[Event "BRA-ch Amateur U1600"]
[Site "Sao Paulo"]
[Date "2017.10.15"]
[Round "7"]
[White "Costa, Leonardo Antonio"]
[Black "Baraldi, Miguel Braga"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "1570"]
[PlyCount "44"]
[EventDate "2017.10.12"]
[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. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a4 e5 7. Nf3 Be7 8. Bc4 0-0 9. h3 Nbd7 10. Be3 Qc7 11. Bb3 Nc5 12. Bxc5 Qxc5 13. 0-0 Bd7 14. Nh2 Bc6 15. Re1 b5 16. a5 b4 17. Nd5 Nxd5 18. exd5 Bd7 19. Qd2 Rfc8 20. Kh1 Bd8 21. f4 exf4 22. Qxf4 Bxa5 1-0

[Event "BRA-ch Amateur U1600"]
[Site "Sao Paulo"]
[Date "2017.10.14"]
[Round "5"]
[White "Costa, Leonardo Antonio"]
[Black "Silva, Fabricio Carvalho"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "1570"]
[BlackElo "1525"]
[PlyCount "81"]
[EventDate "2017.10.12"]
[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 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. Nf3 Nf6 5. Bc4 Bf5 6. 0-0 e6 7. h3 c6 8. d4 Be7 9. Nh4 Bg6 10. Nxg6 hxg6 11. Bf4 Nbd7 12. Re1 Nb6 13. Bb3 Nbd5 14. Nxd5 Nxd5 15. Be5 Bf6 16. Qf3 0-0 17. Rad1 Re8 18. c4 Nb6 19. d5 exd5 20. Bxf6 Qxf6 21. Rxe8+ Rxe8 22. Qxf6 gxf6 23. cxd5 cxd5 24. Bxd5 Nxd5 25. Rxd5 Re1+ 26. Kh2 Re2 27. Rb5 b6 28. Kg3 Kf8 29. Kf3 Rc2 30. g4 Ke7 31. Rb4 g5 32. Kg3 Rd2 33. Rb3 Kd6 34. f3 Ke5 35. a4 Rd5 36. Rb4 f5 37. f4+ gxf4+ 38. Rxf4 Rd3+ 39. Rf3 f4+ 40. Kg2 Rd2+ 41. Rf2 1/2-1/2

[Event "BRA-ch Amateur U1600"]
[Site "Sao Paulo"]
[Date "2017.10.13"]
[Round "3"]
[White "Costa, Leonardo Antonio"]
[Black "Sakiyama, Enzo Tetsuo"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1570"]
[BlackElo "1374"]
[PlyCount "132"]
[EventDate "2017.10.12"]
[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 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb6 5. Nf3 g6 6. Be3 Bg7 7. Qd2 0-0 8. Bh6 Bf5 9. Bxg7 Kxg7 10. d5 Bxb1 11. Rxb1 c6 12. Qd4+ Kg8 13. Qh4 f6 14. Nd4 Qd6 15. Ne6 Rf7 16. Qf4 Qxf4 17. Nxf4 cxd5 18. cxd5 g5 19. Ne6 N8d7 20. Rc1 Rc8 21. Rxc8+ Nxc8 22. Nd8 Rf8 23. Nxb7 Ncb6 24. d6 exd6 25. Nxd6 Rd8 26. Nc4 Nxc4 27. Bxc4+ Kg7 28. f4 Rc8 29. Be2 Rc1+ 30. Bd1 Rb1 31. b3 Rb2 32. 0-0 Rxa2 33. fxg5 fxg5 34. Bf3 Ne5 35. Bd5 Rd2 36. Be6 Rd6 37. Bf5 Rb6 38. Ra1 Rb7 39. Ra5 Re7 40. Ra6 Rf7 41. g4 Rb7 42. Ra5 Re7 43. Kg2 h6 44. Ra6 Rb7 45. Re6 Nf7 46. Rg6+ Kf8 47. Be6 Rc7 48. Bc4 Nd6 49. Rxd6 Kg7 50. Kf3 a5 51. Ra6 Rc5 52. Ke4 Rc7 53. Rxa5 Re7+ 54. Re5 Rd7 55. Rd5 Re7+ 56. Kd4 Re1 57. Re5 Rd1+ 58. Kc5 Rd2 59. Re2 Rd8 60. Bd5 Rc8+ 61. Bc6 Kf6 62. b4 Rc7 63. b5 Ra7 64. b6 Ra5+ 65. Kb4 Ra6 66. b7 Rxc6 1-0

[Event "BRA-ch Amateur U1600"]
[Site "Sao Paulo"]
[Date "2017.10.13"]
[Round "4"]
[White "Da Rocha, Lucas Sampaio"]
[Black "Costa, Leonardo Antonio"]
[Result "0-1"]
[ECO "B30"]
[BlackElo "1570"]
[PlyCount "64"]
[EventDate "2017.10.12"]
[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. g3 Nc6 4. Bg2 Nf6 5. d3 e6 6. 0-0 Be7 7. Nbd2 0-0 8. c3 d5 9. e5 Nd7 10. Re1 a6 11. h4 b5 12. Nf1 Bb7 13. Bf4 a5 14. Qc2 d4 15. N1h2 Qb6 16. Ng4 b4 17. c4 a4 18. Qd2 Qa5 19. Qc1 f5 20. exf6 Nxf6 21. Nxf6+ Bxf6 22. Rxe6 Rae8 23. Qe1 Kf7 24. Bh3 Nd8 25. Rxe8 Rxe8 26. Qd2 Bxf3 27. Bg5 Qb6 28. Qf4 Bb7 29. h5 Ne6 30. Bxe6+ Rxe6 31. b3 a3 32. Bh4 Qc6 0-1

[Event "BRA-ch Amateur U1600"]
[Site "Sao Paulo"]
[Date "2017.10.12"]
[Round "1"]
[White "Costa, Leonardo Antonio"]
[Black "Gomes, Emerson De Lima"]
[Result "0-1"]
[ECO "B10"]
[WhiteElo "1570"]
[BlackElo "1261"]
[PlyCount "150"]
[EventDate "2017.10.12"]
[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. d3 d5 3. Nf3 dxe4 4. Ng5 Nf6 5. Nc3 Bf5 6. Ngxe4 Nxe4 7. Nxe4 Bxe4 8. dxe4 Qxd1+ 9. Kxd1 Nd7 10. c3 e5 11. Be3 Bc5 12. Bxc5 Nxc5 13. f3 0-0-0+ 14. Kc2 Rd7 15. g3 Kc7 16. Be2 Rhd8 17. Rad1 Rxd1 18. Rxd1 Rxd1 19. Bxd1 Kd6 20. b4 Nd7 21. Kd2 b6 22. Ke3 c5 23. Bb3 f6 24. h4 cxb4 25. cxb4 a5 26. a3 Nb8 27. Bd5 axb4 28. axb4 Na6 29. b5 Nc7 30. Bc6 Kc5 31. f4 Nxb5 32. Bd5 Nc7 33. Bg8 h6 34. g4 g5 35. hxg5 hxg5 36. fxg5 fxg5 37. Bf7 b5 38. Kd3 b4 39. Kc2 Nb5 40. Kb3 Nd4+ 41. Kb2 Kb5 42. Bd5 Ka4 43. Bf7 Kb5 44. Bd5 Kc5 45. Bf7 Ne2 46. Kb3 Ng3 47. Bg6 Kd4 48. Kxb4 Nxe4 49. Bf5 Nf2 50. Kb3 Ke3 51. Kc3 e4 52. Be6 Kf3 53. Kd2 e3+ 54. Kc2 Ne4 55. Kd1 Kf2 56. Bc4 e2+ 57. Bxe2 Nc3+ 58. Kd2 Nxe2 59. Kd3 Kf3 60. Kd2 Nf4 61. Ke1 Kxg4 62. Kf2 Kh3 63. Kg1 g4 64. Kh1 g3 65. Kg1 g2 66. Kf2 Kh2 67. Kf3 g1Q 68. Ke4 Qg5 69. Kd4 Kg3 70. Kc4 Kf3 71. Kd4 Qd5+ 72. Kc3 Ke3 73. Kb4 Kd3 74. Ka4 Qb7 75. Ka3 Kc3 0-1

[Event "BRA-ch Amateur U1600"]
[Site "Sao Paulo"]
[Date "2017.10.12"]
[Round "2"]
[White "Scardini, Leonardo"]
[Black "Costa, Leonardo Antonio"]
[Result "0-1"]
[ECO "E38"]
[WhiteElo "1311"]
[BlackElo "1570"]
[PlyCount "54"]
[EventDate "2017.10.12"]
[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 e6 3. Nc3 Bb4 4. Qc2 c5 5. e3 Nc6 6. Nf3 d5 7. cxd5 exd5 8. dxc5 Ne4 9. Bd2 Nxd2 10. Qxd2 0-0 11. a3 Qa5 12. Rc1 Bxc5 13. b4 Nxb4 14. axb4 Bxb4 15. Be2 Be6 16. 0-0 Rac8 17. Ra1 Qc5 18. Qc2 Bxc3 19. Rac1 d4 20. exd4 Bxd4 21. Qd2 Bxf2+ 22. Rxf2 Qxc1+ 23. Rf1 Qxd2 24. Nxd2 Rc2 25. Rd1 Rd8 26. Nf3 Rxd1+ 27. Bxd1 Rc1 0-1

[Event "BRA-ch Amateur U2000"]
[Site "Sao Paulo"]
[Date "2016.05.29"]
[Round "7"]
[White "Costa, Leonardo Antonio"]
[Black "Caporale, Giuseppe Guido"]
[Result "0-1"]
[ECO "B90"]
[BlackElo "1738"]
[PlyCount "76"]
[EventDate "2016.05.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a4 b6 7. f3 Bb7 8. Be3 e6 9. Qd2 Be7 10. Bc4 0-0 11. Bxe6 fxe6 12. Nxe6 Qd7 13. Nxf8 Bxf8 14. Bxb6 Nc6 15. 0-0 Ne5 16. Bd4 Qf7 17. Bxe5 dxe5 18. Rfd1 Be7 19. Nd5 Nxd5 20. exd5 Rd8 21. c4 Bc5+ 22. Kh1 Rf8 23. b4 Bd4 24. Rab1 Qc7 25. Qd3 Bc8 26. g4 h5 27. h3 Qe7 28. Qg6 hxg4 29. fxg4 Qh4 30. Qh5 Qg3 31. Rf1 Bf2 32. g5 Bxh3 33. Rxf2 Rxf2 34. Qe8+ Rf8 35. Qxf8+ Kxf8 36. Rb2 Bf5 37. Re2 Qf3+ 38. Kg1 Qxe2 0-1

[Event "BRA-ch Amateur U2000"]
[Site "Sao Paulo"]
[Date "2016.05.28"]
[Round "6"]
[White "De Freitas, Rames Fialho"]
[Black "Costa, Leonardo Antonio"]
[Result "1-0"]
[ECO "D03"]
[WhiteElo "1935"]
[PlyCount "85"]
[EventDate "2016.05.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 d5 4. Nbd2 c5 5. e3 Nbd7 6. c3 Be7 7. Bd3 c4 8. Bc2 b5 9. e4 Bb7 10. e5 Ne4 11. Bxe7 Qxe7 12. Qe2 Nxd2 13. Nxd2 a5 14. 0-0 0-0 15. Qh5 f5 16. f4 g6 17. Qh3 g5 18. fxg5 Qxg5 19. Nf3 Qg7 20. Kh1 Kh8 21. Nh4 Rg8 22. Rf4 Nf8 23. Raf1 Qe7 24. g4 Rxg4 25. Rxg4 fxg4 26. Qxg4 Bc6 27. Rg1 Qf7 28. Nf3 Ra7 29. Ng5 Qg8 30. Qh5 Rg7 31. Rg3 Bd7 32. h4 Ng6 33. Qh6 Re7 34. Bxg6 Qg7 35. Qxg7+ Rxg7 36. Bxh7 Rxh7 37. Nxh7 Kxh7 38. Kg2 b4 39. Kf3 Ba4 40. Kf4 Bc2 41. Kg5 a4 42. cxb4 a3 43. Rxa3 1-0

[Event "BRA-ch Amateur U2000"]
[Site "Sao Paulo"]
[Date "2016.05.28"]
[Round "5"]
[White "Felix, Raimundo Nascimento"]
[Black "Costa, Leonardo Antonio"]
[Result "1-0"]
[ECO "B81"]
[WhiteElo "1930"]
[PlyCount "103"]
[EventDate "2016.05.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 b5 7. g4 Bb7 8. Bg2 e6 9. Be3 d5 10. g5 Nxe4 11. Nxe4 dxe4 12. Qh5 g6 13. Qg4 Bg7 14. Rd1 Qa5+ 15. c3 0-0 16. a3 Nc6 17. 0-0 Ne5 18. Qg3 Nc4 19. Bc1 Be5 20. Qg4 Nd6 21. h4 Rad8 22. h5 Nf5 23. hxg6 hxg6 24. Bxe4 Nxd4 25. Bxb7 Nf5 26. Qe4 Qb6 27. Qc6 Qxc6 28. Bxc6 Rd6 29. Bb7 Rfd8 30. Rde1 Bg7 31. Bf4 Rb6 32. Bc7 Rxb7 33. Bxd8 Rd7 34. Rd1 Rb7 35. Kg2 Nh4+ 36. Kg3 Nf5+ 37. Kg4 Rb8 38. Bc7 Re8 39. Rd8 Kf8 40. Rfd1 Rxd8 41. Rxd8+ Ke7 42. Ra8 Kd7 43. Ba5 Nd6 44. Rxa6 Nc4 45. Ra7+ Ke8 46. Bb4 Ne5+ 47. Kg3 Nc6 48. Rb7 e5 49. Rxb5 e4 50. Kf4 e3 51. fxe3 Ne5 52. Rxe5+ 1-0

[Event "BRA-ch Amateur U2000"]
[Site "Sao Paulo"]
[Date "2016.05.27"]
[Round "3"]
[White "Costa, Leonardo Antonio"]
[Black "Lunelli, Neuri Antonio"]
[Result "0-1"]
[ECO "B10"]
[BlackElo "1800"]
[PlyCount "130"]
[EventDate "2016.05.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. d3 g6 4. Nc3 Bg7 5. Be2 Nd7 6. exd5 cxd5 7. 0-0 Ngf6 8. Bf4 a6 9. Qd2 0-0 10. Bh6 e5 11. Bxg7 Kxg7 12. Kh1 Qc7 13. Nh4 Nc5 14. f4 d4 15. Nd1 exf4 16. c3 Ne6 17. Rc1 Qd6 18. cxd4 Nxd4 19. Nf2 Nxe2 20. Qxe2 Re8 21. Qd2 Bd7 22. Rfe1 Bc6 23. Nh3 Nd5 24. Rc4 Rxe1+ 25. Qxe1 Re8 26. Qd2 Qe7 27. Nf3 Qe3 28. Re4 Rxe4 29. dxe4 Qxe4 30. Qd4+ Qxd4 31. Nxd4 Bd7 32. Ng5 h6 33. Ne4 b6 34. Kg1 f5 35. Nd2 Kf6 36. Nc4 b5 37. Nd2 Ke5 38. N2f3+ Kd6 39. Nb3 g5 40. h4 g4 41. Nfd4 Nb4 42. Nc1 Kd5 43. Nde2 Ke4 44. a3 Nd5 45. Kf2 g3+ 46. Ke1 Ne3 47. Nc3+ Kd4 48. N3e2+ Ke4 49. Nc3+ Ke5 50. Nd3+ Kd4 51. Nxf4 Bc6 52. Nce2+ Ke4 53. Kd2 Nc4+ 54. Kc3 Ke3 55. Nd4 Be4 56. Nde6 Kf2 57. Ng5 hxg5 58. hxg5 Ne5 59. Kd4 Nf7 60. g6 Nh6 61. g7 Bxg2 62. Ke5 Be4 63. Kf6 g2 64. Nxg2 Bxg2 65. Kg6 Ng8 0-1

[Event "BRA-ch Amateur U2000"]
[Site "Sao Paulo"]
[Date "2016.05.27"]
[Round "4"]
[White "Costa, Leonardo Antonio"]
[Black "Sato, Claudio Takeshi"]
[Result "1-0"]
[ECO "C00"]
[BlackElo "1464"]
[PlyCount "63"]
[EventDate "2016.05.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Qe2 dxe4 4. dxe4 Nc6 5. c3 Bd6 6. g3 Nf6 7. Be3 Nxe4 8. Nd2 Nxd2 9. Bxd2 0-0 10. 0-0-0 Qf6 11. h4 Bc5 12. Nf3 e5 13. Bg5 Qe6 14. b4 Be7 15. Bh3 f5 16. Be3 h6 17. Rhe1 Qf6 18. Rg1 f4 19. Bxc8 fxe3 20. Bxb7 Kh8 21. Bxa8 Rxa8 22. Qxe3 Rf8 23. Rd3 Qe6 24. Qe2 e4 25. Nd4 Nxd4 26. Rxd4 Bf6 27. Rxe4 Qc6 28. Qc4 Qb6 29. Re2 Rc8 30. Rge1 Rf8 31. Re8 Qd6 32. R1e6 1-0

[Event "BRA-ch Amateur U2000"]
[Site "Sao Paulo"]
[Date "2016.05.26"]
[Round "1"]
[White "Costa, Leonardo Antonio"]
[Black "Silva, Vinicius Parente"]
[Result "0-1"]
[ECO "B72"]
[BlackElo "1874"]
[PlyCount "100"]
[EventDate "2016.05.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 8. Qd2 0-0 9. Nb3 Be6 10. Bh6 Rc8 11. Bxg7 Kxg7 12. f3 Qb6 13. g4 Ne5 14. h4 h5 15. g5 Nfd7 16. 0-0-0 Bc4 17. Nd5 Bxd5 18. Qxd5 Rc7 19. f4 Qe3+ 20. Qd2 Qxd2+ 21. Nxd2 Nc6 22. Nc4 Rfc8 23. c3 a6 24. Ne3 b5 25. Rhf1 Nc5 26. Nd5 Rb7 27. Bf3 b4 28. f5 bxc3 29. Nxc3 Ne5 30. f6+ exf6 31. gxf6+ Kh7 32. Be2 Rb6 33. Kb1 Rcb8 34. Rd2 a5 35. Nd5 R6b7 36. Rf4 a4 37. a3 Rb3 38. Bd1 Rxa3 39. Rd4 Rd3 40. Rxd3 Nexd3 41. Rf3 Rxb2+ 42. Ka1 Rd2 43. Nc3 a3 44. Rg3 Nf2 45. Rg1 Nxd1 46. Nxd1 Nxe4 47. Rf1 d5 48. Ne3 Nc3 49. Rf2 Rxf2 50. Nc2 Rf1+ 0-1

[Event "BRA-ch Amateur U2000"]
[Site "Sao Paulo"]
[Date "2016.05.26"]
[Round "2"]
[White "Vieira, Alexandre Letizio"]
[Black "Costa, Leonardo Antonio"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "1859"]
[PlyCount "41"]
[EventDate "2016.05.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d6 3. Nf3 g6 4. e3 Nh5 5. Bg3 Nxg3 6. hxg3 Bg4 7. Be2 e6 8. c3 Bg7 9. Nbd2 c5 10. Qa4+ Nc6 11. Bb5 Bxf3 12. Nxf3 Qb6 13. dxc5 dxc5 14. Ng5 h6 15. Nf3 Rc8 16. 0-0 0-0 17. Bxc6 Qxc6 18. Qc2 Rfd8 19. Rad1 Qb6 20. b3 Rc6 21. Rxd8+ 1/2-1/2

