[Event "Catarinense-ch"]
[Site "Itajai"]
[Date "2023.11.26"]
[Round "5"]
[White "Da Costa, Michael David"]
[Black "Da Silva, Guilherme Eduardo"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1387"]
[BlackElo "1800"]
[PlyCount "54"]
[EventDate "2023.11.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CB50_2023"]
[SourceDate "2023.12.13"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.13"]
[SourceQuality "1"]

1. d4 c5 2. c3 d5 3. Nf3 Nc6 4. Bf4 Qb6 5. Qb3 c4 6. Qxb6 axb6 7. Nbd2 Bf5 8. e3 e6 9. Be2 b5 10. Nh4 Bg6 11. Nxg6 hxg6 12. e4 Nf6 13. Bf3 b4 14. exd5 Nxd5 15. Bxd5 exd5 16. Kd1 b5 17. Re1+ Kd7 18. Nf1 Bd6 19. Bxd6 Kxd6 20. h3 b3 21. a3 b4 22. cxb4 Nxb4 23. Kd2 Nc2 24. Kc3 Nxe1 25. Rxe1 Rhe8 26. Rxe8 Rxe8 27. Ne3 f5 0-1

[Event "Catarinense-ch"]
[Site "Itajai"]
[Date "2023.11.25"]
[Round "4"]
[White "Cordeiro, Marco Aurelio Zaror"]
[Black "Da Costa, Michael David"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2091"]
[BlackElo "1387"]
[PlyCount "51"]
[EventDate "2023.11.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CB50_2023"]
[SourceDate "2023.12.13"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.13"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 d6 5. d3 0-0 6. h3 h6 7. a3 Ba5 8. b4 Bb6 9. Na4 Bd7 10. Nxb6 axb6 11. Bb3 Nc6 12. c3 Qc8 13. 0-0 Be6 14. Bc2 Ne8 15. Nh4 Qd8 16. Nf5 Bxf5 17. exf5 d5 18. f4 d4 19. b5 Ne7 20. fxe5 c5 21. c4 Kh7 22. Qf3 Qd7 23. f6 Ng8 24. Qe4+ g6 25. Bd1 Rb8 26. Bg4 1-0

[Event "Catarinense-ch"]
[Site "Itajai"]
[Date "2023.11.25"]
[Round "3"]
[White "Da Costa, Michael David"]
[Black "Penna, Flavio R Crautchych"]
[Result "1/2-1/2"]
[ECO "D94"]
[WhiteElo "1387"]
[BlackElo "1445"]
[PlyCount "67"]
[EventDate "2023.11.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CB50_2023"]
[SourceDate "2023.12.13"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. e3 Bg7 5. Nf3 0-0 6. Bd2 e6 7. c5 c6 8. Bd3 Nbd7 9. b4 Re8 10. 0-0 e5 11. dxe5 Nxe5 12. Nxe5 Rxe5 13. Rc1 d4 14. Ne2 dxe3 15. Bxe3 Rd5 16. Nf4 Rd7 17. Qc2 g5 18. Bf5 gxf4 19. Bxd7 fxe3 20. Bxc8 exf2+ 21. Qxf2 Rxc8 22. Rcd1 Qc7 23. Qf5 h5 24. h3 Rd8 25. Qg5 Rxd1 26. Rxd1 Nd5 27. Qxh5 Qe7 28. Qf3 Nxb4 29. Qf5 Nd5 30. Qc8+ Qf8 31. Qxb7 Qxc5+ 32. Kh1 Ne3 33. Qb8+ Kh7 34. Qb1+ 1/2-1/2

[Event "Catarinense-ch"]
[Site "Itajai"]
[Date "2023.11.24"]
[Round "2"]
[White "Aguiar, Enzo Vieira"]
[Black "Da Costa, Michael David"]
[Result "1/2-1/2"]
[ECO "A07"]
[BlackElo "1387"]
[PlyCount "45"]
[EventDate "2023.11.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CB50_2023"]
[SourceDate "2023.12.13"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.13"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 c6 3. Bg2 Nf6 4. Nc3 Bg4 5. e3 e6 6. 0-0 Be7 7. d3 Nbd7 8. e4 0-0 9. e5 Nxe5 10. Nxe5 Bxd1 11. Rxd1 Qc7 12. f4 Rfe8 13. Re1 Qb6+ 14. Be3 Qc7 15. Na4 Qa5 16. b3 Qc7 17. c4 dxc4 18. Nxc4 Red8 19. Red1 Nd5 20. Re1 Nb6 21. Bxb6 axb6 22. Naxb6 Bc5+ 23. Kf1 1/2-1/2

[Event "Catarinense-ch"]
[Site "Itajai"]
[Date "2023.11.24"]
[Round "1"]
[White "Da Costa, Michael David"]
[Black "Volkmann, Andre Jordi"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1387"]
[BlackElo "2092"]
[PlyCount "101"]
[EventDate "2023.11.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CB50_2023"]
[SourceDate "2023.12.13"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.13"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 d5 3. Bxf6 exf6 4. e3 Bf5 5. c4 Bxb1 6. Rxb1 Bb4+ 7. Ke2 Nc6 8. a3 Be7 9. c5 a5 10. Ke1 0-0 11. Bd3 g6 12. Ne2 f5 13. Qb3 Qd7 14. Nf4 Rfd8 15. h4 Bf6 16. Kd2 Ne7 17. Bb5 c6 18. Be2 h6 19. Rbg1 Kf8 20. g4 fxg4 21. Bxg4 Qc7 22. Qc2 Bxd4 23. Nxg6+ Nxg6 24. exd4 Qf4+ 25. Kc3 Qe4 26. Qxe4 dxe4 27. Re1 Ne7 28. Rd1 f5 29. Bh5 Nd5+ 30. Kd2 Nf4 31. Be2 Rxd4+ 32. Ke3 Rxd1 33. Bxd1 Nd5+ 34. Kd4 Re8 35. Rg1 Nf4 36. Ke3 Nd3 37. Bh5 Re6 38. Bg6 f4+ 39. Kd4 Nxf2 40. Bf5 Re8 41. Re1 e3 42. Re2 Nd1 43. Be4 Nf2 44. Bf3 Kg7 45. b4 axb4 46. axb4 Kf6 47. b5 Rd8+ 48. Kc3 Ke5 49. bxc6 bxc6 50. Bxc6 Rc8 51. Bf3 0-1

[Event "Florianopolis op-B 04"]
[Site "Florianopolis"]
[Date "2023.05.01"]
[Round "6"]
[White "De Souza, Lucio Teixeira"]
[Black "Da Costa, Michael David"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "1546"]
[BlackElo "1386"]
[PlyCount "81"]
[EventDate "2023.04.28"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 c6 3. e3 Bg4 4. Bb2 Nf6 5. Be2 e6 6. 0-0 Be7 7. h3 Bh5 8. d3 0-0 9. Ne5 Bxe2 10. Qxe2 Nbd7 11. f4 Bc5 12. Kh1 Qb6 13. Nxd7 Nxd7 14. Qg4 g6 15. f5 exf5 16. Rxf5 f6 17. Rf1 Rf7 18. d4 Bf8 19. Nc3 f5 20. Qg3 Nf6 21. a3 Qc7 22. Qxc7 Rxc7 23. Rae1 Re8 24. Bc1 Nh5 25. Kg1 Bd6 26. Ne2 Rce7 27. Kf2 Kg7 28. g3 Nf6 29. Nc3 Ne4+ 30. Nxe4 fxe4 31. Kg2 Rf7 32. Rxf7+ Kxf7 33. Rf1+ Ke6 34. Rf2 Rf8 35. Rxf8 Bxf8 36. c3 a5 37. Kf2 Bd6 38. Bb2 Kf5 39. Bc1 b6 40. Bb2 h5 41. Bc1 1/2-1/2

[Event "Florianopolis op-B 04"]
[Site "Florianopolis"]
[Date "2023.04.30"]
[Round "5"]
[White "Da Costa, Michael David"]
[Black "Alonso, Leonardo Espinha"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "1386"]
[BlackElo "1800"]
[PlyCount "63"]
[EventDate "2023.04.28"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nc3 c6 4. a4 e6 5. e3 Nf6 6. Bxc4 Be7 7. Nf3 0-0 8. 0-0 Bb4 9. Qb3 Bd6 10. Bd2 Nbd7 11. Ne2 Nb6 12. Bd3 Qe7 13. a5 Nbd7 14. Qc2 h6 15. e4 e5 16. Bc3 Re8 17. Rfe1 Qd8 18. Rad1 Qc7 19. Ng3 b6 20. Bc4 bxa5 21. Ba2 exd4 22. Nxd4 Bb7 23. Ndf5 Be5 24. Qb3 Nf8 25. Bxe5 Rxe5 26. Nd6 Re7 27. Ngf5 Rd7 28. Qg3 Ne8 29. Nxh6+ Kh7 30. Nhxf7 g6 31. Qh4+ Kg7 32. Qh8# 1-0

[Event "Florianopolis op-B 04"]
[Site "Florianopolis"]
[Date "2023.04.30"]
[Round "4"]
[White "Ferreira, Carlos Eduardo"]
[Black "Da Costa, Michael David"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "1562"]
[BlackElo "1386"]
[PlyCount "90"]
[EventDate "2023.04.28"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nf6 5. h3 Nc6 6. c3 e6 7. Nf3 Be7 8. 0-0 0-0 9. Re1 a6 10. a4 Na5 11. Nbd2 Bd7 12. Ne5 Rc8 13. Ndf3 Nc4 14. Qe2 Nd6 15. Bg5 Nfe4 16. Nxd7 Qxd7 17. Ne5 Qd8 18. Bxe7 Qxe7 19. c4 Nf6 20. c5 Nde8 21. b4 Nd7 22. b5 Nxe5 23. Qxe5 a5 24. Qxd5 Nf6 25. Qb3 Qd7 26. Rad1 Nd5 27. Bb1 Rfd8 28. Qd3 Nf6 29. Re3 g6 30. Ba2 Nd5 31. Bxd5 Qxd5 32. Re5 Qxe5 33. dxe5 Rxd3 34. Rxd3 Rxc5 35. Rd7 Rc4 36. Rxb7 Rxa4 37. b6 Rb4 38. Ra7 Rxb6 39. Rxa5 Rb2 40. f3 Kg7 41. Ra7 Re2 42. Ra5 Rb2 43. Kh2 Kg8 44. Kg3 Kg7 45. h4 h5 1/2-1/2

[Event "Florianopolis op-B 04"]
[Site "Florianopolis"]
[Date "2023.04.29"]
[Round "3"]
[White "Da Costa, Michael David"]
[Black "De Oliveira, Pedro Gustavo Cruz"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "1386"]
[BlackElo "1726"]
[PlyCount "59"]
[EventDate "2023.04.28"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Bf4 Nc6 6. e3 Ne4 7. Nxe4 dxe4 8. Ne2 Bg4 9. a3 Qa5+ 10. b4 Bxe2 11. Bxe2 Qd5 12. 0-0 g6 13. Qc2 Bg7 14. Bc4 Qf5 15. Rac1 0-0 16. Qb1 Qh5 17. Qxe4 Bh6 18. Bxh6 Qxh6 19. Bd5 Rab8 20. Bxc6 bxc6 21. Rxc6 Rbc8 22. Rfc1 f5 23. Qe6+ Kh8 24. Rxc8 Rxc8 25. Rxc8+ Qf8 26. Rxf8+ Kg7 27. Qxe7+ Kh6 28. Rh8 Kh5 29. Qxh7+ Kg4 30. Qh4# 1-0

[Event "Florianopolis op-B 04"]
[Site "Florianopolis"]
[Date "2023.04.29"]
[Round "2"]
[White "Rodrigues, Julliano de Araujo"]
[Black "Da Costa, Michael David"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "1737"]
[BlackElo "1386"]
[PlyCount "49"]
[EventDate "2023.04.28"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Bg5 c6 5. Nc3 Nbd7 6. e3 Be7 7. cxd5 exd5 8. Bd3 0-0 9. 0-0 h6 10. Bxf6 Nxf6 11. Ne5 Bd6 12. f4 c5 13. Kh1 cxd4 14. exd4 Qb6 15. Qd2 Bd7 16. Nxd5 Qd8 17. Nxf6+ gxf6 18. f5 Kg7 19. Rf3 Rh8 20. Rg3+ Kf8 21. Nxf7 Kxf7 22. Bc4+ Kf8 23. Rg8+ Rxg8 24. Qxh6+ Ke8 25. Qh5+ 1-0

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.29"]
[Round "10"]
[White "Da Costa, Michael David"]
[Black "Nunes, Alice"]
[Result "1/2-1/2"]
[ECO "E17"]
[WhiteElo "1396"]
[BlackElo "1800"]
[PlyCount "41"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 b6 5. Bg2 Bb7 6. 0-0 Be7 7. Nbd2 0-0 8. b3 Nbd7 9. Bb2 c5 10. dxc5 bxc5 11. Ne5 Nxe5 12. Bxe5 Bd6 13. Bxd6 Qxd6 14. Qc2 Rab8 15. cxd5 exd5 16. e3 Rfe8 17. Rfd1 Qc7 18. Rac1 Rbc8 19. Nf3 Ne4 20. Nd2 Nf6 21. Nf3 1/2-1/2

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.28"]
[Round "9"]
[White "Kawamoto, Victor Misao Buriti"]
[Black "Da Costa, Michael David"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "1800"]
[BlackElo "1396"]
[PlyCount "29"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. c3 Bd6 7. Bd3 Be6 8. Qc2 g6 9. Bh6 Bf8 10. Bxf8 Kxf8 11. Ne2 Qb6 12. 0-0 Na6 13. Nf4 Nc7 14. Nxe6+ Nxe6 15. Rfe1 1-0

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.27"]
[Round "7"]
[White "Carvalho, Eduardo Meireles"]
[Black "Da Costa, Michael David"]
[Result "0-1"]
[ECO "B11"]
[WhiteElo "1812"]
[BlackElo "1396"]
[PlyCount "21"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. e4 d5 2. Nc3 c6 3. d3 dxe4 4. dxe4 Qxd1+ 5. Nxd1 e5 6. Nf3 Bd6 7. Ne3 f6 8. Bd3 Be6 9. Bd2 Nd7 10. Nc4 Bc7 11. Be3 0-1

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.26"]
[Round "5"]
[White "Biazon, Natalia De Oliveira"]
[Black "Da Costa, Michael David"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1813"]
[BlackElo "1396"]
[PlyCount "104"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 c5 4. c4 e6 5. Nf3 cxd4 6. Nxd4 a6 7. cxd5 Nxd5 8. Be2 Bb4+ 9. Nd2 Qa5 10. N4b3 Qd8 11. Bg3 Bd7 12. 0-0 Bc6 13. a3 Be7 14. Nf3 0-0 15. Qc2 Nf6 16. Rfd1 Qe8 17. Nfd4 Be4 18. Bd3 Bxd3 19. Qxd3 Nc6 20. Nxc6 Qxc6 21. Rac1 Qb6 22. Bc7 Qa7 23. Be5 Rfd8 24. Qe2 Rxd1+ 25. Qxd1 Rd8 26. Qe2 Qa8 27. Bxf6 Bxf6 28. Qc2 Be5 29. Nd4 Qb8 30. g3 Bxd4 31. exd4 g6 32. Qc3 Qd6 33. Qb3 b5 34. Qf3 Qxd4 35. b4 Qd3 36. Qxd3 Rxd3 37. Ra1 Kf8 38. Kf1 Ke7 39. Ke2 Rb3 40. Kd2 h5 41. Ra2 Kd6 42. Kc2 Rf3 43. Kd1 Rd3+ 44. Ke2 Rd4 45. Rd2 Rxd2+ 46. Kxd2 Ke5 47. Ke3 Kd5 48. Kd3 f6 49. f3 g5 50. f4 gxf4 51. gxf4 e5 52. fxe5 fxe5 0-1

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.24"]
[Round "3"]
[White "Casalaspro, Mathias Andre"]
[Black "Da Costa, Michael David"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "1806"]
[BlackElo "1396"]
[PlyCount "59"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Be3 Bf5 7. Bd3 Bxd3 8. Qxd3 Bd6 9. Ne2 Nd7 10. c4 0-0 11. 0-0-0 Re8 12. Nc3 Bf8 13. Kb1 g6 14. g4 Bg7 15. h4 Nf8 16. f4 h6 17. d5 Qe7 18. Rhe1 cxd5 19. Nxd5 Qd8 20. f5 g5 21. Bd4 Rxe1 22. Rxe1 Nd7 23. Re7 Ne5 24. Bxe5 fxe5 25. f6 Bh8 26. Rd7 Qa5 27. Ne7+ Kf8 28. Ng6+ fxg6 29. Qd6+ Kg8 30. Qd5+ 1-0

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.24"]
[Round "2"]
[White "Da Costa, Michael David"]
[Black "Franco Franchi, Sol Larissa"]
[Result "1-0"]
[ECO "D55"]
[WhiteElo "1396"]
[BlackElo "1047"]
[PlyCount "81"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 e6 3. c4 d5 4. e3 Be7 5. Nc3 0-0 6. Nf3 b6 7. cxd5 exd5 8. Bd3 Bg4 9. h3 Bh5 10. 0-0 Bg6 11. Ne5 c6 12. Rc1 Nfd7 13. Nxg6 fxg6 14. Bf4 Nf6 15. Ne2 Bd6 16. a3 Nh5 17. Bxd6 Qxd6 18. Bb1 Nd7 19. Rc3 Rac8 20. Nc1 Nhf6 21. Nd3 Ne4 22. Rc1 Rfe8 23. Nb4 c5 24. dxc5 Rxc5 25. Rxc5 Ndxc5 26. Qxd5+ Qxd5 27. Nxd5 Nd2 28. Rd1 Nc4 29. b4 Na4 30. Ba2 b5 31. Bxc4 bxc4 32. Rc1 Rd8 33. e4 Nb2 34. Rc2 Na4 35. Rxc4 Kf7 36. Rc7+ Kf8 37. Rxa7 Nb2 38. b5 Nc4 39. b6 Nd6 40. b7 Rb8 41. Ra8 1-0

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.23"]
[Round "1"]
[White "Raimundo, Airton Carlos Nunes"]
[Black "Da Costa, Michael David"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "2023"]
[BlackElo "1396"]
[PlyCount "139"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Ng5 Bf5 6. Bc4 e6 7. Ne2 h6 8. Nf3 Bd6 9. 0-0 0-0 10. Ne5 Nbd7 11. Bf4 Qc7 12. Nxd7 Qxd7 13. Bxd6 Qxd6 14. Ng3 Bh7 15. Re1 Rfd8 16. c3 c5 17. dxc5 Qxc5 18. Qe2 Rd6 19. Rad1 Rad8 20. Rxd6 Qxd6 21. Bb3 Qc7 22. Rd1 Rd6 23. Nf1 Qd8 24. Ne3 Rxd1+ 25. Qxd1 Qxd1+ 26. Bxd1 Bd3 27. f3 Kf8 28. Kf2 Ke7 29. Bb3 Bb5 30. Nc4 Be8 31. Na5 b6 32. Nc4 Nd7 33. Ba4 f6 34. b4 Nb8 35. Bxe8 Kxe8 36. a4 Ke7 37. Ke3 e5 38. Ke4 Ke6 39. Ne3 g6 40. g4 Nc6 41. h4 Ne7 42. c4 f5+ 43. Kd3 Nc6 44. Nc2 Kd6 45. h5 gxh5 46. gxf5 h4 47. Ke3 h3 48. Kf2 Nd4 49. Ne3 h5 50. Kg3 h2 51. Kxh2 Nxf3+ 52. Kg3 Nd4 53. Kh4 Nc6 54. Kxh5 Nxb4 55. Kg6 Nd3 56. f6 Nf4+ 57. Kf5 Nh5 58. Nd5 Nxf6 59. Kxf6 e4 60. Ne3 Kc5 61. Ke5 Kb4 62. Kxe4 Kxa4 63. Kd5 Kb3 64. Kc6 Kb4 65. Kb7 Kc5 66. Ka6 Kc6 67. Nc2 Kc5 68. Na3 Kb4 69. Kxa7 b5 70. cxb5 1-0

[Event "Florianopolis Autumn op U1800"]
[Site "Florianopolis"]
[Date "2022.05.15"]
[Round "6"]
[White "Da Costa, Michael David"]
[Black "Dos Reis, Davi do Amaral"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1401"]
[PlyCount "74"]
[EventDate "2022.05.13"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 d5 3. Bxf6 exf6 4. e3 Nc6 5. c4 Be6 6. c5 Qd7 7. Bb5 a6 8. Qa4 Be7 9. Nc3 0-0 10. Bxc6 bxc6 11. Nge2 Bf5 12. 0-0 g6 13. Ng3 Be6 14. Qd1 Kg7 15. h3 f5 16. f4 Bh4 17. Nh1 h5 18. g3 Bf6 19. h4 Rh8 20. Nf2 Be7 21. Nd3 f6 22. Qa4 Qe8 23. Qc2 g5 24. Ne2 Kg6 25. Nec1 Bd7 26. Nb3 Bf8 27. Na5 Qxe3+ 28. Kg2 Qxd4 29. Rfe1 gxh4 30. Rad1 Kh6 31. Ne5 Qb4 32. Nxd7 Qxa5 33. Qxf5 Rg8 34. Nxf6 Rxg3+ 35. Kh2 Kg7 36. Nxh5+ Kg8 37. Nxg3 Qxa2 1-0

[Event "Florianopolis Autumn op U1800"]
[Site "Florianopolis"]
[Date "2022.05.15"]
[Round "5"]
[White "Santos, Renan de Souza"]
[Black "Da Costa, Michael David"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1639"]
[BlackElo "1401"]
[PlyCount "83"]
[EventDate "2022.05.13"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. Nf3 Nf6 5. Bc4 Bf5 6. 0-0 e6 7. d3 Be7 8. Bg5 h6 9. Bh4 0-0 10. Re1 Nbd7 11. Qe2 Bb4 12. Qd2 a6 13. a3 Be7 14. Qe2 b5 15. Ba2 Bg4 16. Rad1 c5 17. h3 Bxf3 18. Qxf3 Qc7 19. Ne4 Rac8 20. c3 Nxe4 21. Qxe4 Bxh4 22. Qxh4 Nf6 23. Re3 Nd5 24. Rg3 Qf4 25. Rg4 Qf6 26. Qg3 Kh8 27. d4 c4 28. Bb1 g5 29. Re1 Rg8 30. Re5 Rg7 31. Be4 Rd8 32. Qh2 h5 33. h4 gxh4 34. Rxh5+ Kg8 35. Rgxh4 Kf8 36. Bxd5 exd5 37. Qc7 Rg8 38. Rf4 Qe7 39. Qc6 Qe1+ 40. Kh2 Qd2 41. Qh6+ Ke8 42. Re5+ 1-0

[Event "Florianopolis Autumn op U1800"]
[Site "Florianopolis"]
[Date "2022.05.14"]
[Round "3"]
[White "Da Costa, Michael David"]
[Black "Brand, Leticia Soethe"]
[Result "0-1"]
[ECO "D37"]
[WhiteElo "1401"]
[BlackElo "1642"]
[PlyCount "112"]
[EventDate "2022.05.13"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. Bf4 0-0 6. e3 b6 7. cxd5 exd5 8. Be2 c5 9. 0-0 Be6 10. h3 Bd6 11. Bxd6 Qxd6 12. Rc1 a6 13. Bd3 c4 14. Bb1 b5 15. e4 dxe4 16. Nxe4 Nxe4 17. Bxe4 Bd5 18. Qc2 h6 19. Rfe1 Nc6 20. a3 Rfd8 21. Bxd5 Qxd5 22. Ne5 Nxd4 23. Qc3 Re8 24. Ng4 Ne2+ 25. Rxe2 Rxe2 26. Qg3 Kh8 27. Ne3 Qd2 28. Rd1 Re1+ 29. Rxe1 Qxe1+ 30. Kh2 Re8 31. Qf3 Kg8 32. Qf5 Qd2 33. Nd5 Qxb2 34. Qd7 Qe5+ 35. g3 Qe6 36. Qb7 Qe2 37. Kg2 Qe4+ 38. Kh2 c3 39. Qd7 c2 40. Qc7 Qxd5 41. Qxc2 Re1 42. Qc8+ Kh7 43. Qc2+ g6 44. g4 Rh1+ 45. Kg3 Qe5+ 46. Kg2 Qh2+ 47. Kf3 Qxh3+ 48. Kf4 Qh2+ 49. Kf3 Qe5 50. Qa2 Rh3+ 51. Kg2 Qh2+ 52. Kf1 Qh1+ 53. Ke2 Qe4+ 54. Kd1 Qd3+ 55. Kc1 Rh1+ 56. Kb2 Qe2+ 0-1

[Event "Florianopolis Autumn op U1800"]
[Site "Florianopolis"]
[Date "2022.05.14"]
[Round "2"]
[White "Duarte, Giovanna Torqui"]
[Black "Da Costa, Michael David"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1076"]
[BlackElo "1401"]
[PlyCount "114"]
[EventDate "2022.05.13"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 c5 4. c3 Nc6 5. Bd3 c4 6. Bc2 Bg4 7. Nf3 e6 8. h3 Bh5 9. 0-0 Bd6 10. Bxd6 Qxd6 11. Nbd2 b5 12. Re1 0-0 13. e4 dxe4 14. Nxe4 Nxe4 15. Bxe4 Bg6 16. Bxg6 hxg6 17. Ne5 Ne7 18. Qg4 Nd5 19. Nf3 Nf6 20. Qh4 Nh5 21. Re5 a6 22. Rae1 Qd8 23. Qe4 Nf6 24. Qh4 Qc7 25. Rc5 Qb7 26. Qf4 Rac8 27. Ree5 Nd5 28. Qh4 Rxc5 29. dxc5 Qc7 30. Ng5 Nf6 31. Qd4 Rd8 32. Qe3 Rd1+ 33. Kh2 Rd3 34. Qf4 Rd5 35. Nf3 Nd7 36. g3 Nxe5 37. Nxe5 Qxe5 38. Qxe5 Rxe5 39. c6 Rc5 40. f4 Rxc6 41. Kg2 Rd6 42. Kf3 Rd2 43. Ke4 Rxb2 44. Kd4 Rxa2 45. h4 Rb2 46. Kc5 a5 47. Kb6 a4 48. Kc5 a3 49. Kb6 a2 50. Kc5 a1Q 51. Kd4 Qd1+ 52. Kc5 Qd5+ 53. Kb6 Ra2 54. g4 Ra8 55. h5 Qd6+ 56. Kb7 Rb8+ 57. Ka7 Qb6# 0-1

[Event "Florianopolis Autumn op U1800"]
[Site "Florianopolis"]
[Date "2022.05.14"]
[Round "4"]
[White "Nunes, Nicole"]
[Black "Da Costa, Michael David"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "1047"]
[BlackElo "1401"]
[PlyCount "98"]
[EventDate "2022.05.13"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Bf4 e6 5. h3 Nbd7 6. e3 Qa5+ 7. Nc3 Bb4 8. Qc2 Ne4 9. Rc1 Qxa2 10. Bd3 Bxc3+ 11. bxc3 Qxc2 12. Rxc2 Ndf6 13. cxd5 exd5 14. c4 Be6 15. Rb2 dxc4 16. Bxe4 Nxe4 17. Rxb7 0-0 18. 0-0 a5 19. Rfb1 a4 20. Bc7 a3 21. Bb6 a2 22. Ra1 c3 23. Ra7 Rxa7 24. Bxa7 Ra8 25. Ne1 Rxa7 26. Nd3 Rb7 27. Rxa2 Bxa2 28. f3 Rb1+ 29. Kh2 Nf6 30. e4 c2 31. e5 c1Q 32. Nxc1 Rxc1 33. exf6 gxf6 34. Kg3 Rd1 35. d5 Rxd5 36. Kf4 c5 37. Ke4 Rd8 38. Kf5 c4 39. Kxf6 c3 40. g4 c2 41. f4 c1Q 42. f5 Qh6+ 43. Ke5 Qd6+ 44. Ke4 Re8+ 45. Kf3 Bd5+ 46. Kf2 Qf4+ 47. Kg1 Re2 48. h4 Qg3+ 49. Kf1 Qg2# 0-1

[Event "Florianopolis Autumn op U1800"]
[Site "Florianopolis"]
[Date "2022.05.13"]
[Round "1"]
[White "Da Costa, Michael David"]
[Black "Mileski, Lucas de Souza"]
[Result "0-1"]
[ECO "E05"]
[WhiteElo "1401"]
[BlackElo "1765"]
[PlyCount "130"]
[EventDate "2022.05.13"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 0-0 6. 0-0 dxc4 7. a4 Nc6 8. e3 Rb8 9. Qc2 Nb4 10. Qxc4 b6 11. Bd2 Ba6 12. Qb3 Bxf1 13. Bxf1 c5 14. Bxb4 cxb4 15. Nbd2 h5 16. Ba6 Nd5 17. Ne5 Qc7 18. Ne4 Bf6 19. Nxf6+ Nxf6 20. Qxb4 Rbd8 21. Qd2 Qxe5 22. dxe5 Rxd2 23. exf6 Rfd8 24. fxg7 Rd1+ 25. Rxd1 Rxd1+ 26. Kg2 Kxg7 27. b3 Rd2 28. h4 Rb2 29. Bc4 Kf6 30. Kf1 Ke5 31. f3 Kd6 32. Kg1 Ke5 33. Kf1 a5 34. Kg1 Rd2 35. Kf1 Kf6 36. Kg1 Kf5 37. Kf1 Rb2 38. Kg1 Rd2 39. Kf1 f6 40. Kg1 Ke5 41. Kf1 f5 42. Kg1 Kf6 43. Kf1 e5 44. Kg1 e4 45. f4 Ke7 46. Kf1 Rb2 47. Kg1 Kd6 48. Bf7 Re2 49. Bxh5 Rxe3 50. Kf2 Rxb3 51. Bg6 Ke6 52. h5 Kf6 53. Be8 Rb2+ 54. Kg1 e3 55. Kf1 Rf2+ 56. Kg1 Rf3 57. Bb5 Rxg3+ 58. Kf1 Rf3+ 59. Ke2 Rxf4 60. Kxe3 Rh4 61. Be8 Ke5 62. Kf3 Kf6 63. Kg3 Kg5 64. Kf3 Rh3+ 65. Kg2 Rxh5 0-1

[Event "Rio Negrinho Froebel Cup"]
[Site "Rio Negrinho"]
[Date "2022.04.10"]
[Round "6"]
[White "Da Costa, Michael David"]
[Black "Bail, Ellen Larissa"]
[Result "0-1"]
[ECO "D37"]
[WhiteElo "1395"]
[BlackElo "1886"]
[PlyCount "76"]
[EventDate "2022.04.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Be7 4. Nc3 Nf6 5. Bf4 0-0 6. e3 b6 7. cxd5 exd5 8. Bd3 c5 9. Rc1 Bb7 10. 0-0 Nbd7 11. h3 Ne4 12. Bb1 Ndf6 13. Be5 Rc8 14. Nxe4 Nxe4 15. Nd2 f6 16. Bf4 Re8 17. Nxe4 dxe4 18. dxc5 Bxc5 19. Qxd8 Rexd8 20. Rfd1 Kf8 21. a3 a5 22. Ba2 Ke7 23. Kf1 g5 24. Bh2 h5 25. Ke1 h4 26. Rxd8 Rxd8 27. Rd1 Rxd1+ 28. Kxd1 Bd6 29. Bxd6+ Kxd6 30. Bc4 Bc8 31. Kd2 Ke5 32. Be2 f5 33. f3 Bb7 34. fxe4 Bxe4 35. Bf3 g4 36. hxg4 Bxf3 37. gxf3 h3 38. f4+ Ke4 0-1

[Event "Rio Negrinho Froebel Cup"]
[Site "Rio Negrinho"]
[Date "2022.04.09"]
[Round "5"]
[White "Bruske, Vinicius Eduardo"]
[Black "Da Costa, Michael David"]
[Result "0-1"]
[ECO "B13"]
[BlackElo "1395"]
[PlyCount "120"]
[EventDate "2022.04.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. d4 Nf6 5. Be3 Nc6 6. Nbd2 Bf5 7. Bb5 a6 8. Be2 e6 9. Nh4 Bg6 10. Ndf3 h6 11. Rc1 b5 12. a4 b4 13. c3 Qb6 14. c4 Be7 15. Ne5 Be4 16. cxd5 Bxd5 17. Nxc6 Bxc6 18. d5 Qa5 19. dxc6 0-0 20. 0-0 Rac8 21. b3 Nd5 22. Bd4 Rfd8 23. Nf3 Nf4 24. Qc2 Rd6 25. Be5 Rdxc6 26. Bc4 Nd5 27. Qb2 Nf6 28. Rfd1 Qb6 29. Bxf6 Bxf6 30. Qe2 a5 31. Rd7 Rd8 32. Rxd8+ Qxd8 33. Rd1 Qc7 34. Nd4 Rc5 35. Nb5 Qf4 36. Qe3 Qxe3 37. fxe3 Bg5 38. Rd3 Re5 39. Kf2 Kf8 40. Nd4 g6 41. Nf3 Rf5 42. g4 Rc5 43. Nxg5 hxg5 44. Kf3 Ke7 45. Ke4 Ke8 46. Kd4 Rc7 47. Ke5 Ke7 48. Rd2 Rc5+ 49. Ke4 f5+ 50. Kf3 Rc6 51. gxf5 gxf5 52. Rg2 Kf6 53. Rf2 Rd6 54. Ke2 g4 55. e4 Ke5 56. exf5 exf5 57. Ke3 Rd4 58. Bd3 f4+ 59. Ke2 Kf6 60. Rg2 Kg5 0-1

[Event "Rio Negrinho Froebel Cup"]
[Site "Rio Negrinho"]
[Date "2022.04.09"]
[Round "3"]
[White "Campagnolo, Fabiola"]
[Black "Da Costa, Michael David"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1696"]
[BlackElo "1395"]
[PlyCount "139"]
[EventDate "2022.04.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 Nf6 5. Bc4 Bf5 6. Nf3 e6 7. Ne5 Nbd7 8. Bf4 c6 9. Qe2 Bb4 10. 0-0 Bxc3 11. bxc3 0-0 12. Rab1 Qc8 13. Bd3 Bxd3 14. cxd3 c5 15. dxc5 Nxc5 16. Bg5 Nd5 17. Bd2 b6 18. c4 Ne7 19. d4 Nd7 20. Bb4 Re8 21. Rfc1 Nxe5 22. Qxe5 Nc6 23. Qe4 Nxb4 24. Rxb4 Rb8 25. c5 bxc5 26. Rxb8 Qxb8 27. dxc5 Rc8 28. c6 Rc7 29. Qc4 Qc8 30. g3 g6 31. Kg2 Qd8 32. Qc5 Qd5+ 33. Qxd5 exd5 34. Kf3 Kf8 35. Kf4 f6 36. Ke3 Ke7 37. Kd4 Kd6 38. Rc5 Rxc6 39. Rxd5+ Ke6 40. Ra5 a6 41. f4 f5 42. Rc5 Rd6+ 43. Kc4 Rb6 44. Rc8 Rb2 45. Rc6+ Kd7 46. Rxa6 Rxh2 47. Kd5 Kc7 48. Ke6 Kb7 49. Rd6 Rxa2 50. Rd7+ Kc6 51. Rxh7 Rg2 52. Rh3 Kc5 53. Kf6 Kd4 54. Kxg6 Ke4 55. Kg5 Rg1 56. Kf6 Rg2 57. Rh5 Rxg3 58. Rxf5 Rf3 59. Kg5 Rf1 60. Re5+ Kf3 61. f5 Rg1+ 62. Kf6 Kf4 63. Ra5 Re1 64. Ra4+ Kf3 65. Kf7 Rb1 66. f6 Rb7+ 67. Kg6 Rb6 68. Kg7 Rb1 69. f7 Rg1+ 70. Kf6 1-0

[Event "Rio Negrinho Froebel Cup"]
[Site "Rio Negrinho"]
[Date "2022.04.09"]
[Round "4"]
[White "Da Costa, Michael David"]
[Black "Maia, Renata Rodrigues Al"]
[Result "1-0"]
[ECO "A92"]
[WhiteElo "1395"]
[BlackElo "1135"]
[PlyCount "71"]
[EventDate "2022.04.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 e6 3. g3 Nf6 4. Bg5 d5 5. Bg2 Be7 6. 0-0 Nbd7 7. Nbd2 0-0 8. c4 c6 9. Qc2 Ne4 10. Bxe7 Qxe7 11. e3 Ndf6 12. c5 Bd7 13. Ne5 Nxd2 14. Qxd2 Ne4 15. Qc2 g5 16. f3 Nf6 17. b4 h5 18. Ng6 Qg7 19. Nxf8 Rxf8 20. h3 g4 21. fxg4 hxg4 22. h4 Ne4 23. Bxe4 dxe4 24. Qf2 Qh6 25. a4 a6 26. Rfe1 Kf7 27. Kg2 Ra8 28. Rh1 Kf6 29. Rh2 Kg6 30. h5+ Kf6 31. Rh4 Rh8 32. Rxg4 Qxh5 33. Rh4 Qe8 34. Rxh8 Qxh8 35. Rh1 Qg7 36. Qf4 1-0

[Event "Rio Negrinho Froebel Cup"]
[Site "Rio Negrinho"]
[Date "2022.04.08"]
[Round "2"]
[White "Da Costa, Michael David"]
[Black "Soares, Suyane"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "1395"]
[BlackElo "1119"]
[PlyCount "79"]
[EventDate "2022.04.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Bf4 Nf6 5. Nc3 a6 6. e3 Nc6 7. a3 Bf5 8. Bd3 Bg6 9. Nge2 e6 10. 0-0 Bd6 11. Rc1 Nh5 12. Bxd6 Qxd6 13. Na4 f5 14. g3 Nf6 15. Nf4 Bf7 16. Nc5 Rb8 17. Be2 0-0 18. f3 g5 19. Nfd3 h6 20. b4 Rfe8 21. Qd2 e5 22. dxe5 Nxe5 23. Nxe5 Qxe5 24. Kf2 Qe7 25. Bd3 Be6 26. Rfe1 g4 27. Qc2 gxf3 28. Kxf3 Ne4 29. Bxe4 fxe4+ 30. Kg2 Rbc8 31. Qd2 Qg7 32. Nxe6 Rxe6 33. Rxc8+ Kh7 34. Qc2 h5 35. Rc7 Re7 36. Rc1 Qf7 37. Rxe7 Qxe7 38. Qc7 Qxc7 39. Rxc7+ Kg6 40. Rxb7 1-0

[Event "Rio Negrinho Froebel Cup"]
[Site "Rio Negrinho"]
[Date "2022.04.08"]
[Round "1"]
[White "Dos Santos, Haroldo Cunha Jr"]
[Black "Da Costa, Michael David"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2101"]
[BlackElo "1395"]
[PlyCount "71"]
[EventDate "2022.04.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. c3 Qb6 6. Qb3 c4 7. Qc2 Bf5 8. Qc1 e6 9. Nh4 Bg6 10. Nxg6 hxg6 11. h3 Qd8 12. Nd2 Bd6 13. Bxd6 Qxd6 14. b3 b5 15. a4 Na5 16. axb5 Nxb3 17. Nxb3 cxb3 18. Qb2 0-0 19. Qxb3 Qb6 20. Ra6 Qc7 21. Bd3 Nd7 22. 0-0 Nb6 23. Rfa1 Rfc8 24. R1a3 Rcb8 25. Qb4 Nc8 26. c4 dxc4 27. Be4 Nb6 28. Bxa8 Rxa8 29. Qc5 Qb7 30. f3 f6 31. e4 Kf7 32. Qc6 Qxc6 33. bxc6 Nc8 34. c7 Ke7 35. Rc6 Nb6 36. Rxb6 1-0

[Event "Timbo op"]
[Site "Timbo"]
[Date "2021.06.13"]
[Round "5"]
[White "Da Costa, Michael David"]
[Black "Nones, Vinicius Gabriel"]
[Result "0-1"]
[ECO "D41"]
[WhiteElo "1471"]
[BlackElo "1104"]
[PlyCount "54"]
[EventDate "2021.06.11"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 e6 2. c4 d5 3. Nc3 Nf6 4. Nf3 c5 5. cxd5 Nxd5 6. Nxd5 exd5 7. e3 Nc6 8. Bb5 Qa5+ 9. Bd2 Qxb5 10. Bc3 Bf5 11. dxc5 Qxc5 12. Qb3 b6 13. 0-0 f6 14. Rac1 Qd6 15. Rfd1 Rd8 16. Qb5 Kf7 17. Rd2 Be6 18. Rcd1 Qc5 19. Qa4 Be7 20. Qf4 h6 21. h4 Bd6 22. Qa4 Bb8 23. h5 Qc4 24. Qc2 Qg4 25. Bxf6 gxf6 26. Qxc6 Rhg8 27. Qb7+ Rd7 0-1

[Event "Timbo op"]
[Site "Timbo"]
[Date "2021.06.13"]
[Round "6"]
[White "Darcanal, Emanuele1111"]
[Black "Da Costa, Michael David"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1030"]
[BlackElo "1471"]
[PlyCount "80"]
[EventDate "2021.06.11"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. Nf3 c5 4. e3 Nc6 5. c3 Bf5 6. Be2 e6 7. 0-0 h6 8. c4 Be7 9. b3 Nh5 10. Be5 Nf6 11. Bf4 0-0 12. Nc3 cxd4 13. Nxd4 Nxd4 14. Qxd4 a6 15. Bd3 Bxd3 16. Qxd3 dxc4 17. Qxd8 Rfxd8 18. bxc4 Rac8 19. Rfd1 Rxc4 20. Rxd8+ Bxd8 21. Ne2 Rc2 22. Nd4 Rc8 23. Nf3 Nd5 24. Rb1 Nxf4 25. exf4 Bf6 26. g3 b5 27. Rd1 Rc7 28. Kg2 a5 29. Rd6 Rc2 30. Rb6 b4 31. a4 bxa3 32. Ra6 Bc3 33. Ne5 a2 34. Nc4 a1Q 35. Nxa5 Bxa5 36. Rxa5 Qxa5 37. h4 Qd2 38. Kh3 f5 39. h5 Qxf2 40. Kh4 Qh2# 0-1

[Event "Timbo op"]
[Site "Timbo"]
[Date "2021.06.12"]
[Round "4"]
[White "Da Costa, Mariana Nara Santan"]
[Black "Da Costa, Michael David"]
[Result "1-0"]
[ECO "D91"]
[WhiteElo "1236"]
[BlackElo "1471"]
[PlyCount "66"]
[EventDate "2021.06.11"]
[EventType "swiss"]
[EventRounds "6"]
[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. Bg5 0-0 5. Nf3 c6 6. e3 d5 7. Be2 Nbd7 8. 0-0 Re8 9. Rc1 dxc4 10. Bxc4 Nb6 11. Bb3 Bf5 12. Ne5 Nbd5 13. Qf3 Be6 14. Nxd5 Bxd5 15. Bxd5 Qxd5 16. Qxd5 Nxd5 17. Nd3 Rac8 18. Rfe1 f6 19. Bh4 e5 20. dxe5 fxe5 21. a3 b6 22. Red1 Re6 23. b4 Kf7 24. b5 c5 25. Rc2 Ne7 26. Nb2 Rc7 27. Nc4 Nf5 28. Bd8 Rb7 29. g4 Ne7 30. Nd6+ Rxd6 31. Rxd6 Nc8 32. Rd1 Ke6 33. Bh4 Nd6 1-0

[Event "Timbo op"]
[Site "Timbo"]
[Date "2021.06.12"]
[Round "3"]
[White "Da Costa, Michael David"]
[Black "Eger, Laura Luisa"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "1471"]
[BlackElo "1757"]
[PlyCount "96"]
[EventDate "2021.06.11"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Bf4 Nf6 5. Nc3 Nc6 6. e3 Bf5 7. Bb5 e6 8. a3 Bd6 9. Nge2 Rc8 10. Rc1 0-0 11. 0-0 a6 12. Bxc6 Rxc6 13. Bxd6 Qxd6 14. f3 Bg6 15. Nf4 Rd8 16. Nxg6 hxg6 17. Ne2 Rdc8 18. Rxc6 Rxc6 19. Qd2 Nd7 20. Rc1 Nb6 21. Rxc6 Qxc6 22. b3 Qb5 23. Qc2 Qa5 24. Qc1 Qb5 25. Qc2 g5 26. Kf2 Qd7 27. Qc5 Qc6 28. Qxc6 bxc6 29. Nc1 a5 30. a4 Nd7 31. Nd3 Kf8 32. Nc5 Nxc5 33. dxc5 Ke7 34. Ke2 f5 35. Kd3 e5 36. Kc3 f4 37. Kd3 Ke6 38. exf4 gxf4 39. g3 fxg3 40. hxg3 g6 41. Ke3 Kf5 42. b4 axb4 43. a5 b3 44. Kd3 e4+ 45. fxe4+ dxe4+ 46. Kc3 e3 47. a6 e2 48. a7 e1Q+ 0-1

[Event "Timbo op"]
[Site "Timbo"]
[Date "2021.06.12"]
[Round "2"]
[White "Feller, Gabriela Luisa Vice"]
[Black "Da Costa, Michael David"]
[Result "1-0"]
[ECO "D91"]
[WhiteElo "1793"]
[BlackElo "1471"]
[PlyCount "41"]
[EventDate "2021.06.11"]
[EventType "swiss"]
[EventRounds "6"]
[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. Nf3 Bg7 4. Nc3 d5 5. Bg5 c6 6. e3 0-0 7. Be2 Nbd7 8. 0-0 b6 9. Rc1 Bb7 10. cxd5 Nxd5 11. Nxd5 cxd5 12. Qb3 Nf6 13. Rc2 Rc8 14. Rfc1 Rxc2 15. Qxc2 Qc8 16. Ne5 e6 17. Qxc8 Rxc8 18. Rxc8+ Bxc8 19. Nc6 Bd7 20. Nxa7 Ne4 21. Bd8 1-0

[Event "Timbo op"]
[Site "Timbo"]
[Date "2021.06.11"]
[Round "1"]
[White "Da Costa, Michael David"]
[Black "Gomes, Lorenzo Bevervanco"]
[Result "1-0"]
[ECO "D07"]
[WhiteElo "1471"]
[PlyCount "107"]
[EventDate "2021.06.11"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Nc6 5. Bf4 Bd6 6. Bg3 0-0 7. e3 Qe7 8. Bh4 Qd7 9. Bxf6 gxf6 10. cxd5 exd5 11. Nxd5 Qe6 12. Nc3 Re8 13. d5 Qe7 14. dxc6 bxc6 15. Be2 Bc5 16. 0-0 Qf8 17. Qc2 Qg7 18. Ne4 Rxe4 19. Qxe4 Bh3 20. g3 f5 21. Qxc6 Rb8 22. Qxc5 Qxb2 23. Rfe1 Qg7 24. Bf1 Bg4 25. Bg2 h5 26. Qxc7 Rf8 27. Qe5 Qh6 28. Nh4 Qg5 29. Be4 f6 30. Qd5+ Kg7 31. Nxf5+ Bxf5 32. Qxf5 Qh6 33. Qh7+ Qxh7 34. Bxh7 Kxh7 35. Red1 Kg6 36. Rd7 Rh8 37. Rxa7 h4 38. gxh4 Rxh4 39. Rd7 Rg4+ 40. Kf1 Rh4 41. a4 Rxh2 42. Ke2 f5 43. a5 Kg5 44. a6 f4 45. exf4+ Kxf4 46. Ra4+ Kf5 47. Rd5+ Ke6 48. Rb5 Rh6 49. Rb6+ Kf5 50. Rxh6 Kg5 51. Rb6 Kf5 52. Kf3 Kg5 53. Rc4 Kf5 54. Rc5# 1-0

[Event "Timbo op"]
[Site "Timbo"]
[Date "2021.02.21"]
[Round "5"]
[White "Silva, Guilherme Henrique"]
[Black "Da Costa, Michael David"]
[Result "1-0"]
[ECO "B19"]
[WhiteElo "1765"]
[BlackElo "1483"]
[PlyCount "51"]
[EventDate "2021.02.19"]
[EventType "swiss"]
[EventRounds "6"]
[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. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. h4 h6 8. Bd3 Bxd3 9. Qxd3 Ngf6 10. Bd2 e6 11. 0-0-0 c5 12. Rhe1 Be7 13. d5 Nxd5 14. Nf5 0-0 15. Nxe7+ Qxe7 16. Qxd5 exd5 17. Rxe7 Rad8 18. Ne5 Nxe5 19. Rxe5 Rd7 20. Rde1 b6 21. Re7 Rfd8 22. a4 a6 23. Re8+ Rxe8 24. Rxe8+ Kh7 25. Rb8 Rd6 26. a5 1-0

[Event "Timbo op"]
[Site "Timbo"]
[Date "2021.02.20"]
[Round "4"]
[White "Da Costa, Michael David"]
[Black "Giovanella, Ezequiel Luis Lopes"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "1483"]
[PlyCount "83"]
[EventDate "2021.02.19"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nc3 e6 4. Nf3 g6 5. Bg5 Nbd7 6. e3 c6 7. Be2 Bd6 8. Qc2 Qc7 9. c5 Be7 10. Bf4 e5 11. Nxe5 Qa5 12. a3 b5 13. Nxc6 Qa6 14. Nxe7 Kxe7 15. Bxb5 Qb7 16. b4 Nb8 17. Be2 a5 18. b5 Bf5 19. Bd3 Bxd3 20. Qxd3 Re8 21. c6 Qc8 22. Na4 Qd8 23. c7 Qd7 24. c8Q Rxc8 25. Bxb8 Raxb8 26. Nc5 Qxb5 27. Qxb5 Rxb5 28. 0-0 Rb6 29. Rfb1 Rbc6 30. f3 g5 31. Rb5 g4 32. Rxa5 gxf3 33. gxf3 Kf8 34. Rb5 Kg7 35. a4 Ne8 36. Rb2 f5 37. a5 Kg6 38. a6 Nc7 39. a7 h5 40. Ra6 Rxa6 41. Nxa6 Nxa6 42. Rb6+ 1-0

[Event "Timbo op"]
[Site "Timbo"]
[Date "2021.02.20"]
[Round "3"]
[White "Feller, Gabriela Luisa Vice"]
[Black "Da Costa, Michael David"]
[Result "1-0"]
[ECO "D60"]
[WhiteElo "1791"]
[BlackElo "1483"]
[PlyCount "71"]
[EventDate "2021.02.19"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 Be7 6. e3 Nbd7 7. Bd3 0-0 8. 0-0 dxc4 9. Bxc4 b5 10. Bd3 b4 11. Bxf6 Nxf6 12. Ne4 Qb6 13. Qc2 h6 14. Ne5 Re8 15. Nxc6 Bb7 16. Nxe7+ Rxe7 17. Nxf6+ gxf6 18. Be4 Rc7 19. Qb1 Kh8 20. Bxb7 Qxb7 21. Rc1 Rac8 22. Rxc7 Qxc7 23. Qd1 f5 24. g3 Kg7 25. a3 a5 26. axb4 axb4 27. Qb3 Qb7 28. Rd1 Kf8 29. d5 e5 30. d6 Rd8 31. Qd3 Qd7 32. Qd5 f6 33. Qc4 Rb8 34. Qc7 Rb7 35. Qxb7 Qxb7 36. d7 1-0

[Event "Timbo op"]
[Site "Timbo"]
[Date "2021.02.19"]
[Round "1"]
[White "Silva, Kaua Marques"]
[Black "Da Costa, Michael David"]
[Result "1-0"]
[ECO "A36"]
[WhiteElo "2132"]
[BlackElo "1483"]
[PlyCount "109"]
[EventDate "2021.02.19"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 c5 3. e4 Nc6 4. g3 Nf6 5. Bg2 Be7 6. Nge2 d6 7. 0-0 e5 8. d3 0-0 9. f4 exf4 10. gxf4 Bg4 11. h3 Bxe2 12. Nxe2 Ne8 13. Ng3 Nd4 14. Be3 Bf6 15. Rb1 Nc6 16. Kh2 g6 17. a3 a5 18. e5 Bg7 19. exd6 Qxd6 20. Ne4 Qd7 21. Bxc5 Qc7 22. Bxf8 Bxf8 23. d4 Rd8 24. d5 Bg7 25. Qd3 b6 26. b4 Nd4 27. bxa5 bxa5 28. Nc3 Nd6 29. Nb5 N4xb5 30. cxb5 Nf5 31. b6 Qd6 32. b7 Rb8 33. Qe4 Qxa3 34. Rfc1 Nd6 35. Qe1 Rxb7 36. Rxb7 Nxb7 37. Rc8+ Bf8 38. Rb8 Qd6 39. Rxb7 Qxf4+ 40. Qg3 Qf6 41. Qf3 Qe5+ 42. Kh1 f6 43. d6 Bxd6 44. Qd5+ Qxd5 45. Bxd5+ Kh8 46. Kg2 a4 47. Kf3 Bf8 48. h4 h6 49. Ra7 a3 50. Bf7 g5 51. Kg4 Bc5 52. Rc7 Bd6 53. Rd7 Be5 54. h5 Kg7 55. Ba2+ 1-0

[Event "Florianopolis op 7th"]
[Site "Florianopolis"]
[Date "2021.01.24"]
[Round "10"]
[White "Blanco, Gustavo Jose Bachur"]
[Black "Da Costa, Michael David"]
[Result "0-1"]
[ECO "B12"]
[BlackElo "1522"]
[PlyCount "34"]
[EventDate "2021.01.18"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. f3 dxe4 4. fxe4 Nf6 5. e5 Nd5 6. c4 Nc7 7. Nf3 Bg4 8. Be2 e6 9. 0-0 Be7 10. Be3 Nd7 11. Qd2 c5 12. d5 Bxf3 13. Rxf3 Nxe5 14. Rf2 exd5 15. cxd5 Qxd5 16. Bb5+ Nc6 17. Bc4 Qxc4 0-1

[Event "Florianopolis op 7th"]
[Site "Florianopolis"]
[Date "2021.01.23"]
[Round "9"]
[White "Da Costa, Michael David"]
[Black "Pavao, Alice Lara Biasi"]
[Result "1-0"]
[ECO "E61"]
[WhiteElo "1522"]
[BlackElo "1002"]
[PlyCount "82"]
[EventDate "2021.01.18"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 0-0 5. Bg5 d6 6. e3 Nbd7 7. Be2 h6 8. Bh4 g5 9. Bg3 Nh5 10. Qc2 Nxg3 11. hxg3 e5 12. Rd1 exd4 13. Nxd4 Nb8 14. b4 Nc6 15. Nxc6 bxc6 16. Bf3 Bb7 17. b5 Qd7 18. a4 Rab8 19. 0-0 a6 20. bxc6 Bxc6 21. Bxc6 Qxc6 22. Nd5 Rfe8 23. Rb1 Kh8 24. g4 Qd7 25. a5 Qc8 26. Qe2 Bd4 27. Qf3 Bg7 28. Qxf7 c6 29. Rxb8 Qxb8 30. Nb6 Qd8 31. Qb7 Re4 32. Qxa6 Rxg4 33. Qb7 c5 34. a6 Kh7 35. a7 h5 36. a8Q Qxa8 37. Nxa8 Rxc4 38. Qd5 Ra4 39. Rd1 Be5 40. Nc7 Bg7 41. Qxd6 c4 1-0

[Event "Florianopolis op 7th"]
[Site "Florianopolis"]
[Date "2021.01.23"]
[Round "8"]
[White "Do Carmo, Gabriel Carckeno"]
[Black "Da Costa, Michael David"]
[Result "0-1"]
[ECO "D02"]
[BlackElo "1522"]
[PlyCount "74"]
[EventDate "2021.01.18"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 e6 4. Nbd2 c5 5. c3 Nc6 6. e3 a6 7. Bd3 c4 8. Bc2 b5 9. a3 Bb7 10. Qe2 Be7 11. Ne5 Nxe5 12. dxe5 Nd7 13. Qg4 g5 14. Bg3 h5 15. Qf3 h4 16. Bf4 gxf4 17. Qxf4 Bg5 18. Qd4 Qc7 19. Nf3 Be7 20. 0-0-0 a5 21. e4 Bc5 22. Qd2 Nxe5 23. Nxe5 Qxe5 24. f4 Qc7 25. exd5 Bxd5 26. f5 0-0-0 27. fxe6 Bxe6 28. Qg5 Rxd1+ 29. Rxd1 b4 30. axb4 axb4 31. cxb4 Bxb4 32. Be4 c3 33. Qb5 Qf4+ 34. Kb1 Qxe4+ 35. Rd3 Qe1+ 36. Kc2 Qe2+ 37. Kb1 Qxb2# 0-1

[Event "Florianopolis op 7th"]
[Site "Florianopolis"]
[Date "2021.01.22"]
[Round "7"]
[White "Da Costa, Michael David"]
[Black "Kannenberg, Brayan Kelvin Greth"]
[Result "0-1"]
[ECO "D37"]
[WhiteElo "1522"]
[BlackElo "1030"]
[PlyCount "65"]
[EventDate "2021.01.18"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4 5. Qc2 c5 6. e3 0-0 7. dxc5 Bxc5 8. cxd5 exd5 9. Be2 Nc6 10. a3 Bg4 11. b4 Be7 12. Bb2 Bxf3 13. Bxf3 d4 14. Bxc6 d3 15. Qd2 bxc6 16. Rd1 Ng4 17. Qxd3 Bh4 18. g3 Qf6 19. Qe2 Qg5 20. Rd4 f5 21. h3 Bxg3 22. hxg4 Be5 23. Rd1 f4 24. f3 Rae8 25. Ne4 Qg6 26. Bxe5 Rxe5 27. exf4 Rxf4 28. Qc4+ Kf8 29. Rd8+ Ke7 30. Rd3 Rfxe4+ 31. fxe4 Rxe4+ 32. Kd2 Rxc4 33. Re1+ 0-1

[Event "Florianopolis op 7th"]
[Site "Florianopolis"]
[Date "2021.01.21"]
[Round "5"]
[White "Da Costa, Michael David"]
[Black "De Souza Neto, Antonio Martins"]
[Result "0-1"]
[ECO "B14"]
[WhiteElo "1522"]
[BlackElo "1858"]
[PlyCount "56"]
[EventDate "2021.01.18"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. e3 cxd4 5. exd4 d5 6. Nf3 Be7 7. Be2 0-0 8. 0-0 b6 9. Be3 Bb7 10. Rc1 dxc4 11. Bxc4 Nd5 12. Nxd5 Bxd5 13. Bxd5 Qxd5 14. a3 Nc6 15. Qe2 b5 16. Rc2 Na5 17. Rd1 Rfc8 18. Bf4 Qf5 19. Rxc8+ Rxc8 20. Be3 Rc2 21. Qe1 Nc4 22. b4 Nxa3 23. Ra1 Qd3 24. Ne5 Qc3 25. Qd1 Bxb4 26. Nd3 a5 27. Nxb4 axb4 28. Bc1 Qxa1 0-1

[Event "Florianopolis op 7th"]
[Site "Florianopolis"]
[Date "2021.01.21"]
[Round "6"]
[White "Esteche, Caina Rinaldi"]
[Black "Da Costa, Michael David"]
[Result "1-0"]
[ECO "D36"]
[BlackElo "1522"]
[PlyCount "75"]
[EventDate "2021.01.18"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. d4 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 0-0 7. Qc2 c6 8. Bd3 h6 9. Bh4 Nbd7 10. Nf3 Re8 11. 0-0 Nf8 12. Rab1 a5 13. a3 Bd7 14. b4 axb4 15. axb4 Ne6 16. Ne5 Nc7 17. b5 cxb5 18. Nxb5 Bxb5 19. Bxb5 Nxb5 20. Rxb5 Ne4 21. Bg3 Nxg3 22. hxg3 Bf6 23. Nd3 Re7 24. Qb3 Rb8 25. Rxd5 Qe8 26. Rb5 Qc6 27. Rb6 Qc8 28. Rc1 Qf5 29. Nc5 Rc7 30. Rb1 Qc8 31. Kh2 Qf5 32. Na6 bxa6 33. Rxb8+ Kh7 34. Kg1 Rc2 35. f3 Bg5 36. e4 Qd7 37. Qxc2 Qxd4+ 38. Kf1 1-0

[Event "Florianopolis op 7th"]
[Site "Florianopolis"]
[Date "2021.01.20"]
[Round "4"]
[White "Nones, Vinicius Gabriel"]
[Black "Da Costa, Michael David"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "1048"]
[BlackElo "1522"]
[PlyCount "104"]
[EventDate "2021.01.18"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. d4 d5 2. e3 Nf6 3. c4 c6 4. h3 e6 5. Nf3 Nbd7 6. Nc3 Be7 7. Bd3 0-0 8. 0-0 dxc4 9. Bxc4 b5 10. Bd3 Bb7 11. a3 a5 12. Bd2 b4 13. Ne2 c5 14. Ng3 Bd6 15. Re1 Bxg3 16. fxg3 Ne4 17. Qc2 Ndf6 18. Bxe4 Nxe4 19. Rac1 Rc8 20. Qd3 Qd5 21. Qe2 Nxg3 22. Qf2 Ne4 23. Qe2 bxa3 24. bxa3 c4 25. Bc3 Bc6 26. Qc2 Rb8 27. Rb1 Nxc3 28. Qxc3 Ba4 29. Nd2 Bb3 30. Rb2 a4 31. Rc1 Rbc8 32. Rf1 f5 33. Nf3 f4 34. Re2 Qd6 35. Ra1 h6 36. e4 Rcd8 37. Rd2 Qe7 38. Ne5 Qb7 39. Nxc4 Qxe4 40. Nb2 Rc8 41. Qf3 Qxf3 42. gxf3 Rfd8 43. Re1 Rc7 44. Re4 g5 45. Kf2 Rdc8 46. Ree2 Kf7 47. Nd3 Kf6 48. Nc5 Rc6 49. Nd7+ Ke7 50. Nc5 Rd8 51. Ke1 Ra8 52. Rd3 Bc4 0-1

[Event "Florianopolis op 7th"]
[Site "Florianopolis"]
[Date "2021.01.19"]
[Round "3"]
[White "Da Costa, Michael David"]
[Black "Cavalhero, Alexandre"]
[Result "0-1"]
[ECO "D13"]
[WhiteElo "1522"]
[PlyCount "77"]
[EventDate "2021.01.18"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Bf4 Nf6 5. Nc3 Nc6 6. e3 a6 7. Nf3 Bg4 8. h3 Bh5 9. Be2 e6 10. a3 Bd6 11. Bxd6 Qxd6 12. 0-0 0-0 13. b4 Rfc8 14. Na4 Qd8 15. Nc5 b5 16. Ne1 Bg6 17. Bd3 Qd6 18. Bxg6 hxg6 19. Ned3 Ra7 20. Qb3 g5 21. f3 Nh5 22. f4 Ng3 23. Rf2 gxf4 24. Nxf4 Ne7 25. Qd1 Nef5 26. Qf3 Rd8 27. Ne2 Nxe2+ 28. Qxe2 Qg3 29. Rf3 Qg5 30. Qf2 g6 31. Kf1 Kg7 32. Ke2 Rh8 33. Rc1 Nxd4+ 34. Kd2 Nxf3+ 35. Qxf3 d4 36. Re1 Rd8 37. Nd3 Rad7 38. Re2 dxe3+ 39. Rxe3 0-1

[Event "Florianopolis op 7th"]
[Site "Florianopolis"]
[Date "2021.01.19"]
[Round "2"]
[White "De Freitas, Isabella Ribeiro Co"]
[Black "Da Costa, Michael David"]
[Result "1-0"]
[ECO "A17"]
[WhiteElo "1893"]
[BlackElo "1522"]
[PlyCount "85"]
[EventDate "2021.01.18"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. b3 c5 5. cxd5 exd5 6. d4 Nc6 7. e3 Bg4 8. Be2 cxd4 9. Nxd4 Bxe2 10. Ncxe2 Bb4+ 11. Bd2 Bxd2+ 12. Qxd2 0-0 13. 0-0 Rc8 14. Rfd1 Ne4 15. Qe1 Qf6 16. Nf4 Rfd8 17. f3 Nc5 18. Nb5 d4 19. b4 dxe3 20. Nd5 Qe5 21. bxc5 Rxd5 22. Rxd5 Qxd5 23. Qxe3 h6 24. Nd6 Rc7 25. Qc3 Qd4+ 26. Qxd4 Nxd4 27. Rb1 Ne6 28. Rxb7 Rxb7 29. Nxb7 Kf8 30. Kf2 Ke7 31. Ke3 Kd7 32. Nd6 f6 33. Nf5 Kc6 34. Nd4+ Nxd4 35. Kxd4 h5 36. a4 a5 37. f4 h4 38. h3 g6 39. Kc4 g5 40. fxg5 fxg5 41. Kd4 Kc7 42. Ke5 Kd7 43. c6+ 1-0

[Event "Florianopolis op 7th"]
[Site "Florianopolis"]
[Date "2021.01.18"]
[Round "1"]
[White "Da Costa, Michael David"]
[Black "Da Silva, Debora Oliveira Lop"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "1522"]
[PlyCount "85"]
[EventDate "2021.01.18"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Nbd7 5. Bf4 c6 6. e3 Qa5 7. a3 Ne4 8. Qb3 Ndf6 9. Nd2 Nxd2 10. Kxd2 Ne4+ 11. Ke1 b6 12. Bd3 Ba6 13. Rc1 Bd6 14. Bxd6 Nxd6 15. Qa4 Qxa4 16. Nxa4 Bxc4 17. Bxc4 Nxc4 18. Rc2 0-0 19. Ke2 Rfc8 20. Rhc1 b5 21. Nc5 a5 22. Ra1 b4 23. axb4 axb4 24. Rxa8 Rxa8 25. b3 Nd6 26. Nd3 Rc8 27. Nxb4 Kf8 28. Rxc6 Rxc6 29. Nxc6 Ke8 30. Kd3 Kd7 31. Ne5+ Ke7 32. f3 f6 33. Ng4 h5 34. Nf2 Kd7 35. e4 Kc6 36. g4 h4 37. f4 dxe4+ 38. Nxe4 f5 39. Nxd6 Kxd6 40. gxf5 exf5 41. Kc4 Kc6 42. d5+ Kb6 43. Kd4 1-0

[Event "Santa Catarina-ch 64th "]
[Site "Lages"]
[Date "2020.02.16"]
[Round "5"]
[White "Da Costa, Michael David"]
[Black "Espindola, Carlos Marcelo"]
[Result "1/2-1/2"]
[ECO "D08"]
[WhiteElo "1588"]
[BlackElo "1438"]
[PlyCount "39"]
[EventDate "2020.02.14"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. a3 Bg4 6. Nbd2 Nge7 7. h3 Bxf3 8. Nxf3 Ng6 9. b4 Ncxe5 10. Bb2 Nxf3+ 11. exf3 c5 12. b5 Be7 13. Bd3 Qa5+ 14. Qd2 Qxd2+ 15. Kxd2 Ne5 16. f4 Nxd3 17. Kxd3 0-0 18. Rae1 Bf6 19. Re2 a6 20. a4 1/2-1/2

[Event "Santa Catarina-ch 64th "]
[Site "Lages"]
[Date "2020.02.16"]
[Round "6"]
[White "Da Costa, Michael David"]
[Black "Nunes, Lucas Alexandre"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "1588"]
[BlackElo "1370"]
[PlyCount "47"]
[EventDate "2020.02.14"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bf4 0-0 6. e3 c5 7. dxc5 Bxc5 8. Be2 h6 9. 0-0 dxc4 10. Qxd8 Rxd8 11. Bxc4 Nc6 12. Nb5 a6 13. Nc3 b5 14. Be2 Bb7 15. a3 Nd5 16. Nxd5 Rxd5 17. Rfd1 Ne7 18. Rxd5 Nxd5 19. Be5 f6 20. Rc1 Rc8 21. Bd4 Bxd4 22. Rxc8+ Bxc8 23. Nxd4 e5 24. Nf3 1/2-1/2

[Event "Santa Catarina-ch 64th "]
[Site "Lages"]
[Date "2020.02.15"]
[Round "4"]
[White "Centeno, Daniel de Medeiros"]
[Black "Da Costa, Michael David"]
[Result "1/2-1/2"]
[ECO "D46"]
[WhiteElo "1287"]
[BlackElo "1588"]
[PlyCount "55"]
[EventDate "2020.02.14"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c6 4. e3 Nf6 5. Nc3 Be7 6. Be2 Nbd7 7. 0-0 0-0 8. Qc2 dxc4 9. Bxc4 b5 10. Bd3 Bb7 11. Ne4 Nxe4 12. Bxe4 Nf6 13. Bd3 Rc8 14. Qe2 a6 15. Bd2 c5 16. dxc5 Bxc5 17. b4 Bb6 18. Rac1 Qe7 19. Rxc8 Rxc8 20. a3 Qd6 21. Rc1 Rd8 22. Bb1 Qe7 23. Ne5 Rc8 24. Rxc8+ Bxc8 25. Qd3 Bc7 26. Bc3 Qd6 27. Nf3 Qxd3 28. Bxd3 1/2-1/2

[Event "Santa Catarina-ch 64th "]
[Site "Lages"]
[Date "2020.02.15"]
[Round "3"]
[White "Hornburg, Gustavo Arthur"]
[Black "Da Costa, Michael David"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "1415"]
[BlackElo "1588"]
[PlyCount "125"]
[EventDate "2020.02.14"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. c4 e6 2. d4 d5 3. Nc3 c6 4. Bf4 Nf6 5. e3 Bb4 6. Qb3 Qa5 7. a3 Ne4 8. Rc1 Bxc3+ 9. bxc3 0-0 10. Nf3 Nd7 11. Be2 Ndf6 12. h3 dxc4 13. Bxc4 b5 14. Bd3 Bb7 15. 0-0 h6 16. Rfe1 c5 17. Qxb5 Qxb5 18. Bxb5 Nd5 19. Bd3 Nxf4 20. exf4 Nf6 21. Rb1 Bxf3 22. gxf3 cxd4 23. cxd4 Rab8 24. Re5 Rxb1+ 25. Bxb1 Rc8 26. Kg2 g6 27. Ba2 Nh5 28. h4 Nxf4+ 29. Kg3 Nh5+ 30. Kh3 Rc2 31. Bb1 Rxf2 32. Be4 Rd2 33. Ra5 Rxd4 34. Rxa7 Nf4+ 35. Kg4 Nd5 36. Kg3 Rc4 37. a4 Rc7 38. Ra8+ Kg7 39. a5 Kf6 40. Ra6 Ke7 41. Ra8 Kd7 42. h5 gxh5 43. Rh8 Ra7 44. Rxh6 Rxa5 45. Rxh5 Ke7 46. Rg5 f5 47. Bc2 Kf6 48. Rh5 Ne7 49. Rh6+ Ng6 50. Bb3 Rb5 51. Ba4 Rb6 52. Be8 f4+ 53. Kg4 Rb7 54. Rxg6+ Ke5 55. Rg5+ Kf6 56. Bc6 Rg7 57. Rxg7 Kxg7 58. Kxf4 Kf6 59. Bb7 Kg6 60. Ke5 Kf7 61. Ba6 Ke7 62. Bc4 Kf8 63. Kxe6 1-0

[Event "Santa Catarina-ch 64th "]
[Site "Lages"]
[Date "2020.02.14"]
[Round "2"]
[White "Da Costa, Michael David"]
[Black "Mafra, Kaiser Luiz"]
[Result "0-1"]
[ECO "D31"]
[WhiteElo "1588"]
[BlackElo "2116"]
[PlyCount "31"]
[EventDate "2020.02.14"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. a4 Bb4 6. Bd2 a5 7. e3 b5 8. g3 Bb7 9. Bg2 Nd7 10. 0-0 Ngf6 11. b3 Bxc3 12. Bxc3 b4 13. Bb2 c3 14. Bc1 c5 15. Qe2 Ba6 16. Qd1 0-1

[Event "BRA-ch Amateur U1600"]
[Site "Sao Paulo"]
[Date "2019.06.23"]
[Round "7"]
[White "Viertler, Sabrina Camargo"]
[Black "Da Costa, Michael David"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "1461"]
[PlyCount "85"]
[EventDate "2019.06.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d3 Nf6 6. Nc3 c5 7. d4 d5 8. dxc5 Bxc5 9. Bg5 Qb6 10. Qe2+ Qe6 11. Bxf6 Qxe2+ 12. Bxe2 gxf6 13. Nxd5 Bd6 14. Nxf6+ Ke7 15. Ne4 Bf4 16. Nc3 Be6 17. Nd4 Be5 18. Nxe6 fxe6 19. Bf3 Nd7 20. Rd1 Nc5 21. Ne4 Nxe4 22. Bxe4 Bxb2 23. Rb1 Bc3+ 24. Ke2 Rad8 25. Rxb7+ Kf6 26. Rxh7 Rxh7 27. Bxh7 Rd2+ 28. Ke3 e5 29. Bd3 a5 30. a4 Kg5 31. h4+ Kh5 32. g4+ Kh6 33. h5 e4 34. Bxe4 Rd4 35. f4 Rxa4 36. g5+ Kg7 37. h6+ Kh8 38. Rd1 Rxe4+ 39. Kxe4 a4 40. g6 Ba5 41. g7+ Kg8 42. Rg1 Bc3 43. h7+ 1-0

[Event "BRA-ch Amateur U1600"]
[Site "Sao Paulo"]
[Date "2019.06.22"]
[Round "6"]
[White "Da Costa, Michael David"]
[Black "Kamakawa, Cesar"]
[Result "1-0"]
[ECO "D02"]
[BlackElo "1573"]
[PlyCount "84"]
[EventDate "2019.06.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Bg4 3. Ne5 Bh5 4. c3 c6 5. Qc2 Nd7 6. Bf4 Nxe5 7. Bxe5 e6 8. e3 Nf6 9. h3 Ne4 10. Nd2 Bg6 11. Nxe4 Bxe4 12. Qd2 f6 13. Bh2 c5 14. f3 Bg6 15. Bb5+ Kf7 16. 0-0 c4 17. Ba4 Bd6 18. Bc2 Qc7 19. Bxd6 Qxd6 20. Bxg6+ hxg6 21. e4 Qg3 22. Qf2 Qg5 23. f4 Qh6 24. exd5 exd5 25. Qf3 Rad8 26. Rae1 Qh5 27. Qxh5 gxh5 28. Re3 Rhe8 29. Rfe1 Rxe3 30. Rxe3 Re8 31. Kf2 f5 32. Re5 Rxe5 33. fxe5 g5 34. h4 Kg6 35. Kf3 b5 36. g3 a5 37. a3 f4 38. hxg5 Kxg5 39. gxf4+ Kf5 40. Kg3 h4+ 41. Kxh4 Kxf4 42. e6 Ke3 1-0

[Event "BRA-ch Amateur U1600"]
[Site "Sao Paulo"]
[Date "2019.06.22"]
[Round "5"]
[White "Gomes, Carlos"]
[Black "Da Costa, Michael David"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "1561"]
[PlyCount "125"]
[EventDate "2019.06.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2 Qe7 6. d3 Nf6 7. Bg5 Qxe2+ 8. Bxe2 Be7 9. Nc3 c6 10. 0-0 0-0 11. h3 Bf5 12. g4 Be6 13. Nd4 Nbd7 14. f4 Nb6 15. Nxe6 fxe6 16. f5 e5 17. Ne4 d5 18. Ng3 Rae8 19. Bf3 Nbd7 20. Rfe1 Bd8 21. Bd2 Bc7 22. Kg2 e4 23. dxe4 Bxg3 24. Kxg3 Nxe4+ 25. Bxe4 Rxe4 26. Rxe4 dxe4 27. Re1 Re8 28. g5 Kf7 29. Kf4 a6 30. Rxe4 Rxe4+ 31. Kxe4 g6 32. b4 b5 33. Be3 Ke8 34. Bd4 Kf7 35. h4 Ke8 36. Kf4 Kf7 37. Kg4 Nf8 38. Bc5 Nd7 39. Bd4 Nf8 40. h5 Nd7 41. hxg6+ hxg6 42. fxg6+ Kxg6 43. Kf4 Kf7 44. Kf5 Nf8 45. Ke5 Ne6 46. Be3 Ke7 47. Bc5+ Nxc5 48. bxc5 b4 49. g6 a5 50. g7 Kf7 51. Kd6 Kxg7 52. Kxc6 Kf6 53. Kb5 Ke5 54. Kxa5 Kd5 55. Kxb4 Kc6 56. Kc4 Kc7 57. Kb5 Kb7 58. c6+ Kc7 59. Kc5 Kc8 60. Kb6 Kb8 61. c7+ Kc8 62. a4 Kd7 63. Kb7 1-0

[Event "BRA-ch Amateur U1600"]
[Site "Sao Paulo"]
[Date "2019.06.21"]
[Round "4"]
[White "Da Costa, Michael David"]
[Black "Paiva, Sergio Henrique Mei"]
[Result "1/2-1/2"]
[ECO "E90"]
[BlackElo "1510"]
[PlyCount "134"]
[EventDate "2019.06.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 Nbd7 7. 0-0 c6 8. Rb1 e5 9. d5 c5 10. Bg5 Re8 11. a3 a6 12. b4 b6 13. Qc2 Qc7 14. h3 Bb7 15. Be3 Reb8 16. Qd2 Bc8 17. Bh6 Bb7 18. Qg5 Bc8 19. Nd2 Bb7 20. h4 Rf8 21. h5 Rae8 22. f4 Qd8 23. Bxg7 Kxg7 24. h6+ Kh8 25. g4 exf4 26. Rxf4 Re5 27. Rf5 Rxf5 28. exf5 Ng8 29. Qxd8 Rxd8 30. g5 Ne7 31. fxg6 fxg6 32. Nde4 Nc8 33. bxc5 dxc5 34. Bg4 Ne5 35. Be6 b5 36. cxb5 axb5 37. Rxb5 Bxd5 38. Bxd5 Rxd5 39. Rxc5 Rxc5 40. Nxc5 Kg8 41. N3e4 Na7 42. a4 Nac6 43. Kf2 Nd4 44. Ke3 Ndc6 45. Nb7 Nd7 46. a5 Kf7 47. Nec5 Nxc5 48. Nxc5 Nxa5 49. Ke4 Nc6 50. Kd5 Ne7+ 51. Kd6 Nf5+ 52. Ke5 Ne3 53. Ne4 Kg8 54. Ke6 Nf5 55. Nf6+ Kh8 56. Ne8 Nd4+ 57. Kd7 Nf3 58. Nd6 Nxg5 59. Ke7 Kg8 60. Kf6 Nf3 61. Ne4 Nd4 62. Nd6 Kf8 63. Ne4 Nf5 64. Ng5 Kg8 65. Nf7 Ng3 66. Ng5 Nf5 67. Nf7 Kf8 1/2-1/2

[Event "BRA-ch Amateur U1600"]
[Site "Sao Paulo"]
[Date "2019.06.21"]
[Round "3"]
[White "Felippe E Silva, Glenda"]
[Black "Da Costa, Michael David"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1223"]
[PlyCount "90"]
[EventDate "2019.06.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bf4 d5 4. e3 Bd6 5. Bxd6 Qxd6 6. Bd3 Nbd7 7. Nbd2 0-0 8. 0-0 Re8 9. c3 e5 10. dxe5 Nxe5 11. Nxe5 Rxe5 12. Nf3 Re7 13. Qe2 Bg4 14. h3 Bh5 15. Rfd1 c6 16. Rd2 Qc7 17. Qd1 Ne4 18. Rc2 Rd8 19. Be2 h6 20. Nd4 Bg6 21. f3 Ng3 22. Bd3 Rxe3 23. Bxg6 fxg6 24. Ne2 Rde8 25. Nxg3 Qxg3 26. Rf2 Qe5 27. Qf1 Qd6 28. Rd2 R8e6 29. Rad1 Qe7 30. Kh2 Re2 31. a3 R6e3 32. Rxe2 Rxe2 33. b4 Qe3 34. Rc1 Qd2 35. a4 b6 36. Re1 Rf2 37. Qg1 Rxf3 38. Re7 Rf7 39. Re6 Qxc3 40. Rxg6 Qe5+ 41. g3 Qe2+ 42. Kh1 Rf1 43. Qxf1 Qxf1+ 44. Kh2 Qe2+ 45. Kg1 Qd1+ 0-1

[Event "BRA-ch Amateur U1600"]
[Site "Sao Paulo"]
[Date "2019.06.20"]
[Round "1"]
[White "Consoli, Anderson Luiz"]
[Black "Da Costa, Michael David"]
[Result "1-0"]
[ECO "C24"]
[WhiteElo "1484"]
[PlyCount "65"]
[EventDate "2019.06.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 d6 4. c3 Nc6 5. Nd2 Na5 6. Bb5+ Nc6 7. h3 Bd7 8. Ba4 Be7 9. Ngf3 0-0 10. Nf1 Qc8 11. Ng3 Re8 12. 0-0 h6 13. Nh2 Bf8 14. f4 exf4 15. Bxf4 Qd8 16. Nh5 Nxh5 17. Qxh5 g6 18. Qf3 Qe7 19. Ng4 Ne5 20. Bxe5 Bxg4 21. Qxg4 Qxe5 22. Bxe8 Rxe8 23. Qd7 Re7 24. Qa4 a6 25. Qb3 c5 26. Rf3 b5 27. Raf1 c4 28. dxc4 Kg7 29. cxb5 Qc5+ 30. Kh1 f5 31. exf5 Rf7 32. fxg6 Rxf3 33. Rxf3 1-0

[Event "BRA-ch Amateur U1600"]
[Site "Sao Paulo"]
[Date "2019.06.20"]
[Round "2"]
[White "Da Costa, Michael David"]
[Black "Garcia, Erich Douglas Ribei"]
[Result "1-0"]
[ECO "D40"]
[BlackElo "1425"]
[PlyCount "85"]
[EventDate "2019.06.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c5 3. e3 Nc6 4. c4 e6 5. Nc3 Nf6 6. Be2 Be7 7. 0-0 0-0 8. Re1 Re8 9. a3 Bf8 10. dxc5 Bxc5 11. b4 Bb6 12. Bb2 Bc7 13. Rc1 a6 14. Qc2 d4 15. exd4 Nxd4 16. Nxd4 Qxd4 17. Rcd1 Qh4 18. g3 Qh3 19. Bf1 Qh5 20. Ne4 Ng4 21. h3 Ne5 22. Bxe5 Bxe5 23. Nd6 Bxd6 24. Rxd6 e5 25. Qe2 Qxe2 26. Rxe2 Bf5 27. Bg2 Rab8 28. Red2 e4 29. c5 h6 30. g4 Bg6 31. Bf1 e3 32. fxe3 Rxe3 33. Kf2 Rxa3 34. Bc4 Rxh3 35. R2d4 Ra3 36. Rd7 Re8 37. Rxb7 Ree3 38. Rf4 Rec3 39. Bxf7+ Bxf7 40. Rbxf7 Rc2+ 41. Kg1 Rg3+ 42. Kh1 Rxg4 43. Rf8+ 1-0

[Event "Sao Bento do Sul op 05"]
[Site "Sao Bento do Sul"]
[Date "2019.05.18"]
[Round "5"]
[White "Da Costa, Michael David"]
[Black "Acosta, Pablo Alejandro"]
[Result "1-0"]
[ECO "D37"]
[BlackElo "2002"]
[PlyCount "45"]
[EventDate "2019.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 e6 2. c4 d5 3. Nc3 Nf6 4. Nf3 Be7 5. Bf4 0-0 6. e3 c5 7. Be2 Qa5 8. 0-0 dxc4 9. dxc5 Qxc5 10. Qa4 a6 11. Qxc4 Qa7 12. Rfd1 b5 13. Qc7 Qxc7 14. Bxc7 Bd7 15. Ne5 Ra7 16. Bb6 Rb7 17. Ba5 Nc6 18. Bf3 Rc8 19. Rac1 Nxa5 20. Bxb7 Nxb7 21. Nxd7 Ne8 22. Ne4 Rxc1 23. Rxc1 1-0

[Event "Sao Bento do Sul op 05"]
[Site "Sao Bento do Sul"]
[Date "2019.05.18"]
[Round "3"]
[White "Da Costa, Michael David"]
[Black "Ribeiro, Thiago"]
[Result "1-0"]
[ECO "D94"]
[BlackElo "1369"]
[PlyCount "103"]
[EventDate "2019.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 g6 2. c4 d5 3. Nc3 Nf6 4. Nf3 Bg7 5. e3 Bg4 6. Be2 Bxf3 7. Bxf3 e6 8. 0-0 0-0 9. Bd2 c6 10. cxd5 cxd5 11. Rc1 Nc6 12. a3 Qb6 13. Na4 Qc7 14. b4 a6 15. Nc5 Rac8 16. Nd3 b6 17. Ne5 Qb7 18. Nxc6 Rxc6 19. Rxc6 Qxc6 20. Qc1 Qb7 21. Qb1 Nd7 22. Rc1 Rc8 23. a4 Rc6 24. b5 axb5 25. axb5 Rxc1+ 26. Qxc1 Nb8 27. Bb4 Qd7 28. Be2 e5 29. dxe5 Bxe5 30. Qd2 Qc7 31. g3 Bd6 32. Bxd6 Qxd6 33. Bf3 Nd7 34. Qxd5 Qf6 35. Qxd7 Qxf3 36. Qd8+ Kg7 37. Qxb6 Qd1+ 38. Kg2 Qd5+ 39. f3 Qd2+ 40. Kh3 Qd7+ 41. g4 f6 42. Qc5 Qb7 43. Qc6 Qe7 44. Qc3 Qb7 45. Qc6 Qe7 46. e4 Qa3 47. Kg3 Qe3 48. Qc7+ Kf8 49. Qd6+ Kg7 50. Qe7+ Kh6 51. Qf8+ Kg5 52. h4# 1-0

[Event "Sao Bento do Sul op 05"]
[Site "Sao Bento do Sul"]
[Date "2019.05.18"]
[Round "4"]
[White "Wiltner, Matheus H Andrukiu"]
[Black "Da Costa, Michael David"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "1676"]
[PlyCount "74"]
[EventDate "2019.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Nf6 3. Bb2 g6 4. e3 Bg7 5. Be2 0-0 6. 0-0 c5 7. d3 Nc6 8. Nbd2 b6 9. c4 d4 10. exd4 Nxd4 11. Nxd4 cxd4 12. Bf3 Rb8 13. Re1 Re8 14. b4 Bb7 15. Nb3 e5 16. b5 Nd7 17. Ba3 Bf8 18. Bxf8 Rxf8 19. a4 Qc7 20. a5 Bxf3 21. Qxf3 Nc5 22. Nxc5 bxc5 23. Ra2 Qd6 24. Rb1 f5 25. Rab2 Rfe8 26. b6 e4 27. Qd1 axb6 28. Rxb6 Rxb6 29. Rxb6 Qc7 30. g3 Ra8 31. Qb1 exd3 32. Kf1 Qe7 33. Qxd3 Rxa5 34. Qf3 Ra1+ 35. Kg2 Qe4 36. Rb5 Rg1+ 37. Kxg1 Qxf3 0-1

