[Event "Rio de Janeiro-ch Absoluto"]
[Site "Rio de Janeiro"]
[Date "1980.02.09"]
[Round "10"]
[White "De Mello, Otto C Triebe"]
[Black "Mascarenhas, Alberto Pinheiro"]
[Result "0-1"]
[ECO "B67"]
[PlyCount "64"]
[EventDate "1980.01.18"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nc6 7. Qd2 e6 8. 0-0-0 Bd7 9. Be2 b5 10. f4 b4 11. Nb1 Nxe4 12. Qe3 Nxg5 13. fxg5 Be7 14. h4 Ne5 15. Nd2 0-0 16. Ne4 d5 17. Ng3 Qc7 18. h5 Bd6 19. Kb1 Nc4 20. Bxc4 Bxg3 21. Bd3 Bf4 22. Bxh7+ Kxh7 23. Qd3+ Kg8 24. Nf3 Bb5 25. Qd4 e5 26. Qf2 e4 27. h6 exf3 28. hxg7 Kxg7 29. Rh7+ Kxh7 30. Qh4+ Kg8 31. Rh1 Bh2 32. g3 Qxg3 0-1

[Event "Rio de Janeiro-ch Absoluto"]
[Site "Rio de Janeiro"]
[Date "1980.02.08"]
[Round "9"]
[White "Motta, Arthur Moses"]
[Black "De Mello, Otto C Triebe"]
[Result "1-0"]
[ECO "C11"]
[PlyCount "39"]
[EventDate "1980.01.18"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. Nc3 Nf6 4. e5 Nfd7 5. d4 c5 6. dxc5 Bxc5 7. Bd3 Nc6 8. Bf4 f6 9. exf6 Nxf6 10. 0-0 0-0 11. Qe2 Bd6 12. Bg5 h6 13. Bh4 Qe8 14. Bxf6 Rxf6 15. Nxd5 Rxf3 16. Qxf3 exd5 17. Rfe1 Qf7 18. Bh7+ Kf8 19. Bg6 Ne5 20. Rxe5 1-0

[Event "Rio de Janeiro-ch Absoluto"]
[Site "Rio de Janeiro"]
[Date "1980.02.03"]
[Round "8"]
[White "De Mello, Otto C Triebe"]
[Black "Mangini, Jose Thiago"]
[Result "1/2-1/2"]
[ECO "C80"]
[PlyCount "53"]
[EventDate "1980.01.18"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Be3 Be7 10. a4 Na5 11. Nd4 Qd7 12. axb5 axb5 13. Qe1 Bd8 14. Rxa5 Rxa5 15. Qxa5 c5 16. Qxb5 cxd4 17. Qxd7+ Bxd7 18. Bxd4 Bc6 19. Rd1 Bc7 20. h4 0-0 21. f3 Ng3 22. Re1 Re8 23. Bf2 Nh5 24. Bd4 Nf4 25. g3 Ne6 26. Bf2 g5 27. h5 1/2-1/2

[Event "Rio de Janeiro-ch Absoluto"]
[Site "Rio de Janeiro"]
[Date "1980.02.02"]
[Round "7"]
[White "Barreto, Ignacio C de Barro"]
[Black "De Mello, Otto C Triebe"]
[Result "1-0"]
[ECO "A39"]
[PlyCount "75"]
[EventDate "1980.01.18"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 g6 5. Bg2 Bg7 6. 0-0 0-0 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. Qd3 Rb8 11. Bd2 Bd7 12. Rac1 a6 13. Rfd1 Ng4 14. b3 Qb6 15. e3 Ne5 16. Qe2 Bg4 17. f3 Bf5 18. Nd5 Qd8 19. e4 Be6 20. Bg5 Bxd5 21. Rxd5 h6 22. Be3 Nc6 23. Qd2 b6 24. Bxh6 Kh7 25. Bxg7 Kxg7 26. f4 Qc8 27. b4 a5 28. a3 f6 29. b5 Nd8 30. e5 fxe5 31. fxe5 Nf7 32. exd6 exd6 33. Qd4+ Kh7 34. Rf1 Qe6 35. h3 Ne5 36. Rxf8 Rxf8 37. Rxd6 Nf3+ 38. Bxf3 1-0

[Event "Rio de Janeiro-ch Absoluto"]
[Site "Rio de Janeiro"]
[Date "1980.02.01"]
[Round "6"]
[White "De Mello, Otto C Triebe"]
[Black "Pimenta, Jeronimo Marques"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "70"]
[EventDate "1980.01.18"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. Bxb5 axb5 12. Nxb5 0-0 13. Nxf6+ Qxf6 14. Qxd6 Qxd6 15. Nxd6 Nb4 16. 0-0 Nxc2 17. Rac1 Nd4 18. Rc7 Be6 19. a3 g6 20. Nc4 Bxc4 21. Rxc4 Rfb8 22. b4 Rxa3 23. Rb1 Rb3 24. Rxb3 Nxb3 25. f3 Nd4 26. Kf2 Ra8 27. f4 f6 28. fxe5 fxe5 29. Rc7 Ra2+ 30. Kg3 Rb2 31. Rb7 Nc2 32. b5 Na3 33. b6 Nc4 34. Rb8+ Kg7 35. b7 Nd6 0-1

[Event "Rio de Janeiro-ch Absoluto"]
[Site "Rio de Janeiro"]
[Date "1980.01.27"]
[Round "5"]
[White "De Mello, Otto C Triebe"]
[Black "Machado, Hermes Amilcar"]
[Result "0-1"]
[ECO "B03"]
[PlyCount "92"]
[EventDate "1980.01.18"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Bf5 7. Be3 e6 8. Nc3 Bb4 9. Be2 Qh4+ 10. Bf2 Qe4 11. Kf1 Bxc3 12. bxc3 0-0 13. Bf3 Qd3+ 14. Ne2 Nc6 15. Qxd3 Bxd3 16. c5 Nd5 17. Rc1 Nf4 18. Be3 Bxe2+ 19. Bxe2 Nxe2 20. Kxe2 b6 21. cxb6 axb6 22. Rc2 Ra3 23. Rb1 Rfa8 24. Rbb2 R8a4 25. Bc1 f6 26. exf6 gxf6 27. g3 Rc4 28. Kd2 Raa4 29. Rb5 e5 30. d5 Ne7 31. d6 cxd6 32. Rxb6 Rc6 33. Rb4 Ra7 34. Kd3 Kf7 35. Rh4 Kg6 36. Rh6+ Kg7 37. Rh4 Rca6 38. Rg4+ Kf7 39. a3 Ra4 40. Rxa4 Rxa4 41. c4 f5 42. Kc3 Nc6 43. Kb3 Ra8 44. Bb2 Ke6 45. Rd2 h5 46. Rd5 Na5+ 0-1

[Event "Rio de Janeiro-ch Absoluto"]
[Site "Rio de Janeiro"]
[Date "1980.01.26"]
[Round "4"]
[White "Fernandes, Jose Costa Jr"]
[Black "De Mello, Otto C Triebe"]
[Result "1/2-1/2"]
[ECO "A05"]
[PlyCount "32"]
[EventDate "1980.01.18"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. b3 Nf6 2. Bb2 b6 3. Nf3 Bb7 4. g3 g6 5. Bg2 Bg7 6. 0-0 0-0 7. d3 d6 8. Nbd2 Nbd7 9. c4 e5 10. Qc2 Rb8 11. Rfe1 Ne8 12. b4 f5 13. Rac1 c5 14. b5 a5 15. bxa6 Bxa6 16. Bc3 Nc7 1/2-1/2

[Event "Rio de Janeiro-ch Absoluto"]
[Site "Rio de Janeiro"]
[Date "1980.01.20"]
[Round "3"]
[White "De Mello, Otto C Triebe"]
[Black "Loureiro, Luiz R Vasconcelos"]
[Result "0-1"]
[ECO "B03"]
[PlyCount "64"]
[EventDate "1980.01.18"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nc3 e6 9. Be2 Be7 10. Nf3 0-0 11. 0-0 f6 12. exf6 Bxf6 13. Rc1 Qe7 14. Qb3 a5 15. a3 a4 16. Qd1 Rfd8 17. Qd2 Na5 18. Bd1 Naxc4 19. Qf2 Nd5 20. Nxd5 exd5 21. Re1 Be4 22. Bf4 b5 23. Nd2 Qd7 24. Kh1 Bg6 25. Nf3 Re8 26. Bc2 Bxc2 27. Qxc2 Rxe1+ 28. Rxe1 Re8 29. Rxe8+ Qxe8 30. Bxc7 Qe4 31. Qc1 Bxd4 32. Ng5 Qe3 0-1

[Event "Rio de Janeiro-ch Absoluto"]
[Site "Rio de Janeiro"]
[Date "1980.01.18"]
[Round "1"]
[White "De Mello, Otto C Triebe"]
[Black "Kubrusly, Jose Cristovam"]
[Result "1-0"]
[ECO "C08"]
[PlyCount "53"]
[EventDate "1980.01.18"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Bb5+ Nc6 6. Qe2+ Be7 7. dxc5 Nf6 8. Nb3 0-0 9. Be3 Na5 10. Rd1 Nxb3 11. axb3 a6 12. Bd3 Re8 13. b4 d4 14. c3 dxe3 15. Bxh7+ Kxh7 16. Rxd8 exf2+ 17. Kxf2 Bxd8 18. Qd3+ Ne4+ 19. Kf1 Bf5 20. Nf3 Ng3+ 21. hxg3+ Kg6 22. Qd5 Bf6 23. g4 Bxg4 24. Nh4+ Kh7 25. Qxf7 Bg5 26. Nf3+ Bh6 27. Ng5+ 1-0

[Event "Rio de Janeiro-ch Absoluto"]
[Site "Rio de Janeiro"]
[Date "1980.01.18"]
[Round "2"]
[White "Toth, Peter"]
[Black "De Mello, Otto C Triebe"]
[Result "1-0"]
[ECO "D83"]
[PlyCount "62"]
[EventDate "1980.01.18"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 0-0 6. cxd5 e6 7. dxe6 Bxe6 8. Nf3 c5 9. Be2 Nd5 10. Be5 f6 11. Bg3 Nxc3 12. bxc3 Qa5 13. Qd2 c4 14. e4 b5 15. 0-0 Nd7 16. Bd6 Rfe8 17. Bd1 Qb6 18. Ba3 Rad8 19. Qb2 Qb8 20. h3 a6 21. Re1 Bh6 22. Bb4 Bf7 23. a4 f5 24. e5 bxa4 25. Rxa4 Qb6 26. Qa2 Ra8 27. Be2 Rec8 28. Nd2 Bxd2 29. Qxd2 Qd8 30. Bf3 Nb6 31. Bxa8 Nxa8 1-0

