[Event "Cidreira op"]
[Site "Cidreira"]
[Date "2025.05.04"]
[Round "7"]
[White "Valle, Arthur Osiris Do"]
[Black "Seefeld Braun, Mateus"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1763"]
[BlackElo "1800"]
[PlyCount "54"]
[EventDate "2025.05.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CB19_2025"]
[SourceDate "2025.05.07"]
[SourceVersion "1"]
[SourceVersionDate "2025.05.07"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 f6 5. Bf4 Nc6 6. Nf3 fxe5 7. Nxe5 Nf6 8. Bb5 Bd6 9. Nxc6 Qc7 10. Bxd6 Qxd6 11. Ne5+ Bd7 12. Nxd7 Nxd7 13. Bxd7+ Qxd7 14. 0-0 0-0 15. Nd2 Rf6 16. Rb1 Qf7 17. dxc5 Rc8 18. b4 Rf8 19. Nf3 Qh5 20. c4 Rh6 21. h3 Rg6 22. b5 Qxf3 23. Qxf3 Rxf3 24. c6 bxc6 25. bxc6 Rxh3 26. c7 Rhh6 27. c8Q+ Kf7 1-0

[Event "Cidreira op"]
[Site "Cidreira"]
[Date "2025.05.03"]
[Round "5"]
[White "Abdalla, Umar Mohammad"]
[Black "Seefeld Braun, Mateus"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1611"]
[BlackElo "1800"]
[PlyCount "39"]
[EventDate "2025.05.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CB19_2025"]
[SourceDate "2025.05.07"]
[SourceVersion "1"]
[SourceVersionDate "2025.05.07"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nc6 5. Bb5 Nf6 6. h3 Bd7 7. 0-0 Bd6 8. Re1+ Be6 9. c4 dxc4 10. Bxc4 Qd7 11. d5 0-0 12. dxe6 Qd8 13. exf7+ Kh8 14. Nc3 Qd7 15. Be6 Qd8 16. Bg5 Qb8 17. Bxf6 gxf6 18. Nd5 Bb4 19. Nxb4 Nxb4 20. Qd4 1-0

[Event "Cidreira op"]
[Site "Cidreira"]
[Date "2025.05.03"]
[Round "6"]
[White "Seefeld Braun, Mateus"]
[Black "De Freitas, Anthony Vargas"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "1800"]
[BlackElo "1800"]
[PlyCount "50"]
[EventDate "2025.05.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CB19_2025"]
[SourceDate "2025.05.07"]
[SourceVersion "1"]
[SourceVersionDate "2025.05.07"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 h6 3. Bh4 Nc6 4. Nf3 d5 5. Nc3 Bg4 6. e3 e6 7. Be2 Qd6 8. Qd3 0-0-0 9. 0-0-0 Nb4 10. Qd2 Be7 11. Nb5 Qa6 12. Nc3 Nxa2+ 13. Kb1 Nxc3+ 14. Qxc3 Qxe2 15. Rde1 Ne4 16. Rxe2 Nxc3+ 17. bxc3 Bxh4 18. Nxh4 Bxe2 19. Re1 Bc4 20. Nf3 Rd6 21. Ne5 Rb6+ 22. Kc1 Ba2 23. Nxf7 Rf8 24. Ne5 Rxf2 25. Rg1 Rb1# 0-1

[Event "Cidreira op"]
[Site "Cidreira"]
[Date "2025.05.02"]
[Round "3"]
[White "Dos Santos, Celso Freire"]
[Black "Seefeld Braun, Mateus"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "1488"]
[BlackElo "1800"]
[PlyCount "91"]
[EventDate "2025.05.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CB19_2025"]
[SourceDate "2025.05.07"]
[SourceVersion "1"]
[SourceVersionDate "2025.05.07"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. exd5 exd5 4. Nf3 Nc6 5. g3 Nf6 6. Bg2 Bg4 7. 0-0 g6 8. Bg5 Bg7 9. Re1+ Be6 10. Nc3 Qd7 11. Bh3 Qd6 12. Nb5 Qd7 13. Qe2 0-0 14. Bxe6 fxe6 15. Qxe6+ Qxe6 16. Rxe6 Rae8 17. Rae1 Rxe6 18. Rxe6 Re8 19. Nxc7 Rxe6 20. Nxe6 Nb4 21. Ne1 Nxa2 22. f3 Kf7 23. Nd8+ Ke7 24. Nxb7 h6 25. Bxf6+ Bxf6 26. c3 Nc1 27. d4 Bg5 28. f4 Bf6 29. Nc5 Kd6 30. Kf2 Kc6 31. Ke3 Be7 32. Kd2 Bxc5 33. Kxc1 Be7 34. Nf3 a5 35. b3 Ba3+ 36. Kc2 Kb5 37. Ne5 g5 38. f5 a4 39. b4 Bxb4 40. cxb4 Kxb4 41. f6 a3 42. f7 a2 43. f8Q+ Ka4 44. Nc6 Kb5 45. Qc5+ Ka4 46. Qb4# 1-0

[Event "Cidreira op"]
[Site "Cidreira"]
[Date "2025.05.02"]
[Round "4"]
[White "Seefeld Braun, Mateus"]
[Black "Conor, Larissa dos Anjos"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1800"]
[BlackElo "1690"]
[PlyCount "73"]
[EventDate "2025.05.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CB19_2025"]
[SourceDate "2025.05.07"]
[SourceVersion "1"]
[SourceVersionDate "2025.05.07"]
[SourceQuality "1"]

1. d4 e6 2. Nc3 d5 3. Nf3 c5 4. e3 Nc6 5. b3 Qa5 6. Bb2 Nf6 7. Qd2 Bd6 8. Na4 Ne4 9. Qxa5 Nxa5 10. Bb5+ Ke7 11. Bd3 Rd8 12. Bxe4 dxe4 13. Nd2 Nc6 14. 0-0-0 Kf8 15. Nxe4 Be7 16. Naxc5 b6 17. Nd3 Ba6 18. h4 Rac8 19. g4 Rd5 20. c4 Ra5 21. Kb1 Rb8 22. Bc3 Bb4 23. Bxb4+ Nxb4 24. Nxb4 Bb7 25. d5 b5 26. Nc3 Rc8 27. Rd4 e5 28. Rd3 bxc4 29. bxc4 Rxc4 30. Nc2 e4 31. Rdd1 Rxc3 32. d6 Rac5 33. d7 g6 34. d8Q+ Kg7 35. g5 Rxc2 36. Qf6+ Kg8 37. Rd8# 1-0

[Event "Cidreira op"]
[Site "Cidreira"]
[Date "2025.05.01"]
[Round "1"]
[White "Conor, Gilberto Bordignon"]
[Black "Seefeld Braun, Mateus"]
[Result "1-0"]
[ECO "C44"]
[WhiteElo "1813"]
[BlackElo "1800"]
[PlyCount "35"]
[EventDate "2025.05.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CB19_2025"]
[SourceDate "2025.05.07"]
[SourceVersion "1"]
[SourceVersionDate "2025.05.07"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 d6 4. d4 f6 5. dxe5 fxe5 6. Ng5 Na5 7. Bxg8 Rxg8 8. Qd5 Qf6 9. Qxg8 Qh6 10. Qf7+ Kd8 11. Qxf8+ Kd7 12. Qf7+ Kd8 13. 0-0 Nc6 14. Nc3 Nb4 15. f4 Nxc2 16. fxe5 Nxa1 17. e6 Bxe6 18. Nxe6+ 1-0

[Event "Cidreira op"]
[Site "Cidreira"]
[Date "2025.05.01"]
[Round "2"]
[White "Seefeld Braun, Mateus"]
[Black "Vieira, Roger Amorin"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1800"]
[BlackElo "1679"]
[PlyCount "79"]
[EventDate "2025.05.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CB19_2025"]
[SourceDate "2025.05.07"]
[SourceVersion "1"]
[SourceVersionDate "2025.05.07"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. e3 Bg7 4. c3 0-0 5. Nf3 d6 6. Nbd2 b6 7. Bd3 e5 8. Bg3 Re8 9. Qe2 e4 10. Bxe4 Nxe4 11. Nxe4 Rxe4 12. 0-0 Re8 13. Bh4 Qd7 14. Ng5 h6 15. Qf3 d5 16. Nxf7 Qxf7 17. Qxf7+ Kxf7 18. c4 Ba6 19. Rfc1 dxc4 20. Rc2 Nd7 21. Rac1 Nf6 22. Bxf6 Bxf6 23. b3 b5 24. h3 Rac8 25. Kh2 c5 26. dxc5 Rxc5 27. bxc4 bxc4 28. Rd2 Rd8 29. Rxd8 Bxd8 30. Rd1 Ke7 31. g4 c3 32. Rc1 c2 33. f4 Ba5 34. Kg3 Bd2 35. Rxc2 Rxc2 36. h4 Bxe3 37. g5 hxg5 38. fxg5 Rxa2 39. h5 gxh5 40. Kf3 0-1

