[Event "BRA-ch U20 32th"]
[Site "Sao Paulo"]
[Date "2005.09.??"]
[Round "2"]
[White "Ayres, Jonathan"]
[Black "Orfao, Ronaldo Barros Jr"]
[Result "1/2-1/2"]
[ECO "B18"]
[PlyCount "67"]
[EventDate "2005.09.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. Bd3 Bxd3 8. Qxd3 e6 9. Be3 Ngf6 10. 0-0 Bd6 11. Rad1 Qc7 12. c4 0-0 13. Ne4 Bf4 14. Kh1 Rad8 15. b4 b6 16. Qc2 Bxe3 17. fxe3 Nxe4 18. Qxe4 Nf6 19. Qh4 h6 20. Ne5 c5 21. bxc5 bxc5 22. h3 Nd7 23. Nxd7 Rxd7 24. dxc5 Rxd1 25. Rxd1 Qxc5 26. Qd4 Rc8 27. Kg1 Qxd4 28. Rxd4 Kf8 29. Rd7 a5 30. Ra7 Rc5 31. Kf2 e5 32. Ke2 Rxc4 33. Rxa5 Rc2+ 34. Kf3 1/2-1/2

[Event "BRA-ch U20 32th"]
[Site "Sao Paulo"]
[Date "2005.09.??"]
[Round "9"]
[White "Oliveira, Renier"]
[Black "Orfao, Ronaldo Barros Jr"]
[Result "0-1"]
[ECO "A45"]
[PlyCount "86"]
[EventDate "2005.09.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c3 e6 3. e3 Be7 4. Bd3 0-0 5. Nf3 c5 6. 0-0 b6 7. b3 Bb7 8. Nbd2 d5 9. Bb2 Nbd7 10. Qc2 Rc8 11. Rfe1 Re8 12. Rad1 cxd4 13. exd4 Bd6 14. c4 Qe7 15. Qb1 Rc7 16. Re2 h6 17. Rde1 Nb8 18. Ne5 Nc6 19. cxd5 Nxd5 20. Bh7+ Kh8 21. Nxf7+ Qxf7 22. Bg6 Qf8 23. Bxe8 Qxe8 24. Rxe6 Re7 25. Rxe7 Ncxe7 26. Nf3 Bb4 27. Re5 Qd7 28. a3 Bd6 29. Rh5 Nf6 30. Rh3 Qe6 31. Ng5 Qg8 32. d5 Qxd5 33. Rxh6+ Kg8 34. Nf3 gxh6 35. Bxf6 Qf5 36. Qxf5 Nxf5 37. b4 Bxf3 38. gxf3 Kf7 39. Ba1 Ke6 40. Bb2 Be5 41. Bxe5 Kxe5 42. Kg2 Nd4 43. Kg3 Nc2 0-1

[Event "BRA-ch U20 32th"]
[Site "Sao Paulo"]
[Date "2005.09.??"]
[Round "7"]
[White "Orfao, Ronaldo Barros Jr"]
[Black "Crespo de Oliveira, Lucas"]
[Result "0-1"]
[ECO "D88"]
[PlyCount "64"]
[EventDate "2005.09.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 0-0 9. 0-0 Nc6 10. Be3 cxd4 11. cxd4 Na5 12. Bd3 b6 13. Qd2 Bb7 14. Bh6 e6 15. Bxg7 Kxg7 16. Rac1 Qe7 17. Rc2 Rac8 18. Rxc8 Bxc8 19. Qc3 Bb7 20. Nf4 Kg8 21. d5 Qg5 22. d6 Qxf4 23. Qc7 Kg7 24. Qc3+ Qf6 25. e5 Qd8 26. Bb5 a6 27. Ba4 b5 28. Bd1 Bc6 29. Qc5 Qg5 30. f3 Qd2 31. Bb3 Qg5 32. g3 Qd2 0-1

[Event "BRA-ch U20 32th"]
[Site "Sao Paulo"]
[Date "2005.09.??"]
[Round "5"]
[White "Orfao, Ronaldo Barros Jr"]
[Black "Di Girolamo, Aleandro"]
[Result "1/2-1/2"]
[ECO "D50"]
[PlyCount "146"]
[EventDate "2005.09.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. Bg5 Nbd7 6. e3 Qc7 7. cxd5 Nxd5 8. Be2 Qa5 9. Qb3 N7b6 10. 0-0 Bd7 11. Bh4 Rc8 12. Nxd5 Nxd5 13. Ne5 Qc7 14. Bf3 f6 15. Bxd5 exd5 16. Nxd7 Qxd7 17. dxc5 Bxc5 18. Rfc1 d4 19. exd4 Bxd4 20. Qd3 Rd8 21. Qe2+ Kf7 22. Bg3 Rhe8 23. Qc4+ Qd5 24. Qxd5+ Rxd5 25. Kf1 Red8 26. Rab1 Be5 27. Bxe5 Rxe5 28. Re1 Rxe1+ 29. Rxe1 Rd5 30. Rc1 Re5 31. b3 Rb5 32. g4 g5 33. f3 Kg6 34. Rc4 Rd5 35. Rc2 h5 36. h3 Rd3 37. Kg2 b5 38. Rb2 hxg4 39. hxg4 f5 40. gxf5+ Kxf5 41. Rc2 Kf4 42. Rf2 Ke3 43. Kg3 Rd4 44. Rc2 Rf4 45. Rc3+ Kd4 46. Rc7 b4 47. Rxa7 Rf5 48. Rc7 Ke3 49. Re7+ Kd4 50. Rc7 Ke3 51. Re7+ Kd4 52. Rc7 Kd5 53. Kg4 Rf4+ 54. Kg3 Kd4 55. Rc8 Kd3 56. Rc5 Ke3 57. Re5+ Kd3 58. Rxg5 Rd4 59. Rc5 Rd6 60. f4 Ke4 61. Ra5 Rg6+ 62. Rg5 Ra6 63. Rg4 Rxa2 64. f5+ Kxf5 65. Kf3 Rd2 66. Ke3 Rd6 67. Rf4+ Ke5 68. Re4+ Kf6 69. Rxb4 Re6+ 70. Kd4 Ke7 71. Rb7+ Kd8 72. b4 Kc8 73. Rh7 Kb8 1/2-1/2

[Event "BRA-ch U20 32th"]
[Site "Sao Paulo"]
[Date "2005.09.??"]
[Round "3"]
[White "Orfao, Ronaldo Barros Jr"]
[Black "Rocha, Robson Douglas"]
[Result "0-1"]
[ECO "E47"]
[PlyCount "112"]
[EventDate "2005.09.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 b6 6. Nge2 Bb7 7. 0-0 c5 8. a3 Bxc3 9. Nxc3 d6 10. Qc2 Nbd7 11. Rd1 Qe7 12. b4 Rac8 13. Qb3 e5 14. bxc5 dxc5 15. d5 e4 16. Bc2 Rfe8 17. Bb2 a6 18. a4 Rb8 19. Qa2 Nf8 20. Ba3 Qc7 21. Ne2 Bc8 22. Ng3 Bg4 23. Rdb1 Bd7 24. Bb2 Ng4 25. Qa3 f5 26. h3 Ne5 27. Bxe5 Qxe5 28. Qb2 Ng6 29. Bd1 Qxb2 30. Rxb2 Ne5 31. Be2 Kf7 32. Kf1 Rb7 33. Rab1 Reb8 34. Ke1 g6 35. a5 b5 36. cxb5 axb5 37. a6 Rb6 38. a7 Ra8 39. Bxb5 Bxb5 40. Rxb5 Rxb5 41. Rxb5 Rxa7 42. Nf1 Rd7 43. Ke2 Rxd5 44. Rb7+ Rd7 45. Rxd7+ Nxd7 46. f3 exf3+ 47. gxf3 Ke6 48. Kd3 Ne5+ 49. Ke2 Kd5 50. Nd2 c4 51. Nb1 g5 52. Nc3+ Kc5 53. e4 f4 54. Nd5 Kd4 55. h4 h6 56. hxg5 hxg5 0-1

[Event "BRA-ch U20 32th"]
[Site "Sao Paulo"]
[Date "2005.09.??"]
[Round "1"]
[White "Orfao, Ronaldo Barros Jr"]
[Black "Wilhelms, Diego Lima"]
[Result "0-1"]
[ECO "D13"]
[BlackElo "2201"]
[PlyCount "46"]
[EventDate "2005.09.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. cxd5 cxd5 5. Nf3 Nc6 6. Bg5 Ne4 7. e3 Bg4 8. Bf4 e6 9. Be2 Bb4 10. Qb3 0-0 11. h3 Bh5 12. Nd2 Nxd2 13. Kxd2 Bg6 14. Bd3 e5 15. Bxe5 Nxe5 16. dxe5 d4 17. Qxb4 dxe3+ 18. Ke1 Qxd3 19. Rd1 Qc2 20. fxe3 Qxg2 21. Rf1 Qg3+ 22. Rf2 Qg1+ 23. Ke2 Bh5+ 0-1

[Event "BRA-ch U20 32th"]
[Site "Sao Paulo"]
[Date "2005.09.??"]
[Round "6"]
[White "Pereira, Erbert Santos"]
[Black "Orfao, Ronaldo Barros Jr"]
[Result "1/2-1/2"]
[ECO "B19"]
[PlyCount "68"]
[EventDate "2005.09.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Ngf6 11. Bd2 Qc7 12. 0-0-0 e6 13. Ne4 0-0-0 14. c4 Nxe4 15. Qxe4 Nf6 16. Qe2 Bd6 17. Bc3 Qe7 18. a3 Rhe8 19. Ne5 Nd7 20. f4 c5 21. Rh3 cxd4 22. Bxd4 Nxe5 23. Bxe5 Bxe5 24. Qxe5 Rxd1+ 25. Kxd1 f6 26. Qe4 Rd8+ 27. Ke2 Rd6 28. Rd3 Kc7 29. g4 a5 30. b4 Rxd3 31. Kxd3 axb4 32. axb4 Qxb4 33. Qxe6 Qb1+ 34. Kd4 Qd1+ 1/2-1/2

[Event "BRA-ch U20 32th"]
[Site "Sao Paulo"]
[Date "2005.09.??"]
[Round "8"]
[White "Sousa, Matheus Mazim"]
[Black "Orfao, Ronaldo Barros Jr"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "50"]
[EventDate "2005.09.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. Nc3 d5 6. d4 c6 7. Bg5 Nbd7 8. e3 Ne4 9. Ne5 Nxc3 10. bxc3 f6 11. Nxd7 Bxd7 12. Bxf6 exf6 13. Qd3 Bf5 14. e4 dxe4 15. Bxe4 Bxe4 16. Qxe4 Qd5 17. Qd3 f5 18. Rad1 Rad8 19. Rb1 b6 20. Rb2 f4 21. Qa6 fxg3 22. hxg3 Rf5 23. Qxa7 Rh5 24. f3 Bxd4+ 25. Kg2 Bc5 0-1

[Event "BRA-ch U20 32th"]
[Site "Sao Paulo"]
[Date "2005.09.??"]
[Round "4"]
[White "Wozniak, Diego Estanislau"]
[Black "Orfao, Ronaldo Barros Jr"]
[Result "1-0"]
[ECO "B12"]
[PlyCount "51"]
[EventDate "2005.09.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 h5 5. Bd3 Bxd3 6. Qxd3 e6 7. Bg5 Qb6 8. b3 c5 9. Nf3 Nc6 10. c3 Rc8 11. dxc5 Bxc5 12. 0-0 Qc7 13. Re1 Nge7 14. b4 Bb6 15. a4 a6 16. Nbd2 Ng6 17. Qe2 d4 18. Nc4 Kf8 19. b5 Na5 20. Nd6 dxc3 21. Nxc8 Qxc8 22. Rac1 Nb3 23. Rc2 Nd4 24. Nxd4 Bxd4 25. Rd1 Bb6 26. bxa6 1-0

