[Event "BRA-ch sf"]
[Site "Brazil"]
[Date "2001.??.??"]
[Round "4"]
[White "Costa, Marco Antonio Jr"]
[Black "Matias, Adriano"]
[Result "0-1"]
[ECO "B18"]
[PlyCount "76"]
[EventDate "2001.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 e6 7. Bd3 Bxd3 8. Qxd3 Nd7 9. 0-0 Ngf6 10. Bg5 h6 11. Bf4 c5 12. c3 cxd4 13. Nxd4 e5 14. Bxe5 Nxe5 15. Rfe1 Bd6 16. f4 Nfd7 17. fxe5 Bxe5 18. Qb5 Qc7 19. Nf3 f6 20. Nxe5 fxe5 21. Rf1 Rf8 22. Rxf8+ Kxf8 23. Rf1+ Nf6 24. Nh5 Qe7 25. Rf5 Re8 26. Ng3 Kg8 27. Qc4+ Kh8 28. Ne4 Nxe4 29. Qxe4 b6 30. b4 Qc7 31. c4 Qd6 32. a3 g6 33. Rf7 a6 34. Qb7 Qd4+ 35. Rf2 Rf8 36. h3 Qxf2+ 37. Kh2 Qf4+ 38. Kh1 Rd8 0-1

[Event "BRA-ch sf"]
[Site "Brazil"]
[Date "2001.??.??"]
[Round "3"]
[White "Costa, Marco Antonio Jr"]
[Black "Santos, Carlos Antonio"]
[Result "0-1"]
[ECO "B17"]
[PlyCount "74"]
[EventDate "2001.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Bd3 Nxe4 7. Bxe4 Nf6 8. Bd3 Bg4 9. c3 e6 10. 0-0 Be7 11. Bg5 Qa5 12. Bxf6 Bxf6 13. h3 Bxf3 14. Qxf3 0-0 15. Rfe1 Rfe8 16. Re4 Rad8 17. Rf4 Rd5 18. Rxf6 gxf6 19. Qxf6 Rh5 20. Kh2 Qg5 21. Bxh7+ Kf8 22. Qxg5 Rxg5 23. Bd3 e5 24. Re1 exd4 25. Rxe8+ Kxe8 26. cxd4 Rd5 27. g4 Rxd4 28. Bf5 Rd2 29. h4 Rxf2+ 30. Kg3 Rxb2 31. h5 Kf8 32. g5 Rb4 33. Bg4 Re4 34. Kh4 Kg7 35. h6+ Kg6 36. Kg3 Kxg5 37. h7 Re8 0-1

[Event "BRA-ch sf"]
[Site "Brazil"]
[Date "2001.??.??"]
[Round "7"]
[White "Costa, Marco Antonio Jr"]
[Black "Santos, Jonas"]
[Result "1-0"]
[ECO "B02"]
[PlyCount "91"]
[EventDate "2001.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 g6 3. Nf3 Bg7 4. Bc4 0-0 5. d3 Nc6 6. 0-0 d6 7. Bg5 e6 8. a3 a6 9. Re1 e5 10. d4 Re8 11. Nd5 b5 12. Ba2 Bb7 13. Qd2 Nxd4 14. Nxd4 exd4 15. Qxd4 Bxd5 16. Bxd5 c5 17. Qd2 Rb8 18. Rad1 Qd7 19. b3 Nxd5 20. Qxd5 Qc7 21. Qxd6 Qxd6 22. Rxd6 Be5 23. Rxa6 Kg7 24. Kf1 h6 25. Be3 Rbc8 26. c4 bxc4 27. bxc4 Bxh2 28. g3 Rxe4 29. Bd4+ Rxd4 30. a4 Rxc4 31. a5 Rc3 32. Kg2 Bxg3 33. fxg3 Ra3 34. Ra7 Kf8 35. Rd1 Re8 36. Rdd7 Ra2+ 37. Kh3 Rf2 38. a6 g5 39. Rac7 Rf1 40. a7 h5 41. Re7 Ra8 42. Rb7 Ra1 43. Rxf7+ Ke8 44. Rh7 g4+ 45. Kh4 Rf1 46. Rb8+ 1-0

[Event "BRA-ch sf"]
[Site "Brazil"]
[Date "2001.??.??"]
[Round "2"]
[White "Matozo, Paulo Adriano"]
[Black "Costa, Marco Antonio Jr"]
[Result "1-0"]
[ECO "C10"]
[PlyCount "67"]
[EventDate "2001.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Be7 6. Bd3 Ngf6 7. 0-0 Nxe4 8. Bxe4 Nf6 9. Bd3 0-0 10. Bg5 b6 11. Re1 Re8 12. Qe2 h6 13. Bxf6 Bxf6 14. Qe4 Rb8 15. Qh7+ Kf8 16. Ne5 Bb7 17. Nxf7 Kxf7 18. Bg6+ Ke7 19. Rxe6+ Kxe6 20. Re1+ Kd6 21. Rxe8 Qxe8 22. Bxe8 Rxe8 23. h3 Bxd4 24. Qd3 c5 25. c3 Re1+ 26. Kh2 Be4 27. Qd2 Ra1 28. cxd4 Kc6 29. f3 Bd5 30. dxc5 Kxc5 31. a3 a5 32. Qc3+ Kb5 33. Qe5 Kc5 34. b4+ 1-0

[Event "BRA-ch sf"]
[Site "Brazil"]
[Date "2001.??.??"]
[Round "1"]
[White "Queiroz, Glauber"]
[Black "Costa, Marco Antonio Jr"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "54"]
[EventDate "2001.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nc6 3. e3 a6 4. c4 e6 5. a3 Nf6 6. Nc3 Bd6 7. c5 Be7 8. b4 b6 9. Bd3 0-0 10. Bb2 Re8 11. b5 axb5 12. Bxb5 Bd7 13. Bxc6 Bxc6 14. Ne5 Bb7 15. c6 Ba6 16. a4 Bb4 17. Qb3 Qd6 18. f3 Kf8 19. Kf2 Ng8 20. Nd7+ Ke7 21. Ba3 Bxa3 22. Qxa3 Qxa3 23. Rxa3 Kd6 24. Rc1 f6 25. Na2 Ne7 26. Rac3 Bc4 27. e4 Nxc6 0-1

[Event "BRA-ch sf"]
[Site "Brazil"]
[Date "2001.??.??"]
[Round "5"]
[White "Valadares, Ildeu"]
[Black "Costa, Marco Antonio Jr"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "61"]
[EventDate "2001.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 Bf5 4. Nf3 Nbd7 5. Be2 e6 6. 0-0 Be7 7. Nbd2 0-0 8. h3 h6 9. c4 c6 10. c5 b6 11. b4 a6 12. a4 Ne4 13. Nxe4 Bxe4 14. Ne5 Nxe5 15. Bxe5 f6 16. Bh2 Bg6 17. Bh5 Bxh5 18. Qxh5 Re8 19. Bf4 Bf8 20. Qg6 Kh8 21. g4 e5 22. Bg3 bxc5 23. bxc5 exd4 24. exd4 Re4 25. Rfd1 Qa5 26. Qf7 Kh7 27. Qb7 Rd8 28. Bc7 Re7 29. Bxa5 Rxb7 30. Bxd8 g6 31. Bxf6 1-0

[Event "Florianopolis op"]
[Site "Florianopolis"]
[Date "1999.??.??"]
[Round "4"]
[White "Carneiro, Alan"]
[Black "Costa, Marco Antonio Jr"]
[Result "0-1"]
[ECO "E70"]
[PlyCount "56"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. d5 Nh5 8. Bd3 f5 9. Nge2 f4 10. Bf2 Bf6 11. b4 Ng7 12. c5 g5 13. Kd2 g4 14. Qb3 gxf3 15. gxf3 Bh4 16. Raf1 Bh3 17. Bxh4 Qxh4 18. Re1 Kh8 19. Nd1 Bg2 20. Rhg1 Bxf3 21. Ref1 Bg4 22. Rf2 Rg8 23. cxd6 cxd6 24. Qc4 Rc8 25. Rxg4 Qxg4 26. Rg2 Qh3 27. Nxf4 exf4 28. Rxg7 Rxc4 0-1

[Event "Florianopolis op"]
[Site "Florianopolis"]
[Date "1999.??.??"]
[Round "1"]
[White "Costa, Marco Antonio Jr"]
[Black "Fier, Alexandr"]
[Result "0-1"]
[ECO "E72"]
[PlyCount "86"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. e4 e5 4. Nge2 Bg7 5. g3 0-0 6. Bg2 d6 7. 0-0 Nh5 8. d4 Nc6 9. d5 Ne7 10. Be3 f5 11. f3 f4 12. Bf2 g5 13. g4 Nf6 14. Nc1 h5 15. h3 hxg4 16. hxg4 b6 17. b4 Ng6 18. Nd3 Nh4 19. a4 Rf7 20. c5 Bf8 21. cxd6 Bxd6 22. a5 Qd7 23. axb6 Nxg4 24. fxg4 Nxg2 25. Qf3 Nh4 26. Bxh4 gxh4 27. bxa7 Rg7 28. Kf2 Rxg4 29. Qxg4+ Qxg4 30. Rg1 Qg3+ 31. Rxg3+ hxg3+ 32. Kg2 Kf7 33. Nb5 Bd7 34. Nxd6+ cxd6 35. Ra5 Kf6 36. b5 Kg5 37. b6 Bc8 38. Nb4 Kg4 39. Ra3 Bb7 40. Nc6 Rh8 41. Na5 f3+ 42. Rxf3 Rh2+ 43. Kg1 Kxf3 0-1

[Event "Florianopolis op"]
[Site "Florianopolis"]
[Date "1999.??.??"]
[Round "5"]
[White "Costa, Marco Antonio Jr"]
[Black "Prates, Fabiano Fortes"]
[Result "1-0"]
[ECO "E99"]
[BlackElo "2229"]
[PlyCount "87"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. c4 g6 2. Nc3 Bg7 3. d4 Nf6 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Nd3 f5 11. Bd2 Nf6 12. f3 f4 13. Rc1 g5 14. c5 Ng6 15. cxd6 cxd6 16. Nb5 Qb6+ 17. Nf2 Rf7 18. a4 Bf8 19. a5 Qd8 20. Qc2 Ne8 21. b4 Bd7 22. Qb3 Ne7 23. Rc2 a6 24. Na3 h5 25. Rfc1 Rg7 26. h3 Nf6 27. Rc7 Bc8 28. b5 g4 29. hxg4 hxg4 30. fxg4 Ne8 31. R7c2 axb5 32. Nxb5 b6 33. Nc7 Nxc7 34. Rxc7 bxa5 35. Qb6 a4 36. Ba5 a3 37. Ra1 Rh7 38. Rxa3 Nxd5 39. Rg7+ Kxg7 40. Qxd8 Ne3 41. Qg5+ Kh8 42. Qf6+ Kg8 43. Rxe3 fxe3 44. Bc4+ 1-0

[Event "Florianopolis op"]
[Site "Florianopolis"]
[Date "1999.??.??"]
[Round "6"]
[White "Sell, Pablo Henrique"]
[Black "Costa, Marco Antonio Jr"]
[Result "0-1"]
[ECO "B06"]
[PlyCount "120"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. Bg5 c5 5. dxc5 Qa5 6. Qd2 Qxc5 7. Be3 Qb4 8. Rb1 Bxc3 9. Qxc3 Qxc3+ 10. bxc3 Nf6 11. f3 Nc6 12. Bc4 Na5 13. Bb5+ Bd7 14. Bg5 Nh5 15. Ne2 Rc8 16. Kf2 b6 17. Bxd7+ Kxd7 18. Rhd1 h6 19. Be3 e5 20. Rd3 Ng7 21. Rbd1 Rc6 22. Bc1 Nc4 23. Ng3 Ne6 24. Nf1 Nc5 25. Rd5 Na4 26. R1d3 Ke6 27. g4 h5 28. h3 hxg4 29. fxg4 Nc5 30. Rxc5 Rxc5 31. Kg2 Ra5 32. a3 Nxa3 33. Bxa3 Rxa3 34. Ne3 b5 35. Nd5 Rc8 36. g5 Rc5 37. Rf3 Rxd5 38. exd5+ Kxd5 39. Rxf7 Rxc3 40. Rf6 Rxc2+ 41. Kg3 b4 42. Rxg6 b3 43. Rg8 b2 44. Rb8 Ke6 45. h4 a5 46. h5 a4 47. h6 Rc3+ 48. Kg4 Rb3 49. Rxb3 axb3 50. h7 b1Q 51. h8Q Qf5+ 52. Kh4 Qe4+ 53. Kg3 Qf4+ 54. Kh3 Qxg5 55. Qc8+ Kd5 56. Qb7+ Kc4 57. Qc6+ Kd3 58. Qxd6+ Ke2 59. Qa6+ Kf2 60. Qb6+ Qe3+ 0-1

[Event "Sao Bento do Sul JASC"]
[Site "Sao Bento do Sul"]
[Date "1996.11.??"]
[Round "7"]
[White "Barbosa, Marco Antonio"]
[Black "Costa, Marco Antonio Jr"]
[Result "0-1"]
[ECO "C30"]
[PlyCount "56"]
[EventDate "1996.11.01"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Chapeco"]
[BlackTeam "Joinville"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "BRA"]

1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. b4 Bb6 5. Bc4 Nf6 6. Nc3 0-0 7. Qe2 Nc6 8. Bb3 Nd4 9. Nxd4 Bxd4 10. fxe5 Bg4 11. Qd3 dxe5 12. h3 Bh5 13. Bb2 Qe7 14. Rf1 Rad8 15. Qg3 Bxc3 16. Qxc3 Nxe4 17. Qxe5 Qh4+ 18. g3 Qxg3+ 19. Qxg3 Nxg3 20. Rf4 Rfe8+ 21. Kf2 Ne4+ 22. Rxe4 Rxe4 23. Bc3 Rde8 24. d3 Re2+ 25. Kg3 R8e3+ 26. Kf4 Rf3+ 27. Kg5 Rg2+ 28. Kh4 g5+ 0-1

[Event "Sao Bento do Sul JASC"]
[Site "Sao Bento do Sul"]
[Date "1996.11.??"]
[Round "3"]
[White "Cortiano, Luis Gustavo"]
[Black "Costa, Marco Antonio Jr"]
[Result "0-1"]
[ECO "C45"]
[PlyCount "72"]
[EventDate "1996.11.01"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Concordia"]
[BlackTeam "Joinville"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "BRA"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bc4 0-0 8. 0-0 Bb6 9. Qd2 h6 10. f3 a6 11. Na3 d6 12. Nac2 Bd7 13. Nxc6 Bxe3+ 14. Nxe3 Bxc6 15. Rad1 Rfe8 16. Rfe1 Ng6 17. Nd5 Bxd5 18. Qxd5 Nh4 19. Re2 Re5 20. Qxb7 Rae8 21. Qxc7 Rc5 22. Qd7 Rd8 23. Bxf7+ Kf8 24. Qe6 Qxf7 25. Rxd6 Qxe6 26. Rxe6 Rg5 27. g3 Nxf3+ 28. Kg2 Nh4+ 29. Kh3 Ng6 30. Rf2+ Kg8 31. Rxa6 Ne5 32. a4 Rh5+ 33. Kg2 Ng4 34. Rf4 Rxh2+ 35. Kf3 Ne5+ 36. Ke3 Rd3# 0-1

[Event "Sao Bento do Sul JASC"]
[Site "Sao Bento do Sul"]
[Date "1996.11.??"]
[Round "4"]
[White "Costa, Marco Antonio Jr"]
[Black "Moro, Antonio Renato Pere"]
[Result "1-0"]
[ECO "A23"]
[PlyCount "107"]
[EventDate "1996.11.01"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Joinville"]
[BlackTeam "Palhoca"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "BRA"]

1. c4 Nf6 2. Nc3 e5 3. g3 Be7 4. Bg2 c6 5. d4 exd4 6. Qxd4 Na6 7. e4 0-0 8. Nge2 Bc5 9. Qd1 d5 10. cxd5 cxd5 11. exd5 Bg4 12. 0-0 Re8 13. a3 Nc7 14. Bg5 Bxe2 15. Bxf6 Qxf6 16. Nxe2 Rad8 17. Nc3 Bd4 18. Qb3 Re7 19. Ne4 Qe5 20. d6 Rxd6 21. Nxd6 Qxd6 22. Qxb7 Ne6 23. Qc8+ Nf8 24. Qc2 Rc7 25. Qd2 Qf6 26. Rab1 g6 27. b4 Nd7 28. Rbc1 Rxc1 29. Qxc1 Nb6 30. Qc6 Qf5 31. a4 Nd7 32. Qd5 Qxd5 33. Bxd5 Kf8 34. Rd1 Bc3 35. Bxf7 Ne5 36. Bd5 Bxb4 37. Rb1 a5 38. Rc1 Ke7 39. Be4 Kd7 40. h3 Nf7 41. Kg2 Ng5 42. Bf3 Ne6 43. Bg4 Ke7 44. Bxe6 Kxe6 45. Kf3 Kd6 46. Ke4 h6 47. f4 Bc5 48. g4 Bf2 49. Rc8 Ke6 50. Rc6+ Kf7 51. Ke5 Bh4 52. Rc7+ Kg8 53. Ra7 Be1 54. Kf6 1-0

[Event "Sao Bento do Sul JASC"]
[Site "Sao Bento do Sul"]
[Date "1996.11.??"]
[Round "5"]
[White "Horst, Rodrigo"]
[Black "Costa, Marco Antonio Jr"]
[Result "0-1"]
[ECO "E86"]
[PlyCount "53"]
[EventDate "1996.11.01"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Sao Bento do Sul"]
[BlackTeam "Joinville"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "BRA"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. Nge2 c6 8. Qd2 Qc7 9. d5 cxd5 10. Nxd5 Nxd5 11. cxd5 f5 12. Rc1 Qe7 13. Nc3 a6 14. Na4 Nd7 15. Bd3 b5 16. Nb6 Rb8 17. Rc6 Nxb6 18. Bxb6 Bd7 19. Bc7 Bxc6 20. Bxb8 Ba8 21. Qa5 fxe4 22. Qxa6 exd3 23. Qxa8 Qd8 24. Kd2 Qxb8 25. Qxb8 Rxb8 26. Kxd3 Rc8 27. Rd1 0-1

[Event "BRA-ch U26"]
[Site "Florianopolis"]
[Date "1995.08.??"]
[Round "2"]
[White "Costa, Marco Antonio Jr"]
[Black "Gomes, Jainy"]
[Result "1-0"]
[ECO "A28"]
[PlyCount "35"]
[EventDate "1995.08.03"]
[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 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 Ne4 7. Bxd8 Nxc3 8. Nxc6 Nxd1+ 9. Nxb4 Nxb2 10. Bxc7 Nxc4 11. e3 Na3 12. Bd3 a6 13. Nd5 Nb5 14. Bxb5 axb5 15. Nb6 Ra6 16. Nxc8 Rc6 17. Nd6+ Ke7 18. Nxb5 1-0

[Event "BRA-ch U26"]
[Site "Florianopolis"]
[Date "1995.08.??"]
[Round "4"]
[White "Costa, Marco Antonio Jr"]
[Black "Morgado Dias, Stefan"]
[Result "0-1"]
[ECO "B04"]
[PlyCount "70"]
[EventDate "1995.08.03"]
[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 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Bc4 dxe5 6. dxe5 e6 7. 0-0 Be7 8. Nbd2 0-0 9. Be2 Nf4 10. Nc4 Nxe2+ 11. Qxe2 Nc6 12. Rd1 Qe8 13. Bf4 Bc5 14. c3 a5 15. Bg5 h6 16. Bh4 Ne7 17. Ne3 Bxe3 18. fxe3 Ng6 19. Bg3 Qc6 20. Rd4 Bxf3 21. gxf3 a4 22. h4 a3 23. e4 axb2 24. Qxb2 Rfd8 25. h5 Nf8 26. Bh4 Rxd4 27. cxd4 Qc4 28. Kh1 Qd3 29. Qg2 Qxd4 30. Rg1 Qxe5 31. Bg3 Qxh5+ 32. Bh2 Ng6 33. f4 Ra3 34. Rf1 Nh4 35. Qe2 Rh3 0-1

[Event "BRA-ch U26"]
[Site "Florianopolis"]
[Date "1995.08.??"]
[Round "6"]
[White "Costa, Marco Antonio Jr"]
[Black "Santilli, Francisco"]
[Result "1-0"]
[ECO "C07"]
[PlyCount "35"]
[EventDate "1995.08.03"]
[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 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd6 7. 0-0 Nc6 8. Re1 Nf6 9. Ne4 Qc7 10. Nxd4 a6 11. Bg5 Be7 12. Bh4 Bd7 13. Nf5 0-0-0 14. Bg3 e5 15. Nfd6+ Bxd6 16. Nxd6+ Kb8 17. Nxf7 Be6 18. Nxd8 1-0

[Event "BRA-ch U26"]
[Site "Florianopolis"]
[Date "1995.08.??"]
[Round "1"]
[White "Horiuchi, Hermann Koki"]
[Black "Costa, Marco Antonio Jr"]
[Result "0-1"]
[ECO "C89"]
[PlyCount "72"]
[EventDate "1995.08.03"]
[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 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d4 Bd6 13. Re1 Qh4 14. g3 Qh3 15. Be3 Bg4 16. Qd3 Rae8 17. Nd2 Re6 18. a4 f5 19. Bxd5 cxd5 20. f4 Rh6 21. Nf1 Bf3 22. Qd2 Kh8 23. Qf2 Bg4 24. axb5 axb5 25. Bd2 Qh5 26. Ra5 Bf3 27. Rea1 Re6 28. Be3 g5 29. Ra8 gxf4 30. Rxf8+ Bxf8 31. gxf4 Rg6+ 32. Ng3 Qg4 33. Kf1 h5 34. Ke1 h4 35. Nf1 Qh3 36. Nd2 Bh5 0-1

[Event "BRA-ch U26"]
[Site "Florianopolis"]
[Date "1995.08.??"]
[Round "3"]
[White "Morgado, Leandro Batista"]
[Black "Costa, Marco Antonio Jr"]
[Result "1/2-1/2"]
[ECO "D94"]
[PlyCount "93"]
[EventDate "1995.08.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e3 g6 2. Nf3 Bg7 3. Be2 Nf6 4. 0-0 0-0 5. d4 b6 6. c4 Bb7 7. Nc3 d5 8. Ne5 e6 9. cxd5 exd5 10. Qc2 Nbd7 11. Nd3 c5 12. dxc5 bxc5 13. Bf3 Rc8 14. Rd1 Qe7 15. Nf4 Nb6 16. Nfxd5 Nfxd5 17. Nxd5 Qe5 18. e4 Nxd5 19. exd5 Rfd8 20. Qe4 Qf6 21. Be3 Ba8 22. Rab1 Qa6 23. a4 Rc7 24. b3 Qc8 25. Qc4 Be5 26. Rbc1 Bd6 27. Bg5 Re8 28. Re1 Be5 29. Be3 Bd6 30. Bd2 Ree7 31. Rxe7 Rxe7 32. Bg5 Re8 33. h3 Qf5 34. Be3 Qe5 35. g3 Qf6 36. Bg2 Bxg3 37. Qxc5 Bd6 38. Qd4 Qf5 39. Rd1 a5 40. Rc1 h5 41. Rd1 Kh7 42. Qb6 Qe5 43. Qxa5 Qh2+ 44. Kf1 Bb7 45. Qb5 Rb8 46. Qe2 Ra8 47. Rd3 1/2-1/2

[Event "BRA-ch U26"]
[Site "Florianopolis"]
[Date "1995.08.??"]
[Round "5"]
[White "Rodrigues, Camilo"]
[Black "Costa, Marco Antonio Jr"]
[Result "1-0"]
[ECO "E70"]
[PlyCount "77"]
[EventDate "1995.08.03"]
[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. Bg5 0-0 6. f4 c5 7. d5 b5 8. cxb5 a6 9. bxa6 Nxa6 10. Nf3 Qb6 11. Qb3 Nb4 12. Nd2 Qc7 13. a3 Ng4 14. Rc1 Na6 15. h3 Nf6 16. Bc4 Rb8 17. Qc2 Qb6 18. b3 Qa5 19. 0-0 Re8 20. Bb5 Bd7 21. Nc4 Qc7 22. Bxa6 Qa7 23. e5 Nh5 24. g4 Qxa6 25. gxh5 Bxh3 26. Rf3 Bg4 27. Rg3 Bxh5 28. exd6 exd6 29. Ne4 Ra8 30. Nf6+ Bxf6 31. Bxf6 Re2 32. Qc3 Qb7 33. Re3 Qd7 34. Rxe2 Bxe2 35. Kf2 Bg4 36. Nb6 Qb5 37. Nxa8 Qe2+ 38. Kg3 Bf5 39. Qf3 1-0

[Event "BRA-ch U26"]
[Site "Florianopolis"]
[Date "1995.08.??"]
[Round "7"]
[White "Vieira, Alfeu Souza"]
[Black "Costa, Marco Antonio Jr"]
[Result "1-0"]
[ECO "C20"]
[PlyCount "95"]
[EventDate "1995.08.03"]
[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 e5 2. c4 Bc5 3. Nf3 d6 4. Be2 Ne7 5. 0-0 0-0 6. d3 f5 7. Nc3 f4 8. a3 Nec6 9. Rb1 Nd7 10. b4 Bb6 11. Nd5 g5 12. Nxb6 axb6 13. b5 Na5 14. h3 Nc5 15. Nh2 Ne6 16. Bb2 Nd4 17. Bxd4 exd4 18. Re1 Qf6 19. Bg4 Re8 20. Bxc8 Raxc8 21. Qg4 Rcd8 22. Nf3 h6 23. h4 Qg7 24. hxg5 hxg5 25. Qxg5 Qxg5 26. Nxg5 Re5 27. Nf3 Rh5 28. Nxd4 Kf7 29. f3 Rdh8 30. Kf2 Kf6 31. a4 Rh2 32. Rg1 R2h4 33. Rb2 Rg8 34. Rbb1 Rh2 35. Ne2 Ke5 36. Rb4 Rh4 37. d4+ Kf6 38. Kf1 Rg7 39. g3 fxg3 40. Nxg3 Rh2 41. Rg2 Rh3 42. Kf2 Rgh7 43. f4 R7h4 44. Kf3 Rh8 45. e5+ Ke7 46. Ke4 Kd7 47. Nf5 R8h7 48. Rg7+ 1-0

[Event "BRA-ch sf"]
[Site "Belo Horizonte"]
[Date "1993.08.??"]
[Round "8"]
[White "Abdul Malek, Omar Rasselen"]
[Black "Costa, Marco Antonio Jr"]
[Result "1/2-1/2"]
[ECO "E61"]
[PlyCount "85"]
[EventDate "1993.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[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. e3 d6 6. Nge2 Nc6 7. 0-0 Nd7 8. d4 e5 9. d5 Ne7 10. e4 f5 11. f4 Kh8 12. Qc2 fxe4 13. Nxe4 Nf5 14. Ng5 Nc5 15. fxe5 Bxe5 16. Nf3 Bf6 17. g4 Nh4 18. Bh6 Nxf3+ 19. Bxf3 Re8 20. Rad1 Be5 21. b4 Na6 22. a3 Bxg4 23. Bxg4 Qh4 24. h3 Qxh6 25. Qd2 Qxd2 26. Rxd2 Rf8 27. Rxf8+ Rxf8 28. Kg2 Kg7 29. Rc2 b6 30. Ng1 Rf4 31. Nf3 Bf6 32. Bc8 Nb8 33. c5 bxc5 34. bxc5 Ra4 35. cxd6 cxd6 36. Rc7+ Kh6 37. Rb7 Na6 38. Rf7 Bb2 39. Rxa7 Nc5 40. Rxa4 Nxa4 41. Bd7 Nb6 42. Be6 Bxa3 43. Nd4 1/2-1/2

[Event "BRA-ch U26"]
[Site "Caioba"]
[Date "1993.08.??"]
[Round "1"]
[White "Costa, Marco Antonio Jr"]
[Black "Barbosa, Ricardo Osaki"]
[Result "1-0"]
[ECO "B23"]
[PlyCount "77"]
[EventDate "1993.08.26"]
[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. Nc3 e6 3. f4 d6 4. Nf3 Nc6 5. Bc4 Nf6 6. 0-0 Be7 7. d3 Na5 8. Bb3 a6 9. Qe1 b5 10. e5 Nxb3 11. cxb3 Nd5 12. Ne4 Nb4 13. Qg3 g6 14. Qf2 Bb7 15. exd6 Bxd6 16. Nxd6+ Qxd6 17. Be3 Rc8 18. Ne5 Nd5 19. Rae1 h5 20. Qh4 Qe7 21. Qh3 Nxe3 22. Rxe3 Qf6 23. Nf3 Bxf3 24. Qxf3 Qe7 25. Qe4 Qd7 26. f5 gxf5 27. Qxf5 Rc7 28. Qe5 Rh7 29. Qc3 Rc6 30. Rg3 Ke7 31. Rg7 Rxg7 32. Qxg7 Qe8 33. Qf6+ Kf8 34. Qh6+ Ke7 35. Qxh5 f5 36. Qg5+ Kd7 37. Rf3 Rd6 38. Rh3 Qf7 39. Rh8 1-0

[Event "BRA-ch U26"]
[Site "Caioba"]
[Date "1993.08.??"]
[Round "3"]
[White "Costa, Marco Antonio Jr"]
[Black "Calcado, Acyr Rogerio"]
[Result "0-1"]
[ECO "B16"]
[BlackElo "2240"]
[PlyCount "28"]
[EventDate "1993.08.26"]
[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 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. Ne2 Bg4 7. Bf4 Qb6 8. f3 Bf5 9. b3 Nd7 10. Qd2 0-0-0 11. 0-0-0 e5 12. dxe5 Ba3+ 13. Kb1 Nc5 14. Qe1 Nxb3 0-1

[Event "BRA-ch sf"]
[Site "Belo Horizonte"]
[Date "1993.08.??"]
[Round "5"]
[White "Costa, Marco Antonio Jr"]
[Black "Macedo, Alexandre Soares"]
[Result "1-0"]
[ECO "B23"]
[PlyCount "63"]
[EventDate "1993.08.02"]
[EventType "swiss"]
[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. Nc3 e6 3. f4 d6 4. Nf3 Nf6 5. Bc4 a6 6. d3 b5 7. Bb3 Qb6 8. f5 h6 9. fxe6 Bxe6 10. Bxe6 fxe6 11. e5 Nfd7 12. Qe2 d5 13. Nh4 Nc6 14. Qh5+ Kd8 15. Ng6 Rg8 16. 0-0 c4+ 17. Kh1 cxd3 18. Nxf8 Rxf8 19. Rxf8+ Nxf8 20. Qf7 Nd7 21. Qg8+ Kc7 22. Qxa8 Qf2 23. Be3 Qxe3 24. cxd3 b4 25. Na4 Ncxe5 26. Rf1 Nxd3 27. h3 Qg3 28. Qa7+ Kd6 29. Nb6 Nf2+ 30. Rxf2 Kc6 31. Rc2+ Nc5 32. Na4 1-0

[Event "BRA-ch U26"]
[Site "Caioba"]
[Date "1993.08.??"]
[Round "5"]
[White "Costa, Marco Antonio Jr"]
[Black "Machado Jr, Julio Cesar"]
[Result "1/2-1/2"]
[ECO "B09"]
[PlyCount "60"]
[EventDate "1993.08.26"]
[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 d6 2. d4 Nf6 3. Nc3 g6 4. f4 c5 5. dxc5 Qa5 6. e5 dxe5 7. fxe5 Ne4 8. Bd2 Nxd2 9. Qxd2 Qxc5 10. 0-0-0 Qa5 11. Nd5 Qxd2+ 12. Rxd2 Bd7 13. e6 fxe6 14. Nc7+ Kd8 15. Nxe6+ Kc8 16. Nxf8 Rxf8 17. Nf3 Nc6 18. Bc4 Bg4 19. Ng5 Ne5 20. Be6+ Bxe6 21. Nxe6 Re8 22. Rhd1 b6 23. Rd5 Nc4 24. Rd8+ Rxd8 25. Rxd8+ Kb7 26. Rd7+ Kc6 27. Rc7+ Kd6 28. Rxc4 Kxe6 29. Kd2 Rd8+ 30. Ke2 Rd7 1/2-1/2

[Event "BRA-ch sf"]
[Site "Belo Horizonte"]
[Date "1993.08.??"]
[Round "1"]
[White "Costa, Marco Antonio Jr"]
[Black "Oliveira, Paulo Sergio De Cas"]
[Result "0-1"]
[ECO "A40"]
[BlackElo "2165"]
[PlyCount "66"]
[EventDate "1993.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 b6 2. c4 Bb7 3. Nc3 e6 4. d4 Bb4 5. Qc2 Bxc3+ 6. bxc3 Qh4 7. Bd3 Nf6 8. g3 Qh5 9. f3 d6 10. Kf2 Nbd7 11. Ne2 e5 12. a4 a5 13. Be3 Qh3 14. Qd2 h5 15. Bg5 Nh7 16. Ng1 Qe6 17. h4 f6 18. Be3 Ba6 19. Qe2 g6 20. Nh3 Rg8 21. f4 Qf7 22. Rhg1 g5 23. Ke1 exf4 24. gxf4 g4 25. Nf2 f5 26. exf5 Nhf6 27. Nh1 0-0-0 28. Ng3 Rge8 29. Kd2 Bb7 30. Qh2 Nc5 31. dxc5 dxc5 32. Bxc5 bxc5 33. Kc2 Re3 0-1

[Event "BRA-ch sf"]
[Site "Belo Horizonte"]
[Date "1993.08.??"]
[Round "4"]
[White "Costa, Marco Antonio Jr"]
[Black "Steinhoff, Igor Muramatsu"]
[Result "0-1"]
[ECO "E98"]
[BlackElo "2230"]
[PlyCount "64"]
[EventDate "1993.08.02"]
[EventType "swiss"]
[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 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Nd3 f5 11. Bd2 Kh8 12. Rc1 Ng8 13. b4 Ndf6 14. f3 f4 15. c5 h5 16. cxd6 cxd6 17. Nf2 g5 18. h3 Rf7 19. a4 Bf8 20. Nb5 a6 21. Na3 Rg7 22. Qb3 Nh6 23. a5 g4 24. fxg4 hxg4 25. hxg4 Nhxg4 26. Nxg4 Nxg4 27. Rf3 Kg8 28. Bf1 Qh4 29. Rh3 Qf2+ 30. Kh1 Qxd2 31. Rc2 Qe1 32. Kg1 Ne3 0-1

[Event "BRA-ch sf"]
[Site "Belo Horizonte"]
[Date "1993.08.??"]
[Round "7"]
[White "Costa, Marco Antonio Jr"]
[Black "Tsuboi, Edson Kenji"]
[Result "0-1"]
[ECO "D89"]
[BlackElo "2325"]
[PlyCount "84"]
[EventDate "1993.08.02"]
[EventType "swiss"]
[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 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 0-0 9. 0-0 Nc6 10. Be3 Bg4 11. f3 Na5 12. Bd3 cxd4 13. cxd4 Be6 14. Rc1 Bxa2 15. Qa4 Be6 16. d5 Bd7 17. Qb4 e6 18. Nc3 b6 19. Rfd1 Re8 20. Ba6 Qh4 21. g3 Qh5 22. Kg2 exd5 23. Rxd5 Qh3+ 24. Kg1 Bc6 25. Bf1 Qe6 26. Rd3 Rad8 27. Rxd8 Rxd8 28. Ne2 Bb7 29. Nf4 Qa2 30. Qe7 Rf8 31. Rc7 Nc6 32. Qd7 Ne5 33. Qd1 Qa3 34. Ng2 Bc8 35. Rc2 h5 36. Qe2 Be6 37. Rc7 Rd8 38. Rc2 b5 39. Kh1 b4 40. Qf2 Rd1 41. Ne1 b3 42. Rc7 b2 0-1

[Event "BRA-ch sf"]
[Site "Belo Horizonte"]
[Date "1993.08.??"]
[Round "3"]
[White "De Haro, Martim Alfonso"]
[Black "Costa, Marco Antonio Jr"]
[Result "1-0"]
[ECO "E97"]
[PlyCount "79"]
[EventDate "1993.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[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. d5 Ne7 9. Nd2 c5 10. Rb1 Nd7 11. b4 b6 12. Nb5 Nf6 13. a4 Ne8 14. a5 f5 15. Qa4 Bd7 16. Qa3 f4 17. Ra1 g5 18. axb6 cxb4 19. Qxb4 Qxb6 20. Qa5 Qb8 21. Ba3 a6 22. Bb4 g4 23. f3 g3 24. c5 Rf6 25. Nxd6 Nxd6 26. cxd6 Nc8 27. Nc4 Rh6 28. h3 Na7 29. Nb6 Bxh3 30. Nxa8 Bd7 31. Rfb1 Qe8 32. Bxa6 Qh5 33. Kf1 Qh1+ 34. Ke2 Qxg2+ 35. Kd3 Qxf3+ 36. Kc4 Qxe4+ 37. Kb3 g2 38. Qd8+ Bf8 39. Qxd7 Qxd5+ 40. Bc4 1-0

[Event "BRA-ch sf"]
[Site "Belo Horizonte"]
[Date "1993.08.??"]
[Round "2"]
[White "Fernandes, Jose Pereira"]
[Black "Costa, Marco Antonio Jr"]
[Result "0-1"]
[ECO "C56"]
[PlyCount "88"]
[EventDate "1993.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[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. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. 0-0 Nxe4 7. cxd4 Be7 8. d5 Nb8 9. Re1 Nd6 10. Bd3 0-0 11. Nc3 Ne8 12. Qe2 Bf6 13. Ne4 d6 14. Nxf6+ Nxf6 15. Bg5 h6 16. Bh4 Bg4 17. Bxf6 Qxf6 18. Qe4 Qg6 19. Qc4 Qh5 20. Nd4 Na6 21. h3 Bd7 22. Re7 Nc5 23. Bc2 Qg5 24. Re3 Rfe8 25. Rg3 Qe5 26. b4 Na6 27. Rd1 Kh8 28. a3 Re7 29. Rdd3 Rae8 30. Rde3 Qh5 31. Qd3 g6 32. Qc3 Rxe3 33. Rxe3 Rxe3 34. fxe3 Qxd5 35. Nf3+ Kh7 36. Qf6 Qe6 37. Qd8 Qxe3+ 38. Kh2 Qf4+ 39. Kg1 Qc1+ 40. Kh2 Qf4+ 41. Kh1 Bxh3 42. b5 Qc1+ 43. Kh2 Qxc2 44. Kxh3 Qf5+ 0-1

[Event "BRA-ch U26"]
[Site "Caioba"]
[Date "1993.08.??"]
[Round "2"]
[White "Gauche, Charles"]
[Black "Costa, Marco Antonio Jr"]
[Result "1/2-1/2"]
[ECO "C88"]
[WhiteElo "2340"]
[PlyCount "147"]
[EventDate "1993.08.26"]
[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 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. a4 Bb7 9. c3 d5 10. d4 dxe4 11. dxe5 exf3 12. exf6 Bxf6 13. axb5 axb5 14. Rxa8 Qxa8 15. Nd2 fxg2 16. Ne4 Be5 17. Nc5 Bd6 18. Nxb7 Qxb7 19. Bd5 Qa6 20. Qh5 Ne5 21. Bxg2 Ng6 22. Qg5 b4 23. f4 bxc3 24. bxc3 Qb6+ 25. Kh1 Qf2 26. Qg3 Qxg3 27. hxg3 Rb8 28. Be3 Nf8 29. Bd5 Re8 30. Kg2 Bc5 31. Bd2 Rxe1 32. Bxe1 Nd7 33. Kf3 Kf8 34. Bb3 Ke7 35. g4 Nf8 36. Bh4+ f6 37. Ke4 Bd6 38. Bg8 Ng6 39. Bg3 Nf8 40. Bf2 h6 41. c4 Nd7 42. Be3 Bc5 43. Bd2 Kd6 44. Kf5 Nf8 45. Bd5 Kd7 46. Bc3 Ke7 47. Ba5 Kd6 48. Bg8 Ba3 49. Bd5 Bc5 50. Bd2 Ke7 51. Ke4 Kd6 52. Kd3 Kd7 53. f5 Ke7 54. Ke4 Nd7 55. Be6 Nb6 56. Bf4 Kd8 57. Bg3 Bg1 58. Be1 Bc5 59. Bg3 Bg1 60. Kd3 c5 61. Bd6 Ke8 62. Kc3 Bd4+ 63. Kb3 Be3 64. Bc7 Nd7 65. Bg8 Ne5 66. Bh7 Nc6 67. Bg6+ Kd7 68. Bg3 Ne5 69. Bh5 Nc6 70. Ka4 Ne5 71. Kb5 Bd4 72. Be1 Kd6 73. Ba5 Nd7 74. Be8 1/2-1/2

[Event "BRA-ch U26"]
[Site "Caioba"]
[Date "1993.08.??"]
[Round "6"]
[White "Gomes, Jainy"]
[Black "Costa, Marco Antonio Jr"]
[Result "0-1"]
[ECO "C77"]
[PlyCount "82"]
[EventDate "1993.08.26"]
[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 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. Bxc6+ bxc6 7. Nc3 Be7 8. h3 0-0 9. 0-0 Rb8 10. b3 Bb7 11. Qe2 Nd7 12. Nd1 Bf6 13. Ba3 Re8 14. Ne3 g6 15. Nh2 d5 16. Neg4 Bg7 17. Qe3 Qh4 18. Rad1 f5 19. exf5 gxf5 20. Nf3 Qh5 21. Ngh2 Bf6 22. g4 fxg4 23. hxg4 Qg6 24. Kh1 c5 25. Qd2 d4 26. Rg1 Bg5 27. Qe1 Bf4 28. Qe2 Qh6 29. Rg2 Qh3 30. Rdg1 Re6 31. g5 Rg6 32. Rg3 Bxg3 33. Rxg3 Qe6 34. Kg1 Qc6 35. Kf1 Rf8 36. Ke1 e4 37. Nh4 Rg7 38. Ng4 exd3 39. Qxd3 Qh1+ 40. Kd2 Qxh4 41. Nh6+ Kh8 0-1

[Event "BRA-ch sf"]
[Site "Belo Horizonte"]
[Date "1993.08.??"]
[Round "9"]
[White "Graciosa F, Hernandes"]
[Black "Costa, Marco Antonio Jr"]
[Result "0-1"]
[ECO "E99"]
[PlyCount "116"]
[EventDate "1993.08.02"]
[EventType "swiss"]
[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 g6 3. Nc3 Bg7 4. e4 0-0 5. Be2 d6 6. Nf3 e5 7. 0-0 Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Nd3 f5 11. f3 f4 12. Bd2 g5 13. Rc1 Ng6 14. b4 Nf6 15. c5 Ne8 16. a4 Rf7 17. cxd6 cxd6 18. Nb5 Bf8 19. Nf2 h5 20. h3 Rg7 21. Rc3 Nh4 22. Qc2 a6 23. Na3 Nf6 24. Rc1 Bd7 25. Qd1 g4 26. fxg4 hxg4 27. hxg4 Nh5 28. a5 Ng3 29. Rxg3 fxg3 30. Nh3 Rc8 31. Nc4 Rg6 32. Rc3 Bb5 33. Be1 Bxc4 34. Rxc4 Rxc4 35. Bxc4 Qc8 36. Be2 Rg7 37. Bxg3 Ng6 38. Qd2 Rc7 39. Qg5 Rc1+ 40. Kh2 Kg7 41. Qh5 Be7 42. Ng5 Bxg5 43. Qxg5 Rb1 44. Qf5 Qc1 45. Qd7+ Kh6 46. g5+ Qxg5 47. Qh3+ Kg7 48. Qd7+ Qe7 49. Qf5 Rxb4 50. Bh5 Qf7 51. Qg4 Rc4 52. Bh4 Qf4+ 53. Qxf4 Nxf4 54. Bf3 Kf7 55. g3 Rc2+ 56. Kh1 Ne2 57. Bh5+ Kf8 58. Kg2 Nf4+ 0-1

[Event "BRA-ch sf"]
[Site "Belo Horizonte"]
[Date "1993.08.??"]
[Round "6"]
[White "Junqueira, Guilherme M"]
[Black "Costa, Marco Antonio Jr"]
[Result "1/2-1/2"]
[ECO "C44"]
[PlyCount "98"]
[EventDate "1993.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[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. d4 exd4 4. c3 d5 5. exd5 Qxd5 6. cxd4 Bg4 7. Be2 0-0-0 8. Nc3 Qa5 9. Be3 Nf6 10. 0-0 Bd6 11. h3 Qh5 12. Ne5 Bxe2 13. Qxe2 Qxe2 14. Nxe2 Rhf8 15. Rac1 h6 16. Nf3 Rfe8 17. Nf4 Kb8 18. Rfd1 Re4 19. Ne2 Nd5 20. Nc3 Nxe3 21. Nxe4 Nxd1 22. Nxd6 Rxd6 23. Rxd1 Kc8 24. Kf1 Kd7 25. a3 f6 26. b4 a6 27. Rd2 Ne7 28. Nh4 Rc6 29. Rd3 Rc2 30. Re3 g5 31. Nf3 Nd5 32. Rb3 Rc3 33. Rxc3 Nxc3 34. Ke1 Nb5 35. a4 Nc3 36. g4 Nxa4 37. Nd2 Ke6 38. Ne4 f5 39. Ng3 fxg4 40. hxg4 Kf6 41. Kd2 Nb6 42. Kd3 Nc8 43. Ne4+ Kf7 44. Nc5 Nd6 45. Ke3 Kf6 46. f3 Kg6 47. f4 gxf4+ 48. Kxf4 Kf6 49. Kf3 Kg6 1/2-1/2

[Event "BRA-ch U26"]
[Site "Caioba"]
[Date "1993.08.??"]
[Round "4"]
[White "Mello, Priscila"]
[Black "Costa, Marco Antonio Jr"]
[Result "1-0"]
[ECO "E72"]
[PlyCount "61"]
[EventDate "1993.08.26"]
[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. e4 d6 6. Nge2 Nbd7 7. d4 c6 8. 0-0 Rb8 9. f4 e5 10. Kh1 exd4 11. Nxd4 Nc5 12. b4 Ne6 13. Nde2 Qb6 14. Rb1 Ng4 15. Qe1 Nd4 16. h3 Nc2 17. Qd2 Nge3 18. Rf3 Nxg2 19. Kxg2 Nd4 20. Nxd4 Qxd4 21. Qxd4 Bxd4 22. Rd3 Bf6 23. Bd2 Be6 24. Rxd6 Rfd8 25. e5 Be7 26. Rxd8+ Rxd8 27. Rd1 Rd4 28. g4 f6 29. f5 Bf7 30. Kf2 Kf8 31. Bh6+ 1-0

[Event "BRA-ch sf"]
[Site "Belo Horizonte"]
[Date "1993.08.??"]
[Round "1"]
[White "Oliveira, Paulo Sergio De Cas"]
[Black "Costa, Marco Antonio Jr"]
[Result "1-0"]
[ECO "C21"]
[WhiteElo "2165"]
[PlyCount "49"]
[EventDate "1993.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. d4 exd4 3. c3 Nc6 4. cxd4 Bb4+ 5. Nc3 d5 6. e5 Nge7 7. Nf3 h6 8. a3 Bxc3+ 9. bxc3 0-0 10. g4 Na5 11. Rg1 Nc4 12. Bd3 Ng6 13. h4 Nxh4 14. g5 Nf5 15. gxh6 g6 16. Bg5 f6 17. Bxf6 Rxf6 18. exf6 Qxf6 19. Bxc4 dxc4 20. Ne5 Nh4 21. Qe2 Be6 22. Qe4 Rf8 23. 0-0-0 Qe7 24. Nxc4 b5 25. d5 1-0

[Event "BRA-ch U26"]
[Site "Caioba"]
[Date "1993.08.??"]
[Round "7"]
[White "Ramos, Rodrigo"]
[Black "Costa, Marco Antonio Jr"]
[Result "1/2-1/2"]
[ECO "C89"]
[PlyCount "49"]
[EventDate "1993.08.26"]
[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 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d4 Bd6 13. Re2 Qh4 14. g3 Qh5 15. Nd2 Bg4 16. f3 Bxf3 17. Nxf3 Qxf3 18. Qf1 Qxf1+ 19. Kxf1 Rae8 20. Bd2 Rxe2 21. Kxe2 Re8+ 22. Kf2 Nf6 23. Re1 Ne4+ 24. Kg2 Kf8 25. Bc1 1/2-1/2

[Event "Florianopolis Taca Joao Ribeiro 4th"]
[Site "Florianopolis"]
[Date "1992.12.??"]
[Round "3"]
[White "Benevenga, Sergio Ramos"]
[Black "Costa, Marco Antonio Jr"]
[Result "1-0"]
[ECO "D00"]
[PlyCount "47"]
[EventDate "1992.12.04"]
[EventType "swiss"]
[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. Nc3 d5 3. e4 Nxe4 4. Nxe4 dxe4 5. f3 e5 6. Be3 exd4 7. Bxd4 Bd6 8. Qd2 0-0 9. 0-0-0 Nc6 10. Bc3 Qe7 11. fxe4 Qxe4 12. Kb1 Be6 13. Bd3 Qa4 14. b3 Qg4 15. Nf3 a5 16. Rhe1 Qf4 17. Qf2 Bd5 18. Bxh7+ Kxh7 19. Rxd5 a4 20. Re4 Qxe4 21. Ng5+ Kg8 22. Nxe4 axb3 23. cxb3 Bb4 24. Bxg7 1-0

[Event "Florianopolis Taca Joao Ribeiro 4th"]
[Site "Florianopolis"]
[Date "1992.12.??"]
[Round "2"]
[White "Costa, Marco Antonio Jr"]
[Black "Gauche, Charles"]
[Result "0-1"]
[ECO "A10"]
[PlyCount "130"]
[EventDate "1992.12.04"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 d5 2. cxd5 Qxd5 3. Nc3 Qa5 4. g3 c6 5. Bg2 Nf6 6. Nf3 e6 7. 0-0 Nbd7 8. d4 Be7 9. Qc2 0-0 10. e4 e5 11. dxe5 Nxe5 12. Nxe5 Qxe5 13. Bf4 Qh5 14. Qe2 Bg4 15. Qe3 Bc5 16. Qe1 Bh3 17. Qd1 Ng4 18. Bf3 Nxf2 19. Rxf2 Bxf2+ 20. Kxf2 Qc5+ 21. Be3 Qb4 22. Qc2 Rae8 23. a3 Qe7 24. Ne2 b6 25. Qc4 Kh8 26. Bd4 c5 27. Bc3 Rd8 28. Nf4 Be6 29. Qe2 Bb3 30. Nh5 f6 31. Kg2 Qf7 32. Nf4 Bc4 33. Qe3 Qe7 34. Re1 Rfe8 35. Bh5 Bf7 36. Qe2 Qb7 37. Bxf7 Qxf7 38. Qb5 Qb7 39. Qc4 Rd7 40. Kg1 Rde7 41. Nh5 Rxe4 42. Rxe4 Rxe4 43. Qd3 Qe7 44. Qd5 Re2 45. Qf5 Re6 46. Nf4 Rd6 47. Qc8+ Rd8 48. Qg4 Qe4 49. Qh4 Rd1+ 50. Kf2 Rc1 51. Qh5 Rc2+ 52. Ne2 h6 53. Qf3 Qg6 54. Qa8+ Kh7 55. Qd5 h5 56. Kf1 h4 57. Nf4 Rc1+ 58. Kg2 h3+ 59. Kxh3 Qh6+ 60. Qh5 Qxh5+ 61. Nxh5 Kg6 62. Nf4+ Kf5 63. Kg2 Rc2+ 64. Kh3 g5 65. Nd5 g4+ 0-1

[Event "Florianopolis Taca Joao Ribeiro 4th"]
[Site "Florianopolis"]
[Date "1992.12.??"]
[Round "5"]
[White "Terra, Augusto Diana"]
[Black "Costa, Marco Antonio Jr"]
[Result "1-0"]
[ECO "C29"]
[PlyCount "75"]
[EventDate "1992.12.04"]
[EventType "swiss"]
[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. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. d3 Qh4+ 6. g3 Nxg3 7. Nf3 Qh5 8. Nxd5 Nxh1 9. Nxc7+ Kd8 10. Nxa8 Bg4 11. Bg2 Bc5 12. Bxh1 Re8 13. Bf4 Nc6 14. d4 Nxd4 15. c3 Bxf3 16. Bxf3 Qxf3 17. Qxf3 Nxf3+ 18. Kf1 Kd7 19. Rd1+ Kc6 20. b4 Bxb4 21. cxb4 Rxa8 22. a4 Rf8 23. Rd6+ Kc7 24. Rd3 Nh4 25. e6+ Kc8 26. Rc3+ Kd8 27. Bg5+ f6 28. Bxh4 Re8 29. Re3 Kc7 30. Bg3+ Kc6 31. b5+ Kd5 32. e7 g5 33. Be1 f5 34. Bb4 Kc4 35. Ba3 f4 36. Re5 Kb3 37. Bd6 Kxa4 38. Rf5 1-0

[Event "Chapeco JASC qual"]
[Site "Chapeco"]
[Date "1991.10.??"]
[Round "1"]
[White "Girardi, Dionei"]
[Black "Costa, Marco Antonio Jr"]
[Result "0-1"]
[ECO "C48"]
[PlyCount "46"]
[EventDate "1991.10.20"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Salete"]
[BlackTeam "Joinville"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "BRA"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. 0-0 Nxb5 6. Nxb5 c6 7. Nc3 d6 8. d3 Bg4 9. h3 Bh5 10. Bg5 Be7 11. Re1 0-0 12. Qe2 Nd7 13. Qe3 Bxg5 14. Nxg5 Qe7 15. Nf3 f5 16. Qg5 Qxg5 17. Nxg5 f4 18. Ne6 Rf6 19. Ng5 Rg6 20. Nxh7 Kxh7 21. g4 fxg3 22. Ne2 gxf2+ 23. Kxf2 Rf8+ 0-1

