[Event "Cearense-ch 49th"]
[Site "Fortaleza"]
[Date "1980.06.??"]
[Round "4"]
[White "Barros Filho, Paulo Cesar"]
[Black "Oliveira, Omar"]
[Result "0-1"]
[ECO "B06"]
[PlyCount "116"]
[EventDate "1980.06.10"]
[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 g6 2. e4 Bg7 3. d4 c6 4. c4 e6 5. Nc3 d5 6. e5 dxc4 7. Bxc4 Nd7 8. 0-0 Nb6 9. Bb3 Nd5 10. Bg5 Qa5 11. Rc1 Nge7 12. Ne4 0-0 13. Rc5 Qb6 14. Qd2 f6 15. Bh6 fxe5 16. Bxg7 Kxg7 17. Nxe5 Qd8 18. Rfc1 Nf5 19. Bc2 Nf6 20. Nf3 Nd5 21. Neg5 h6 22. Ne4 Bd7 23. Bb1 Be8 24. Re1 Bf7 25. Ra5 Bg8 26. Ra3 Qe7 27. Ne5 g5 28. Nc5 Qd6 29. Nxb7 Qc7 30. Nc5 Rad8 31. Nf3 Rf6 32. Ne5 Nf4 33. Re4 Nxd4 34. Qe3 Nb5 35. Rd3 Nxd3 36. Nexd3 Rb8 37. Re5 Nd6 38. g4 Nc4 39. Qd4 Nxe5 40. Nxe5 Rf4 41. Qc3 Qd6 42. Ne4 Qd5 43. Nd3+ e5 44. Nxf4 gxf4 45. Bc2 Rb7 46. Nd2 c5 47. Be4 Qd4 48. Qc2 Rd7 49. Nf1 Bd5 50. Bh7 e4 51. Bf5 Re7 52. Qe2 c4 53. g5 hxg5 54. Qh5 Qf6 55. Qg4 Qh6 56. Nd2 e3 57. fxe3 fxe3 58. Qd4+ Qf6 0-1

[Event "Cearense-ch 49th"]
[Site "Fortaleza"]
[Date "1980.06.??"]
[Round "1"]
[White "Lima, Paulo Roberto"]
[Black "Oliveira, Omar"]
[Result "1-0"]
[ECO "B30"]
[PlyCount "87"]
[EventDate "1980.06.10"]
[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 e6 4. Nc3 Nc6 5. 0-0 Be7 6. Re1 Bf6 7. a3 Nge7 8. Ne2 0-0 9. c3 Ng6 10. d4 cxd4 11. cxd4 Qc7 12. Qc2 e5 13. d5 Nd8 14. Be3 b6 15. Rac1 Nb7 16. Bb5 Qxc2 17. Rxc2 Nc5 18. Bc6 Rb8 19. Rd1 Nxe4 20. h3 Bf5 21. Rc4 Nc5 22. Nc3 Rfd8 23. Ne1 Nf8 24. h4 h6 25. f3 Nh7 26. Bf2 g5 27. h5 Bc8 28. b4 Nb3 29. g4 a6 30. Ne4 Be7 31. Nc2 f5 32. gxf5 Bxf5 33. Rc3 Nd4 34. Nxd4 exd4 35. Bxd4 Rf8 36. Kg2 Nf6 37. Ng3 Bh7 38. Re1 Bd8 39. Re6 Kf7 40. Rce3 Bg8 41. Rxd6 Bh7 42. Nf5 Rh8 43. Kf2 Bg8 44. Ree6 1-0

[Event "Cearense-ch 49th"]
[Site "Fortaleza"]
[Date "1980.06.??"]
[Round "2"]
[White "Oliveira, Omar"]
[Black "Almeida Filho, Odilo"]
[Result "1-0"]
[ECO "A34"]
[PlyCount "99"]
[EventDate "1980.06.10"]
[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. e4 d6 4. f4 Bg7 5. Nf3 c5 6. d3 Nc6 7. Be2 0-0 8. 0-0 e6 9. Kh1 d5 10. e5 Ne8 11. Qe1 dxc4 12. dxc4 b6 13. Be3 Bb7 14. Rd1 Qe7 15. Nb5 f6 16. Qh4 a6 17. Nc3 Rf7 18. Qg3 fxe5 19. Nxe5 Nxe5 20. fxe5 Rf5 21. Rxf5 gxf5 22. Bh6 Kh8 23. Bf4 Rd8 24. Rd3 Rxd3 25. Bxd3 Bc6 26. a4 Qd7 27. Bc2 Qd4 28. b3 Be4 29. Bxe4 fxe4 30. Qe3 Qxe3 31. Bxe3 Bxe5 32. Nxe4 Nf6 33. Ng5 Bd4 34. Bxd4 cxd4 35. Kg1 e5 36. Nf7+ Kg7 37. Nxe5 Kf8 38. Kf1 Ke7 39. Nc6+ Kd6 40. Nxd4 Kc5 41. Nc2 Ne4 42. Ke2 a5 43. h3 Nd6 44. g4 Nxc4 45. bxc4 Kxc4 46. h4 Kb3 47. Nd4+ Kxa4 48. Kd2 Kb4 49. g5 Kc5 50. Ne6+ 1-0

[Event "Cearense-ch 49th"]
[Site "Fortaleza"]
[Date "1980.06.??"]
[Round "3"]
[White "Oliveira, Omar"]
[Black "Mendes Jr, Jose"]
[Result "0-1"]
[ECO "E65"]
[PlyCount "80"]
[EventDate "1980.06.10"]
[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. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. c4 Nbd7 7. Nc3 c5 8. e3 Nb6 9. b3 cxd4 10. exd4 Bd7 11. Bb2 d5 12. c5 Nc8 13. Ne5 Bc6 14. Re1 e6 15. b4 a6 16. a4 Qe8 17. Qd3 Na7 18. Bc1 Nd7 19. f4 f6 20. Nf3 b6 21. Bh3 f5 22. Ng5 bxc5 23. bxc5 Rf6 24. Bg2 h6 25. Nh3 Qc8 26. Bd2 Bb7 27. Reb1 Nc6 28. a5 Rf7 29. Ne2 Qc7 30. Bc3 Na7 31. Rb6 Nb5 32. Rxe6 Nxc5 33. dxc5 Qxc5+ 34. Re3 Re7 35. Be5 Bxe5 36. Rc1 Bc3 37. Rxc3 Nxc3 38. Nd4 Rxe3 39. Qxe3 Qxd4 40. Qxd4 Ne2+ 0-1

[Event "Cearense-ch 49th"]
[Site "Fortaleza"]
[Date "1980.06.??"]
[Round "5"]
[White "Soares, Manoel"]
[Black "Oliveira, Omar"]
[Result "1-0"]
[ECO "D79"]
[PlyCount "81"]
[EventDate "1980.06.10"]
[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. g3 c6 5. Bg2 d5 6. cxd5 cxd5 7. Nc3 0-0 8. 0-0 Nc6 9. Bf4 Nh5 10. Ne5 Nxf4 11. gxf4 e6 12. Rc1 Bd7 13. Na4 Nxe5 14. fxe5 b6 15. Nc3 Rc8 16. Qd3 Rc7 17. e4 dxe4 18. Nxe4 Bc8 19. Qe3 Qe7 20. Rxc7 Qxc7 21. Nf6+ Kh8 22. Qh3 h6 23. Qe3 Qe7 24. Ne4 Ba6 25. Rc1 Rc8 26. Rxc8+ Bxc8 27. Nd6 Ba6 28. b4 Qc7 29. b5 Bc8 30. Qf3 Qc1+ 31. Bf1 Bd7 32. Qxf7 Qg5+ 33. Kh1 Qc1 34. Kg2 Qg5+ 35. Kf3 Qh5+ 36. Ke3 Qg5+ 37. Kd3 Bxb5+ 38. Nxb5 Qc1 39. Qe8+ Kh7 40. Be2 Qb1+ 41. Ke3 1-0

