[Event "Rio de Janeiro op 2nd"]
[Site "Rio de Janeiro"]
[Date "2023.05.05"]
[Round "7"]
[White "Duarte Napoles, Fanny"]
[Black "Costamilan, Gerson Bazo"]
[Result "1-0"]
[ECO "A18"]
[WhiteElo "2204"]
[PlyCount "43"]
[EventDate "2023.05.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. Nf3 c5 8. Bd3 Bd7 9. Be4 Bc6 10. Qe2 Bd6 11. d4 Bxe4 12. Qxe4 Nc6 13. Rb1 Rb8 14. Rxb7 Rc8 15. 0-0 0-0 16. Rd7 Bb8 17. Ba3 Na5 18. Bxc5 Rfe8 19. Bxa7 Nxc4 20. Bxb8 Rxb8 21. h4 Ra8 22. Ng5 1-0

[Event "Rio de Janeiro op 2nd"]
[Site "Rio de Janeiro"]
[Date "2023.05.04"]
[Round "5"]
[White "Costamilan, Gerson Bazo"]
[Black "Moritani, Sho"]
[Result "1-0"]
[ECO "B25"]
[BlackElo "1852"]
[PlyCount "85"]
[EventDate "2023.05.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. g3 e6 6. Bg2 d6 7. 0-0 Nge7 8. d3 0-0 9. Ne2 f5 10. c3 Qb6 11. Qb3 Qa6 12. Qc2 Bd7 13. Be3 Rac8 14. h3 Kh8 15. Kh2 c4 16. d4 fxe4 17. Qxe4 Nf5 18. Bf2 Rce8 19. g4 Nh6 20. Qc2 Ne7 21. Ng5 Nf7 22. Ne4 Bc6 23. Bh4 Bxe4 24. Bxe4 d5 25. Bg2 Nd6 26. Rae1 Bf6 27. Bg3 Qc6 28. Ng1 Qd7 29. Qe2 Nc6 30. Rf3 Bg7 31. Re3 Nd8 32. h4 Qf7 33. Nh3 Bh6 34. Ng5 Bxg5 35. fxg5 Qd7 36. Be5+ Kg8 37. Bf6 Qc7 38. Kh3 Rxf6 39. gxf6 Rf8 40. Rxe6 Ne4 41. Bxe4 Nxe6 42. Bxd5 Rxf6 43. Bxe6+ 1-0

[Event "Rio de Janeiro op 2nd"]
[Site "Rio de Janeiro"]
[Date "2023.05.04"]
[Round "4"]
[White "Esquivel, Hugo Carlos Rosa"]
[Black "Costamilan, Gerson Bazo"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "1652"]
[PlyCount "88"]
[EventDate "2023.05.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 0-0 7. Nc3 d6 8. e4 e5 9. dxe5 dxe5 10. Nd5 Nxd5 11. cxd5 Bg4 12. Be2 c6 13. d6 Qf6 14. 0-0 Nd7 15. Rac1 Rfd8 16. Rfd1 Nf8 17. h3 Bxf3 18. Bxf3 Ne6 19. Qb4 Rab8 20. Rc4 Nd4 21. Rcxd4 exd4 22. Qxd4 Qxd4 23. Rxd4 f6 24. Bg4 Kf7 25. f4 Re8 26. d7 Rf8 27. Kf2 Ke7 28. Ke3 g6 29. Ra4 f5 30. Be2 fxe4 31. Rxa7 Kxd7 32. Kxe4 Rbe8+ 33. Kf3 Kc7 34. g4 Rd8 35. Ra4 Rd2 36. b3 Re8 37. Bc4 b5 38. Bf7 bxa4 39. Bxe8 axb3 40. Bf7 b2 41. Ba2 Rd1 42. f5 gxf5 43. gxf5 Ra1 44. f6 Rxa2 0-1

[Event "Rio de Janeiro op 2nd"]
[Site "Rio de Janeiro"]
[Date "2023.05.03"]
[Round "3"]
[White "Costamilan, Gerson Bazo"]
[Black "Deus Filho, Joaquim"]
[Result "0-1"]
[ECO "C40"]
[BlackElo "1880"]
[PlyCount "114"]
[EventDate "2023.05.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 f5 3. d4 fxe4 4. Nxe5 Nf6 5. Be2 d6 6. Nc4 Be7 7. 0-0 0-0 8. Ne3 d5 9. b3 c6 10. c4 Be6 11. Nc3 a6 12. f4 Nbd7 13. f5 Bf7 14. g4 h6 15. Qe1 b5 16. c5 Nh7 17. Ng2 Bf6 18. Be3 Qa5 19. Rc1 Rfe8 20. Nf4 Qd8 21. b4 a5 22. a3 axb4 23. axb4 Ra3 24. Ra1 Qa8 25. Qc1 Ra7 26. Qb2 Ng5 27. Rxa7 Qxa7 28. Ra1 Qc7 29. Nd1 Nf3+ 30. Bxf3 exf3 31. Nh3 Re4 32. Nhf2 Re8 33. Qd2 Bg5 34. Bxg5 hxg5 35. Nc3 Nf6 36. Re1 Rxe1+ 37. Qxe1 Qf4 38. Qe5 Qc1+ 39. Ncd1 Ne4 40. Qe7 Nxf2 41. Kxf2 Qxd1 42. Qe3 Qc2+ 43. Kxf3 Qxh2 44. Qxg5 Qh1+ 45. Kf2 Qe4 46. Kg3 Qe1+ 47. Kg2 Qe2+ 48. Kg3 Qe8 49. f6 Bg6 50. Qf4 Qe1+ 51. Kh2 Qh4+ 52. Kg1 Qxf6 53. Qb8+ Kf7 54. Qc7+ Kf8 55. Qb8+ Be8 56. Kg2 Qe6 57. Qf4+ Kg8 0-1

[Event "Rio de Janeiro op 2nd"]
[Site "Rio de Janeiro"]
[Date "2023.05.03"]
[Round "2"]
[White "Da Silva, Paolo Ghiu M Rego"]
[Black "Costamilan, Gerson Bazo"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "2149"]
[PlyCount "61"]
[EventDate "2023.05.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 0-0 5. e3 d6 6. a3 Bxd2+ 7. Bxd2 Ne4 8. Bd3 Nxd2 9. Qxd2 Nd7 10. 0-0 b6 11. e4 e5 12. d5 Nc5 13. Bc2 f5 14. exf5 Bxf5 15. b4 Ne4 16. Qe3 Ng3 17. hxg3 Bxc2 18. Rac1 Bf5 19. c5 Qe7 20. cxd6 cxd6 21. Nd4 Bd7 22. Nc6 Bxc6 23. Rxc6 Rac8 24. b5 Rxc6 25. bxc6 Qf7 26. Qe4 g6 27. f4 Qe7 28. fxe5 dxe5 29. Rxf8+ Kxf8 30. Qb4 Ke8 31. d6 1-0

[Event "Gauchos-ch 38th"]
[Site "Santa Rosa"]
[Date "1982.03.??"]
[Round "5"]
[White "Becker, Rogerio Sperb"]
[Black "Costamilan, Gerson Bazo"]
[Result "1-0"]
[ECO "E10"]
[PlyCount "79"]
[EventDate "1982.03.27"]
[EventType "tourn"]
[EventRounds "5"]
[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 c5 4. d5 b5 5. dxe6 fxe6 6. cxb5 d5 7. Bg5 Be7 8. e3 Nbd7 9. Nc3 0-0 10. Be2 Qc7 11. 0-0 Bd6 12. Bh4 Bb7 13. Bg3 Bxg3 14. hxg3 Rad8 15. Rc1 Qd6 16. Qa4 d4 17. exd4 Bxf3 18. Bxf3 cxd4 19. Ne4 Nxe4 20. Bxe4 Nc5 21. Qc2 Nxe4 22. Qxe4 Rfe8 23. Rc6 Qd5 24. Qxd5 Rxd5 25. a4 Re7 26. Rd1 Kf7 27. f3 d3 28. Rd2 Kf6 29. Kf2 Red7 30. Rc3 g5 31. b3 h5 32. Rc4 Kf5 33. Rc6 Kf6 34. b6 a5 35. b4 axb4 36. Rc4 b3 37. Rb4 Rd4 38. Rxb3 Rb7 39. a5 Ra4 40. Rb5 1-0

[Event "Gauchos-ch 38th"]
[Site "Santa Rosa"]
[Date "1982.03.??"]
[Round "1"]
[White "Correa, Aron Antunes"]
[Black "Costamilan, Gerson Bazo"]
[Result "1-0"]
[ECO "E06"]
[PlyCount "65"]
[EventDate "1982.03.27"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 e6 3. Bg2 d5 4. 0-0 Be7 5. c4 0-0 6. d4 Nbd7 7. Nc3 b6 8. Ne5 Bb7 9. Qa4 c6 10. Bf4 Nxe5 11. dxe5 Nd7 12. h4 Nc5 13. Qc2 dxc4 14. Rad1 Qc7 15. Ne4 Ba6 16. Nf6+ Bxf6 17. exf6 e5 18. fxg7 Kxg7 19. Be3 Ne6 20. Qf5 Rg8 21. Be4 Kf8 22. Qf6 Qe7 23. Bh6+ Ng7 24. Qxc6 Rc8 25. Qa4 Bb7 26. Rd7 Bxe4 27. Rxe7 Kxe7 28. Qxa7+ Ke6 29. Qxb6+ Rc6 30. Qe3 Bd5 31. Qg5 f6 32. Qg4+ Ke7 33. Bxg7 1-0

[Event "Gauchos-ch 38th"]
[Site "Santa Rosa"]
[Date "1982.03.??"]
[Round "4"]
[White "Costamilan, Gerson Bazo"]
[Black "Oliveira, Paulo Sergio De Cas"]
[Result "1-0"]
[ECO "C74"]
[PlyCount "139"]
[EventDate "1982.03.27"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 g5 6. h3 Bd7 7. d3 h6 8. Nbd2 Qf6 9. Nf1 Nge7 10. Ne3 Bg7 11. Bd2 Ng6 12. g3 Qd8 13. Qe2 Nce7 14. Bb3 Qc8 15. h4 f6 16. Nh2 Be6 17. Bxe6 Qxe6 18. h5 Nf8 19. g4 Qd7 20. Nf5 Nxf5 21. gxf5 d5 22. 0-0-0 dxe4 23. dxe4 Qa4 24. Kb1 Nd7 25. f3 0-0 26. Qd3 Rf7 27. Qd5 c6 28. Qb3 Qxb3 29. axb3 a5 30. Be3 Bf8 31. Ng4 Kg7 32. Rd2 b6 33. Rhd1 Ra7 34. Kc2 Rb7 35. Rd3 Nb8 36. Rd8 Be7 37. Rc8 Rf8 38. Rxf8 Bxf8 39. Rd8 Be7 40. Rc8 Bd6 41. Re8 Be7 42. Bxb6 Kf7 43. Rh8 Rxb6 44. Rxh6 Nd7 45. Rh7+ Ke8 46. Rh8+ Bf8 47. h6 Kf7 48. Rh7+ Ke8 49. Rh8 Kf7 50. Ne3 Rb7 51. Nc4 Ra7 52. Nb6 Rb7 53. Nxd7 Rxd7 54. h7 Bg7 55. Rc8 Ra7 56. h8Q Bxh8 57. Rxh8 Kg7 58. Rc8 Ra6 59. Kd3 Rb6 60. Rc7+ Kh6 61. Kc4 g4 62. fxg4 Kg5 63. Rf7 Ra6 64. Rg7+ Kf4 65. Rg6 Kxe4 66. Rxf6 Kf3 67. g5 Ra8 68. g6 e4 69. Re6 Rg8 70. f6 1-0

[Event "Gauchos-ch 38th"]
[Site "Santa Rosa"]
[Date "1982.03.??"]
[Round "2"]
[White "Costamilan, Gerson Bazo"]
[Black "Schadeck, Horst"]
[Result "1-0"]
[ECO "C15"]
[PlyCount "77"]
[EventDate "1982.03.27"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Nge2 dxe4 5. a3 Be7 6. Nxe4 Nf6 7. N2g3 Nbd7 8. Bd3 0-0 9. 0-0 e5 10. Nxf6+ Bxf6 11. d5 Nc5 12. Be2 a5 13. Be3 b6 14. b3 Bb7 15. c4 g6 16. b4 axb4 17. axb4 Rxa1 18. Qxa1 Nb3 19. Qc3 Nd4 20. Bxd4 exd4 21. Qd3 c5 22. bxc5 bxc5 23. Rb1 Ba6 24. Ra1 Qb6 25. Ne4 Bc8 26. Nxf6+ Qxf6 27. Ra5 Bf5 28. Qd1 Qe7 29. g4 Bc8 30. Bf3 Re8 31. Kg2 Qc7 32. Qa4 Re1 33. Qa3 Qf4 34. Ra8 Qc7 35. d6 Qd8 36. Qxc5 Re8 37. Qxd4 Qd7 38. c5 h5 39. c6 1-0

[Event "Gauchos-ch 38th"]
[Site "Santa Rosa"]
[Date "1982.03.??"]
[Round "3"]
[White "Souza, Ivan Boere"]
[Black "Costamilan, Gerson Bazo"]
[Result "1-0"]
[ECO "C89"]
[PlyCount "81"]
[EventDate "1982.03.27"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Be7 7. Re1 0-0 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 Nf6 12. d4 Bd6 13. f4 Bxe5 14. fxe5 Nd5 15. Qf3 c6 16. Qg3 Bf5 17. Bg5 Qd7 18. Nd2 Kh8 19. Nf3 f6 20. Bxd5 cxd5 21. exf6 gxf6 22. Bh6 Rg8 23. Qf2 Bg6 24. Nh4 Qf7 25. Rf1 Rge8 26. h3 Bd3 27. Rd1 Bg6 28. Rd2 Re4 29. Qg3 Rae8 30. Rf2 Re2 31. Rf4 R8e3 32. Qg4 Re4 33. Qc8+ Qe8 34. Qxa6 Rxf4 35. Bxf4 Re6 36. Qb7 Be4 37. Bh6 Re7 38. Qb6 Re6 39. Qc7 Qe7 40. Qg3 Ra6 41. Qb8+ 1-0

[Event "BRA-ch U18"]
[Site "Vacaria"]
[Date "1978.02.??"]
[Round "5"]
[White "Andrade, Ledio"]
[Black "Costamilan, Gerson Bazo"]
[Result "1-0"]
[ECO "E17"]
[PlyCount "89"]
[EventDate "1978.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. 0-0 e6 5. c4 Be7 6. b3 0-0 7. Bb2 d5 8. d4 dxc4 9. bxc4 c5 10. e3 Nc6 11. Qa4 Rc8 12. Ne5 Qc7 13. Nxc6 Bxc6 14. Bxc6 Qxc6 15. Qxa7 Ra8 16. Qxe7 Rfe8 17. d5 exd5 18. cxd5 Qb5 19. Bxf6 Rxe7 20. Bxe7 Qb2 21. Nd2 Qxd2 22. Rfd1 Qc2 23. d6 Rxa2 24. Rf1 Qxf2+ 25. Rxf2 Rxa1+ 26. Kg2 Rd1 27. Rb2 f6 28. Rxb6 Kf7 29. Rc6 Rc1 30. Kf3 c4 31. h4 c3 32. Ke2 c2 33. Kd2 Rg1 34. Rxc2 Rxg3 35. Rc4 Ke6 36. Rd4 Kd7 37. Ke2 f5 38. Kf2 Rh3 39. Bg5 Rh1 40. Kg2 Rb1 41. Bf4 Rb8 42. Rc4 Rg8 43. Rc7+ Ke6 44. Re7+ Kd5 45. d7 1-0

[Event "BRA-ch U18"]
[Site "Vacaria"]
[Date "1978.02.??"]
[Round "1"]
[White "Costamilan, Gerson Bazo"]
[Black "Daher, Flavio"]
[Result "0-1"]
[ECO "B26"]
[PlyCount "88"]
[EventDate "1978.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e5 6. Be3 d6 7. Nce2 Nge7 8. c3 Qa5 9. Qd2 b5 10. f4 b4 11. Nf3 bxc3 12. bxc3 0-0 13. 0-0 Rb8 14. Rad1 Qa3 15. Rb1 Be6 16. c4 exf4 17. Bxf4 Ne5 18. Bxe5 dxe5 19. Qc2 Nc6 20. Rxb8 Rxb8 21. Rb1 Nb4 22. Qb3 Qxb3 23. Rxb3 Rd8 24. Ne1 Nxa2 25. Ra3 Nb4 26. Rxa7 Nxd3 27. Nxd3 Rxd3 28. Ra4 Bg4 29. Kf2 Bh6 30. Ra2 Be3+ 31. Ke1 Rb3 32. Ra1 Rb2 33. Bf1 Bf3 34. Rd1 Bxe4 35. Bh3 Bf3 36. Bf1 Kg7 37. Rd3 Rb1+ 38. Rd1 Rb3 39. Ra1 Rb2 40. h3 Rb3 41. g4 h6 42. Nc1 Rb2 43. Nd3 Rc2 44. Rb1 e4 0-1

[Event "BRA-ch U18"]
[Site "Vacaria"]
[Date "1978.02.??"]
[Round "7"]
[White "Costamilan, Gerson Bazo"]
[Black "Frota, Antonio Adolfo"]
[Result "1/2-1/2"]
[ECO "B24"]
[PlyCount "62"]
[EventDate "1978.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 e6 4. Bg2 Nf6 5. d3 Be7 6. f4 d6 7. Nf3 Qc7 8. 0-0 0-0 9. a3 a6 10. d4 cxd4 11. Nxd4 Qb6 12. Be3 e5 13. Nf5 Qc7 14. Nxe7+ Nxe7 15. f5 h6 16. g4 b5 17. g5 hxg5 18. Bxg5 Nh7 19. Be3 Nf6 20. Rf3 d5 21. exd5 Nxf5 22. d6 Nxe3 23. dxc7 Nxd1 24. Rxd1 Ra7 25. Re3 Rxc7 26. Rxe5 Bb7 27. Bxb7 Rxb7 28. Rd6 Ra7 29. Rc5 Re8 30. Rcc6 Re1+ 31. Kf2 Rc1 1/2-1/2

[Event "BRA-ch U18"]
[Site "Vacaria"]
[Date "1978.02.??"]
[Round "4"]
[White "Costamilan, Gerson Bazo"]
[Black "Milos, Gilberto"]
[Result "0-1"]
[ECO "B09"]
[PlyCount "86"]
[EventDate "1978.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. dxc5 Qa5 7. Bd3 Qxc5 8. Qe2 0-0 9. Be3 Qa5 10. 0-0 Bg4 11. h3 Bxf3 12. Rxf3 Nc6 13. f5 Qb4 14. fxg6 hxg6 15. Rb1 Nd4 16. Bxd4 Qxd4+ 17. Qe3 Qxe3+ 18. Rxe3 Nd7 19. Ne2 Rfc8 20. c3 Ne5 21. Bc2 b5 22. Bb3 Rab8 23. Nd4 b4 24. cxb4 Rxb4 25. Rc3 Nc4 26. Rd1 Rc5 27. Rxc4 Rbxc4 28. Bxc4 Rxc4 29. Nb3 Rxe4 30. Rd2 Re1+ 31. Kf2 Rb1 32. Kf3 Rxb2 33. Rxb2 Bxb2 34. Na5 Kf8 35. Ke4 Ba3 36. Kd5 Bc5 37. Nb3 Bf2 38. a4 Ke8 39. Kc6 Kd8 40. Kb7 Kd7 41. Na5 e5 42. Nc6 e4 43. a5 Bc5 0-1

[Event "BRA-ch U18"]
[Site "Vacaria"]
[Date "1978.02.??"]
[Round "6"]
[White "Dabus, Sergio Brant"]
[Black "Costamilan, Gerson Bazo"]
[Result "1/2-1/2"]
[ECO "E24"]
[PlyCount "23"]
[EventDate "1978.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 d6 6. Nf3 0-0 7. Bg5 c5 8. e3 Qa5 9. Qc2 Ne4 10. Bd3 d5 11. 0-0 h6 12. Bf4 1/2-1/2

[Event "BRA-ch U18"]
[Site "Vacaria"]
[Date "1978.02.??"]
[Round "2"]
[White "De Oliveira, Carlos Eduardo V"]
[Black "Costamilan, Gerson Bazo"]
[Result "1/2-1/2"]
[ECO "A11"]
[PlyCount "79"]
[EventDate "1978.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 g6 4. 0-0 Bg7 5. c4 c6 6. Qc2 0-0 7. d3 Nbd7 8. Nbd2 b6 9. Rb1 Bb7 10. b4 dxc4 11. Nxc4 Re8 12. Bb2 c5 13. b5 Qc7 14. Qb3 e5 15. e4 Nh5 16. Ng5 Nf8 17. Bc1 h6 18. Nf3 Rad8 19. Bb2 Kh7 20. Ncxe5 Bxe5 21. Bxe5 Rxe5 22. Nxe5 Qxe5 23. Qxf7+ Qg7 24. Qc4 Rd4 25. Qc2 Qd7 26. Rfd1 g5 27. Qe2 Nf6 28. f4 gxf4 29. gxf4 Ng6 30. Qf3 Nxe4 31. dxe4 Bxe4 32. Qxe4 Rxd1+ 33. Rxd1 Qxd1+ 34. Kf2 Qd2+ 35. Kg3 Kg7 36. Qb7+ Kf6 37. Qc6+ Kg7 38. Qb7+ Kf6 39. Qc6+ Kg7 40. Qb7+ 1/2-1/2

[Event "BRA-ch U18"]
[Site "Vacaria"]
[Date "1978.02.??"]
[Round "3"]
[White "Godois, Jorge de Oliveira"]
[Black "Costamilan, Gerson Bazo"]
[Result "0-1"]
[ECO "C07"]
[PlyCount "54"]
[EventDate "1978.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. c3 Nc6 5. Ngf3 Qb6 6. exd5 exd5 7. Nb3 c4 8. Nbd2 Qc7 9. Be2 Nf6 10. Nf1 Bd6 11. Ng3 h6 12. Qc2 0-0 13. Nf5 Bxf5 14. Qxf5 Rfe8 15. h3 Qe7 16. Be3 Ne4 17. Ne5 Nxe5 18. dxe5 Bxe5 19. 0-0 Rad8 20. Qf3 Rd6 21. g3 Rg6 22. Bf4 Qd6 23. Bxe5 Qxe5 24. Kh2 Nd2 25. Qh1 Qxe2 26. Rae1 Nf3+ 27. Qxf3 Qxf3 0-1

