[Event "Florianopolis op 10th"]
[Site "Florianopolis"]
[Date "2024.01.25"]
[Round "7"]
[White "Cavalcante, Rodrigo Moreira"]
[Black "Guerreiro, Heitor Koffermann"]
[Result "1-0"]
[ECO "C96"]
[WhiteElo "1801"]
[BlackElo "1467"]
[PlyCount "101"]
[EventDate "2024.01.20"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CB05_2024"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 d6 5. Re1 a6 6. Ba4 b5 7. Bb3 Be7 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Nc6 12. d5 Nb8 13. Nbd2 Nbd7 14. Nf1 Re8 15. Ng3 Nf8 16. a4 Bd7 17. Be3 bxa4 18. Bxa4 Bxa4 19. Rxa4 N8d7 20. Qe2 a5 21. Rea1 Nb6 22. R4a2 Qc7 23. Nd2 Nfd7 24. Nc4 Nxc4 25. Qxc4 Reb8 26. Nf5 Bf8 27. Bc1 Nb6 28. Qe2 h6 29. Ne3 Be7 30. Nf5 Bf8 31. Qg4 Kh7 32. f4 Nc4 33. fxe5 Nxe5 34. Qe2 Qd8 35. Bf4 g6 36. Ne3 Qh4 37. Bxe5 dxe5 38. Nc4 Rb7 39. Rxa5 Rxa5 40. Rxa5 Qf4 41. Ra8 Bg7 42. Ra5 Bf8 43. Ra1 h5 44. Rf1 Qg5 45. Qf3 Bg7 46. Rf2 Qc1+ 47. Kh2 Qb1 48. Qe3 Ra7 49. Na3 Qa2 50. Qxc5 Rd7 51. Qc6 1-0

[Event "Florianopolis op 10th"]
[Site "Florianopolis"]
[Date "2024.01.24"]
[Round "6"]
[White "Guerreiro, Heitor Koffermann"]
[Black "Ulrich, Henning"]
[Result "1/2-1/2"]
[ECO "B84"]
[WhiteElo "1467"]
[BlackElo "1822"]
[PlyCount "67"]
[EventDate "2024.01.20"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CB05_2024"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 c5 3. Nf3 cxd4 4. Nxd4 d6 5. e4 a6 6. Be2 Qc7 7. Be3 e6 8. f3 Nbd7 9. Qd2 Be7 10. 0-0 0-0 11. Rad1 Rd8 12. a4 b6 13. Rfe1 Bb7 14. Bf2 Ne5 15. Bg3 Rac8 16. Qc1 Nc6 17. Nxc6 Qxc6 18. Bd3 Nd7 19. Bf2 Bf6 20. Ne2 Qxa4 21. c3 Qc6 22. Bd4 Bxd4+ 23. Nxd4 Qc5 24. Kh1 b5 25. Nb3 Qh5 26. Na5 Ba8 27. Be2 d5 28. exd5 Bxd5 29. Qe3 Nc5 30. c4 bxc4 31. Nxc4 Bxc4 32. Rxd8+ Rxd8 33. Bxc4 Rc8 34. Rc1 1/2-1/2

[Event "Florianopolis op 10th"]
[Site "Florianopolis"]
[Date "2024.01.23"]
[Round "5"]
[White "Menezes, Jose Eduardo C"]
[Black "Guerreiro, Heitor Koffermann"]
[Result "1-0"]
[ECO "C30"]
[WhiteElo "1813"]
[BlackElo "1467"]
[PlyCount "124"]
[EventDate "2024.01.20"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CB05_2024"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Bxd2+ 8. Nbxd2 Nc6 9. Bb5 Bd7 10. 0-0 0-0 11. a3 d5 12. e5 Ne4 13. Bd3 Bf5 14. Qc2 Nxd2 15. Qxd2 Bxd3 16. Qxd3 f6 17. Rae1 Ne7 18. Rf2 Qd7 19. Rfe2 fxe5 20. fxe5 Qf5 21. Qb3 b6 22. Qc2 Qxc2 23. Rxc2 Rac8 24. Rec1 c6 25. b4 Ra8 26. Rb2 b5 27. h3 a5 28. Rc3 axb4 29. axb4 Ra1+ 30. Kh2 Rfa8 31. g4 R8a2 32. Rcc2 Rxb2 33. Rxb2 h6 34. Kg3 Kf7 35. h4 Ke6 36. Nd2 Ra3+ 37. Rb3 Ra2 38. Rd3 Ra4 39. Rb3 Ra2 40. Nf3 Ra4 41. Ne1 h5 42. Nd3 Ra1 43. Nf4+ Kf7 44. Nxh5 Rg1+ 45. Kf4 Rd1 46. Ke3 Rh1 47. Kf4 Rd1 48. Rf3 Kg8 49. Ke3 Rb1 50. Nf4 Rxb4 51. Nd3 Rc4 52. e6 Ra4 53. h5 Ra7 54. Kf4 Nc8 55. Ke5 Rb7 56. Nc5 Re7 57. Ra3 Kh7 58. Ra8 Nb6 59. Ra6 Nc4+ 60. Kf4 Rc7 61. g5 Kg8 62. Ra8+ Kh7 1-0

[Event "Florianopolis op 10th"]
[Site "Florianopolis"]
[Date "2024.01.22"]
[Round "4"]
[White "Guerreiro, Heitor Koffermann"]
[Black "Rekik, Ismail"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1467"]
[BlackElo "1919"]
[PlyCount "116"]
[EventDate "2024.01.20"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CB05_2024"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bf4 Bf5 4. e3 e6 5. Bd3 Bg6 6. Nge2 a6 7. 0-0 c5 8. dxc5 Bxc5 9. a3 Nbd7 10. Bg5 Qc7 11. Ng3 Bxd3 12. cxd3 Bd6 13. Rc1 Qb8 14. e4 0-0 15. exd5 exd5 16. d4 h6 17. Bxf6 Nxf6 18. Qf3 Rd8 19. Rfe1 b5 20. Nf1 b4 21. axb4 Qxb4 22. Rc2 Qxd4 23. Rd2 Qb4 24. Red1 Qf4 25. Nxd5 Qxf3 26. gxf3 Nxd5 27. Rxd5 Be7 28. Ne3 Rdb8 29. R1d2 Bf6 30. Nd1 a5 31. Kf1 Rb4 32. Kg2 Ra6 33. Kf1 a4 34. Kg2 Rb3 35. h3 Bxb2 36. Nxb2 a3 37. Na4 Rxa4 38. Ra2 Rf4 39. Ra5 Rfxf3 40. h4 g6 41. Rb5 Rxb5 42. Kxf3 Ra5 43. Ke3 Kg7 44. Kf4 f5 45. Ke3 Kf6 46. Kf3 Ra4 47. Kg3 Rg4+ 48. Kh3 Ra4 49. Kg3 Ke5 50. f4+ Kd4 51. Kf3 Kc3 52. Kg3 Kb3 53. Re2 a2 54. Rxa2 Rxa2 55. h5 gxh5 56. Kh4 Rf2 57. Kxh5 Rxf4 58. Kxh6 Rg4 0-1

[Event "Florianopolis op 10th"]
[Site "Florianopolis"]
[Date "2024.01.21"]
[Round "2"]
[White "Guerreiro, Heitor Koffermann"]
[Black "Viana, Amanda Thamy Koto"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1467"]
[PlyCount "73"]
[EventDate "2024.01.20"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CB05_2024"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 e6 3. e4 d6 4. Nf3 Be7 5. Bd3 0-0 6. 0-0 d5 7. Bg5 c5 8. exd5 cxd4 9. Nxd4 Nxd5 10. Bxe7 Nxe7 11. Re1 Nbc6 12. Nxc6 Nxc6 13. Qh5 h6 14. Re3 Qg5 15. Qxg5 hxg5 16. Be4 f5 17. Bxc6 bxc6 18. Rd1 Kf7 19. Rd6 Rb8 20. b3 Rb6 21. Na4 Ra6 22. Re2 c5 23. Rxa6 Bxa6 24. Rd2 Bb5 25. Nxc5 Rc8 26. b4 a5 27. c3 axb4 28. cxb4 Ra8 29. f3 Kf6 30. Kf2 Ke5 31. h3 f4 32. Ke1 Bc4 33. a4 Kf5 34. Rd7 g6 35. a5 Bd5 36. a6 Rb8 37. Rf7+ 1-0

[Event "Florianopolis op 10th"]
[Site "Florianopolis"]
[Date "2024.01.20"]
[Round "1"]
[White "Lage, Pedro Ferreira"]
[Black "Guerreiro, Heitor Koffermann"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2100"]
[BlackElo "1467"]
[PlyCount "37"]
[EventDate "2024.01.20"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CB05_2024"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. d4 Bb4+ 5. Nbd2 dxc4 6. Bg2 0-0 7. 0-0 c5 8. Nxc4 cxd4 9. Nxd4 Qc7 10. Qb3 Rd8 11. Bf4 Qe7 12. Rfd1 Nd5 13. Nf5 Qf6 14. Be5 Qxf5 15. e4 Qg6 16. exd5 Na6 17. dxe6 Rxd1+ 18. Rxd1 Qxe6 19. Qxb4 1-0

[Event "Joacaba op 2nd"]
[Site "Joacaba"]
[Date "2023.07.02"]
[Round "5"]
[White "Boeck, Moacir Luis"]
[Black "Guerreiro, Heitor Koffermann"]
[Result "1-0"]
[ECO "B10"]
[WhiteElo "1862"]
[BlackElo "1375"]
[PlyCount "47"]
[EventDate "2023.06.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c6 2. c4 d5 3. exd5 cxd5 4. cxd5 Qxd5 5. Nc3 Qd8 6. d4 Nf6 7. Bd3 g6 8. Nf3 Bg7 9. 0-0 0-0 10. Re1 Bg4 11. h3 Be6 12. Rxe6 fxe6 13. Ng5 Qd7 14. Bc4 Nd5 15. Nxe6 Nxc3 16. bxc3 Kh8 17. Nxf8 Bxf8 18. Qf3 Nc6 19. Bd2 Bg7 20. Re1 Rf8 21. Qe4 Qf5 22. Qxf5 Rxf5 23. f4 Bf8 24. g4 1-0

[Event "Joacaba op 2nd"]
[Site "Joacaba"]
[Date "2023.07.02"]
[Round "6"]
[White "Guerreiro, Heitor Koffermann"]
[Black "Rodrigues, Emanuela Isabele"]
[Result "1/2-1/2"]
[ECO "B15"]
[WhiteElo "1375"]
[BlackElo "1787"]
[PlyCount "27"]
[EventDate "2023.06.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Bc4 Be7 7. 0-0 0-0 8. d4 Bg4 9. c3 Qc7 10. h3 Bh5 11. Re1 b5 12. Bd3 Re8 13. b3 Nd7 14. d5 1/2-1/2

[Event "Joacaba op 2nd"]
[Site "Joacaba"]
[Date "2023.07.01"]
[Round "3"]
[White "Guerreiro, Heitor Koffermann"]
[Black "Do Prado, Bruno"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "1375"]
[BlackElo "1800"]
[PlyCount "53"]
[EventDate "2023.06.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 bxc6 5. 0-0 g6 6. d3 Bg7 7. c3 Nf6 8. Be3 d6 9. h3 0-0 10. Nbd2 Rb8 11. Qc2 Bd7 12. Rfe1 Qc8 13. Bg5 e5 14. Nc4 d5 15. Ncxe5 Bxh3 16. gxh3 Qxh3 17. Bxf6 Bxf6 18. exd5 cxd5 19. Qe2 Rfe8 20. Qf1 Qf5 21. d4 Bxe5 22. Nxe5 Rxb2 23. Reb1 Rc2 24. Rc1 Qg5+ 25. Kh1 Qh4+ 26. Kg1 Qg5+ 27. Kh1 1/2-1/2

[Event "Joacaba op 2nd"]
[Site "Joacaba"]
[Date "2023.07.01"]
[Round "2"]
[White "Quevedo Naissinger, Willian"]
[Black "Guerreiro, Heitor Koffermann"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2056"]
[BlackElo "1375"]
[PlyCount "65"]
[EventDate "2023.06.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Nc6 7. Bf4 Bf5 8. Qd2 Be7 9. 0-0-0 0-0 10. Rg1 Be4 11. Ng5 Bxg5 12. Bxg5 f6 13. Bh4 Ne7 14. f3 Bg6 15. g4 Qd7 16. Bf2 Qa4 17. a3 f5 18. h4 fxg4 19. Rxg4 Qd7 20. Bc4+ d5 21. Bc5 c6 22. Rdg1 Rf7 23. Be2 b6 24. Bd4 c5 25. Be5 a6 26. h5 Qf5 27. hxg6 Nxg6 28. Qxd5 Re8 29. Rg5 Qxe5 30. Rxe5 Rxe5 31. Qd8+ Rf8 32. Bc4+ Kh8 33. Qd6 1-0

[Event "Joacaba op 2nd"]
[Site "Joacaba"]
[Date "2023.07.01"]
[Round "4"]
[White "Stori, Dara"]
[Black "Guerreiro, Heitor Koffermann"]
[Result "0-1"]
[ECO "C55"]
[BlackElo "1375"]
[PlyCount "114"]
[EventDate "2023.06.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bc4 Nxe4 5. Bxf7+ Kxf7 6. Nxe4 Be7 7. d4 exd4 8. Nxd4 d5 9. Qf3+ Bf6 10. Ng5+ Kg8 11. Nde6 Bxe6 12. Nxe6 Qd6 13. Qg4 Re8 14. 0-0 Qxe6 15. Qg3 Be5 16. Qg5 h6 17. Qh5 Kh7 18. Bd2 Rhf8 19. Rae1 Qg6 20. Qh4 Qxc2 21. Be3 d4 22. Bc1 Bf6 23. Qg3 Rxe1 24. Rxe1 Be5 25. Qh4 Qf5 26. Rf1 Bf4 27. Bxf4 Qxf4 28. Qxf4 Rxf4 29. Rd1 Kg6 30. g3 Rf6 31. a3 Rd6 32. f4 Ne7 33. h3 Kf5 34. Kf2 c5 35. b4 c4 36. Rc1 b5 37. Ke2 Re6+ 38. Kf3 Re3+ 39. Kf2 Rxa3 40. Re1 Nc6 41. Rb1 Rb3 42. Ra1 Rxb4 43. Ra6 c3 44. Rxc6 Rc4 45. Rxc4 bxc4 46. Ke2 a5 47. Kd1 a4 48. Kc2 a3 49. Kb1 d3 50. Ka2 d2 51. Kxa3 d1Q 52. Kb4 c2 53. Kc5 c1Q 54. g4+ Ke4 55. f5 Qa3+ 56. Kc6 Qdd6+ 57. Kb7 Qaa6# 0-1

[Event "Joacaba op 2nd"]
[Site "Joacaba"]
[Date "2023.06.30"]
[Round "1"]
[White "Guerreiro, Heitor Koffermann"]
[Black "Trentini, Agata Papini"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1375"]
[BlackElo "1683"]
[PlyCount "61"]
[EventDate "2023.06.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. 0-0 Bc5 6. Be3 Bb6 7. c3 d6 8. Nbd2 Bg4 9. b4 0-0 10. Qc2 Qd7 11. a3 Ne7 12. d4 Ng6 13. h3 Bh5 14. Rfe1 Nf4 15. dxe5 dxe5 16. Nxe5 Nxh3+ 17. gxh3 Qxh3 18. Bf1 Qe6 19. Bxb6 Qxe5 20. Bd4 Qf4 21. Re3 Ng4 22. Rg3 Rad8 23. Nf3 Nf6 24. Bg2 g6 25. Be5 Qxe4 26. Qxe4 Nxe4 27. Rh3 c6 28. Rh4 Ng5 29. Nxg5 hxg5 30. Rd4 Rde8 31. Bd6 1-0

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.29"]
[Round "10"]
[White "Guerreiro, Heitor Koffermann"]
[Black "Da Silva, Carlos Rafael Rego"]
[Result "1/2-1/2"]
[ECO "D01"]
[WhiteElo "1313"]
[BlackElo "1778"]
[PlyCount "75"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. Nf3 g6 5. e3 Bg7 6. Be2 0-0 7. 0-0 c5 8. dxc5 Nxc5 9. Bxf6 Bxf6 10. Nxd5 Bxb2 11. Rb1 Bg7 12. c4 e6 13. Nf4 b6 14. Qxd8 Rxd8 15. Rfd1 Bb7 16. Rxd8+ Rxd8 17. Rd1 Rxd1+ 18. Bxd1 Ne4 19. Ne2 Kf8 20. Nfd4 Nd2 21. Bb3 Ba6 22. Nb5 Bxb5 23. cxb5 Nxb3 24. axb3 Ke7 25. Kf1 Kd6 26. Ke1 Kc5 27. Kd2 Kxb5 28. Ng3 Kb4 29. Kc2 Be5 30. f4 Bg7 31. Ne4 h6 32. Nd6 f5 33. Nc8 g5 34. Nxa7 Kc5 35. Kd3 e5 36. fxe5 Bxe5 37. h3 Bb8 38. Nc8 1/2-1/2

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.28"]
[Round "9"]
[White "Coutinho, Lucas Buss Soares"]
[Black "Guerreiro, Heitor Koffermann"]
[Result "1/2-1/2"]
[ECO "B52"]
[WhiteElo "1099"]
[BlackElo "1313"]
[PlyCount "31"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Nxd7 5. 0-0 Ngf6 6. Nc3 g6 7. Re1 Bg7 8. d4 cxd4 9. Nxd4 0-0 10. Bg5 Qa5 11. Qd2 Ne5 12. Qe2 Nc6 13. Nf3 Nd7 14. Nd5 Qd8 15. c3 Nb6 16. Rad1 1/2-1/2

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.28"]
[Round "8"]
[White "Guerreiro, Heitor Koffermann"]
[Black "Ricci, Lucas Estremes"]
[Result "0-1"]
[ECO "D01"]
[WhiteElo "1313"]
[BlackElo "1559"]
[PlyCount "84"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. e3 h6 5. Bh4 c6 6. Bd3 e5 7. dxe5 Nxe5 8. Nf3 Nxd3+ 9. Qxd3 Be7 10. h3 0-0 11. 0-0 Re8 12. Bg3 b5 13. Nd4 Bb7 14. Rad1 b4 15. Nce2 Ne4 16. c4 Nxg3 17. Nxg3 Qb6 18. b3 dxc4 19. bxc4 Rad8 20. Qb3 c5 21. Ndf5 Bf8 22. Rxd8 Rxd8 23. Rd1 g6 24. Nh4 Bg7 25. Nf3 a5 26. Rxd8+ Qxd8 27. Nf1 Bxf3 28. gxf3 Qg5+ 29. Ng3 h5 30. f4 Qe7 31. Qa4 h4 32. Nf1 Qe6 33. Qxa5 Qxc4 34. Qa4 Qe6 35. Qa5 Bf8 36. Kh2 c4 37. Nd2 c3 38. Nb3 Qc6 39. Qe5 Qf3 40. Qd4 Qxf2+ 41. Kh1 Qf3+ 42. Kg1 Qg3+ 0-1

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.26"]
[Round "6"]
[White "Guerreiro, Heitor Koffermann"]
[Black "Miranda Fernandez, Marcos Manuel"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "1313"]
[BlackElo "1759"]
[PlyCount "28"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 f5 4. e3 Nf6 5. Be2 c6 6. Nbd2 Bd6 7. 0-0 0-0 8. b3 Nbd7 9. Ng5 Qe7 10. f4 Kh8 11. Bb2 h6 12. Ngf3 Ng4 13. Qc1 Nxe3 14. Re1 Bxf4 0-1

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.25"]
[Round "4"]
[White "Guerreiro, Heitor Koffermann"]
[Black "Melo, Igor De Souza"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "1313"]
[BlackElo "1749"]
[PlyCount "55"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Ndxb4 9. a3 b5 10. Qd1 Nd5 11. a4 b4 12. e4 Nf6 13. Qc2 Nxd4 14. Qxc4 Nxf3+ 15. Bxf3 a5 16. 0-0 0-0 17. Rc1 Bb7 18. Rd1 Qe7 19. Nd2 e5 20. Rac1 Rfc8 21. Nb3 c5 22. Bg2 Rc7 23. Qb5 Bxe4 24. Nxc5 Bxg2 25. Kxg2 Rac8 26. Nd3 Rxc1 27. Rxc1 Rxc1 28. Nxc1 1/2-1/2

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.24"]
[Round "2"]
[White "Guerreiro, Heitor Koffermann"]
[Black "Miranda, Marina Lima"]
[Result "1-0"]
[ECO "D01"]
[WhiteElo "1313"]
[BlackElo "1672"]
[PlyCount "106"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 Bf5 4. e3 e6 5. Bd3 Bxd3 6. cxd3 c5 7. dxc5 Bxc5 8. d4 Bd6 9. Nf3 Nbd7 10. 0-0 a6 11. a4 h6 12. Bh4 0-0 13. Qe2 Qb6 14. Bg3 Bxg3 15. hxg3 Rac8 16. Rfc1 Rc6 17. Na2 Ne4 18. Rxc6 Qxc6 19. Nb4 Qb6 20. Nd3 Rc8 21. Rc1 Rxc1+ 22. Nxc1 Qb4 23. Qc2 Qc4 24. Qxc4 dxc4 25. a5 b6 26. axb6 Nxb6 27. Kf1 Kf8 28. Ke2 Ke7 29. Nd2 Nxd2 30. Kxd2 Kd6 31. Ne2 f5 32. Kc3 Na4+ 33. Kc2 g5 34. Nc3 Nb6 35. f3 e5 36. Ne2 Nd5 37. Kd2 a5 38. dxe5+ Kxe5 39. Nc3 Nb6 40. e4 fxe4 41. Nxe4 Kd4 42. Nf6 Nd5 43. Nxd5 Kxd5 44. Ke3 a4 45. Kd2 Kd4 46. f4 gxf4 47. gxf4 Ke4 48. g3 h5 49. Kc3 h4 50. gxh4 Kxf4 51. Kxc4 Kg4 52. Kb4 Kxh4 53. Kxa4 Kg5 1-0

[Event "Florianopolis op 9th"]
[Site "Florianopolis"]
[Date "2023.01.23"]
[Round "1"]
[White "Caceres Benitez, Arturo Eduardo"]
[Black "Guerreiro, Heitor Koffermann"]
[Result "1-0"]
[ECO "B98"]
[WhiteElo "1944"]
[BlackElo "1313"]
[PlyCount "33"]
[EventDate "2023.01.23"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 0-0 9. 0-0-0 Nbd7 10. Bd3 Nc5 11. e5 dxe5 12. fxe5 Nfd7 13. Bxe7 Qxe7 14. Qf4 b5 15. Bxh7+ Kxh7 16. Nc6 Qe8 17. Qh4+ 1-0

[Event "Concordia op 6th"]
[Site "Concordia"]
[Date "2022.10.16"]
[Round "9"]
[White "Da Silva, Kauan Salvagni Tele"]
[Black "Guerreiro, Heitor Koffermann"]
[Result "1-0"]
[ECO "D04"]
[WhiteElo "1471"]
[BlackElo "1218"]
[PlyCount "88"]
[EventDate "2022.10.12"]
[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. Nf3 d5 3. e3 Bf5 4. Bd3 Bxd3 5. Qxd3 e6 6. 0-0 Bd6 7. b3 0-0 8. Bb2 Nbd7 9. Nbd2 c6 10. Ne5 Qc7 11. f4 c5 12. c4 a5 13. a4 Nb8 14. Rf3 Na6 15. Bc3 Nb4 16. Bxb4 cxb4 17. Rff1 Rac8 18. Rac1 Qd8 19. Rc2 Bc7 20. Rfc1 Qe7 21. c5 Bxe5 22. fxe5 Ng4 23. h3 Nh6 24. Nf3 Nf5 25. Kh2 Nh4 26. Nxh4 Qxh4 27. Qb5 Qd8 28. Qxb7 Qg5 29. Re1 Qf5 30. Rd2 Qg5 31. Qa6 Qh4 32. Qe2 Qd8 33. Rc1 Rc6 34. Rdc2 Qc7 35. Kh1 Rd8 36. Qg4 h6 37. Rf2 Rd7 38. Rf3 Qd8 39. Rg3 Qf8 40. Rf1 Kh8 41. Qh5 Rcc7 42. Rgf3 Kg8 43. h4 Qc8 44. g4 Kh7 1-0

[Event "Concordia op 6th"]
[Site "Concordia"]
[Date "2022.10.15"]
[Round "7"]
[White "Consoli, Anderson Luiz"]
[Black "Guerreiro, Heitor Koffermann"]
[Result "0-1"]
[ECO "C13"]
[WhiteElo "1516"]
[BlackElo "1218"]
[PlyCount "34"]
[EventDate "2022.10.12"]
[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. d4 Nf6 2. Nc3 d5 3. Nf3 e6 4. Bg5 Nbd7 5. e4 dxe4 6. Nxe4 Be7 7. Ng3 h6 8. Be3 0-0 9. Bd3 Nb6 10. 0-0 Nfd5 11. c4 Nxe3 12. fxe3 c5 13. Qc2 Bd7 14. Ng5 Bxg5 15. Ne4 f5 16. Nxg5 Qxg5 17. dxc5 Nc8 0-1

[Event "Concordia op 6th"]
[Site "Concordia"]
[Date "2022.10.15"]
[Round "8"]
[White "Guerreiro, Heitor Koffermann"]
[Black "Albiero, Marco Antonio Batis"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1218"]
[BlackElo "1584"]
[PlyCount "67"]
[EventDate "2022.10.12"]
[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. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 0-0 6. 0-0 b6 7. Nbd2 Bb7 8. b3 c5 9. Bb2 Nc6 10. Rc1 Rc8 11. dxc5 Bxc5 12. cxd5 Nxd5 13. Nc4 Qe7 14. Qc2 Rfd8 15. Rfd1 b5 16. Ncd2 Ba3 17. Qb1 Ba6 18. Bxa3 Qxa3 19. Ng5 g6 20. Nge4 Ncb4 21. Nc5 Nxa2 22. Qa1 Rxc5 23. Rxc5 Qxc5 24. Qxa2 Nc3 25. Qa5 Rd6 26. b4 Qe5 27. Re1 Rxd2 28. Qxa6 Rxe2 29. Rf1 Ra2 30. Qc8+ Kg7 31. Qd7 a5 32. bxa5 Rxa5 33. Qd2 Ra2 34. Re1 0-1

[Event "Concordia op 6th"]
[Site "Concordia"]
[Date "2022.10.14"]
[Round "5"]
[White "Devens, Bruno Vendrusculo"]
[Black "Guerreiro, Heitor Koffermann"]
[Result "1-0"]
[ECO "C30"]
[WhiteElo "1564"]
[BlackElo "1218"]
[PlyCount "49"]
[EventDate "2022.10.12"]
[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 e5 2. f4 Bc5 3. Nf3 d6 4. Nc3 Nc6 5. Bc4 Bg4 6. Bb5 Nge7 7. h3 Bxf3 8. Qxf3 0-0 9. Ne2 Nb4 10. Ba4 b5 11. Bb3 a6 12. d3 Nbc6 13. Be3 Bxe3 14. Qxe3 Na5 15. 0-0 c5 16. c3 Nxb3 17. axb3 Qc7 18. f5 d5 19. f6 d4 20. Qg5 Ng6 21. Ng3 gxf6 22. Rxf6 Kh8 23. Raf1 Nf4 24. R1xf4 exf4 25. Nh5 1-0

[Event "Concordia op 6th"]
[Site "Concordia"]
[Date "2022.10.14"]
[Round "6"]
[White "Guerreiro, Heitor Koffermann"]
[Black "Franca, Adilson Mendes"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "1218"]
[BlackElo "1800"]
[PlyCount "33"]
[EventDate "2022.10.12"]
[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. d4 e5 2. dxe5 Nc6 3. Nc3 Nxe5 4. e4 Nf6 5. Nf3 Bd6 6. Be2 0-0 7. 0-0 c6 8. Qxd6 Re8 9. Nxe5 Re6 10. Qd4 Qe7 11. f4 d6 12. Nf3 Nxe4 13. Bd3 c5 14. Qc4 Rf6 15. Qxe4 Qxe4 16. Nxe4 Rxf4 17. Bxf4 1-0

[Event "Concordia op 6th"]
[Site "Concordia"]
[Date "2022.10.13"]
[Round "4"]
[White "Guerreiro, Heitor Koffermann"]
[Black "Pavao, Alice Lara Biasi"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "1218"]
[BlackElo "1436"]
[PlyCount "64"]
[EventDate "2022.10.12"]
[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. d4 Nf6 2. Nc3 g6 3. e4 d6 4. Bg5 Bg7 5. e5 Ng4 6. h3 Nh6 7. Qd2 Ng8 8. f4 dxe5 9. fxe5 c5 10. Be3 cxd4 11. Bxd4 Nc6 12. Bb5 Bd7 13. Bxc6 Bxc6 14. Nf3 e6 15. 0-0-0 Ne7 16. Qf2 Qc7 17. Bxa7 Bxf3 18. Bb6 Qxe5 19. Qxf3 Nc6 20. Rhe1 Qf6 21. Qg3 0-0 22. Qd3 Nb4 23. Qd4 Qxd4 24. Bxd4 Bxd4 25. Rxd4 Nc6 26. Rd7 Rab8 27. Rf1 Ne5 28. Rdd1 Rfd8 29. a3 Nc4 30. Rxd8+ Rxd8 31. Rd1 Rxd1+ 32. Nxd1 Kf8 1/2-1/2

[Event "Concordia op 6th"]
[Site "Concordia"]
[Date "2022.10.13"]
[Round "3"]
[White "Kaori Shikasho, Kariny"]
[Black "Guerreiro, Heitor Koffermann"]
[Result "0-1"]
[ECO "C19"]
[WhiteElo "1802"]
[BlackElo "1218"]
[PlyCount "104"]
[EventDate "2022.10.12"]
[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 e6 2. Nc3 d5 3. d4 Bb4 4. Bd3 Ne7 5. a3 Bxc3+ 6. bxc3 c5 7. e5 Nbc6 8. Nf3 0-0 9. 0-0 Bd7 10. Bg5 Qc7 11. Rb1 Rab8 12. Bb5 a6 13. Bxe7 Nxe7 14. Bxd7 Qxd7 15. dxc5 Rfc8 16. Qd4 Nf5 17. Qb4 Qc7 18. Rb3 a5 19. Qb6 Qxc5 20. Qxc5 Rxc5 21. Rfb1 Rbc8 22. Rxb7 Rxc3 23. Rb8 Rxc2 24. Rxc8+ Rxc8 25. Kf1 h6 26. Rb5 a4 27. Ra5 Rc4 28. Nd2 Rd4 29. Ke2 f6 30. Ra8+ Kf7 31. Ra7+ Kg6 32. exf6 gxf6 33. Nb1 Rg4 34. Kf3 Rd4 35. Ke2 e5 36. Nc3 Nd6 37. Ra6 Nc4 38. Rxa4 Rd2+ 39. Ke1 Rd3 40. Nb5 Rb3 41. Rb4 Rxb4 42. axb4 d4 43. Ke2 Kf5 44. f3 Ke6 45. Kd3 Nd6 46. Nxd6 Kxd6 47. f4 Kd5 48. b5 e4+ 49. Ke2 d3+ 50. Ke3 h5 51. h3 h4 52. Kf2 Kc5 0-1

[Event "Concordia op 6th"]
[Site "Concordia"]
[Date "2022.10.12"]
[Round "1"]
[White "Becker, Rogerio Sperb"]
[Black "Guerreiro, Heitor Koffermann"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "2081"]
[BlackElo "1218"]
[PlyCount "57"]
[EventDate "2022.10.12"]
[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. g3 e6 3. Nf3 d5 4. Bg2 Be7 5. 0-0 0-0 6. Qc2 c6 7. b3 Na6 8. Bb2 Nb4 9. Qc1 c5 10. d4 b6 11. dxc5 bxc5 12. cxd5 exd5 13. a3 Na6 14. Nbd2 Rb8 15. Qc2 Qb6 16. Rac1 Be6 17. Rfd1 d4 18. b4 Rfc8 19. Qd3 Nc7 20. Ba1 Qb5 21. bxc5 Bxc5 22. Bxd4 Qxd3 23. exd3 Bxa3 24. Ra1 Nb5 25. Bxa7 Rb7 26. Nd4 Nxa7 27. Bxb7 Rc7 28. Rxa3 Rxb7 29. Rda1 1-0

[Event "Concordia op 6th"]
[Site "Concordia"]
[Date "2022.10.12"]
[Round "2"]
[White "Guerreiro, Heitor Koffermann"]
[Black "Spagnollo, Pedro Henrique"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1218"]
[BlackElo "1800"]
[PlyCount "30"]
[EventDate "2022.10.12"]
[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. d4 d5 2. c4 c6 3. Nf3 Bg4 4. g3 Nf6 5. Bg2 e6 6. Nbd2 Nbd7 7. 0-0 Bb4 8. Qb3 Bxd2 9. Bxd2 Qb6 10. Qxb6 Nxb6 11. cxd5 cxd5 12. Bg5 Bxf3 13. Bxf3 Ne4 14. Bxe4 dxe4 15. Rac1 0-0 1/2-1/2

