[Event "Pan American-ch U20"]
[Site "Vila Santa Cecilia"]
[Date "2023.11.11"]
[Round "9.17"]
[White "De Mattos, Pedro Benedito Flor"]
[Black "Nascimento, Kaio Vinicius Da Tr"]
[Result "0-1"]
[ECO "C42"]
[BlackElo "1310"]
[PlyCount "54"]
[EventDate "2023.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nf6 7. 0-0 Be7 8. h3 0-0 9. Bf4 Nbd7 10. Re1 Re8 11. Nbd2 Nf8 12. c3 Ne6 13. Bh2 c6 14. Qc2 h6 15. Re2 Nf8 16. Rae1 Be6 17. Ne5 Bd6 18. Ndf3 Ne4 19. Bxe4 dxe4 20. Qxe4 Bxa2 21. Qc2 Be6 22. Re3 Qc7 23. Nd3 Bxh2+ 24. Nxh2 Red8 25. Nf3 Ng6 26. Nde5 Nf4 27. c4 Qc8 0-1

[Event "Pan American-ch U20"]
[Site "Vila Santa Cecilia"]
[Date "2023.11.10"]
[Round "7.17"]
[White "De Mattos, Pedro Benedito Flor"]
[Black "Da Fonseca Pinto, Joao Gabriel Alves"]
[Result "0-1"]
[ECO "C54"]
[BlackElo "1762"]
[PlyCount "92"]
[EventDate "2023.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. 0-0 a6 7. a4 0-0 8. h3 h6 9. Be3 Ba7 10. Nbd2 Be6 11. Re1 Ne7 12. Qc2 Ng6 13. d4 Nh5 14. Bf1 Nhf4 15. Kh2 Qc8 16. dxe5 dxe5 17. Nxe5 Nxg2 18. Bxg2 Nxe5 19. Bxa7 Rxa7 20. f4 Nc4 21. Nxc4 Bxc4 22. b3 Be6 23. f5 Bd7 24. Qf2 c5 25. Re3 f6 26. Rd3 b6 27. c4 Bc6 28. Rad1 Re7 29. Qh4 Rfe8 30. Re1 Qb7 31. Rde3 a5 32. Qh5 Qc7+ 33. Kg1 Rd8 34. Rd1 Red7 35. Rxd7 Qxd7 36. Qe2 Qd4 37. Kh2 Qe5+ 38. Kg1 Qa1+ 39. Kh2 Qb1 40. Bf3 Rd4 41. e5 Bxf3 42. Qxf3 fxe5 43. Rxe5 Rd2+ 44. Re2 Rxe2+ 45. Qxe2 Qxf5 46. Qe8+ Kh7 0-1

[Event "Pan American-ch U20"]
[Site "Vila Santa Cecilia"]
[Date "2023.11.09"]
[Round "6.15"]
[White "Seccafim, Caic Dos Santos"]
[Black "De Mattos, Pedro Benedito Flor"]
[Result "1-0"]
[ECO "C33"]
[WhiteElo "2062"]
[PlyCount "30"]
[EventDate "2023.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 Nf6 5. c3 d6 6. d3 Nc6 7. Nf3 Qh6 8. Qb3 g5 9. h4 Ne5 10. Nxg5 Nh5 11. Bxf7+ Nxf7 12. Nxf7 Ng3+ 13. Kg1 Qh5 14. Nxh8 Nxh1 15. Bxf4 Bg7 1-0

[Event "Pan American-ch U20"]
[Site "Vila Santa Cecilia"]
[Date "2023.11.08"]
[Round "4.15"]
[White "Cahuapaza Tarapaca, Leonardo"]
[Black "De Mattos, Pedro Benedito Flor"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "1818"]
[PlyCount "53"]
[EventDate "2023.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Nf6 3. Bb2 e6 4. e3 Be7 5. d4 0-0 6. Bd3 c5 7. 0-0 Nbd7 8. Nbd2 b6 9. Ne5 Bb7 10. f4 Nxe5 11. fxe5 Ne4 12. Nxe4 dxe4 13. Bc4 Bg5 14. Qe2 Qc7 15. a4 Rad8 16. Rfe1 Bd5 17. Bb5 Be7 18. Red1 cxd4 19. exd4 f6 20. c4 Bb7 21. d5 exd5 22. cxd5 Rxd5 23. Bc4 Rfd8 24. Qxe4 Qc6 25. Rxd5 Rxd5 26. Rd1 Kf8 27. Bxd5 1-0

[Event "Pan American-ch U20"]
[Site "Vila Santa Cecilia"]
[Date "2023.11.08"]
[Round "5.17"]
[White "De Mattos, Pedro Benedito Flor"]
[Black "Reimberg, Arthur Bernardo"]
[Result "1/2-1/2"]
[ECO "D00"]
[PlyCount "50"]
[EventDate "2023.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. d4 d5 2. Nc3 Nf6 3. Bf4 e6 4. e3 Bd6 5. Bg5 0-0 6. Nf3 h6 7. Bh4 c6 8. Bd3 Nbd7 9. 0-0 Re8 10. Re1 e5 11. dxe5 Nxe5 12. Nxe5 Bxe5 13. h3 Bd7 14. Qf3 Qc7 15. Rad1 Be6 16. Bg3 Bxg3 17. Qxg3 Qxg3 18. fxg3 Rad8 19. Ne2 c5 20. Bb5 Bd7 21. Bxd7 Rxd7 22. Nf4 d4 23. exd4 Rxe1+ 24. Rxe1 Rxd4 25. Re8+ Kh7 1/2-1/2

[Event "Pan American-ch U20"]
[Site "Vila Santa Cecilia"]
[Date "2023.11.07"]
[Round "3.18"]
[White "Andriska, Matheus Jose Amante"]
[Black "De Mattos, Pedro Benedito Flor"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1261"]
[PlyCount "92"]
[EventDate "2023.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bc4 Bc5 5. d3 h6 6. 0-0 0-0 7. Bd2 d6 8. h3 Be6 9. Nd5 Bxd5 10. Bxd5 Nxd5 11. exd5 Ne7 12. c4 c6 13. dxc6 Nxc6 14. Bc3 Qd7 15. a3 a5 16. Rb1 a4 17. b3 axb3 18. Qxb3 Rxa3 19. Qb2 Rfa8 20. Ra1 Rxa1 21. Rxa1 Rxa1+ 22. Qxa1 b6 23. Kf1 Kh7 24. Qb1 Nd4 25. Nxd4 exd4 26. Bd2 Qf5 27. Ke2 Qe5+ 28. Kf1 Qh2 29. Ke2 Qxg2 30. Bb4 Qxh3 31. Bxc5 bxc5 32. Qb6 Qe6+ 33. Kd2 Qf6 34. Ke2 h5 35. Qb1 h4 36. Qh1 g5 37. Kf1 Qf4 38. Kg1 Qc1+ 39. Kg2 Qxh1+ 40. Kxh1 f5 41. Kg2 Kg6 42. f3 g4 43. f4 Kf6 44. Kh2 Ke6 45. Kg2 d5 46. cxd5+ Kxd5 0-1

[Event "Pan American-ch U20"]
[Site "Vila Santa Cecilia"]
[Date "2023.11.06"]
[Round "2.18"]
[White "De Mattos, Pedro Benedito Flor"]
[Black "Reyes Zavaleta, Cristhian Yamil"]
[Result "0-1"]
[ECO "D35"]
[BlackElo "1804"]
[PlyCount "50"]
[EventDate "2023.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Nf3 0-0 6. e3 Nbd7 7. cxd5 exd5 8. Bd3 c6 9. 0-0 Re8 10. h3 Ne4 11. Bf4 f5 12. Qe2 Bf6 13. Rad1 Nf8 14. Qc2 g5 15. Bh2 Ng6 16. Rfe1 Qe7 17. Nd2 Qg7 18. Bxe4 fxe4 19. Nf1 Nh4 20. Kh1 g4 21. hxg4 Bxg4 22. Bg3 Nxg2 23. Kxg2 Bf3+ 24. Kg1 Qh6 25. Nh2 Qh3 0-1

[Event "Pan American-ch U20"]
[Site "Vila Santa Cecilia"]
[Date "2023.11.06"]
[Round "1.18"]
[White "Reyes Zavaleta, Fabian Ricardo"]
[Black "De Mattos, Pedro Benedito Flor"]
[Result "1-0"]
[ECO "E05"]
[WhiteElo "2122"]
[PlyCount "69"]
[EventDate "2023.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Be7 4. g3 Nf6 5. Bg2 0-0 6. 0-0 dxc4 7. Qc2 a6 8. a4 Nc6 9. Qxc4 Qd5 10. Nbd2 Rb8 11. Qc3 Bb4 12. Qd3 Qh5 13. Nc4 Rd8 14. Bf4 Nd5 15. Bg5 Be7 16. Bxe7 Ndxe7 17. Rfd1 b6 18. Rac1 Bb7 19. e4 Rbc8 20. h3 Nb4 21. Qe3 a5 22. Nfe5 Nec6 23. Nxc6 Nxc6 24. e5 Rb8 25. g4 Qh6 26. g5 Qh4 27. d5 exd5 28. Bxd5 g6 29. e6 Ba8 30. exf7+ Kf8 31. Bxc6 Bxc6 32. Qa3+ Kg7 33. Qc3+ Kf8 34. Qh8+ Kxf7 35. Ne5+ 1-0

