[Event "BRA Amateur-ch U2200"]
[Site "Sao Paulo"]
[Date "2022.11.04"]
[Round "3"]
[White "Das Chagas, David Ferreira"]
[Black "Soares, Renan Barbosa Monte"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "1982"]
[BlackElo "1953"]
[PlyCount "56"]
[EventDate "2022.11.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Bc4 g6 5. Nf3 Bg7 6. Nxd4 cxd4 7. Ne2 e6 8. d3 Ne7 9. 0-0 0-0 10. Bb3 d5 11. f4 dxe4 12. dxe4 Nc6 13. a3 a5 14. Ng3 b5 15. f5 a4 16. Ba2 b4 17. Bc4 Ne5 18. Be2 b3 19. cxb3 d3 20. Bf3 axb3 21. Rb1 Qb6+ 22. Kh1 Rd8 23. Bd2 Nc4 24. e5 Bb7 25. f6 Bf8 26. Qe1 Rac8 27. Bd1 Nxd2 28. Qxd2 Rc2 0-1

[Event "BRA Amateur-ch U2200"]
[Site "Sao Paulo"]
[Date "2022.11.04"]
[Round "4"]
[White "Eto, Fabio Luis"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "1597"]
[BlackElo "1982"]
[PlyCount "68"]
[EventDate "2022.11.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. Be3 Be6 9. h3 0-0 10. Qd2 a5 11. a4 d5 12. exd5 Nxd5 13. Nxd5 Bxd5 14. 0-0 Bb4 15. c3 Be7 16. Nc5 b6 17. Rfd1 Bc6 18. Qc2 Qc7 19. Ne4 Nd7 20. Ng5 Nf6 21. Qb3 Rab8 22. Bc4 Be8 23. Nf3 Bc6 24. Ng5 Bd8 25. Bxf7+ Rxf7 26. Rxd8+ Rxd8 27. Bxb6 Rb8 28. Bxc7 Rxb3 29. Nxf7 Kxf7 30. Bxa5 Rxb2 31. Bb4 Nd5 32. Bd6 Ke6 33. c4 Kxd6 34. cxd5 Bxd5 0-1

[Event "BRA Amateur-ch U2200"]
[Site "Sao Paulo"]
[Date "2022.11.03"]
[Round "2"]
[White "Moritani, Sho"]
[Black "Das Chagas, David Ferreira"]
[Result "1-0"]
[ECO "B52"]
[WhiteElo "1648"]
[BlackElo "1982"]
[PlyCount "57"]
[EventDate "2022.11.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 Nc6 6. Nc3 g6 7. d4 cxd4 8. Nxd4 Bg7 9. Be3 Nf6 10. f3 Rc8 11. b3 h5 12. Qd2 h4 13. Rc1 Rh5 14. 0-0 Kf8 15. Rfd1 Rd8 16. Nd5 Ne8 17. Nxc6 bxc6 18. Nf4 Rh7 19. c5 g5 20. cxd6 exd6 21. Ne2 g4 22. f4 Rh5 23. Nd4 Bxd4 24. Bxd4 d5 25. Qc2 Rc8 26. exd5 Rxd5 27. Qh7 c5 28. Qh8+ Ke7 29. Qxh4+ 1-0

[Event "Niteroi op 2nd"]
[Site "Niteroi"]
[Date "2022.09.07"]
[Round "9"]
[White "Das Chagas, David Ferreira"]
[Black "Karoly, Carlos Acacio Gomes"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "1989"]
[BlackElo "1854"]
[PlyCount "9"]
[EventDate "2022.09.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. f4 d5 4. d3 dxe4 5. Nxe4 1/2-1/2

[Event "Niteroi op 2nd"]
[Site "Niteroi"]
[Date "2022.09.06"]
[Round "8"]
[White "Morais, Wagner Soares"]
[Black "Das Chagas, David Ferreira"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "1845"]
[BlackElo "1989"]
[PlyCount "43"]
[EventDate "2022.09.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d6 3. Nc3 g6 4. e4 Bg7 5. Qd2 0-0 6. 0-0-0 Nc6 7. Bh6 e5 8. d5 Nb8 9. h4 Bxh6 10. Qxh6 Ng4 11. Qd2 f5 12. f3 Nf6 13. Bd3 f4 14. Nge2 Nh5 15. Nb1 Nd7 16. c4 a5 17. Nbc3 Nc5 18. Kb1 Bd7 19. Nc1 Ra6 20. N1e2 Qb8 21. Ka1 a4 22. Rhg1 1/2-1/2

[Event "Niteroi op 2nd"]
[Site "Niteroi"]
[Date "2022.09.05"]
[Round "7"]
[White "Das Chagas, David Ferreira"]
[Black "Fernandes, Marcio Rosa"]
[Result "1-0"]
[ECO "A39"]
[WhiteElo "1989"]
[BlackElo "1763"]
[PlyCount "75"]
[EventDate "2022.09.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 g6 3. g3 c5 4. Bg2 Bg7 5. 0-0 0-0 6. d4 cxd4 7. Nxd4 Nc6 8. Nc3 Ng4 9. e3 Nge5 10. b3 Nxd4 11. exd4 Nc6 12. Be3 e6 13. Rc1 Ne7 14. d5 Nf5 15. Bc5 d6 16. Ba3 Qa5 17. Bb2 e5 18. a3 Bd7 19. Ne4 Rac8 20. g4 Nh4 21. Nxd6 Nxg2 22. Nxc8 Nf4 23. Ne7+ Kh8 24. Re1 f6 25. Re3 h5 26. gxh5 gxh5 27. Ng6+ Kg8 28. Nxf4 exf4 29. Re7 Bg4 30. Qd3 Qc5 31. Rce1 Rf7 32. Rxf7 Kxf7 33. Qe4 Bd7 34. Qxf4 Kg6 35. Re3 Kf7 36. b4 Qc8 37. Qd6 Bh3 38. Re7+ 1-0

[Event "Niteroi op 2nd"]
[Site "Niteroi"]
[Date "2022.09.04"]
[Round "5"]
[White "Das Chagas, David Ferreira"]
[Black "Marocco, Gabriel Leao Quadro"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1989"]
[BlackElo "1482"]
[PlyCount "67"]
[EventDate "2022.09.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 Nf6 4. Nf3 a6 5. Be2 e6 6. 0-0 Be7 7. d3 b5 8. Qe1 0-0 9. Kh1 Bb7 10. Ng5 d5 11. e5 Nfd7 12. h4 h6 13. Nf3 Nc6 14. h5 f6 15. Qg3 fxe5 16. fxe5 Kh8 17. Bf4 Rf5 18. Kg1 Rxh5 19. Nh2 Bh4 20. Qg6 Rf5 21. Qxe6 Nd4 22. Qd6 Be7 23. Qg6 Nf8 24. Qg3 b4 25. Bg4 bxc3 26. bxc3 h5 27. Qh3 Rxf4 28. Qxh5+ Kg8 29. Rxf4 g6 30. Qh3 Nc6 31. Be6+ Nxe6 32. Qxe6+ Kh8 33. Rf7 Rb8 34. Qxg6 1-0

[Event "Niteroi op 2nd"]
[Site "Niteroi"]
[Date "2022.09.04"]
[Round "6"]
[White "Marcondes, Igor Dalcol"]
[Black "Das Chagas, David Ferreira"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "1783"]
[BlackElo "1989"]
[PlyCount "34"]
[EventDate "2022.09.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bd3 e5 7. Nde2 Be7 8. Ng3 Nc6 9. 0-0 Be6 10. a3 Rc8 11. Be3 Na5 12. Nh5 Nxh5 13. Qxh5 Qd7 14. Qe2 Nc4 15. Bc1 Qc6 16. Kh1 g5 17. Rd1 Bd8 1/2-1/2

[Event "Niteroi op 2nd"]
[Site "Niteroi"]
[Date "2022.09.03"]
[Round "4"]
[White "Valente, Gabriel Luis Cavalc"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "A21"]
[WhiteElo "1800"]
[BlackElo "1989"]
[PlyCount "52"]
[EventDate "2022.09.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. c4 e5 2. g3 f5 3. Bg2 Nf6 4. e3 Nc6 5. Ne2 Be7 6. Nbc3 d6 7. 0-0 0-0 8. b3 Qe8 9. Nd5 Bd8 10. Bb2 Ne7 11. Nxf6+ gxf6 12. d4 Ng6 13. Rc1 Rb8 14. c5 e4 15. cxd6 cxd6 16. Ba3 Be7 17. Qd2 Bd7 18. Rc2 Qd8 19. Rfc1 Bb5 20. Nc3 Bd3 21. Rb2 Qa5 22. Na4 Qa6 23. Bb4 Rbc8 24. Nc3 Rc6 25. Nd5 Rfc8 26. Bh3 Rxc1+ 0-1

[Event "Titled Tuesday intern op 09th Aug Late"]
[Site "Chess.com INT"]
[Date "2022.08.09"]
[Round "5"]
[White "Das Chagas, David Ferreira"]
[Black "Hartikainen, Jarmo"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1989"]
[BlackElo "2133"]
[PlyCount "96"]
[EventDate "2022.08.09"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 e6 4. Nf3 d5 5. Be2 Nc6 6. d3 Be7 7. 0-0 h5 8. Qe1 h4 9. Ng5 Nh6 10. Qxh4 Nd4 11. Bd1 Bd7 12. h3 Qc7 13. Qf2 Bc6 14. e5 0-0-0 15. Ne2 Nxe2+ 16. Bxe2 Rdf8 17. c3 d4 18. Bd2 Nf5 19. Ne4 Bh4 20. Qf3 Ng3 21. Rfc1 f5 22. exf6 gxf6 23. Be1 Rhg8 24. Bxg3 Bxg3 25. cxd4 Bxf4 26. Rxc5 f5 27. Rac1 fxe4 28. dxe4 Bh2+ 29. Kh1 Rxf3 30. Bxf3 Rf8 31. d5 Rxf3 32. dxc6 b6 33. Rg5 Qf4 34. Rg8+ Kc7 35. Rg7+ Kd6 36. gxf3 Qxc1+ 37. Kxh2 Qxb2+ 38. Rg2 Qe5+ 39. Kh1 Kxc6 40. Rf2 b5 41. Kg2 a5 42. h4 b4 43. Rc2+ Kb5 44. Kf2 a4 45. Ke3 b3 46. axb3 axb3 47. Rc1 b2 48. Rb1 Qc3+ 0-1

[Event "Titled Tuesday intern op 09th Aug Late"]
[Site "Chess.com INT"]
[Date "2022.08.09"]
[Round "3"]
[White "Helin, Mikael"]
[Black "Das Chagas, David Ferreira"]
[Result "1-0"]
[ECO "A21"]
[WhiteElo "1726"]
[BlackElo "1989"]
[PlyCount "71"]
[EventDate "2022.08.09"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 f5 3. g3 Nf6 4. Bg2 Bc5 5. e3 0-0 6. Nge2 e4 7. h3 d6 8. 0-0 Nc6 9. a3 a5 10. Rb1 Be6 11. Nd5 Nxd5 12. cxd5 Bxd5 13. Nf4 Bc4 14. d3 Ba6 15. Re1 Qe7 16. d4 Bb6 17. d5 Ne5 18. b4 axb4 19. axb4 Rf6 20. b5 g5 21. Ne6 Bxb5 22. Rxb5 Nd3 23. Re2 Ra1 24. Rc2 f4 25. gxf4 gxf4 26. Rxb6 cxb6 27. Rc8+ Kf7 28. Qh5+ Rg6 29. Qxh7+ Kf6 30. Qh8+ Kf5 31. Qxa1 Rxg2+ 32. Kxg2 f3+ 33. Kh2 Qh4 34. Rf8+ Kg6 35. Qg7+ Kh5 36. Rh8# 1-0

[Event "Titled Tuesday intern op 09th Aug Late"]
[Site "Chess.com INT"]
[Date "2022.08.09"]
[Round "2"]
[White "Roberson, Peter T"]
[Black "Das Chagas, David Ferreira"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2429"]
[BlackElo "1989"]
[PlyCount "75"]
[EventDate "2022.08.09"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 h6 2. Qh5 Nf6 3. Qf3 e5 4. Kd1 Nc6 5. c3 d5 6. h3 dxe4 7. Qe3 Bf5 8. Bb5 Bd6 9. Qe1 a6 10. Bxc6+ bxc6 11. Ne2 Bc5 12. Na3 Bg6 13. Nc2 Nd5 14. b4 Bb6 15. Bb2 a5 16. Ng3 f5 17. a3 0-0 18. h4 axb4 19. axb4 Rxa1+ 20. Bxa1 c5 21. b5 Ba5 22. h5 Bf7 23. Kc1 Be6 24. c4 Nb4 25. Nxb4 cxb4 26. Bxe5 Bxc4 27. Qe3 Bd3 28. Kb2 Qe7 29. Qf4 b3 30. Nxf5 Qb4 31. Bc3 Qa4 32. Ra1 Bxc3+ 33. dxc3 Qxa1+ 34. Kxa1 Kh7 35. Qg4 Rf7 36. Qg6+ Kg8 37. Nxh6+ Kf8 38. Qxf7# 1-0

[Event "Titled Tuesday intern op 02nd Aug Late"]
[Site "Chess.com INT"]
[Date "2022.08.02"]
[Round "11"]
[White "Das Chagas, David Ferreira"]
[Black "Curtis, John"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1989"]
[BlackElo "2292"]
[PlyCount "50"]
[EventDate "2022.08.02"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 d6 5. c3 Bb6 6. h3 Qe7 7. d3 Nf6 8. Be3 Be6 9. Nbd2 0-0-0 10. a4 Bxe3 11. fxe3 d5 12. exd5 Nxd5 13. Qe2 f6 14. a5 a6 15. d4 exd4 16. cxd4 Ndb4 17. Rfc1 Rhe8 18. Kf2 g5 19. Nb3 h5 20. Nc5 Bxc4 21. Rxc4 g4 22. hxg4 hxg4 23. Nh4 Nxd4 24. Qxg4+ f5 25. exd4 fxg4 0-1

[Event "Titled Tuesday intern op 02nd Aug Late"]
[Site "Chess.com INT"]
[Date "2022.08.02"]
[Round "8"]
[White "Das Chagas, David Ferreira"]
[Black "Gardezi, Arsal"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "1989"]
[BlackElo "2075"]
[PlyCount "63"]
[EventDate "2022.08.02"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e6 2. f4 d5 3. e5 c5 4. Nf3 Nc6 5. Na3 a6 6. c3 Nge7 7. Nc2 d4 8. d3 b5 9. Be2 Bb7 10. 0-0 h5 11. a4 Nf5 12. Qe1 Be7 13. Bd2 Rc8 14. axb5 axb5 15. Qf2 Na5 16. Kh1 Nb3 17. Ra7 Qb6 18. Ra2 Bd5 19. c4 bxc4 20. dxc4 Be4 21. Nce1 h4 22. Ng5 Nxd2 23. Nef3 Bxf3 24. gxf3 Nxf1 25. Bxf1 Ne3 26. Ne4 Qb3 27. Ra7 Nd1 28. Qg2 Ne3 29. Qxg7 Rf8 30. Nd6+ Bxd6 31. exd6 Rd8 32. Re7# 1-0

[Event "Titled Tuesday intern op 02nd Aug Late"]
[Site "Chess.com INT"]
[Date "2022.08.02"]
[Round "6"]
[White "Das Chagas, David Ferreira"]
[Black "Magallanes, Rey Jomar"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1989"]
[BlackElo "2032"]
[PlyCount "74"]
[EventDate "2022.08.02"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 e6 4. Nf3 Nf6 5. Be2 Be7 6. 0-0 0-0 7. d3 d5 8. Qe1 dxe4 9. dxe4 Nc6 10. h3 Nd4 11. Bd1 Bd7 12. Be3 Bc6 13. e5 Nd5 14. Bd2 Nxc3 15. bxc3 Bxf3 16. Bxf3 Nxc2 17. Qe2 Nxa1 18. Rxa1 Qb6 19. Kh2 Rfd8 20. Be3 Qa5 21. Qc4 b5 22. Qb3 c4 23. Qc2 Rac8 24. Be4 h6 25. g4 b4 26. cxb4 Qxb4 27. f5 exf5 28. gxf5 Qb5 29. Bf4 Bg5 30. Kg3 Bxf4+ 31. Kxf4 c3 32. e6 fxe6 33. fxe6 Qg5+ 34. Kf3 Rd2 35. Bh7+ Kh8 36. Qg6 Rf8+ 37. Ke4 Qf4# 0-1

[Event "Titled Tuesday intern op 02nd Aug Late"]
[Site "Chess.com INT"]
[Date "2022.08.02"]
[Round "5"]
[White "Golubenko, Valentina"]
[Black "Das Chagas, David Ferreira"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2209"]
[BlackElo "1989"]
[PlyCount "65"]
[EventDate "2022.08.02"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 h5 3. h4 e6 4. Bg2 d5 5. c4 c6 6. Nf3 Ng4 7. 0-0 Be7 8. Nbd2 Nd7 9. e4 g5 10. cxd5 gxh4 11. dxe6 fxe6 12. gxh4 Bxh4 13. Nxh4 Qxh4 14. Nf3 Qf6 15. Bg5 Qg6 16. Qe2 Nf8 17. d5 Bd7 18. Rad1 Nh7 19. Bh4 0-0 20. Bg3 Rae8 21. d6 Ng5 22. Nh4 Qf6 23. f3 Nh6 24. f4 Ngf7 25. Qxh5 Kg7 26. e5 Qd8 27. Qg6+ Kh8 28. Be4 Nf5 29. Nxf5 exf5 30. Kg2 Ng5 31. Rh1+ Nh3 32. Rxh3+ Qh4 33. Rxh4# 1-0

[Event "Titled Tuesday intern op 02nd Aug Late"]
[Site "Chess.com INT"]
[Date "2022.08.02"]
[Round "10"]
[White "Gonzalez Vega, Alejandro"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "2092"]
[BlackElo "1989"]
[PlyCount "58"]
[EventDate "2022.08.02"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 h6 2. d4 e6 3. Bd3 d5 4. e5 c5 5. c3 Nc6 6. Nf3 Qb6 7. a3 Bd7 8. b4 cxd4 9. cxd4 Nxd4 10. Be3 Nxf3+ 11. Qxf3 d4 12. Bd2 Bc6 13. Qg3 Ne7 14. 0-0 Nf5 15. Bxf5 exf5 16. a4 g5 17. e6 Bg7 18. exf7+ Kxf7 19. Qb3+ Kg6 20. Qe6+ Bf6 21. b5 Be4 22. Qb3 Rac8 23. a5 Qd6 24. Na3 Be5 25. h4 gxh4 26. Nc4 Rxc4 27. Qxc4 h3 28. g3 Bxg3 29. Bb4 h2# 0-1

[Event "Titled Tuesday intern op 02nd Aug Late"]
[Site "Chess.com INT"]
[Date "2022.08.02"]
[Round "9"]
[White "Vargas, Mauricio"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "2094"]
[BlackElo "1989"]
[PlyCount "94"]
[EventDate "2022.08.02"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 h6 2. f4 e6 3. Nc3 d5 4. Nf3 dxe4 5. Nxe4 Nf6 6. Nc3 Nc6 7. Bb5 Bd7 8. 0-0 a6 9. Bxc6 Bxc6 10. d3 Bc5+ 11. Kh1 Ng4 12. Qe1 Qe7 13. h3 Nf6 14. Ne5 Bd7 15. Ne4 Ba7 16. a3 h5 17. Bd2 h4 18. Bb4 c5 19. Bc3 Nh5 20. b4 Bc6 21. Nxc6 bxc6 22. bxc5 f6 23. Nd6+ Kf8 24. Qxh4 Bxc5 25. Ne4 Kf7 26. Qe1 Ba7 27. Bb4 Bc5 28. Bxc5 Qd7 29. Nd6+ Kg8 30. f5 e5 31. Ne4 Qd5 32. Bb4 a5 33. Bd2 Kf7 34. Qe2 Rh6 35. Qg4 Rh7 36. Qg6+ Kg8 37. g4 Ng3+ 38. Kg1 Nxe4 39. dxe4 Qxd2 40. Rad1 Qe3+ 41. Kg2 Qxh3+ 42. Kf2 Qh2+ 43. Ke1 Qg3+ 44. Ke2 Rh2+ 45. Rf2 Qxf2+ 46. Kd3 Qxc2+ 47. Ke3 Qe2# 0-1

[Event "Titled Tuesday intern op 02nd Aug Late"]
[Site "Chess.com INT"]
[Date "2022.08.02"]
[Round "7"]
[White "Yang, Kevin S"]
[Black "Das Chagas, David Ferreira"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2082"]
[BlackElo "1989"]
[PlyCount "77"]
[EventDate "2022.08.02"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. Qc2 0-0 7. e3 c6 8. Bd3 h6 9. Bf4 Bd6 10. Bg3 Na6 11. a3 Nc7 12. Nf3 Bg4 13. Ne5 Re8 14. 0-0 Bc8 15. f4 a6 16. b4 a5 17. b5 c5 18. Bh4 c4 19. Bh7+ Kf8 20. b6 Ne6 21. Nxd5 Bxe5 22. fxe5 Qxd5 23. exf6 g5 24. Be4 Qb5 25. Bg3 Qxb6 26. Be5 Bd7 27. Rab1 Qa7 28. Rxb7 Qa6 29. Rfb1 Bc6 30. R7b6 Bxe4 31. Qxe4 Red8 32. Qh7 Ke8 33. Rb7 Rd7 34. Rxd7 Kxd7 35. Qxf7+ Kd8 36. Qe7+ Kc8 37. f7 c3 38. f8Q+ Nxf8 39. Qc7# 1-0

[Event "BRA-ch U2000 Amateurs"]
[Site "Sao Paulo"]
[Date "2022.06.19"]
[Round "7"]
[White "Das Chagas, David Ferreira"]
[Black "Pomar, Marcelo Nascimento"]
[Result "1/2-1/2"]
[ECO "C55"]
[WhiteElo "1969"]
[BlackElo "1963"]
[PlyCount "129"]
[EventDate "2022.06.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. 0-0 Be7 5. d3 d6 6. c3 0-0 7. Be3 Na5 8. Bb5 a6 9. Ba4 b5 10. Bc2 c5 11. Nbd2 Qc7 12. Qe2 Bd7 13. Rfd1 d5 14. Nf1 d4 15. Bg5 h6 16. Bd2 Nc6 17. Ng3 Rfe8 18. Rf1 Bf8 19. Rac1 Rac8 20. Bb3 Bd6 21. Nh4 Na5 22. Nhf5 Bxf5 23. Nxf5 Qd8 24. Bc2 Nc6 25. Kh1 Ne7 26. g4 Nxf5 27. gxf5 c4 28. Rg1 Kh7 29. Rg3 dxc3 30. bxc3 Re7 31. d4 Qe8 32. f3 Rd8 33. Be3 Nh5 34. Rg4 Nf6 35. Rg3 Nh5 36. Rg4 Nf6 37. Rh4 Nd7 38. Rg1 b4 39. cxb4 Nf6 40. dxe5 Rxe5 41. Qxc4 Rc8 42. Qe2 Bxb4 43. Qg2 Qf8 44. Bf4 Rec5 45. Bb1 Bc3 46. Bd6 Qh8 47. Bxc5 Rxc5 48. Rc1 Rb5 49. Qc2 Qb8 50. Qxc3 Rxb1 51. Rh3 Rb2 52. Rg3 Nh5 53. Rg2 Rxg2 54. Kxg2 Nf4+ 55. Kh1 Ne2 56. Qc7 Qb2 57. Rd1 Qxa2 58. f6 Qb3 59. Rf1 gxf6 60. Qc6 Qd3 61. Kg2 Nf4+ 62. Kg3 Qxf1 63. Kxf4 Qf2 64. Qc8 Kg7 65. Qg4+ 1/2-1/2

[Event "BRA-ch U2000 Amateurs"]
[Site "Sao Paulo"]
[Date "2022.06.18"]
[Round "5"]
[White "Das Chagas, David Ferreira"]
[Black "Bail, Ellen Larissa"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "1969"]
[BlackElo "1894"]
[PlyCount "38"]
[EventDate "2022.06.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. e3 Be7 5. Nf3 0-0 6. Bd3 Nbd7 7. 0-0 b6 8. cxd5 Nxd5 9. e4 Nxc3 10. bxc3 Bb7 11. Qc2 h6 12. e5 c5 13. Be3 Rc8 14. Qe2 Qc7 15. Ba6 Bxa6 16. Qxa6 cxd4 17. cxd4 Qc4 18. Qxa7 Rc7 19. Rfc1 Qxc1+ 1/2-1/2

[Event "BRA-ch U2000 Amateurs"]
[Site "Sao Paulo"]
[Date "2022.06.18"]
[Round "6"]
[White "Reichert, Thiago da Cruz"]
[Black "Das Chagas, David Ferreira"]
[Result "1/2-1/2"]
[ECO "D46"]
[WhiteElo "1997"]
[BlackElo "1969"]
[PlyCount "52"]
[EventDate "2022.06.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 Be7 5. Nc3 0-0 6. Bd3 c6 7. 0-0 Nbd7 8. b3 Re8 9. Bb2 Bd6 10. e4 dxe4 11. Nxe4 Nxe4 12. Bxe4 Nf6 13. Bc2 Qa5 14. Ne5 c5 15. dxc5 Qxc5 16. Qe2 Bxe5 17. Bxe5 Nd7 18. Bb2 f6 19. Rfd1 Nf8 20. a4 Qc7 21. Ba3 e5 22. Bd6 Qf7 23. Be4 Ne6 24. Bd5 Kh8 25. b4 Qg6 26. Bxe6 Bxe6 1/2-1/2

[Event "BRA-ch U2000 Amateurs"]
[Site "Sao Paulo"]
[Date "2022.06.17"]
[Round "3"]
[White "Das Chagas, David Ferreira"]
[Black "Tsuchie, Pedro Pinheiro"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "1969"]
[BlackElo "1835"]
[PlyCount "101"]
[EventDate "2022.06.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 e6 2. f4 d5 3. e5 c5 4. Nf3 Nc6 5. Na3 Nh6 6. c3 Bd7 7. Nc2 Qb6 8. Be2 d4 9. d3 Be7 10. Na3 Qc7 11. Bd2 Rd8 12. 0-0 0-0 13. Rc1 Qb8 14. Nc2 a6 15. Kh1 Qa7 16. Qe1 f6 17. c4 Qb8 18. exf6 Bxf6 19. Ng5 b5 20. Bf3 bxc4 21. Bxc6 Bxc6 22. Qxe6+ Kh8 23. Qxc6 Bxg5 24. fxg5 Ng4 25. g3 Qxb2 26. Qxc5 Nf2+ 27. Kg1 cxd3 28. Rxf2 Rxf2 29. Kxf2 dxc2 30. Rxc2 Qb7 31. Bf4 Qh1 32. h4 Qh2+ 33. Kf3 Qh1+ 34. Kf2 Qh2+ 35. Kf3 Qh1+ 36. Rg2 Qf1+ 37. Rf2 Qh1+ 38. Kg4 Qd1+ 39. Kh3 Qh1+ 40. Kg4 Qd1+ 41. Rf3 Qe2 42. Be5 Re8 43. Qxd4 h5+ 44. Kf4 Rf8+ 45. Bf6 Qe6 46. Qe5 Qxa2 47. Ke3 Qb3+ 48. Kf2 Qb6+ 49. Kg2 gxf6 50. gxf6 Qb5 51. Qe7 1-0

[Event "BRA-ch U2000 Amateurs"]
[Site "Sao Paulo"]
[Date "2022.06.17"]
[Round "4"]
[White "Santana, Daniel Costa"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "E62"]
[WhiteElo "1815"]
[BlackElo "1969"]
[PlyCount "130"]
[EventDate "2022.06.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 d6 5. 0-0 c6 6. c4 0-0 7. Nc3 Qc7 8. Bf4 Nbd7 9. c5 Nh5 10. cxd6 exd6 11. Bg5 h6 12. Be3 Nb6 13. b3 Be6 14. Qd2 Kh7 15. Rac1 Qd7 16. Ne1 Nf6 17. f3 Rad8 18. Nd3 Qe7 19. Bf2 Rfe8 20. e4 d5 21. e5 Nfd7 22. Nf4 Bf5 23. Nd3 Be6 24. f4 Bf5 25. a4 Na8 26. b4 Nab6 27. Nc5 Nc4 28. Qa2 Nxc5 29. bxc5 b6 30. cxb6 axb6 31. Nd1 Bd3 32. Re1 Qb4 33. Rc3 Bb1 34. Qe2 Bf5 35. g4 Bd7 36. Rf3 Bxg4 37. Bh3 Bxf3 38. Qxf3 f5 39. Bh4 Ra8 40. Nc3 Nd2 41. Qg3 Qxd4+ 42. Kh1 Re6 43. Rd1 b5 44. Nb1 Qe4+ 45. Bg2 Qc2 46. Qe1 Nxb1 47. Rxb1 Rxa4 48. Rc1 Qb2 49. Bg3 Ra2 50. Qg1 Bf8 51. Rb1 Qe2 52. Ra1 Rxa1 53. Qxa1 Bc5 54. h4 Qe3 55. Kh2 Bf8 56. Qa8 Kg7 57. Qc8 Kf7 58. Qd7+ Be7 59. Qc8 b4 60. h5 g5 61. Qh8 gxf4 62. Qh7+ Ke8 63. Be1 Qxe1 64. Qxf5 Qxe5 65. Qxe5 Rxe5 0-1

[Event "BRA-ch U2000 Amateurs"]
[Site "Sao Paulo"]
[Date "2022.06.16"]
[Round "2"]
[White "Cruz, Natan Gomes"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "B45"]
[WhiteElo "1783"]
[BlackElo "1969"]
[PlyCount "126"]
[EventDate "2022.06.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. a3 d5 7. exd5 Nxd5 8. Nxd5 Qxd5 9. Be3 a6 10. c4 Qd7 11. Be2 Be7 12. 0-0 0-0 13. Bf3 Nxd4 14. Qxd4 Qxd4 15. Bxd4 Bd6 16. Rad1 Bc7 17. Rfe1 Rb8 18. Bc5 Re8 19. Bd6 Bxd6 20. Rxd6 g6 21. c5 Kg7 22. Red1 Re7 23. Rb6 e5 24. Rd8 e4 25. Be2 Ra8 26. Bc4 Rc7 27. b4 a5 28. h3 axb4 29. axb4 Ra1+ 30. Kh2 Rc1 31. Bd5 Rd1 32. Rdd6 Re1 33. Kg3 e3 34. fxe3 Rxe3+ 35. Kf2 Ree7 36. Bf3 Re5 37. Rd4 Ree7 38. Rbd6 Bd7 39. Re4 Rxe4 40. Bxe4 Kf8 41. Rb6 Bc8 42. Ke3 Ke7 43. Kd4 Ke8 44. c6 bxc6 45. Rxc6 Rd7+ 46. Bd5 Bb7 47. Rc5 Ke7 48. Kc4 Bxd5+ 49. Rxd5 Rxd5 50. Kxd5 Kd7 51. g4 h5 52. g5 h4 53. Ke4 Kd6 54. Kf4 Kd5 55. Kg4 Kc4 56. Kxh4 Kxb4 57. Kg4 Kc5 58. h4 Kd6 59. h5 gxh5+ 60. Kxh5 Ke5 61. Kg4 Ke4 62. g6 fxg6 63. Kg5 Ke5 0-1

[Event "BRA-ch U2000 Amateurs"]
[Site "Sao Paulo"]
[Date "2022.06.16"]
[Round "1"]
[White "Das Chagas, David Ferreira"]
[Black "Santos, Sidney Marcus"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1969"]
[BlackElo "1731"]
[PlyCount "101"]
[EventDate "2022.06.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. f4 Nc6 4. Nf3 g6 5. Bb5 Bg7 6. Bxc6 bxc6 7. 0-0 d6 8. Qe1 Ne7 9. d3 0-0 10. Qh4 Rb8 11. Ng5 h6 12. Nf3 Kh7 13. Kh1 Bd7 14. Qf2 Qb6 15. e5 d5 16. Na4 Qb5 17. Nxc5 Bc8 18. Nb3 a5 19. a4 Qa6 20. Qc5 Re8 21. Nxa5 Bd7 22. Nb3 Nc8 23. Qc3 Bf8 24. Nc5 Qa7 25. Be3 Nb6 26. a5 d4 27. Qxd4 Nd5 28. Nxd7 Qxd7 29. c4 c5 30. Qe4 Nb4 31. Rad1 Qa4 32. Bd2 Qxa5 33. Bc3 Qa4 34. g4 Na2 35. f5 Nxc3 36. bxc3 Rb2 37. fxg6+ fxg6 38. Nh4 Bg7 39. Ra1 Qd7 40. Qxg6+ Kg8 41. Rf3 Reb8 42. Ng2 Rb1+ 43. Rf1 R1b2 44. Nf4 Qb7+ 45. Kg1 Kh8 46. Qxe6 Rd8 47. Nd5 Qb3 48. Qe7 Rxd5 49. Ra8+ Kh7 50. Ra7 Rg2+ 51. Kxg2 1-0

[Event "Florianopolis op 09"]
[Site "Florianopolis"]
[Date "2021.09.26"]
[Round "5"]
[White "Das Chagas, David Ferreira"]
[Black "Pereira, Armando Scharlau"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "1993"]
[BlackElo "1704"]
[PlyCount "87"]
[EventDate "2021.09.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. f4 d5 3. e5 c5 4. Nf3 Nc6 5. Na3 a6 6. c3 Bd7 7. Nc2 Nge7 8. Bd3 c4 9. Be2 Nf5 10. d3 b5 11. 0-0 g6 12. Qe1 Qb6+ 13. Kh1 Be7 14. Bd2 h5 15. Rb1 h4 16. d4 Kf8 17. Ne3 Kg7 18. g4 hxg3 19. Nxf5+ exf5 20. Qxg3 Be6 21. Rg1 Rag8 22. Be1 Kf8 23. Qg2 a5 24. Bg3 b4 25. Qf2 Qd8 26. Qe3 Qb6 27. Kg2 Qa7 28. Kf2 Ke8 29. Rgc1 Kf8 30. Ng5 Bxg5 31. fxg5 Kg7 32. h4 Ne7 33. Rh1 Qb6 34. b3 cxb3 35. Rxb3 Nc6 36. Rd1 Rb8 37. cxb4 axb4 38. a3 Qa5 39. Rc1 Rhc8 40. Rc5 Qa4 41. axb4 Rxb4 42. Ra3 Rxd4 43. Rxa4 Rxa4 44. Qb3 1-0

[Event "Florianopolis op 09"]
[Site "Florianopolis"]
[Date "2021.09.26"]
[Round "6"]
[White "Rodrigues Mota, Romulo Cardoso S"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "C10"]
[WhiteElo "1767"]
[BlackElo "1993"]
[PlyCount "100"]
[EventDate "2021.09.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 h6 2. d4 e6 3. Nc3 d5 4. exd5 exd5 5. Nf3 Nf6 6. Bd3 Be7 7. 0-0 0-0 8. Re1 Bd6 9. Ne5 Nc6 10. Nb5 Bb4 11. Re3 Nxe5 12. dxe5 Ng4 13. Rg3 Qh4 14. h3 Bc5 15. Kf1 Nxf2 16. Qf3 Nh1 17. Bf4 Nxg3+ 18. Bxg3 Qe7 19. b4 Bb6 20. Re1 a6 21. Nc3 c6 22. a3 a5 23. b5 Be6 24. Na4 Bc5 25. Qh5 Bxa3 26. Bf4 f5 27. exf6 Qxf6 28. Kg1 Qxf4 29. Rxe6 Qc1+ 30. Kh2 Qf4+ 31. Kg1 Qf2+ 32. Kh2 Qf7 33. Qg4 Qf4+ 34. Qxf4 Rxf4 35. bxc6 Rxa4 36. c7 Rc8 37. c4 Rxc7 38. cxd5 Rd4 39. Bg6 Rxd5 40. h4 Rd8 41. h5 a4 42. Be8 Bd6+ 43. Kh3 a3 44. Ba4 Re7 45. Rg6 Re3+ 46. Kh4 Be7+ 47. Kg4 Rd4+ 48. Kf5 Rxa4 49. g4 Bf6 50. g5 Re5# 0-1

[Event "Florianopolis op 09"]
[Site "Florianopolis"]
[Date "2021.09.25"]
[Round "4"]
[White "Cezar, Ricardo de Almeida"]
[Black "Das Chagas, David Ferreira"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "1738"]
[BlackElo "1993"]
[PlyCount "87"]
[EventDate "2021.09.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 0-0 7. Bd3 c6 8. Qc2 h6 9. Bf4 Re8 10. Nf3 Nbd7 11. 0-0 Nh5 12. Nxd5 Nxf4 13. Nxf4 Bd6 14. Ne2 Nf6 15. Nc3 Bg4 16. Ne4 Bxf3 17. Nxd6 Ng4 18. Bh7+ Kf8 19. Qc5 b6 20. Nxf7+ bxc5 21. Nxd8 Bd5 22. Nb7 cxd4 23. Bf5 Nf6 24. exd4 Reb8 25. Nc5 Rxb2 26. Be6 Rab8 27. Bxd5 cxd5 28. Rfc1 a5 29. f3 Kf7 30. Nd3 Rd2 31. Rd1 Rc2 32. Rdc1 Rd2 33. Rc3 Kg8 34. a3 a4 35. Rac1 Rb3 36. Nb4 Rxd4 37. Rxb3 axb3 38. Rb1 Kf7 39. Rxb3 Ke6 40. Rd3 Rc4 41. Kf2 Ke5 42. Ke3 d4+ 43. Rxd4 Rc1 44. Nd3+ 1-0

[Event "Florianopolis op 09"]
[Site "Florianopolis"]
[Date "2021.09.25"]
[Round "3"]
[White "Das Chagas, David Ferreira"]
[Black "De Albuquelque, Gabriel Tenorio"]
[Result "1-0"]
[ECO "C25"]
[WhiteElo "1993"]
[BlackElo "1608"]
[PlyCount "91"]
[EventDate "2021.09.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. h3 Bg7 6. d4 h6 7. Bc4 d6 8. a3 Nf6 9. Qd3 Nd7 10. Bd2 Nb6 11. Bb3 Bd7 12. 0-0-0 Qe7 13. Nd5 Qd8 14. Rde1 Ne7 15. Nc3 Bc6 16. h4 Ng6 17. h5 Ne7 18. Rhg1 Qd7 19. g3 fxg3 20. Rxg3 f6 21. d5 Ba4 22. Bxa4 Nxa4 23. Nb5 a6 24. Nbd4 Nc5 25. Qc4 0-0-0 26. Bb4 b5 27. Qf1 Na4 28. Ne6 Rdg8 29. Nfd4 f5 30. Nxg7 f4 31. Rd3 Rxg7 32. b3 Nb6 33. Rc3 Na8 34. a4 bxa4 35. Qxa6+ Kb8 36. bxa4 Qc8 37. Qc4 Nb6 38. Qb5 Qb7 39. Nc6+ Kc8 40. Bxd6 Nbxd5 41. exd5 Nxc6 42. Rxc6 Qxb5 43. axb5 Rhg8 44. b6 Kd7 45. Bxc7 f3 46. Bg3 1-0

[Event "Florianopolis op 09"]
[Site "Florianopolis"]
[Date "2021.09.25"]
[Round "2"]
[White "Vicenzi, Liziane Nathalia"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "A52"]
[WhiteElo "1501"]
[BlackElo "1993"]
[PlyCount "42"]
[EventDate "2021.09.24"]
[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 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Bc5 5. e3 Nc6 6. Be2 Ngxe5 7. 0-0 0-0 8. a3 a5 9. Nc3 d6 10. Qc2 Nxf3+ 11. Bxf3 Ne5 12. Be4 Kh8 13. b3 Qh4 14. g3 Qh5 15. Qe2 Ng4 16. f3 Nf6 17. Bb2 c6 18. Rad1 Re8 19. Rd3 Nxe4 20. Nxe4 Rxe4 21. g4 Bxg4 0-1

[Event "Florianopolis op 09"]
[Site "Florianopolis"]
[Date "2021.09.24"]
[Round "1"]
[White "Das Chagas, David Ferreira"]
[Black "Gomes, Maria Eduarda Papin"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1993"]
[BlackElo "1556"]
[PlyCount "100"]
[EventDate "2021.09.24"]
[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 Qa5 4. Bc4 Bf5 5. d3 Nf6 6. Nge2 e6 7. Bd2 c6 8. h3 Qc7 9. g4 Bg6 10. Ng3 Bd6 11. Nge4 Nxe4 12. dxe4 Nd7 13. Qe2 0-0-0 14. 0-0-0 h5 15. Kb1 hxg4 16. hxg4 Bf4 17. Be3 Nf6 18. f3 Rxd1+ 19. Rxd1 Rh2 20. Bxf4 Qxf4 21. Qd3 Nd5 22. Bxd5 exd5 23. Nxd5 cxd5 24. Qxd5 Qc7 25. c3 Rf2 26. Qd4 Rxf3 27. Qxa7 Bxe4+ 28. Ka1 b6 29. Qa6+ Kb8 30. Qa4 Qc6 31. Qd4 Bc2 32. Qd8+ Kb7 33. Rc1 Rd3 34. Qe7+ Rd7 35. Qe2 Be4 36. b3 Bf3 37. Qe5 f6 38. Qe3 Bxg4 39. Kb2 Qd5 40. Rc2 Qd3 41. Qf4 Bf5 42. Rf2 Rd5 43. Rg2 g5 44. Qh2 Qb1+ 45. Ka3 Ra5+ 46. Kb4 Qe4+ 47. c4 Qe7+ 48. Kc3 Qe1+ 49. Kd4 Qa1+ 50. Ke3 Qc3+ 0-1

[Event "Timbo op"]
[Site "Timbo"]
[Date "2021.06.13"]
[Round "5"]
[White "Das Chagas, David Ferreira"]
[Black "Cordeiro, Marco Aurelio Zaror"]
[Result "0-1"]
[ECO "B02"]
[WhiteElo "1982"]
[BlackElo "2179"]
[PlyCount "68"]
[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. e4 Nf6 2. d3 c5 3. f4 e6 4. Nf3 d5 5. e5 Ng8 6. Be2 Nh6 7. 0-0 Be7 8. Na3 0-0 9. c3 Nc6 10. Nc2 b5 11. d4 b4 12. Ne3 a5 13. g4 f6 14. Kh1 fxe5 15. fxe5 Nf7 16. Ng2 Qb6 17. Be3 Bd7 18. h4 a4 19. Rb1 a3 20. g5 axb2 21. Rxb2 Ra3 22. cxb4 cxd4 23. Nxd4 Rxe3 24. Nxe3 Nxd4 25. Bd3 Nxe5 26. Rxf8+ Bxf8 27. Bxh7+ Kxh7 28. Qh5+ Kg8 29. g6 Nxg6 30. Qxg6 Qc7 31. Rf2 Nf5 32. Ng4 Qc1+ 33. Kh2 Bd6+ 34. Kh3 Qc3+ 0-1

[Event "Timbo op"]
[Site "Timbo"]
[Date "2021.06.13"]
[Round "6"]
[White "Dull, Amanda Paul"]
[Black "Das Chagas, David Ferreira"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "1836"]
[BlackElo "1982"]
[PlyCount "34"]
[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. Nf3 d6 3. Bf4 g6 4. Nbd2 Bg7 5. c3 0-0 6. e4 c6 7. Bd3 h6 8. 0-0 Nh5 9. Be3 e5 10. dxe5 dxe5 11. Bc4 Qe7 12. Qc2 Bg4 13. h3 Be6 14. Rad1 Nf4 15. Rfe1 Kh7 16. Bxe6 Nxe6 17. Nc4 Nd7 1/2-1/2

[Event "Timbo op"]
[Site "Timbo"]
[Date "2021.06.12"]
[Round "3"]
[White "Das Chagas, David Ferreira"]
[Black "Calcada, Lucas Galvan"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1982"]
[BlackElo "1505"]
[PlyCount "93"]
[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. e4 c5 2. Nc3 g6 3. f4 Nc6 4. Bb5 Nd4 5. Bc4 Bg7 6. Nf3 e6 7. Nxd4 Bxd4 8. Nb5 d5 9. exd5 exd5 10. Bxd5 a6 11. Nxd4 Qxd5 12. Nf3 Ne7 13. 0-0 0-0 14. d3 Bd7 15. Ne5 Nf5 16. Qe1 Rfe8 17. Qf2 Bc6 18. Bd2 Rad8 19. Bc3 Re6 20. Nxc6 Qxc6 21. Rae1 Rde8 22. Re5 Rxe5 23. fxe5 Qd5 24. Qf3 Qxf3 25. gxf3 Ne3 26. Rf2 Nd1 27. Re2 Nxc3 28. bxc3 f6 29. f4 Kf7 30. Kf2 fxe5 31. fxe5 Ke6 32. Ke3 Rf8 33. Ke4 g5 34. d4 Rf4+ 35. Kd3 cxd4 36. cxd4 b5 37. c3 Rf3+ 38. Re3 Rf7 39. a4 Re7 40. axb5 axb5 41. Ke4 Rd7 42. Rh3 g4 43. Rh6+ Ke7 44. Rxh7+ Ke6 45. d5+ Rxd5 46. Rh6+ Ke7 47. Kxd5 1-0

[Event "Timbo op"]
[Site "Timbo"]
[Date "2021.06.12"]
[Round "2"]
[White "Melo, Sergio Roberto Samp"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1640"]
[BlackElo "1982"]
[PlyCount "30"]
[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. Nf3 Nc6 2. d4 d5 3. g3 Bf5 4. Bg2 Nb4 5. Na3 e6 6. c3 Nc6 7. Nc2 Be7 8. b3 Nf6 9. Bb2 Ne4 10. Ne3 Bg6 11. Rc1 h5 12. Nd2 Bg5 13. f4 Bxf4 14. Bxe4 Bxe4 15. Nxe4 Bxe3 0-1

[Event "Timbo op"]
[Site "Timbo"]
[Date "2021.06.12"]
[Round "4"]
[White "Starke, Bruno Orlando"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "A21"]
[WhiteElo "2138"]
[BlackElo "1982"]
[PlyCount "102"]
[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. c4 e5 2. Nc3 f5 3. g3 Nf6 4. Bg2 Nc6 5. d3 Be7 6. e3 d6 7. Nge2 0-0 8. 0-0 Qe8 9. Rb1 Bd8 10. Nd5 Ne7 11. Nxf6+ Rxf6 12. f4 c6 13. b4 Bd7 14. Bd2 Bc7 15. Nc3 Rb8 16. a4 Kh8 17. Kh1 Ng8 18. b5 exf4 19. gxf4 Rh6 20. bxc6 bxc6 21. Rxb8 Bxb8 22. Qf3 Nf6 23. Ne2 Ng4 24. h3 Nf6 25. Rb1 d5 26. cxd5 cxd5 27. Nd4 Qc8 28. a5 Bd6 29. Qd1 Bc5 30. Rc1 Qf8 31. Nf3 Ng4 32. Qe1 Qe7 33. d4 Bd6 34. Ne5 Nf6 35. Rb1 Ne4 36. Bb4 Be8 37. Bxd6 Rxd6 38. Rb8 h6 39. Qb4 Kh7 40. Bxe4 fxe4 41. Rxe8 Qh4 42. Qxd6 Qxh3+ 43. Kg1 Qxe3+ 44. Kg2 Qe2+ 45. Kg3 Qe1+ 46. Kg4 Qd1+ 47. Kf5 Qh5+ 48. Ke6 Qxe8+ 49. Kxd5 e3 50. f5 Qa8+ 51. Qc6 Qd8+ 0-1

[Event "Timbo op"]
[Site "Timbo"]
[Date "2021.06.11"]
[Round "1"]
[White "Das Chagas, David Ferreira"]
[Black "Deobrochinski, Valentina Hinke"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1982"]
[BlackElo "1343"]
[PlyCount "83"]
[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. e4 c5 2. Nc3 d6 3. f4 g6 4. Nf3 Bg7 5. Be2 Nf6 6. 0-0 Nc6 7. d3 0-0 8. Qe1 Qd7 9. h3 Re8 10. Qh4 Nd4 11. Bd1 Nxf3+ 12. Bxf3 Qd8 13. g4 e6 14. Be3 Rb8 15. Rab1 b6 16. Nd1 d5 17. g5 dxe4 18. dxe4 Nd7 19. Nf2 Nf8 20. e5 Bb7 21. Rbd1 Qc7 22. Bxb7 Qxb7 23. Ng4 Red8 24. Rde1 Rbc8 25. Qg3 Rc7 26. h4 Qa6 27. a3 Qc4 28. Qf2 Qb5 29. Bc1 c4 30. Kh2 Nd7 31. Rg1 Nc5 32. h5 Qc6 33. Nf6+ Bxf6 34. gxf6 Qe8 35. Re3 Qf8 36. Qe2 Qh6 37. Reg3 Rd4 38. f5 Rh4+ 39. Rh3 Rxh3+ 40. Kxh3 Qf8 41. hxg6 exf5 42. gxh7+ 1-0

[Event "Sao Bento do Sul op 05"]
[Site "Sao Bento do Sul"]
[Date "2021.05.09"]
[Round "5"]
[White "Das Chagas, David Ferreira"]
[Black "Ribeiro Carrico, Victor Hugo"]
[Result "1-0"]
[ECO "C25"]
[WhiteElo "1986"]
[BlackElo "1753"]
[PlyCount "85"]
[EventDate "2021.05.07"]
[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 e5 2. Nc3 Bc5 3. f4 Bxg1 4. Rxg1 Qh4+ 5. g3 Qxh2 6. Rg2 Qh1 7. d4 d6 8. dxe5 Bh3 9. Rf2 dxe5 10. Nb5 Qxe4+ 11. Re2 Qb4+ 12. c3 Qxb5 13. Rxe5+ Qxe5+ 14. fxe5 Be6 15. Bg2 c6 16. Bg5 Nd7 17. Qd6 h6 18. Bf4 Ne7 19. Be4 Nf5 20. Bxf5 Bxf5 21. 0-0-0 Be6 22. b3 0-0-0 23. Qa3 Kc7 24. Qa5+ Nb6 25. Rd6 Ra8 26. c4 Kc8 27. Be3 Nd7 28. Kb2 Kb8 29. a3 Re8 30. Qc3 Kc7 31. Qa5+ Kb8 32. Qc3 Kc7 33. b4 Bg4 34. Qd4 h5 35. e6 Bxe6 36. Bf4 Kc8 37. Qxg7 Bxc4 38. Qg5 a5 39. bxa5 Bd5 40. Rxd5 cxd5 41. Qxd5 Re6 42. Qxh5 Rea6 43. Qh8+ 1-0

[Event "Sao Bento do Sul op 05"]
[Site "Sao Bento do Sul"]
[Date "2021.05.09"]
[Round "6"]
[White "Kim, Thiago"]
[Black "Das Chagas, David Ferreira"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "1828"]
[BlackElo "1986"]
[PlyCount "151"]
[EventDate "2021.05.07"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 0-0 10. 0-0-0 a5 11. a4 Na6 12. g4 Qb8 13. g5 Nh5 14. Kb1 Nc7 15. Bb5 Rd8 16. Qf2 Nf4 17. Bxf4 exf4 18. h4 Nxb5 19. Nxb5 d5 20. exd5 Bxd5 21. N3d4 Bc5 22. h5 Qe5 23. g6 fxg6 24. hxg6 hxg6 25. Rhe1 Qf6 26. Qf1 Rac8 27. c3 Bb6 28. Qh3 Rc4 29. b3 Rcc8 30. Kb2 Bxd4 31. Rxd4 Bc6 32. Nd6 Bd7 33. Qh2 Rc7 34. Rh1 Kf8 35. Rxf4 Bf5 36. Qh8+ Ke7 37. Re1+ Kxd6 38. Qxd8+ Qxd8 39. Rd4+ Kc6 40. Rxd8 Rf7 41. f4 Bd7 42. Re4 Kc7 43. Ra8 Kb6 44. b4 axb4 45. cxb4 Bf5 46. Rd4 Re7 47. Rad8 Re2+ 48. Rd2 Re4 49. R8d4 Re1 50. Rh2 Rb1+ 51. Ka2 Re1 52. Rf2 Kc6 53. Rdd2 Re4 54. b5+ Kb6 55. Kb3 Ka5 56. Rd1 Rb4+ 57. Kc3 Rxa4 58. Rd5 Kb6 59. Re5 Ra3+ 60. Kb4 Rd3 61. Kc4 Ra3 62. Kb4 Rd3 63. Rc2 Rd4+ 64. Rc4 Rd7 65. Kc3 Rd3+ 66. Kb4 Rd7 67. Kc3 Rd3+ 68. Kb4 Rd1 69. Kc3 Rc1+ 70. Kd4 Rb1 71. Rc3 Rb4+ 72. Rc4 Rb3 73. Rc3 Rb4+ 74. Rc4 Rxb5 75. Rxb5+ Kxb5 76. Rc7 1/2-1/2

[Event "Sao Bento do Sul op 05"]
[Site "Sao Bento do Sul"]
[Date "2021.05.08"]
[Round "3"]
[White "Das Chagas, David Ferreira"]
[Black "Mafra, Kaiser Luiz"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1986"]
[BlackElo "2140"]
[PlyCount "84"]
[EventDate "2021.05.07"]
[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 c5 2. Nc3 g6 3. h4 h5 4. f4 Bg7 5. Nf3 Nc6 6. Be2 e6 7. d3 Nge7 8. Be3 Nd4 9. e5 Nef5 10. Bf2 d6 11. Qd2 Nxf3+ 12. Bxf3 dxe5 13. Bxc5 Qc7 14. Ne4 exf4 15. 0-0-0 Bd7 16. Qb4 Rc8 17. c3 a5 18. Qa3 b5 19. d4 Bc6 20. Rhe1 Bxe4 21. Bxe4 Ne3 22. Qb3 Nxd1 23. Qxb5+ Qd7 24. Qxd7+ Kxd7 25. Kxd1 Rb8 26. Kc1 f5 27. Bc2 Rbe8 28. Ba4+ Kc7 29. d5 e5 30. d6+ Kb7 31. d7 Rd8 32. Bd6 e4 33. Bxf4 Bh6 34. Bxh6 Rxh6 35. Rd1 g5 36. Rd5 gxh4 37. Rxf5 Rg6 38. Rxh5 Rxg2 39. Rxh4 e3 40. Re4 e2 41. b3 Rh8 42. Re8 Rh1+ 0-1

[Event "Sao Bento do Sul op 05"]
[Site "Sao Bento do Sul"]
[Date "2021.05.08"]
[Round "4"]
[White "Oliveira, Francisco Evandro S"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "A25"]
[WhiteElo "1017"]
[BlackElo "1986"]
[PlyCount "48"]
[EventDate "2021.05.07"]
[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 e5 2. g3 f5 3. e3 Nf6 4. Bg2 Nc6 5. Ne2 Be7 6. Nbc3 d6 7. 0-0 h5 8. f3 h4 9. Qe1 Be6 10. d3 hxg3 11. Qxg3 Qd7 12. f4 0-0-0 13. h4 Ng4 14. Bf3 Bxh4 15. Qg2 g5 16. Bxg4 fxg4 17. Ng3 gxf4 18. exf4 Nd4 19. fxe5 Nf3+ 20. Kf2 dxe5 21. Ke2 Qxd3+ 22. Kf2 Bxc4 23. Be3 Qc2+ 24. Nce2 Qxe2# 0-1

[Event "Sao Bento do Sul op 05"]
[Site "Sao Bento do Sul"]
[Date "2021.05.08"]
[Round "2"]
[White "Pavao, Alice Lara Biasi"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "1045"]
[BlackElo "1986"]
[PlyCount "38"]
[EventDate "2021.05.07"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 Nc6 2. g3 e5 3. d3 f5 4. Nbd2 Nf6 5. e4 Bc5 6. Bg2 d6 7. 0-0 0-0 8. a4 a5 9. Ne1 Ba7 10. Nc4 Be6 11. b3 Ng4 12. h3 Nxf2 13. Rxf2 Bxc4 14. bxc4 fxe4 15. Bxe4 Rxf2 16. Kh1 Rf1+ 17. Kh2 Qf6 18. h4 Qf2+ 19. Kh3 Rxe1 0-1

[Event "Sao Bento do Sul op 4th"]
[Site "Sao Bento do Sul"]
[Date "2020.11.01"]
[Round "5"]
[White "Das Chagas, David Ferreira"]
[Black "Almeida Junior, Alvaro Alves de"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1978"]
[BlackElo "2174"]
[PlyCount "74"]
[EventDate "2020.10.31"]
[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 c5 2. Nc3 e6 3. f4 g6 4. Nf3 Bg7 5. Be2 Ne7 6. 0-0 0-0 7. Qe1 Nbc6 8. d3 a6 9. Ng5 h6 10. Nf3 b5 11. Qh4 f5 12. g4 Nd4 13. Bd1 Bb7 14. gxf5 exf5 15. e5 d6 16. Nxd4 cxd4 17. exd6 Qxd6 18. Ne2 Qd5 19. Kf2 Bf6 20. Qg3 Kg7 21. Rg1 Rae8 22. Bd2 Qf7 23. a4 Nd5 24. axb5 axb5 25. Ra7 Re7 26. h4 h5 27. Nc1 Ne3 28. Bb4 Ng4+ 29. Bxg4 hxg4 30. Bxe7 Qxe7 31. Rh1 Qc7 32. Qg2 Rf7 33. Rxb7 Qxb7 34. Qxb7 Rxb7 35. Rh2 Re7 36. Nb3 Re3 37. Nc5 g3+ 0-1

[Event "Sao Bento do Sul op 4th"]
[Site "Sao Bento do Sul"]
[Date "2020.11.01"]
[Round "4"]
[White "De Oliveira, Gustavo Alfredo Bue"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "2189"]
[BlackElo "1978"]
[PlyCount "102"]
[EventDate "2020.10.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 c5 2. b3 Nc6 3. Bb2 Nf6 4. e3 e6 5. Bb5 Qc7 6. 0-0 a6 7. Bxc6 Qxc6 8. d3 b6 9. Ne5 Qc7 10. f4 Bb7 11. Nd2 Be7 12. Qe2 Rg8 13. e4 d6 14. Nxf7 Kxf7 15. e5 Raf8 16. exf6 gxf6 17. Qh5+ Kg7 18. Nf3 Kh8 19. Rae1 e5 20. Rf2 Rg7 21. Ree2 exf4 22. Nh4 d5 23. Nf5 Rgf7 24. Qh6 Kg8 25. Rxf4 Bd6 26. Rg4+ Kh8 27. Nxd6 Qxd6 28. Rf2 d4 29. Rgf4 Qe5 30. h3 Rg8 31. Kh2 Rg6 32. Qh4 Rfg7 33. g4 Qe1 34. Qh5 Qh1+ 35. Kg3 Qg1+ 36. Kh4 Bc8 37. Re2 Bd7 38. Ree4 Rg5 39. Qh6 R5g6 40. Qh5 Bc6 41. Re6 Bd7 42. Ree4 f5 43. Rxf5 Bxf5 44. Re8+ Rg8 45. Rxg8+ Kxg8 46. Qxf5 Qe1+ 47. Kh5 Qe8 48. Kh4 Qe1+ 49. Kh5 Qe8 50. Kh4 Rh6+ 51. Kg5 Qe3+ 0-1

[Event "Sao Bento do Sul op 4th"]
[Site "Sao Bento do Sul"]
[Date "2020.10.31"]
[Round "1"]
[White "Das Chagas, David Ferreira"]
[Black "Britto, Sara Ohana Felix De"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1978"]
[BlackElo "1504"]
[PlyCount "99"]
[EventDate "2020.10.31"]
[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 c5 2. Nc3 d6 3. f4 Nf6 4. Nf3 e6 5. Be2 Bd7 6. 0-0 Be7 7. Qe1 Nc6 8. d3 Nd4 9. Bd1 Qb6 10. Kh1 Bc6 11. Rb1 0-0 12. Ne2 Nxf3 13. gxf3 Qd8 14. Rg1 Nh5 15. Ng3 Bh4 16. Qf1 Bxg3 17. hxg3 f5 18. Qh3 Rf6 19. g4 fxg4 20. Rxg4 Rh6 21. Kg1 Kh8 22. f5 Nf4 23. Qg3 e5 24. Bxf4 exf4 25. Qxf4 Qa5 26. c3 Qxa2 27. Bc2 Ba4 28. Qc1 Bxc2 29. Qxc2 Qf7 30. Qg2 Qa2 31. Re1 Qf7 32. Kf2 Re8 33. Rg1 Rg8 34. Qg3 Qf6 35. Rg2 b5 36. Rh2 Rxh2+ 37. Qxh2 b4 38. Rg6 Qe5 39. f4 Qe8 40. Rxd6 bxc3 41. bxc3 Qb5 42. Ke3 a5 43. Qa2 a4 44. c4 Qa5 45. e5 a3 46. e6 Re8 47. f6 gxf6 48. Qa1 Kg7 49. Rd7+ Kg8 50. Qg1+ 1-0

[Event "Sao Bento do Sul op 4th"]
[Site "Sao Bento do Sul"]
[Date "2020.10.31"]
[Round "3"]
[White "Das Chagas, David Ferreira"]
[Black "Da Costa, Eduardo Mello"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "1978"]
[BlackElo "1288"]
[PlyCount "65"]
[EventDate "2020.10.31"]
[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 e5 2. Nf3 Nf6 3. Bc4 Nxe4 4. Nc3 Nf6 5. Nxe5 d5 6. Bb3 Bd6 7. d4 c6 8. 0-0 0-0 9. Bg5 Nbd7 10. Re1 Qc7 11. Nxd7 Nxd7 12. h3 h6 13. Bd2 Nf6 14. Qf3 Kh7 15. g4 Rh8 16. Re2 Bd7 17. g5 hxg5 18. Bxg5 Kg8 19. Bxf6 gxf6 20. Qxf6 Rxh3 21. Kg2 Rh2+ 22. Kf3 Rh3+ 23. Kg2 Rh2+ 24. Kg1 Bf4 25. Bxd5 Bh3 26. Rae1 cxd5 27. Re8+ Kh7 28. Qh8+ Kg6 29. Qg8+ Kh5 30. Qh7+ Bh6 31. R8e5+ f5 32. Qxc7 Rg8+ 33. Kxh2 1-0

[Event "Sao Bento do Sul op 4th"]
[Site "Sao Bento do Sul"]
[Date "2020.10.31"]
[Round "2"]
[White "Mileski, Lucas de Souza"]
[Black "Das Chagas, David Ferreira"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1751"]
[BlackElo "1978"]
[PlyCount "28"]
[EventDate "2020.10.31"]
[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. Nf3 e6 3. Bf4 d5 4. e3 Bd6 5. Bxd6 Qxd6 6. b3 Nbd7 7. Bd3 0-0 8. 0-0 e5 9. dxe5 Nxe5 10. Nxe5 Qxe5 11. Nd2 Bg4 12. Be2 Bxe2 13. Qxe2 c6 14. c4 Rad8 1/2-1/2

[Event "Parana-ch"]
[Site "Curitiba"]
[Date "2018.11.25"]
[Round "6"]
[White "Cruz, William Ferreira Da"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2255"]
[BlackElo "1981"]
[PlyCount "118"]
[EventDate "2018.11.22"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 Nc6 3. d4 d5 4. Bg2 g6 5. c4 Bg7 6. 0-0 0-0 7. Nbd2 Re8 8. cxd5 Nxd5 9. Nc4 Nb6 10. Nxb6 axb6 11. d5 Nb4 12. Qb3 Na6 13. Rd1 Nc5 14. Qe3 Bd7 15. Nd4 Qc8 16. Bd2 e6 17. d6 cxd6 18. Rac1 Rxa2 19. b4 Bxd4 20. Qxd4 Nb3 21. Qxb6 Qd8 22. Qxd8 Rxd8 23. Bg5 Nxc1 24. Bxd8 Nxe2+ 25. Kh1 d5 26. Bf6 Rc2 27. Bf1 Nc3 28. Ra1 Ne4 29. Bd4 Nd6 30. Be5 Ne4 31. f3 f6 32. Bd4 e5 33. Bb6 Nd2 34. Bg2 Rb2 35. Bc5 Rb1+ 36. Rxb1 Nxb1 37. Kg1 Nc3 38. Kf2 d4 39. Bf1 Kf7 40. g4 Bb5 41. Bg2 Nd1+ 42. Ke1 Ne3 43. Kf2 Nxg2 44. Kxg2 d3 45. Be3 Ke6 46. Kf2 f5 47. gxf5+ gxf5 48. f4 e4 49. Ke1 Kd5 50. Kd2 Kc4 51. Bc5 Kb3 52. h3 Be8 53. h4 Bh5 54. Be7 b5 55. Bc5 Be2 56. Kc1 Kc3 57. Be3 Kxb4 58. Kb2 Kc4 59. Kc1 Kc3 0-1

[Event "Parana-ch"]
[Site "Curitiba"]
[Date "2018.11.25"]
[Round "7"]
[White "Das Chagas, David Ferreira"]
[Black "Gonzalez, Bolivar Ribeiro"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1981"]
[BlackElo "2196"]
[PlyCount "124"]
[EventDate "2018.11.22"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. f4 Bg7 6. Nf3 Nf6 7. 0-0 Ng4 8. Qe1 c4 9. b3 cxb3 10. axb3 0-0 11. h3 Nf6 12. d3 Nd7 13. g4 f5 14. gxf5 gxf5 15. e5 Qe8 16. Qh4 Nc5 17. Ba3 Ne6 18. Ne2 c5 19. Kf2 b6 20. Rg1 Rf7 21. Ng5 Nf8 22. Qh5 e6 23. Qxf7+ Qxf7 24. Nxf7 Kxf7 25. Bc1 Bd7 26. Be3 a5 27. d4 cxd4 28. Bxd4 b5 29. c3 Ng6 30. Ke3 Bh6 31. Rgd1 Be8 32. Ra2 Bc6 33. c4 bxc4 34. bxc4 a4 35. Bc3 Rc8 36. Bd4 Be8 37. Rc1 Bc6 38. Ba1 Ra8 39. Rf1 Ra5 40. Kd4 Bf8 41. Bc3 Ra8 42. Ke3 Bh6 43. Rb1 Rc8 44. Rb4 Bf8 45. Rbxa4 Bxa4 46. Rxa4 Bh6 47. Kf3 Rd8 48. Ra7+ Kg8 49. Ke3 Bf8 50. Rc7 Rd1 51. Rc6 Rh1 52. Rxe6 Rxh3+ 53. Kd4 Rh2 54. Kd3 Rh3+ 55. Kd4 Rh2 56. Kd3 Rf2 57. Ke3 Rxe2+ 58. Kf3 Rc2 59. Bd4 Rxc4 60. Be3 Bh6 61. Rf6 Rc3 62. Kf2 Nxe5 0-1

[Event "Parana-ch"]
[Site "Curitiba"]
[Date "2018.11.24"]
[Round "5"]
[White "Das Chagas, David Ferreira"]
[Black "Cristianini Junior, Rogerio C"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "1981"]
[PlyCount "61"]
[EventDate "2018.11.22"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. Nf3 Be7 5. e4 cxd4 6. Nxd4 Nc6 7. Nc2 0-0 8. Be3 d5 9. exd5 exd5 10. cxd5 Nb4 11. Bc4 a6 12. 0-0 b5 13. Nxb4 Bxb4 14. Bb3 Bb7 15. Bg5 Bxc3 16. bxc3 Qd6 17. Bxf6 Qxf6 18. Qd3 Rfd8 19. a4 bxa4 20. Rxa4 Rd6 21. c4 Rc8 22. Qe3 Rd7 23. Re1 g6 24. f4 Qd8 25. f5 gxf5 26. Bc2 Rd6 27. Bxf5 Rc7 28. c5 Rxd5 29. Rg4+ Kh8 30. Qh6 f6 31. Re8+ 1-0

[Event "Parana-ch"]
[Site "Curitiba"]
[Date "2018.11.24"]
[Round "4"]
[White "Jaruga, Rodolfo Brandao De"]
[Black "Das Chagas, David Ferreira"]
[Result "1/2-1/2"]
[ECO "B21"]
[WhiteElo "1619"]
[BlackElo "1981"]
[PlyCount "92"]
[EventDate "2018.11.22"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. e4 c5 2. f4 d5 3. exd5 Qxd5 4. Nc3 Qd8 5. Nf3 Nf6 6. Bb5+ Nbd7 7. 0-0 e6 8. a4 Be7 9. a5 0-0 10. d3 Qc7 11. Bc4 a6 12. Nd2 b5 13. axb6 Nxb6 14. Bb3 Nfd5 15. Nde4 f5 16. Nxd5 exd5 17. Ng5 h6 18. Nf3 Bf6 19. c3 Bb7 20. d4 cxd4 21. Nxd4 Bc8 22. Nf3 Qc5+ 23. Nd4 Nc4 24. Kh1 Rb8 25. Nf3 Re8 26. Rb1 Rd8 27. Re1 Bb7 28. Nd4 Bxd4 29. cxd4 Qb6 30. Bc2 g6 31. Re7 Re8 32. Re1 Qxd4 33. b3 Qxd1 34. Rxd1 Ne3 35. Bxe3 Rxe3 36. Kg1 Rbe8 37. Bd3 Kg7 38. Kf2 Kf6 39. Ra1 R8e6 40. b4 g5 41. fxg5+ hxg5 42. Bxa6 Bxa6 43. Rxa6 Re2+ 44. Kf1 Rxa6 45. Kxe2 Ra2+ 46. Rd2 Ra4 1/2-1/2

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2018.08.05"]
[Round "9"]
[White "Das Chagas, David Ferreira"]
[Black "Dias, Anderson Tatsch"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1958"]
[BlackElo "2200"]
[PlyCount "117"]
[EventDate "2018.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. f4 a6 4. Nf3 b5 5. Be2 Bb7 6. d3 b4 7. Nb1 d5 8. e5 g6 9. 0-0 Bg7 10. Qe1 Nd7 11. Be3 Ne7 12. Nbd2 Qc7 13. c3 bxc3 14. bxc3 0-0 15. g4 d4 16. cxd4 Nd5 17. Nc4 Nxe3 18. Nxe3 cxd4 19. Rc1 Qb8 20. Nc4 Bd5 21. g5 Rd8 22. Qa5 Qb5 23. Nxd4 Qxa5 24. Nxa5 Bxa2 25. Bf3 Bd5 26. Bxd5 exd5 27. Ndc6 Re8 28. d4 Nb8 29. Nb4 Rd8 30. Nb7 Rd7 31. Rc8+ Bf8 32. Nc5 Rda7 33. Nxd5 Nc6 34. Rxc6 Kg7 35. f5 Rd8 36. f6+ Kg8 37. Ne7+ Bxe7 38. fxe7 Rxe7 39. Rd6 Rb8 40. Nd7 Ra8 41. Nf6+ Kg7 42. Ra1 a5 43. Rxa5 Rb8 44. Kf2 Rc7 45. Rc5 Ra7 46. Ke3 h6 47. gxh6+ Kxh6 48. Rc3 Ra1 49. Kf4 g5+ 50. Kg4 Kg7 51. Kxg5 Rf1 52. Rh3 Rg1+ 53. Rg3 Rf1 54. Kh5+ Kh8 55. Ng4 Rf5+ 56. Kh4 Rf4 57. Kg5 Rf1 58. Rh6+ Kg8 59. Nf6+ 1-0

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2018.08.04"]
[Round "8"]
[White "Boabaid, Jorge Alberto Duard"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "B98"]
[WhiteElo "1819"]
[BlackElo "1958"]
[PlyCount "60"]
[EventDate "2018.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. Bd3 Nbd7 10. Qg3 b5 11. 0-0-0 b4 12. Na4 Qa5 13. b3 h6 14. Nc6 Qc7 15. Nxe7 Kxe7 16. e5 dxe5 17. fxe5 Qxe5 18. Bf4 Qa1+ 19. Kd2 Qd4 20. Be3 Ne4+ 21. Ke1 Nxg3 22. Bxd4 Nxh1 23. Be4 Rb8 24. g4 Bb7 25. Bxb7 Rxb7 26. Ke2 Rc8 27. c4 bxc3 28. Bxc3 Nc5 29. Nxc5 Rxc5 30. Rc1 Ke8 0-1

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2018.08.04"]
[Round "7"]
[White "Das Chagas, David Ferreira"]
[Black "Aranha Filho, Alvaro Zimmermann"]
[Result "0-1"]
[ECO "B02"]
[WhiteElo "1958"]
[BlackElo "2284"]
[PlyCount "44"]
[EventDate "2018.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nc3 Nxd5 4. Bc4 Nc6 5. Bb3 Nf6 6. d3 Bf5 7. Be3 e6 8. g4 Bg6 9. Qe2 h5 10. 0-0-0 hxg4 11. Bxe6 fxe6 12. Bb6 axb6 13. Qxe6+ Ne7 14. Re1 Bf7 15. Qxg4 Qd7 16. Qf4 Bd5 17. Nxd5 Qxd5 18. Ne2 0-0-0 19. Nc3 Qc6 20. Qg4+ Kb8 21. h4 Ned5 22. Qg5 Bb4 0-1

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2018.08.03"]
[Round "5"]
[White "Rosa, Luiz Felipe Lopes"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "1679"]
[BlackElo "1958"]
[PlyCount "64"]
[EventDate "2018.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 Be7 3. e4 b6 4. Bd3 Bb7 5. 0-0 c5 6. c3 d6 7. Bf4 Nf6 8. Nbd2 0-0 9. e5 dxe5 10. Bxe5 Nc6 11. Qc2 g6 12. Bxf6 Bxf6 13. dxc5 bxc5 14. Ne4 Be7 15. Rad1 Qc7 16. Qd2 Kg7 17. Qe3 Ne5 18. Nxe5 Qxe5 19. Rfe1 Qc7 20. Bb5 Rad8 21. b3 h6 22. h3 Qe5 23. Rd3 Rxd3 24. Qxd3 Rd8 25. Qe3 Bxe4 26. Qxe4 Qxc3 27. Rf1 Bd6 28. Rd1 Bh2+ 29. Kxh2 Rxd1 30. Qb7 Qe5+ 31. g3 Qe1 32. Qg2 Rd2 0-1

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2018.08.03"]
[Round "6"]
[White "Tonette, Janaine Gusmao"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "D03"]
[WhiteElo "1540"]
[BlackElo "1958"]
[PlyCount "72"]
[EventDate "2018.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Bg5 Ne4 4. Bf4 e6 5. e3 Nd7 6. Bd3 g5 7. Be5 Nxe5 8. Nxe5 h5 9. Nd2 Nxd2 10. Qxd2 Bg7 11. c4 dxc4 12. Nxc4 Qd5 13. Rg1 c5 14. dxc5 Qxc5 15. Rc1 0-0 16. Ke2 Qe7 17. Rgd1 b6 18. Nd6 Bb7 19. Nxb7 Qxb7 20. Kf1 Rfd8 21. Qc2 Rac8 22. Qe2 Rxc1 23. Rxc1 g4 24. b3 Qe7 25. Bb1 Qd6 26. g3 Qd5 27. Kg1 Kf8 28. e4 Qd6 29. h3 Bd4 30. hxg4 Qxg3+ 31. Kf1 Qh3+ 32. Kg1 hxg4 33. Qf1 Qh6 34. Kg2 Qf4 35. Rd1 Qf3+ 36. Kh2 Kg7 0-1

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2018.08.02"]
[Round "3"]
[White "Das Chagas, David Ferreira"]
[Black "Bartmeyer, Maria Veronica"]
[Result "1-0"]
[ECO "A51"]
[WhiteElo "1958"]
[BlackElo "1581"]
[PlyCount "53"]
[EventDate "2018.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. d5 Bc5 4. Nc3 d6 5. h3 Bf5 6. g4 Bg6 7. Bg2 h6 8. e4 0-0 9. Nge2 Nbd7 10. Ng3 a6 11. Qe2 Rb8 12. h4 Bd4 13. Nf5 Re8 14. a4 Nb6 15. Nd1 Qd7 16. a5 Nxc4 17. Qxc4 Nxg4 18. Nxd4 exd4 19. f3 Ne5 20. Qxd4 Bh5 21. 0-0 Qe7 22. Qf2 Ng6 23. Qg3 Kh8 24. Bd2 Nxh4 25. Bc3 Bg6 26. Kf2 Bh7 27. Qxg7# 1-0

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2018.08.02"]
[Round "4"]
[White "Das Chagas, David Ferreira"]
[Black "Rodrigues, Edgar"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "1958"]
[BlackElo "2301"]
[PlyCount "60"]
[EventDate "2018.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 Qb6 5. Nc3 h5 6. Na4 Qa5+ 7. c3 e6 8. b4 Qc7 9. Bf4 Nd7 10. Nf3 Ne7 11. Be2 Ng6 12. Bg3 Be7 13. Ng5 Qd8 14. f4 f6 15. exf6 gxf6 16. Nh3 Qc7 17. Bxh5 0-0-0 18. Bxg6 Bxg6 19. Bf2 Bd6 20. Qd2 Bf5 21. g3 Bg4 22. Be3 Rdg8 23. Kf2 Nf8 24. Nc5 Ng6 25. Nd3 Nxh4 26. Ng1 Nf5 27. Nf3 Rxh1 28. Rxh1 Bxf3 29. Kxf3 Rxg3+ 30. Kf2 Qg7 0-1

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2018.08.01"]
[Round "1"]
[White "Das Chagas, David Ferreira"]
[Black "Scardini, Leonardo"]
[Result "1-0"]
[ECO "C56"]
[WhiteElo "1958"]
[BlackElo "1309"]
[PlyCount "41"]
[EventDate "2018.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. d4 exd4 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. fxg7 Rg8 10. Bg5 Be7 11. Bxe7 Qxe7 12. Nxd4 Nxd4 13. Qxd4 b6 14. Nc3 c6 15. Ne4 f5 16. Nd6+ Kd8 17. Nxf5+ Ke8 18. Nxe7 Kxe7 19. Rxe6+ Kxe6 20. Re1+ Kf7 21. Qd7+ 1-0

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2018.08.01"]
[Round "2"]
[White "Rodi, Luis Ernesto"]
[Black "Das Chagas, David Ferreira"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2308"]
[BlackElo "1958"]
[PlyCount "69"]
[EventDate "2018.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Bc4 e6 5. Nf3 d6 6. 0-0 Ne7 7. Nxd4 cxd4 8. Ne2 Nc6 9. c3 dxc3 10. bxc3 Be7 11. d4 0-0 12. f4 d5 13. Bd3 dxe4 14. Bxe4 g6 15. Rb1 Qc7 16. Bd3 Rd8 17. Bd2 b6 18. Ng3 Na5 19. Qe2 Bb7 20. Rbe1 Bd6 21. Be4 Bxe4 22. Nxe4 Nc4 23. Bc1 Ba3 24. Bxa3 Nxa3 25. Rf3 Kg7 26. Rh3 Nc4 27. Qf2 Rh8 28. Qh4 Qd8 29. Qh6+ Kg8 30. g4 Nd6 31. f5 exf5 32. Nxd6 Qxd6 33. gxf5 Qf6 34. Rhe3 Qd8 35. Re8+ 1-0

[Event "Sao Paulo op-B U2050 7th"]
[Site "Sao Paulo"]
[Date "2018.04.01"]
[Round "5"]
[White "Das Chagas, David Ferreira"]
[Black "Sousa, Fabio de Fatima"]
[Result "1-0"]
[ECO "D06"]
[WhiteElo "1972"]
[BlackElo "1756"]
[PlyCount "141"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d5 3. Nc3 a6 4. e3 dxc4 5. Bxc4 b5 6. Qf3 Ra7 7. Bb3 e6 8. h4 Nbd7 9. Nge2 c5 10. 0-0 Be7 11. Rd1 c4 12. Bc2 Bb7 13. Qh3 0-0 14. Nf4 Nb6 15. Nce2 Kh8 16. h5 h6 17. f3 Nh7 18. Bxh7 Kxh7 19. e4 Bg5 20. Be3 Ra8 21. Kh1 Nc8 22. d5 e5 23. Qf5+ Kg8 24. Qxe5 Bf6 25. Qf5 Nd6 26. Qg4 Bc8 27. Qg3 Bxb2 28. Rab1 Bf6 29. Nd4 Bh4 30. Qh2 Bg5 31. Nc6 Qd7 32. Bc5 Re8 33. Nh3 Nb7 34. Bd4 Bh4 35. Qf4 Bd8 36. Qg3 f5 37. Be5 Qf7 38. Nf4 Nc5 39. Nxd8 Rxd8 40. Bd4 Nb7 41. e5 Qe7 42. d6 Qg5 43. Qxg5 hxg5 44. Nd5 Bd7 45. Bb6 Rf8 46. Nc7 Rac8 47. e6 Bxe6 48. Nxe6 Rf6 49. d7 Rb8 50. Bc7 Ra8 51. d8Q+ Nxd8 52. Rxd8+ Rxd8 53. Nxd8 Rf8 54. Ba5 Kh7 55. Ne6 Rc8 56. g4 fxg4 57. fxg4 c3 58. Nxg5+ Kg8 59. Rc1 c2 60. Kg2 Rc4 61. Kg3 Kf8 62. a3 Ke7 63. Nf3 Kf6 64. Ne1 Ra4 65. Bd8+ Ke6 66. Nxc2 a5 67. Bb6 Kd5 68. Rd1+ Kc6 69. Bd4 Rc4 70. Ne3 Ra4 71. Rd3 1-0

[Event "Sao Paulo op-B U2050 7th"]
[Site "Sao Paulo"]
[Date "2018.04.01"]
[Round "6"]
[White "Ramillo, Vitoria Matheus"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "B82"]
[WhiteElo "1860"]
[BlackElo "1972"]
[PlyCount "42"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e6 7. Bd3 Be7 8. Qe2 Nc6 9. Nxc6 bxc6 10. 0-0 Nd7 11. Be3 d5 12. Qg4 Nf6 13. Qxg7 Rg8 14. Qh6 d4 15. e5 Ng4 16. Qxh7 Rf8 17. Be4 Nxe3 18. Bxc6+ Bd7 19. Qe4 Rc8 20. Bxd7+ Qxd7 21. Nd5 exd5 0-1

[Event "Sao Paulo op-B U2050 7th"]
[Site "Sao Paulo"]
[Date "2018.03.31"]
[Round "4"]
[White "Chi Haur, Wu"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "D35"]
[WhiteElo "1649"]
[BlackElo "1972"]
[PlyCount "102"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 e6 2. c4 Be7 3. Nc3 d5 4. cxd5 exd5 5. Qc2 Nf6 6. Bg5 0-0 7. e3 h6 8. h4 c5 9. dxc5 Nc6 10. a3 a5 11. 0-0-0 Be6 12. Nge2 Bxc5 13. Bxf6 Qxf6 14. Nxd5 Bxd5 15. Rxd5 b6 16. Qf5 Qe7 17. Qd7 Bxa3 18. Qxe7 Bxe7 19. Nf4 Nb4 20. Rd7 Rac8+ 21. Kb1 Rfd8 22. Rxd8+ Rxd8 23. Be2 Rd2 24. Rd1 Rxd1+ 25. Bxd1 Bxh4 26. g3 Bg5 27. Ne2 Bf6 28. Bc2 Kf8 29. Be4 Ke7 30. Nf4 g6 31. Nd5+ Nxd5 32. Bxd5 h5 33. Kc2 Be5 34. b3 Bd6 35. Kd3 f5 36. f4 Kf6 37. e4 fxe4+ 38. Bxe4 g5 39. Ke3 Bc5+ 40. Kf3 g4+ 41. Kg2 Be3 42. f5 Bd4 43. Bd3 Ke5 44. Kf1 Bc3 45. Kg2 Be1 46. Bc2 b5 47. Bd3 a4 48. bxa4 bxa4 49. Bb1 a3 50. Kf1 Bd2 51. Ba2 Kxf5 0-1

[Event "Sao Paulo op-B U2050 7th"]
[Site "Sao Paulo"]
[Date "2018.03.31"]
[Round "3"]
[White "Das Chagas, David Ferreira"]
[Black "Nobre, Jailson Altair Barb"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1972"]
[BlackElo "1719"]
[PlyCount "56"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. f4 d5 4. d3 dxe4 5. Nxe4 Nf6 6. Nf2 Bd6 7. Nf3 Nc6 8. Be2 0-0 9. 0-0 Qc7 10. g3 b6 11. Ne4 Nxe4 12. dxe4 Rd8 13. Bd2 Bb7 14. c3 c4 15. Qe1 Bc5+ 16. Kg2 Na5 17. Bd1 Rd7 18. b4 cxb3 19. axb3 Bf8 20. Bc2 Rad8 21. c4 Nc6 22. Bc3 a5 23. Ne5 Nxe5 24. Bxe5 Bd6 25. Bc3 Bb4 26. Bxb4 axb4 27. Qxb4 Rd2+ 28. Rf2 Rxc2 0-1

[Event "Sao Paulo op-B U2050 7th"]
[Site "Sao Paulo"]
[Date "2018.03.30"]
[Round "1"]
[White "Das Chagas, David Ferreira"]
[Black "Dos Santos Junior, Gabriel Ribeiro"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1972"]
[BlackElo "1749"]
[PlyCount "96"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. 0-0 Nf6 5. d3 0-0 6. Re1 d6 7. Nbd2 Na5 8. Nf1 Nxc4 9. dxc4 Bg4 10. h3 Bh5 11. g4 Bg6 12. Ng3 Qd7 13. Nh4 a6 14. Nhf5 Bd8 15. a4 Qc6 16. Qd3 Nd7 17. b3 Nc5 18. Qf3 Ne6 19. Be3 Ng5 20. Qg2 h6 21. Kh1 Bf6 22. Rg1 b5 23. h4 Ne6 24. g5 hxg5 25. hxg5 Nxg5 26. Bxg5 Bxg5 27. Nh5 Bxf5 28. exf5 Qxg2+ 29. Rxg2 f6 30. axb5 axb5 31. Rxa8 Rxa8 32. cxb5 Kf7 33. c4 Ra1+ 34. Rg1 Ra2 35. Kg2 Rb2 36. Ra1 Be3 37. Kf3 Bxf2 38. b4 Bb6 39. c5 dxc5 40. Rg1 Rb3+ 41. Ke2 cxb4 42. Rxg7+ Kf8 43. Rg6 Re3+ 44. Kd2 b3 45. Rxf6+ Ke7 46. Rg6 b2 47. Rg7+ Kf8 48. Rg1 Re2+ 0-1

[Event "Sao Paulo op-B U2050 7th"]
[Site "Sao Paulo"]
[Date "2018.03.30"]
[Round "2"]
[White "Ferreira, Antonia Kaly Sousa"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "D60"]
[WhiteElo "1705"]
[BlackElo "1972"]
[PlyCount "104"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Be7 4. Bg5 d5 5. e3 c6 6. Be2 0-0 7. 0-0 Nbd7 8. Nc3 a6 9. cxd5 exd5 10. h3 Re8 11. Qc2 Nf8 12. Ne5 Ng6 13. Nxg6 hxg6 14. Kh2 Bf5 15. Qd1 Bd6+ 16. g3 Qb6 17. b3 Nh7 18. Bf4 Ba3 19. g4 Be6 20. Qc2 Qd8 21. Rh1 Rc8 22. Bd3 Be7 23. Rag1 c5 24. Qb2 cxd4 25. exd4 Ng5 26. Kg2 Qa5 27. Rc1 Ba3 28. Qa1 Bxc1 29. Rxc1 Nh7 30. Bd2 Qd8 31. Qb1 Nf8 32. g5 Qd7 33. Rh1 b5 34. h4 Bg4 35. f3 Bf5 36. Kf2 Qa7 37. Ne2 Bxd3 38. Qxd3 Qc7 39. Nc3 b4 40. Nxd5 Qc2 41. Nxb4 Qxd3 42. Nxd3 Rc2 43. Rd1 Rxa2 44. b4 Ne6 45. d5 Nd4 46. Nc1 Ra3 47. Be3 Rexe3 48. Rxd4 Rxf3+ 49. Ke1 Kf8 50. d6 Ke8 51. Kd2 Rf2+ 52. Ke1 Rc2 0-1

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2017.10.01"]
[Round "8"]
[White "Bueno, Alfeu Varela Jr"]
[Black "Das Chagas, David Ferreira"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "2197"]
[BlackElo "1968"]
[PlyCount "42"]
[EventDate "2017.09.28"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "BRA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. f4 Nc6 4. Bb5 Nge7 5. Nf3 g6 6. e5 d5 7. exd6 Nf5 8. Bxc6+ bxc6 9. Ne4 Bg7 10. c3 0-0 11. Nxc5 Nxd6 12. d4 Qb6 13. 0-0 Rd8 14. Qe2 a5 15. Ne5 Nb7 16. Nc4 Qc7 17. Be3 Nxc5 18. dxc5 Ba6 19. a4 Rab8 20. Rf2 Rd5 21. f5 Be5 1/2-1/2

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2017.10.01"]
[Round "7"]
[White "Caldeira, Adriano"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "B99"]
[WhiteElo "2193"]
[BlackElo "1968"]
[PlyCount "37"]
[EventDate "2017.09.28"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "BRA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. 0-0-0 Nbd7 10. g4 b5 11. Bxf6 gxf6 12. f5 Ne5 13. Qh3 Bd7 14. Nce2 Nc6 15. fxe6 fxe6 16. Qh5+ Kd8 17. Nxc6+ Qxc6 18. Bg2 Qc4 19. Rd2 0-1

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2017.09.30"]
[Round "5"]
[White "Da Silva Junior, Marco Aurelio"]
[Black "Das Chagas, David Ferreira"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1695"]
[BlackElo "1968"]
[PlyCount "35"]
[EventDate "2017.09.28"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. Nf3 Nc6 2. d4 d5 3. g3 Nf6 4. Bg2 Bg4 5. Nbd2 e6 6. b3 Bd6 7. Bb2 0-0 8. 0-0 Re8 9. c4 a5 10. Ne5 Bh5 11. Re1 a4 12. Nxc6 bxc6 13. c5 Bf8 14. b4 Nd7 15. f3 e5 16. e4 f6 17. a3 Bf7 18. Qc2 1/2-1/2

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2017.09.30"]
[Round "6"]
[White "Das Chagas, David Ferreira"]
[Black "Staron, Douglas Rentz"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1968"]
[BlackElo "1737"]
[PlyCount "55"]
[EventDate "2017.09.28"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 a6 4. Bxc6 bxc6 5. f4 e6 6. Nf3 d5 7. d3 g6 8. 0-0 Bg7 9. Qe1 Ne7 10. Kh1 Qc7 11. Rb1 0-0 12. Na4 Qa7 13. Be3 d4 14. Bd2 Re8 15. b3 f6 16. Qh4 f5 17. Nb2 Qd7 18. Nc4 Rb8 19. Ng5 h6 20. Nf3 Bb7 21. Nfe5 Bxe5 22. Nxe5 Qc7 23. Qxh6 Nc8 24. Qxg6+ Kf8 25. Qf6+ Kg8 26. Rf3 Re7 27. Rg3+ Rg7 28. Qxe6+ 1-0

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2017.09.29"]
[Round "4"]
[White "Das Chagas, David Ferreira"]
[Black "Kamakawa, Cesar"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1968"]
[BlackElo "1614"]
[PlyCount "43"]
[EventDate "2017.09.28"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Bc4 Nf6 5. d3 Bg4 6. Nge2 e6 7. h3 Bh5 8. g4 Bg6 9. Bd2 Qb6 10. Be3 Qd6 11. f4 c6 12. Qd2 Nbd7 13. 0-0-0 a5 14. a4 Qc7 15. Rde1 Bb4 16. f5 exf5 17. gxf5 Bh5 18. Bf4 Qd8 19. Rhg1 Kf8 20. Rxg7 Kxg7 21. Bh6+ Kg8 22. Qg5+ 1-0

[Event "Penha IRT U2050 1st"]
[Site "Penha"]
[Date "2017.09.24"]
[Round "7.4"]
[White "Da Silva, Joao Carlos Orguim"]
[Black "Das Chagas, David Ferreira"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "1759"]
[BlackElo "1968"]
[PlyCount "69"]
[EventDate "2017.09.22"]
[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. f3 e5 6. Nb3 Be6 7. Nc3 Be7 8. Be3 0-0 9. Qd2 a6 10. a4 Nbd7 11. a5 Rc8 12. Bd3 Nh5 13. 0-0 Kh8 14. g4 Nhf6 15. Rf2 Ne8 16. Rg2 Nc7 17. Rg3 Nf6 18. Rh3 g6 19. Bb6 Rg8 20. Nc1 Qf8 21. N1e2 d5 22. Bxc7 Rxc7 23. exd5 Nxd5 24. Nxd5 Bxd5 25. Bxg6 fxg6 26. Qxd5 Rxc2 27. Ng3 Rxb2 28. Ne4 Rb5 29. Qe6 Bc5+ 30. Kh1 Be3 31. Nd6 Bd4 32. Rc1 Rxa5 33. Nf7+ Kg7 34. Ng5 Qe8 35. Rc7+ 1-0

[Event "Penha IRT U2050 1st"]
[Site "Penha"]
[Date "2017.09.24"]
[Round "6.2"]
[White "Das Chagas, David Ferreira"]
[Black "Pereira, Geanfrancesco"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "1968"]
[BlackElo "1998"]
[PlyCount "42"]
[EventDate "2017.09.22"]
[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. f4 d5 3. e5 g5 4. d4 c5 5. c3 gxf4 6. Nf3 Qb6 7. Na3 cxd4 8. cxd4 Bb4+ 9. Kf2 Nc6 10. Bxf4 Bxa3 11. bxa3 Qb2+ 12. Be2 Qxa3 13. Qc2 Nge7 14. g4 Bd7 15. Rab1 Na5 16. Bc1 Qa4 17. Qd2 b6 18. Rb4 Qc6 19. Qg5 Rg8 20. Qf6 Qc2 21. Ng5 Nac6 0-1

[Event "Penha IRT U2050 1st"]
[Site "Penha"]
[Date "2017.09.23"]
[Round "5.3"]
[White "Das Chagas, David Ferreira"]
[Black "Caetano, Ryan Wesley da Cost"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "1968"]
[BlackElo "1981"]
[PlyCount "94"]
[EventDate "2017.09.22"]
[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 d6 3. f4 Nc6 4. Nf3 Nf6 5. Bb5 Bd7 6. 0-0 a6 7. Be2 b5 8. d3 e6 9. Qe1 b4 10. Nd1 Be7 11. Nf2 h5 12. h3 h4 13. e5 Nd5 14. c4 bxc3 15. bxc3 Qc7 16. Bd1 Nb6 17. exd6 Bxd6 18. Ne4 Be7 19. Neg5 c4 20. d4 Nd5 21. Nxh4 Nxc3 22. Qxc3 Rxh4 23. Nf3 Rh8 24. Kh1 Nb4 25. Be2 Bb5 26. a4 Nd5 27. Qc2 Nb4 28. Qc3 Nd5 29. Qe1 Bd7 30. Ne5 c3 31. Qg3 g6 32. Bd3 Bh4 33. Qg4 Nf6 34. Qf3 Nd5 35. Qg4 Nf6 36. Qf3 Nd5 37. Be4 Bc6 38. Ba3 f5 39. Bd3 Bf6 40. Qg3 Rg8 41. Rfe1 Bxe5 42. Rxe5 Kf7 43. Rae1 Qd7 44. Bc4 Rae8 45. Bxd5 Bxd5 46. Qxc3 Qb7 47. R5e2 Rc8 1/2-1/2

[Event "Penha IRT U2050 1st"]
[Site "Penha"]
[Date "2017.09.23"]
[Round "3.6"]
[White "Das Chagas, David Ferreira"]
[Black "Weise, William Ferreira"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "1968"]
[BlackElo "1812"]
[PlyCount "81"]
[EventDate "2017.09.22"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. f4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 c5 5. 0-0 Nc6 6. d3 Be7 7. Qe1 0-0 8. h3 b5 9. a4 b4 10. Nbd2 a5 11. Kh2 Qc7 12. e4 Ba6 13. e5 Ne8 14. Rf2 g6 15. Nf1 Ng7 16. Ne3 f6 17. Ng4 fxe5 18. fxe5 h5 19. Nf6+ Bxf6 20. exf6 Rxf6 21. Bg5 Rf7 22. Bf4 Qd7 23. Ng5 Rf5 24. h4 e5 25. Be3 d4 26. Bd2 Rxf2 27. Qxf2 Rf8 28. Qe2 Bb7 29. Ne4 Ne6 30. Bh3 Qd5 31. Bg2 Qd7 32. Bh3 Qd5 33. Rf1 Kg7 34. Bxe6 Qxe6 35. Bh6+ Kxh6 36. Rxf8 Qe7 37. Qf1 Nd8 38. Ng5 Kg7 39. Rxd8 Bc6 40. Rc8 Be8 41. Rc7 1-0

[Event "Penha IRT U2050 1st"]
[Site "Penha"]
[Date "2017.09.23"]
[Round "4.4"]
[White "Salvadego, Matheus Henrique De"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "E94"]
[WhiteElo "1537"]
[BlackElo "1968"]
[PlyCount "110"]
[EventDate "2017.09.22"]
[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 d6 3. Nc3 g6 4. e4 Bg7 5. Nf3 Nbd7 6. Be2 0-0 7. 0-0 e5 8. dxe5 dxe5 9. Be3 Qe7 10. Qc2 c6 11. a3 Ng4 12. Bd2 f5 13. h3 Nh6 14. Bg5 Nf6 15. b4 f4 16. c5 Nf7 17. Bc4 h6 18. Bxf6 Qxf6 19. Rad1 Kh7 20. Bxf7 Rxf7 21. Rd6 Qe7 22. Rfd1 g5 23. Rd8 h5 24. Nh2 Rf8 25. Qd3 Be6 26. Rxa8 Rxa8 27. Qd6 Qxd6 28. Rxd6 Re8 29. Nf3 Kg6 30. h4 gxh4 31. Nxh4+ Kf7 32. Nf3 Bf6 33. Ne1 Be7 34. Rd2 a5 35. Nf3 Kf6 36. Rb2 axb4 37. axb4 Ra8 38. Kf1 Ra1+ 39. Ke2 Bc4+ 40. Kd2 Ke6 41. Nd1 Ra3 42. Ne1 Bg5 43. f3 Be7 44. Nf2 Ra1 45. Nd1 Kf6 46. Nc2 Ra8 47. Ke1 Kg6 48. Nc3 Rd8 49. Kf2 Rd3 50. Ne2 Rd2 51. Na3 Bh4+ 52. Kg1 Rxb2 53. Nxc4 Rxe2 54. Nxe5+ Kg7 55. Kh2 Bg3+ 0-1

[Event "Sao Bento do Sul op 08"]
[Site "Sao Bento do Sul"]
[Date "2017.08.20"]
[Round "5"]
[White "Boabaid, Jorge Alberto Duard"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "B99"]
[WhiteElo "1823"]
[BlackElo "1972"]
[PlyCount "90"]
[EventDate "2017.08.18"]
[EventType "swiss"]
[EventRounds "6"]
[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. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. 0-0-0 Nbd7 10. g4 b5 11. Bxf6 Nxf6 12. g5 Nd7 13. Bh3 b4 14. Nce2 Nc5 15. Kb1 Bb7 16. Ng3 d5 17. Qh5 g6 18. Qg4 Nxe4 19. Nxe4 dxe4 20. Rhe1 0-0-0 21. Qe2 h6 22. Bg2 hxg5 23. Bxe4 Bc5 24. Bxb7+ Kxb7 25. Qe4+ Kb6 26. fxg5 Rxh2 27. Rf1 Rd5 28. Rf6 Bxd4 29. Rxd4 Qxc2+ 30. Qxc2 Rh1+ 31. Qc1 Rxc1+ 32. Kxc1 Rxd4 33. Rxf7 Rd5 34. Rf6 Rxg5 35. Rxe6+ Kb5 36. b3 a5 37. Re8 Rg1+ 38. Kb2 Rg2+ 39. Kb1 Rg5 40. Kb2 Kc5 41. Rd8 Re5 42. Rd2 g5 43. a3 g4 44. axb4+ axb4 45. Rd8 Re2+ 0-1

[Event "Sao Bento do Sul op 08"]
[Site "Sao Bento do Sul"]
[Date "2017.08.20"]
[Round "6"]
[White "Das Chagas, David Ferreira"]
[Black "Acosta, Pablo Alejandro"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "1972"]
[BlackElo "1988"]
[PlyCount "78"]
[EventDate "2017.08.18"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e6 2. f4 d5 3. e5 c5 4. Nf3 Nc6 5. c3 h5 6. Na3 Nh6 7. Nc2 Nf5 8. Bd3 Nce7 9. Ne3 Nh6 10. 0-0 Qc7 11. Kh1 Bd7 12. b4 c4 13. Bc2 0-0-0 14. Nd4 g6 15. a4 Kb8 16. Ba3 Bg7 17. b5 Nc8 18. d3 f6 19. dxc4 fxe5 20. fxe5 Bxe5 21. c5 Ng4 22. Nxg4 hxg4 23. h3 gxh3 24. g4 Bxd4 25. cxd4 e5 26. c6 bxc6 27. bxc6 Qxc6 28. Rb1+ Ka8 29. Bb3 Nb6 30. Bc5 Rh4 31. Be7 Bxg4 32. Qe1 Rhh8 33. Bxd8 Rxd8 34. dxe5 Bf5 35. Rc1 Nc4 36. Rf2 Nxe5 37. Rxc6 Nxc6 38. Rd2 g5 39. Kh2 Kb7 1-0

[Event "Sao Bento do Sul op 08"]
[Site "Sao Bento do Sul"]
[Date "2017.08.19"]
[Round "4"]
[White "Das Chagas, David Ferreira"]
[Black "Da Silva Junior, Marco Aurelio"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1972"]
[BlackElo "1728"]
[PlyCount "53"]
[EventDate "2017.08.18"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 d6 2. Nc3 Nf6 3. d4 Nbd7 4. Be3 c6 5. Qd2 Qc7 6. h3 e5 7. Nf3 Be7 8. g4 b5 9. g5 b4 10. Nb5 cxb5 11. gxf6 Nxf6 12. Bxb5+ Bd7 13. Bxd7+ Qxd7 14. dxe5 Nxe4 15. Qd5 0-0 16. Qxe4 dxe5 17. Rd1 Qa4 18. Rg1 Rfe8 19. Ng5 g6 20. Qh4 h5 21. Qc4 Bxg5 22. Rxg5 Rac8 23. Rxg6+ Kf8 24. Bc5+ Re7 25. Bxe7+ Kxe7 26. Qh4+ Kf8 27. Rd8+ 1-0

[Event "Sao Bento do Sul op 08"]
[Site "Sao Bento do Sul"]
[Date "2017.08.19"]
[Round "2"]
[White "Das Chagas, David Ferreira"]
[Black "Nunes Filho, Marcelo Adriano"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "1972"]
[BlackElo "1833"]
[PlyCount "65"]
[EventDate "2017.08.18"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Nc3 Nf6 7. Be2 0-0 8. Nf3 Ne4 9. Qd3 Qa5 10. Qxe4 Bxc3+ 11. Kf1 Bb4 12. Ng5 Qf5 13. Qe3 f6 14. Bd3 Qxg5 15. Qh3 Qa5 16. Qxh7+ Kf7 17. Bg6+ Ke7 18. c5 Bxc5 19. Qxg7+ Kd8 20. dxc5 Qb5+ 21. Kg1 Qxc5 22. Be3 Qd6 23. Bh5 Nd7 24. Rd1 Qe7 25. Rxd7+ Bxd7 26. Qxe7+ Kxe7 27. Bc5+ Kd8 28. Bxf8 Kc7 29. Bg7 f5 30. Be5+ Kb6 31. h4 c5 32. Bf3 Rd8 33. h5 1-0

[Event "Sao Bento do Sul op 08"]
[Site "Sao Bento do Sul"]
[Date "2017.08.19"]
[Round "3"]
[White "De Borba, Gabriel"]
[Black "Das Chagas, David Ferreira"]
[Result "1-0"]
[ECO "B92"]
[WhiteElo "1888"]
[BlackElo "1972"]
[PlyCount "33"]
[EventDate "2017.08.18"]
[EventType "swiss"]
[EventRounds "6"]
[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. Be2 e5 7. Nb3 Be7 8. 0-0 Be6 9. f4 exf4 10. Bxf4 Nc6 11. Qe1 Ne5 12. Rd1 Qb6+ 13. Kh1 Nfg4 14. h3 g5 15. Bc1 Ne3 16. Bxe3 Qxe3 17. Bb5+ 1-0

[Event "Sao Bento do Sul op 08"]
[Site "Sao Bento do Sul"]
[Date "2017.08.18"]
[Round "1"]
[White "Goncalves, Eduardo Galina"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "1419"]
[BlackElo "1972"]
[PlyCount "85"]
[EventDate "2017.08.18"]
[EventType "swiss"]
[EventRounds "6"]
[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. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 0-0 10. 0-0-0 a5 11. Na4 Nbd7 12. Bb5 Ne8 13. Bxd7 Bxd7 14. Nb6 a4 15. Nc5 Bc6 16. Nxa8 Qxa8 17. Nd3 Nc7 18. Qb4 Re8 19. Qd2 Na6 20. Rhe1 b5 21. a3 Qb8 22. Qa5 Qc8 23. Qc3 Qb7 24. g3 Rc8 25. Qd2 Re8 26. c3 Rd8 27. h4 Rc8 28. Rh1 f5 29. Nf2 fxe4 30. fxe4 Kh8 31. Rde1 Bd7 32. Bg5 Bf8 33. Qe3 b4 34. Nd1 bxa3 35. bxa3 Qb3 36. Rh2 Qxa3+ 37. Rb2 Nc5 38. Kd2 Bg4 39. Kc2 Nb3 40. Rxb3 axb3+ 41. Kd3 Qa6+ 42. Kd2 Qa2+ 43. Kd3 0-1

[Event "Sao Bento do Sul op 06"]
[Site "Sao Bento do Sul"]
[Date "2017.06.11"]
[Round "6"]
[White "Zimmermann, Kleber Renato P"]
[Black "Das Chagas, David Ferreira"]
[Result "1/2-1/2"]
[ECO "D61"]
[WhiteElo "1944"]
[BlackElo "1968"]
[PlyCount "164"]
[EventDate "2017.06.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Be7 5. Nc3 d5 6. Bg5 0-0 7. e3 c6 8. Qc2 Nbd7 9. h4 a6 10. cxd5 exd5 11. Bd3 c5 12. dxc5 Nxc5 13. 0-0 h6 14. Bxf6 Bxf6 15. Rad1 Nxd3 16. Qxd3 Bxh4 17. Nxh4 Qxh4 18. Qxd5 Qb4 19. Rd2 Be6 20. Qd6 Qa5 21. Qe7 b5 22. a3 Rfe8 23. Qb4 Qc7 24. Rfd1 Rab8 25. Qd6 Qb7 26. Rd4 Kh7 27. Ne4 Rbd8 28. Qf4 Rxd4 29. Rxd4 Qc6 30. Nc3 Rc8 31. Rd6 Qb7 32. Qd4 Bc4 33. b4 Be6 34. Qe4+ Qxe4 35. Nxe4 Ra8 36. Nc5 Bc8 37. Rb6 Kg8 38. Kf1 Kf8 39. Rc6 Ke8 40. Rc7 g6 41. Ke1 h5 42. g3 Bg4 43. Nb3 Rd8 44. Nd4 g5 45. f3 Be6 46. Nxe6 fxe6 47. Ke2 a5 48. Rc5 axb4 49. axb4 Rd5 50. Rc7 h4 51. gxh4 gxh4 52. Rh7 h3 53. Rxh3 Ke7 54. Rh4 Rf5 55. Rd4 Rh5 56. f4 Rh1 57. Kd3 Rb1 58. Ke4 Kf6 59. Kf3 e5 60. Re4 exf4 61. Rxf4+ Ke5 62. Rh4 Rf1+ 63. Ke2 Rf5 64. Kd3 Rg5 65. Rh1 Kd6 66. Rh6+ Kc7 67. Kd4 Kb7 68. Re6 Kc7 69. Re5 Rg4+ 70. e4 Kc6 71. Re6+ Kc7 72. Kd5 Rh4 73. Re5 Kb6 74. Re6+ Kc7 75. Rc6+ Kb7 76. Rc5 Kb6 77. Kd4 Rh1 78. Rg5 Rd1+ 79. Kc3 Rc1+ 80. Kb3 Rb1+ 81. Kc3 Rc1+ 82. Kb3 Rb1+ 1/2-1/2

[Event "Sao Bento do Sul op 06"]
[Site "Sao Bento do Sul"]
[Date "2017.06.10"]
[Round "3"]
[White "Das Chagas, David Ferreira"]
[Black "Evangelista, Andressa"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1968"]
[BlackElo "1144"]
[PlyCount "35"]
[EventDate "2017.06.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Bc4 c6 5. d3 Nf6 6. f4 e5 7. Nf3 Bd6 8. Bd2 0-0 9. Ne4 Nxe4 10. Bxa5 Nc5 11. fxe5 Re8 12. 0-0 Bxe5 13. Bxf7+ Kxf7 14. Nxe5+ Kg8 15. Qh5 Re7 16. Bd8 Rxe5 17. Qf7+ Kh8 18. Qf8# 1-0

[Event "Sao Bento do Sul op 06"]
[Site "Sao Bento do Sul"]
[Date "2017.06.10"]
[Round "5"]
[White "Das Chagas, David Ferreira"]
[Black "Furmam, Fernando Gustavo"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "1968"]
[BlackElo "1717"]
[PlyCount "73"]
[EventDate "2017.06.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 e6 4. Bxc6 bxc6 5. f4 Nf6 6. Nf3 d5 7. e5 Nd7 8. d3 Be7 9. 0-0 0-0 10. Kh1 f6 11. Qe1 fxe5 12. fxe5 Ba6 13. Qg3 Rf5 14. Bh6 Qf8 15. Rae1 Kh8 16. Bc1 d4 17. Nd1 c4 18. Nf2 c5 19. h4 cxd3 20. cxd3 Rb8 21. b3 Bb7 22. Nh3 Bxf3 23. gxf3 Qf7 24. Bd2 Rf8 25. Kg2 Qh5 26. Ng5 Bxg5 27. hxg5 Qf7 28. f4 Nb6 29. Rh1 g6 30. Rh4 Qb7+ 31. Kh3 Nd5 32. Rc1 Qe7 33. Kg4 R8f7 34. Kh3 Qf8 35. Kg2 Qe7 36. Kh3 Qf8 37. Kg2 1/2-1/2

[Event "Sao Bento do Sul op 06"]
[Site "Sao Bento do Sul"]
[Date "2017.06.10"]
[Round "4"]
[White "De Borba, Gabriel"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "1888"]
[BlackElo "1968"]
[PlyCount "136"]
[EventDate "2017.06.09"]
[EventType "swiss"]
[EventRounds "6"]
[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. Be2 e5 7. Nb3 Be7 8. 0-0 0-0 9. Be3 Be6 10. f4 exf4 11. Rxf4 Nc6 12. Nd5 Bxd5 13. exd5 Ne5 14. c4 Nfd7 15. Rf1 Rc8 16. Rc1 Bg5 17. Bxg5 Qxg5 18. Qd2 Qd8 19. Rc3 Qb6+ 20. Kh1 Nc5 21. Rh3 Nxb3 22. Rxb3 Qc7 23. Qb4 Rb8 24. Qb6 Rfc8 25. Rc1 Qe7 26. Re3 Qg5 27. Rcc3 Qf5 28. h3 Rd8 29. a3 f6 30. b4 Qd7 31. Bd1 Qf5 32. Be2 Qd7 33. Qd4 b6 34. Rg3 Kh8 35. Bd3 g6 36. Qh4 Qg7 37. Qd4 Qd7 38. Re3 Qg7 39. Re1 Qd7 40. Rec1 Qa7 41. Be2 Rb7 42. Qh4 Kg7 43. Bg4 a5 44. c5 axb4 45. axb4 bxc5 46. bxc5 dxc5 47. Rxc5 Nd3 48. Rc6 g5 49. Qg3 Nxc1 50. Rxc1 Rxd5 51. Bf3 Qe3 52. Rc7+ Rd7 53. Rxd7+ Rxd7 54. Qb8 Qe1+ 55. Kh2 Qe5+ 56. Qxe5 fxe5 57. Kg3 Rd4 58. Kf2 Kf6 59. Ke3 Ra4 60. Bc6 Ra3+ 61. Ke2 Kf5 62. Bb7 Kf4 63. Bc6 h5 64. Bb7 g4 65. hxg4 hxg4 66. Bc6 Ra2+ 67. Kf1 g3 68. Ke1 e4 0-1

[Event "Sao Bento do Sul op 06"]
[Site "Sao Bento do Sul"]
[Date "2017.06.09"]
[Round "2"]
[White "Kim, Thiago"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "1318"]
[BlackElo "1968"]
[PlyCount "78"]
[EventDate "2017.06.09"]
[EventType "swiss"]
[EventRounds "6"]
[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. Be3 e5 7. Nb3 Be6 8. Be2 Be7 9. 0-0 0-0 10. Re1 b5 11. a3 Nbd7 12. f3 Nb6 13. Bd3 Nc4 14. Bxc4 bxc4 15. Nd2 Rb8 16. Rb1 Qa5 17. Qe2 Rfc8 18. Qf2 Rb7 19. Nf1 Nh5 20. Red1 Bf8 21. Ng3 Nxg3 22. Qxg3 f5 23. exf5 Bxf5 24. Qf2 Be6 25. Qe2 d5 26. Bc1 d4 27. Ne4 Bf5 28. Kh1 Qc7 29. Re1 Bxa3 30. g4 Bg6 31. h4 Bb4 32. Bd2 Bxe4 33. Bxb4 Bxf3+ 34. Qxf3 Rxb4 35. Qd5+ Kh8 36. Rxe5 c3 37. Rbe1 Rbb8 38. Qxd4 cxb2 39. Qxb2 Qc6+ 0-1

[Event "Curitiba IEP&Copel op"]
[Site "Curitiba"]
[Date "2017.05.14"]
[Round "6"]
[White "Caetano, Hugo Zanotti Mendon"]
[Black "Das Chagas, David Ferreira"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2188"]
[BlackElo "1966"]
[PlyCount "107"]
[EventDate "2017.05.12"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. cxd5 exd5 6. Bg5 Be7 7. Qc2 0-0 8. e3 Ne4 9. Bxe7 Qxe7 10. Bd3 f5 11. 0-0 Be6 12. Ne5 Nd7 13. Nxd7 Bxd7 14. Rae1 Rae8 15. f3 Nd6 16. b4 b5 17. a3 Rf7 18. f4 Ra8 19. Re2 a6 20. Nb1 Nc4 21. Bxc4 bxc4 22. Nc3 a5 23. Rb1 axb4 24. axb4 Ra3 25. Qc1 Ra8 26. Qc2 Ra3 27. Qc1 Ra8 28. Qb2 Rff8 29. b5 cxb5 30. Nxd5 Qd6 31. Nc3 Rfb8 32. Qb4 Qxb4 33. Rxb4 Ra3 34. Rc2 Bc6 35. Kf2 Kf7 36. d5 Rxc3 37. Rxc3 Bxd5 38. e4 Bxe4 39. Rcxc4 bxc4 40. Rxb8 c3 41. Rc8 c2 42. Ke3 Bxg2 43. Rxc2 Be4 44. Ra2 h6 45. Ra6 Bc2 46. Kd4 Be4 47. Ke5 Bc2 48. h4 h5 49. Ra7+ Kf8 50. Ke6 Be4 51. Rc7 Kg8 52. Rc8+ Kh7 53. Kf7 g5 54. hxg5 1-0

[Event "Curitiba IEP&Copel op"]
[Site "Curitiba"]
[Date "2017.05.14"]
[Round "5"]
[White "Das Chagas, David Ferreira"]
[Black "Bueno, Vinicius Nogueira"]
[Result "1-0"]
[ECO "E24"]
[WhiteElo "1966"]
[BlackElo "1759"]
[PlyCount "72"]
[EventDate "2017.05.12"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. e3 0-0 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 Nxd5 9. Bd2 f5 10. Bd3 b6 11. Qe2 Nd7 12. Nh3 Kh8 13. 0-0 e5 14. e4 Nc7 15. exf5 cxd4 16. Bg5 Qe8 17. cxd4 exd4 18. Qc2 Nc5 19. Rfe1 Qa4 20. Qxa4 Nxa4 21. Be4 Bxf5 22. Bxa8 Rxa8 23. Rad1 Bxh3 24. gxh3 Nb5 25. Re7 Kg8 26. Kg2 Kf8 27. Re5 a6 28. Rde1 h6 29. Be7+ Kf7 30. Bb4 Ra7 31. h4 Nb2 32. h5 Nc4 33. Rf5+ Kg8 34. Re8+ Kh7 35. Rff8 g6 36. Rh8+ Kg7 1-0

[Event "Curitiba IEP&Copel op"]
[Site "Curitiba"]
[Date "2017.05.13"]
[Round "3"]
[White "Das Chagas, David Ferreira"]
[Black "Santa Isabel, Marivaldo dos Reis"]
[Result "1-0"]
[ECO "D55"]
[WhiteElo "1966"]
[BlackElo "1616"]
[PlyCount "31"]
[EventDate "2017.05.12"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Bg5 e6 5. e3 Be7 6. Nf3 0-0 7. Qd2 Na6 8. a3 Nc7 9. c5 Nh5 10. h4 f6 11. Bd3 f5 12. g4 fxg4 13. Bxh7+ Kh8 14. Ne5 Rf5 15. Bxf5 exf5 16. Nf7+ 1-0

[Event "Curitiba IEP&Copel op"]
[Site "Curitiba"]
[Date "2017.05.13"]
[Round "4"]
[White "Umetsubo, Cesar Hidemitsu"]
[Black "Das Chagas, David Ferreira"]
[Result "1-0"]
[ECO "E49"]
[WhiteElo "2390"]
[BlackElo "1966"]
[PlyCount "55"]
[EventDate "2017.05.12"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 0-0 7. Bd3 d5 8. cxd5 exd5 9. Ne2 c4 10. Bc2 Nc6 11. 0-0 Re8 12. f3 b5 13. Ng3 h5 14. e4 h4 15. Nh1 h3 16. e5 hxg2 17. Kxg2 Nh5 18. f4 Qh4 19. f5 g5 20. Ng3 g4 21. Nxh5 Qxh5 22. Rf4 Qh3+ 23. Kh1 Kf8 24. Rxg4 Ne7 25. Rg3 Qh7 26. f6 Nf5 27. Rg5 Qh4 28. Qg1 1-0

[Event "Curitiba IEP&Copel op"]
[Site "Curitiba"]
[Date "2017.05.12"]
[Round "1"]
[White "Chiaretto, Ivo Henrique"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "1356"]
[BlackElo "1966"]
[PlyCount "124"]
[EventDate "2017.05.12"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bf4 Be7 4. e3 b6 5. Be2 Bb7 6. 0-0 Nh5 7. c3 Nxf4 8. exf4 d6 9. Nbd2 Nd7 10. Bd3 Nf6 11. f5 exf5 12. Bxf5 0-0 13. Qc2 g6 14. Bd3 Re8 15. Ne4 Nd5 16. Bb5 c6 17. Bc4 Nf4 18. Ng3 c5 19. dxc5 bxc5 20. Bb5 Rf8 21. Rfe1 Rb8 22. Be2 Re8 23. Rad1 Qb6 24. Qd2 Nxe2+ 25. Rxe2 Ba6 26. Rxe7 Rxe7 27. Qxd6 Qxd6 28. Rxd6 Be2 29. b3 c4 30. b4 a5 31. a3 axb4 32. axb4 Bxf3 33. gxf3 Re1+ 34. Kg2 Rc1 35. Ne2 Rc2 36. Rc6 Rxe2 37. Rxc4 Rb5 38. Re4 Rc2 39. Rc4 Kf8 40. Rc7 Rxb4 41. Rc8+ Kg7 42. cxb4 Rxc8 43. b5 Rb8 44. b6 Rxb6 45. Kg3 g5 46. h4 h6 47. hxg5 hxg5 48. f4 Rb3+ 49. Kg4 gxf4 50. Kxf4 Kf6 51. f3 Rb4+ 52. Kg3 Kf5 53. f4 Rb3+ 54. Kf2 Kxf4 55. Ke2 Ke4 56. Kd2 Ra3 57. Kc2 Kd4 58. Kb2 Rc3 59. Ka2 Kc5 60. Kb2 Kc4 61. Ka2 Rc2+ 62. Ka3 Rd2 0-1

[Event "Parana-ch"]
[Site "Pirai do Sul"]
[Date "2017.02.05"]
[Round "8"]
[White "Cardoso Pimenta, Ciro Jose"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "E91"]
[WhiteElo "2027"]
[BlackElo "1952"]
[PlyCount "142"]
[EventDate "2017.02.01"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. d4 d6 5. e4 0-0 6. Be2 Nbd7 7. Be3 Ng4 8. Bf4 e5 9. Bg3 Re8 10. h3 exd4 11. Nxd4 Ngf6 12. f3 Nh5 13. Bf2 Nf4 14. g3 Nxe2 15. Qxe2 Nc5 16. Nb3 Bxc3+ 17. bxc3 Qe7 18. 0-0-0 f5 19. Nxc5 dxc5 20. Qe3 fxe4 21. Qxe4 Qxe4 22. fxe4 b6 23. Rhe1 Bxh3 24. e5 Be6 25. Be3 Rad8 26. Bg5 Rxd1+ 27. Rxd1 Bxc4 28. Bf6 Be6 29. a3 h6 30. Rd2 Kh7 31. a4 g5 32. a5 bxa5 33. Rb2 a4 34. Rb7 Rc8 35. Rxa7 Bb3 36. Be7 Kg6 37. Bxc5 Kf5 38. Ra6 h5 39. e6 Bxe6 40. Rxa4 c6 41. Kd2 Bd5 42. Ke3 Re8+ 43. Kf2 Rb8 44. Bb4 h4 45. gxh4 gxh4 46. Bd6 Rb2+ 47. Ke3 h3 48. Rh4 Bg2 49. Rh8 Ke6 50. Bf4 Kd5 51. Rh5+ Kc4 52. Be5 Rb5 53. Rh4+ Kb3 54. Bd4 Rf5 55. Ke2 c5 56. Bh8 c4 57. Bd4 Kc2 58. Ke3 Rf3+ 59. Ke2 Rd3 60. Be5 Rd2+ 61. Ke3 Bf1 62. Rh6 Re2+ 63. Kd4 Rxe5 64. Kxe5 Kxc3 65. Ke4 Kd2 66. Rd6+ Bd3+ 67. Kf3 c3 68. Kg3 c2 69. Rc6 Bf1 70. Rd6+ Kc3 71. Rc6+ Bc4 0-1

[Event "Parana-ch"]
[Site "Pirai do Sul"]
[Date "2017.02.04"]
[Round "7"]
[White "Das Chagas, David Ferreira"]
[Black "Borges, Victor Hugo Moreira"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "1952"]
[BlackElo "2170"]
[PlyCount "134"]
[EventDate "2017.02.01"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 a6 5. Bd3 Bxd3 6. Qxd3 e6 7. Ne2 c5 8. c3 Nc6 9. Nd2 Rc8 10. a3 cxd4 11. cxd4 Nge7 12. Nf3 Nf5 13. g4 Nfe7 14. Bg5 Qb6 15. b4 h6 16. Be3 g6 17. Kf1 h5 18. gxh5 Rxh5 19. Ng3 Rh8 20. Kg2 Nf5 21. Nxf5 gxf5 22. Rac1 Be7 23. Bg5 Kd7 24. Qd2 Rcg8 25. Rh3 Rh5 26. Rg3 Bxg5 27. hxg5 Kc8 28. Rc5 Kb8 29. Rh3 Rgh8 30. Rxh5 Rxh5 31. Qc3 Ka7 32. a4 Kb8 33. b5 axb5 34. Rxb5 Qc7 35. a5 Na7 36. Rc5 Qd7 37. Qb4 Rh8 38. Rc2 Rc8 39. Rxc8+ Nxc8 40. Nd2 Qe7 41. Qc3 Qxg5+ 42. Kf1 Qd8 43. Nb3 Qc7 44. Nc5 Ka7 45. Qb4 Ne7 46. Nd3 Nc6 47. Qc5+ Ka8 48. Qf8+ Qb8 49. Qc5 Qc7 50. Qf8+ Nb8 51. Nc5 Ka7 52. Kg2 Nc6 53. Nb3 Qe7 54. Qc8 Qd8 55. Qxd8 Nxd8 56. Nd2 Nc6 57. Nf3 Ka6 58. Ng5 Nd8 59. Kg3 Kxa5 60. Kh4 b5 61. Kh5 b4 62. Kh6 b3 63. Kg7 b2 64. Nxf7 Nxf7 65. Kxf7 b1Q 66. Kxe6 Qe4 67. Kf6 Qxd4 0-1

[Event "Parana-ch"]
[Site "Pirai do Sul"]
[Date "2017.02.04"]
[Round "6"]
[White "Loss, Victor Pinheiro Cos"]
[Black "Das Chagas, David Ferreira"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "1299"]
[BlackElo "1952"]
[PlyCount "66"]
[EventDate "2017.02.01"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. Bc4 Be7 4. d4 exd4 5. Nxd4 Nf6 6. Nf5 Bxf5 7. exf5 Qd7 8. Bd3 Nc6 9. c3 0-0-0 10. b3 Rde8 11. 0-0 g6 12. f4 Bd8 13. Qc2 d5 14. fxg6 hxg6 15. f5 Ne4 16. fxg6 Qd6 17. h3 Qxg6 18. Kh2 Bf6 19. Bxe4 dxe4 20. Na3 Ne5 21. Nc4 Nd3 22. a4 Bh4 23. Be3 Bg3+ 24. Kg1 f5 25. Bf2 Bxf2+ 26. Rxf2 Nxf2 27. Kxf2 f4 28. Kf1 Qg3 29. Rc1 f3 30. Ne3 fxg2+ 31. Nxg2 Rhf8+ 32. Kg1 e3 33. Re1 Qf2+ 0-1

[Event "Parana-ch"]
[Site "Pirai do Sul"]
[Date "2017.02.03"]
[Round "4"]
[White "Cruz, William Ferreira Da"]
[Black "Das Chagas, David Ferreira"]
[Result "1-0"]
[ECO "E21"]
[WhiteElo "2241"]
[BlackElo "1952"]
[PlyCount "77"]
[EventDate "2017.02.01"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 0-0 5. Bg5 c5 6. e3 cxd4 7. exd4 h6 8. Bh4 Qa5 9. Qc2 Ne4 10. Rc1 d5 11. Bd3 Qxa2 12. Bxe4 dxe4 13. Nd2 Qa5 14. Ndxe4 Nc6 15. Qd3 f5 16. Nd2 e5 17. d5 e4 18. Qc2 Ne5 19. 0-0 Bxc3 20. Ra1 Bxd2 21. Rxa5 Bxa5 22. Be7 Re8 23. Ba3 Nd3 24. Qa4 Be6 25. Qxa5 b6 26. Qc3 Bf7 27. b3 Rac8 28. Qd4 Nf4 29. Re1 Nd3 30. Rd1 Red8 31. h3 b5 32. Rxd3 exd3 33. Bb2 Kf8 34. Qxg7+ Ke8 35. Ba3 Rc7 36. Qf8+ Kd7 37. Qxf7+ Kc8 38. Qxf5+ Kb7 39. Qxd3 1-0

[Event "Parana-ch"]
[Site "Pirai do Sul"]
[Date "2017.02.03"]
[Round "5"]
[White "Das Chagas, David Ferreira"]
[Black "Idalgo Filho, Robson Farias"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "1952"]
[BlackElo "1854"]
[PlyCount "27"]
[EventDate "2017.02.01"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2 Qe7 6. Nc3 Nxc3 7. dxc3 Bg4 8. Qxe7+ Bxe7 9. Be2 Nc6 10. Be3 Bf6 11. Nd4 Nxd4 12. Bxd4 Bxd4 13. cxd4 Bxe2 14. Kxe2 1/2-1/2

[Event "Parana-ch"]
[Site "Pirai do Sul"]
[Date "2017.02.02"]
[Round "3"]
[White "Das Chagas, David Ferreira"]
[Black "Souza, Kim Garcia De"]
[Result "1-0"]
[ECO "D66"]
[WhiteElo "1952"]
[BlackElo "1732"]
[PlyCount "43"]
[EventDate "2017.02.01"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nc3 c6 4. Bg5 e6 5. e3 Be7 6. Nf3 Nbd7 7. Rc1 0-0 8. Bd3 dxc4 9. Bxc4 Nb6 10. Bb3 Nbd5 11. h4 h5 12. Ne5 g6 13. Bh6 Re8 14. Qf3 Bf8 15. Bg5 Be7 16. Ne4 Kg7 17. Bh6+ Kg8 18. Ng5 Bb4+ 19. Kf1 Re7 20. Ngxf7 Rxf7 21. Nxf7 Kxf7 22. e4 1-0

[Event "Parana-ch"]
[Site "Pirai do Sul"]
[Date "2017.02.02"]
[Round "2"]
[White "Delgado, Lidio Dias"]
[Black "Das Chagas, David Ferreira"]
[Result "1/2-1/2"]
[ECO "C90"]
[WhiteElo "2209"]
[BlackElo "1952"]
[PlyCount "77"]
[EventDate "2017.02.01"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Be7 6. 0-0 Nf6 7. Re1 0-0 8. d3 d6 9. c3 Na5 10. Bc2 c5 11. Nbd2 Nc6 12. Nf1 Re8 13. Ng3 Bf8 14. a4 Rb8 15. axb5 axb5 16. Bb3 Na5 17. Ba2 c4 18. d4 exd4 19. Nxd4 Nd7 20. Bb1 Nc5 21. Bc2 Be6 22. Be3 Nab3 23. Rb1 Qc7 24. f4 Na5 25. Qd2 Nc6 26. Ra1 Nb3 27. Bxb3 cxb3 28. Ra6 Na5 29. Qf2 Bc8 30. Rxa5 Qxa5 31. Nc6 Qc7 32. Nxb8 Qxb8 33. Bd4 b4 34. Qd2 bxc3 35. Qxc3 d5 36. e5 Ba6 37. Re3 Bc4 38. f5 Qb4 39. Kf2 1/2-1/2

