[Event "Joinville op"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "5"]
[White "Kotzias, Jorge"]
[Black "Pons, Marcel"]
[Result "1-0"]
[ECO "D02"]
[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. Nf3 d5 3. Bf4 g6 4. e3 Bg7 5. Be2 0-0 6. 0-0 Nbd7 7. Nbd2 c5 8. c4 cxd4 9. exd4 dxc4 10. Nxc4 Nb6 11. Nxb6 Qxb6 12. Qd2 Be6 13. Rfe1 Rfd8 14. b3 Rac8 15. Rac1 Ne4 16. Qd3 Bf5 17. Qe3 Bf6 18. g4 Nxf2 19. gxf5 Ng4 20. Qe4 Rxd4 21. Rxc8+ Rd8+ 22. Be3 Qxe3+ 23. Qxe3 1-0

[Event "Joinville op"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "1"]
[White "Mak, Otto"]
[Black "Pons, Marcel"]
[Result "1-0"]
[ECO "D74"]
[PlyCount "75"]
[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 d5 4. Nc3 Bg7 5. g3 0-0 6. Bg2 b6 7. cxd5 Bb7 8. e4 Ba6 9. e5 Nxd5 10. Nxd5 Qxd5 11. Nh4 Qb5 12. Bxa8 c6 13. Qc2 Rd8 14. Be3 Rc8 15. f4 Nd7 16. Bxc6 Rxc6 17. Qd2 e6 18. Kf2 Rc4 19. a3 Qb3 20. Rhc1 Ra4 21. Rc3 Qd5 22. Rc7 Bb7 23. Qd1 b5 24. Rac1 h6 25. Qf3 Qxf3+ 26. Nxf3 Bxf3 27. Rxd7 Bd5 28. Rcc7 Rc4 29. Rxf7 Rxc7 30. Rxc7 a5 31. Bd2 a4 32. Bb4 h5 33. Ke3 Bh6 34. h4 Bg7 35. Kd3 Bh6 36. Be7 Bg7 37. Kc3 Bc4 38. Rxc4 1-0

[Event "Joinville op"]
[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 op"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "3"]
[White "Polansky, Eva Elizabeth"]
[Black "Pons, Marcel"]
[Result "0-1"]
[ECO "D02"]
[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. Nf3 Nf6 2. g3 d5 3. Bg2 g6 4. 0-0 Bg7 5. c3 0-0 6. d4 Nbd7 7. Nbd2 Nb6 8. b3 Bd7 9. a4 Rc8 10. e3 c5 11. Nb1 cxd4 12. exd4 Ne4 13. Qe2 Nxc3 14. Qe3 Ne4 15. Ng5 Nxg5 16. Qxg5 Bxd4 17. Ra2 Bf5 18. Nd2 Rc7 19. Nf3 Bf6 20. Qh6 Bg7 21. Qg5 h6 22. Qf4 Bc2 23. Ne5 Bxb3 24. Ra3 Bxa4 25. Be3 Qd6 26. Rd3 Bxe5 0-1

[Event "Joinville op"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "4"]
[White "Pons, Marcel"]
[Black "Caringi, Leonardo"]
[Result "1-0"]
[ECO "E60"]
[PlyCount "95"]
[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. c4 c5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. d4 cxd4 7. Nxd4 Nc6 8. Nf3 Qc7 9. Nc3 a6 10. Qd2 e6 11. Rd1 Ne7 12. Rb1 Qxc4 13. b3 Qc7 14. Ba3 Re8 15. Rbc1 Nc6 16. Nd4 Nxd4 17. Qxd4 Qd8 18. Na4 d5 19. Bb2 e5 20. Qb6 e4 21. Qxd8 Rxd8 22. Nb6 Rb8 23. Be5 Bg4 24. Bxb8 Rxb8 25. f3 Be6 26. fxe4 dxe4 27. Nc4 Bg4 28. Rc2 Rc8 29. Rdd2 Bh6 30. e3 b5 31. Nd6 Bxe3+ 32. Kf1 Rd8 33. Nxe4 Bxd2 34. Nxf6+ Kg7 35. Nxg4 f5 36. Ne5 Kf6 37. Nf3 Be3 38. Rc6+ Kg7 39. Rxa6 g5 40. h3 h5 41. Ra5 g4 42. hxg4 fxg4 43. Nh4 Rf8+ 44. Ke2 Bf2 45. Rxb5 Kg8 46. Rxh5 Bxg3 47. Bd5+ Kg7 48. Nf5+ 1-0

[Event "Joinville op"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "6"]
[White "Pons, Marcel"]
[Black "Eing, Silvino"]
[Result "1-0"]
[ECO "E65"]
[PlyCount "31"]
[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. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 d6 6. 0-0 c5 7. d4 cxd4 8. Nxd4 Qb6 9. Be3 a6 10. Ne6 Qxb2 11. Na4 Qb4 12. Nxf8 Kxf8 13. Nb6 Ng4 14. Rb1 Nxe3 15. Rxb4 Nxd1 16. Rxd1 1-0

[Event "Joinville op"]
[Site "Joinville"]
[Date "1977.05.??"]
[Round "2"]
[White "Pons, Marcel"]
[Black "Rocha, Joao Cesar Mattos"]
[Result "0-1"]
[ECO "A34"]
[PlyCount "97"]
[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. c4 e6 2. Nc3 b6 3. Nf3 Bb7 4. e4 c5 5. d4 cxd4 6. Nxd4 a6 7. Be3 Bb4 8. Bd3 f5 9. f3 Bxc3+ 10. bxc3 fxe4 11. fxe4 Nf6 12. Bg5 h6 13. Bxf6 Qxf6 14. Rf1 Qh4+ 15. g3 Qxh2 16. Qf3 Kd8 17. Ne2 Nc6 18. Rh1 Ne5 19. Qf1 Nxd3+ 20. Kd2 Qf2 21. Kxd3 Qc5 22. Qf7 Rf8 23. Qxg7 Rf3+ 24. Kd2 Qe3+ 25. Ke1 Qxe4 26. Rxh6 Re3 27. Rh2 Qxc4 28. Qg5+ Kc7 29. Qxe3 Rf8 30. Rf2 Rg8 31. Qf4+ Qxf4 32. Rxf4 a5 33. Rb1 Ba6 34. g4 e5 35. Re4 Bd3 36. Rxb6 Bxe4 37. Rb5 d6 38. Rxa5 Rxg4 39. Ra4 d5 40. Rb4 Rg6 41. Kd2 Ra6 42. a4 Kc6 43. Ng3 Bg6 44. Nf1 Be8 45. Ne3 Kc5 46. Rb8 Bxa4 47. Rf8 Bd7 48. Nf5 Ra2+ 49. Ke1 0-1

