result "1-0"]
[ECO "D34"]
[PlyCount "27"]
[EventDate "1977.11.14"]
[EventType "tourn"]
[EventRounds "9"]
[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. Nf3 c5 5. cxd5 exd5 6. g3 Nc6 7. Bg2 Be7 8. 0-0 Be6 9. dxc5 Qa5 10. Na4 Ne4 11. Be3 Nxc5 12. Nxc5 Bxc5 13. Nd4 0-0 14. Nb3 1-0

[Event "Catarinense-ch 23th"]
[Site "Joinville"]
[Date "1977.11.??"]
[Round "1"]
[White "Petermann, Ronaldo"]
[Black "Warmling, Arno"]
[Result "1-0"]
[ECO "A42"]
[PlyCount "65"]
[EventDate "1977.11.14"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 g6 2. c4 d6 3. Nc3 Bg7 4. e4 Nc6 5. d5 Ne5 6. Be2 Nf6 7. Nf3 Nxf3+ 8. gxf3 e5 9. f4 Nd7 10. h4 Bh6 11. fxe5 Bxc1 12. Qxc1 Nxe5 13. Qe3 f6 14. 0-0-0 b6 15. h5 g5 16. f4 gxf4 17. Qxf4 h6 18. Rhg1 Qe7 19. Rdf1 Rf8 20. Qxh6 Bd7 21. Rg7 Rf7 22. Rg8+ Rf8 23. Rxf8+ Qxf8 24. Qxf6 Qxf6 25. Rxf6 0-0-0 26. Nd1 Rh8 27. Ne3 Kd8 28. Rf4 Ke7 29. b3 Be8 30. Nf5+ Kd8 31. Ng7 Rxh5 32. Nxh5 Bxh5 33. Kd2 1-0

[Event "Catarinense-ch 23th"]
[Site "Joinville"]
[Date "1977.11.??"]
[Round "6"]
[White "Rosa de Andrade, Ledio"]
[Black "Petermann, Ronaldo"]
[Result "1/2-1/2"]
[ECO "B86"]
[PlyCount "52"]
[EventDate "1977.11.14"]
[EventType "tourn"]
[EventRounds "9"]
[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. Bc4 e6 7. a3 Be7 8. 0-0 0-0 9. Ba2 Qc7 10. f4 b5 11. f5 e5 12. Nde2 Bb7 13. Ng3 Nbd7 14. Be3 Nb6 15. Bxb6 Qxb6+ 16. Kh1 b4 17. Nd5 Bxd5 18. Bxd5 Nxd5 19. exd5 Rfc8 20. Qg4 Qd4 21. Qxd4 exd4 22. Rf2 Bg5 23. Ne4 Be3 24. Re2 bxa3 25. bxa3 Rab8 26. g4 Bf4 1/2-1/2

[Event "Joinville op"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "6"]
[White "Chuchene Silva, Jurandir"]
[Black "Petermann, Ronaldo"]
[Result "0-1"]
[ECO "B95"]
[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. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Be2 Be7 8. 0-0 Qc7 9. Re1 Nbd7 10. a4 0-0 11. Qd2 Ne5 12. b3 h6 13. Bh4 Nxe4 14. Nxe4 Bxh4 15. Nf3 Nxf3+ 16. Bxf3 d5 17. Ng3 Bf6 18. Nh5 Bxa1 19. Rxa1 Bd7 20. Re1 Rac8 21. Bd1 Qc3 22. Qe2 Qd4 23. Qf3 Rc3 24. Re3 Rfc8 25. Ng3 Rxe3 26. fxe3 Qd2 27. h4 Rc3 28. Nf1 Qe1 29. Kh2 Qxh4+ 30. Kg1 Qe1 31. Kh2 d4 0-1

[Event "Joinville op"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "3"]
[White "Mercadante, Ricardo Rodrigues"]
[Black "Petermann, Ronaldo"]
[Result "1/2-1/2"]
[ECO "A78"]
[PlyCount "64"]
[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. Nf3 Nf6 2. d4 g6 3. c4 c5 4. d5 d6 5. Nc3 Bg7 6. e4 0-0 7. Be2 e6 8. 0-0 exd5 9. cxd5 Re8 10. Nd2 Na6 11. a4 Nb4 12. f3 Nh5 13. Nc4 f5 14. g4 fxg4 15. fxg4 Nf6 16. Bf3 Rf8 17. Bg5 a6 18. a5 Qc7 19. Bf4 Ne8 20. Qd2 Bd7 21. Rae1 Bb5 22. Nb6 Rd8 23. Nxb5 axb5 24. Bg5 Bf6 25. Bxf6 Nxf6 26. g5 Nd7 27. Bg4 Ne5 28. Be6+ Kh8 29. Qc3 Qg7 30. Qh3 Nbd3 31. Rxf8+ Rxf8 32. Rf1 Qe7 1/2-1/2

[Event "Joinville op"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "2"]
[White "Petermann, Ronaldo"]
[Black "Bronstein, Luis Marcos"]
[Result "0-1"]
[ECO "E97"]
[BlackElo "2385"]
[PlyCount "86"]
[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. Nf3 g6 3. c4 Bg7 4. Nc3 0-0 5. e4 d6 6. Be2 e5 7. 0-0 Nc6 8. dxe5 dxe5 9. Qxd8 Rxd8 10. Bg5 Rd7 11. Rfd1 Ne8 12. c5 Rxd1+ 13. Rxd1 Be6 14. Nd5 h6 15. Bh4 f5 16. exf5 gxf5 17. Bc4 Kf7 18. Ne3 Bxc4 19. Nxc4 e4 20. Nfd2 Nf6 21. Nb3 Ke6 22. Kf1 Nd5 23. Re1 Ncb4 24. g4 Nd3 25. Re2 b5 26. cxb6 axb6 27. a3 N5f4 28. gxf5+ Kxf5 29. Ne3+ Ke6 30. Rc2 Bxb2 31. Rxc7 Kd6 32. Rh7 Kc6 33. Nc4 Kb5 34. Nxb2 Nxb2 35. Be7 Kc4 36. Nd2+ Kd3 37. Bb4 Rd8 38. Re7 Nd5 39. Rxe4 Nxb4 40. Rxb4 Nd1 41. Ke1 Nc3 42. Nf3 Kc2 43. Ne5 Rd1# 0-1

[Event "Joinville op"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "7"]
[White "Petermann, Ronaldo"]
[Black "Resende, Antonio Carlos"]
[Result "0-1"]
[ECO "A42"]
[PlyCount "93"]
[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 g6 2. c4 Bg7 3. Nc3 d6 4. e4 Nc6 5. Nf3 e5 6. dxe5 Nxe5 7. Nxe5 Bxe5 8. Be3 Nf6 9. f3 0-0 10. Qd2 Re8 11. 0-0-0 Be6 12. Bg5 c6 13. Kb1 Qa5 14. Bxf6 Bxf6 15. Nd5 Qd8 16. Nxf6+ Qxf6 17. Qd4 Qxd4 18. Rxd4 Red8 19. Be2 Kf8 20. Rhd1 Ke7 21. b3 f6 22. f4 a6 23. Bf3 Rab8 24. Rc1 c5 25. Rd2 b5 26. Be2 Rb6 27. Kc2 Rdb8 28. Kd1 Rd8 29. Ke1 Rd7 30. Kf2 Rc7 31. Ke3 b4 32. Bf3 a5 33. Bd1 Ra7 34. h3 Bd7 35. Rb1 Be8 36. g4 a4 37. h4 axb3 38. axb3 Ra3 39. Kf2 Bf7 40. Be2 Rba6 41. g5 Be6 42. gxf6+ Kxf6 43. Bf3 Ke7 44. h5 Ra1 45. Rbb2 R6a3 46. hxg6 hxg6 47. Re2 0-1

[Event "Joinville op"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "5"]
[White "Petermann, Ronaldo"]
[Black "Rocha, Joao Cesar Mattos"]
[Result "1/2-1/2"]
[ECO "A40"]
[PlyCount "57"]
[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 e6 2. c4 b6 3. Nc3 Bb7 4. e4 Bb4 5. Bd3 f5 6. Qe2 Nf6 7. Bg5 Bxc3+ 8. bxc3 fxe4 9. Bxf6 Qxf6 10. Bxe4 Bxe4 11. Qxe4 Nc6 12. Nf3 0-0 13. 0-0 Qf4 14. Rfe1 Qxe4 15. Rxe4 Rf5 16. Rd1 Na5 17. d5 exd5 18. cxd5 Nb7 19. Re7 Nc5 20. d6 c6 21. Ne5 Rd8 22. Rd4 Rf6 23. f3 Re6 24. Kf1 Re8 25. Nxd7 R6xe7 26. dxe7 Ne6 27. Rd6 Rxe7 28. Ne5 Nf8 29. Nxc6 1/2-1/2

[Event "Joinville op"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "4"]
[White "Petermann, Ronaldo"]
[Black "Zardo, Roberto"]
[Result "1-0"]
[ECO "E91"]
[PlyCount "63"]
[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. Be2 Nbd7 6. Nf3 c5 7. d5 0-0 8. 0-0 Nb6 9. Nd2 Ne8 10. a4 f5 11. a5 Nd7 12. f4 fxe4 13. Ndxe4 Ndf6 14. Ng5 Nc7 15. Bd3 Ng4 16. Qe2 Nh6 17. Ne6 Bxe6 18. dxe6 Rf6 19. Qf3 Kh8 20. Nd5 Rxe6 21. g4 Nf7 22. Kg2 Nxd5 23. cxd5 Rf6 24. Qe2 g5 25. Qe4 Rg6 26. fxg5 Ne5 27. h4 Bf8 28. Bd2 Qd7 29. Rf4 e6 30. Bc3 exd5 31. Qxd5 Rg8 32. Bxe5+ 1-0

[Event "Joinville op"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "1"]
[White "Sato, Albertina"]
[Black "Petermann, Ronaldo"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "52"]
[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. Bc4 Nf6 4. d3 Nc6 5. Be3 e6 6. Nbd2 Be7 7. 0-0 0-0 8. c3 Ne5 9. Nxe5 dxe5 10. Nf3 Qc7 11. h3 Rd8 12. Qc2 Bd7 13. Nd2 b5 14. Bb3 Nh5 15. Rfd1 Nf4 16. d4 c4 17. Nf3 cxb3 18. axb3 exd4 19. Rxd4 Bc5 20. Bxf4 Qxf4 21. Rd3 Bc6 22. b4 Bxe4 23. Ne1 Bxf2+ 24. Qxf2 Qxf2+ 25. Kxf2 Bxd3 26. Nxd3 Rxd3 0-1

