[Event "BRA-ch U26"]
[Site "Caioba"]
[Date "1993.08.??"]
[Round "2"]
[White "Barbosa, Ricardo Osaki"]
[Black "Leite, Erasmo Castro Jr"]
[Result "1/2-1/2"]
[ECO "A26"]
[PlyCount "50"]
[EventDate "1993.08.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 e5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. d3 Nge7 6. Nf3 0-0 7. 0-0 d6 8. Rb1 f5 9. Bd2 Kh8 10. Qc1 Be6 11. Bh6 Bxh6 12. Qxh6 Ng8 13. Qh4 Qxh4 14. Nxh4 Nf6 15. b4 Rab8 16. Nb5 Rf7 17. Bxc6 bxc6 18. Nxa7 Bd7 19. b5 Ra8 20. bxc6 Rxa7 21. cxd7 Nxd7 22. Rb2 Rf8 23. Nf3 Rfa8 24. Ra1 Kg7 25. a3 Nc5 1/2-1/2

[Event "BRA-ch U26"]
[Site "Caioba"]
[Date "1993.08.??"]
[Round "6"]
[White "Barbosa, Ricardo Osaki"]
[Black "Oliveira, Angela"]
[Result "1-0"]
[ECO "A15"]
[PlyCount "87"]
[EventDate "1993.08.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nf3 c6 5. d3 d6 6. Nc3 Nbd7 7. Bd2 Nb6 8. 0-0 0-0 9. Qc1 Re8 10. b4 a6 11. a3 Bd7 12. Rb1 Qc7 13. h3 Rab8 14. a4 c5 15. bxc5 dxc5 16. Bf4 e5 17. Nxe5 Rxe5 18. Bxe5 Qxe5 19. Rxb6 Qc7 20. Qb2 Be6 21. Rxb7 Rxb7 22. Qxb7 Qa5 23. Qb8+ Bf8 24. Qb3 Nd7 25. Rb1 Bd6 26. Ne4 Be7 27. Kh2 Bd8 28. Ra1 Nb6 29. Nd6 Nc8 30. Nb7 Qc7 31. Nxd8 Qxd8 32. Bb7 Qa5 33. Bxc8 Bxc8 34. Qb8 Qd8 35. Rb1 Qd7 36. Qa8 Qxh3+ 37. Kg1 Kg7 38. Rb8 Bg4 39. Rg8+ Kh6 40. Qf8+ Kh5 41. Qxc5+ f5 42. Rh8 Kh6 43. Qf8+ Kg5 44. Qe7+ 1-0

[Event "BRA-ch U26"]
[Site "Caioba"]
[Date "1993.08.??"]
[Round "4"]
[White "Barbosa, Ricardo Osaki"]
[Black "Valim, Luiz Claudio"]
[Result "1-0"]
[ECO "A22"]
[PlyCount "55"]
[EventDate "1993.08.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Bg2 Nc6 4. Nc3 Bb4 5. Nf3 0-0 6. Qc2 Re8 7. d3 d6 8. a3 Bxc3+ 9. Qxc3 e4 10. Nd4 exd3 11. Qxd3 Ne5 12. Qc2 c6 13. 0-0 d5 14. cxd5 cxd5 15. Bg5 Be6 16. Qb3 Nc6 17. Rfd1 h6 18. Nxe6 fxe6 19. Bxf6 Qxf6 20. Qxb7 Nd4 21. Qa6 Nc2 22. Rab1 Reb8 23. e4 Rb6 24. Qd3 Rxb2 25. exd5 Rab8 26. Rxb2 Rxb2 27. dxe6 Qxe6 28. Bd5 1-0

[Event "BRA-ch U26"]
[Site "Caioba"]
[Date "1993.08.??"]
[Round "7"]
[White "Barbosa, Ricardo Osaki"]
[Black "Vergara, Andre"]
[Result "1/2-1/2"]
[ECO "A15"]
[PlyCount "55"]
[EventDate "1993.08.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 c6 3. Bg2 d6 4. Nf3 Bg4 5. 0-0 Qc8 6. Qb3 b6 7. Nd4 Bh3 8. Qa4 Bxg2 9. Kxg2 g6 10. Nc3 Qd7 11. d3 Bg7 12. Bd2 0-0 13. b4 c5 14. Qxd7 Nbxd7 15. Nc6 Kh8 16. bxc5 dxc5 17. Nxe7 Rfe8 18. Nc6 Re6 19. Nxa7 Rxa7 20. Nb5 Rb7 21. Rae1 Ne8 22. a4 Nc7 23. Bc3 Nxb5 24. Bxg7+ Kxg7 25. axb5 Ra7 26. f4 Ra2 27. Kf3 Nf6 28. h3 1/2-1/2

[Event "BRA-ch U26"]
[Site "Caioba"]
[Date "1993.08.??"]
[Round "1"]
[White "Costa, Marco Antonio Jr"]
[Black "Barbosa, Ricardo Osaki"]
[Result "1-0"]
[ECO "B23"]
[PlyCount "77"]
[EventDate "1993.08.26"]
[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 e6 3. f4 d6 4. Nf3 Nc6 5. Bc4 Nf6 6. 0-0 Be7 7. d3 Na5 8. Bb3 a6 9. Qe1 b5 10. e5 Nxb3 11. cxb3 Nd5 12. Ne4 Nb4 13. Qg3 g6 14. Qf2 Bb7 15. exd6 Bxd6 16. Nxd6+ Qxd6 17. Be3 Rc8 18. Ne5 Nd5 19. Rae1 h5 20. Qh4 Qe7 21. Qh3 Nxe3 22. Rxe3 Qf6 23. Nf3 Bxf3 24. Qxf3 Qe7 25. Qe4 Qd7 26. f5 gxf5 27. Qxf5 Rc7 28. Qe5 Rh7 29. Qc3 Rc6 30. Rg3 Ke7 31. Rg7 Rxg7 32. Qxg7 Qe8 33. Qf6+ Kf8 34. Qh6+ Ke7 35. Qxh5 f5 36. Qg5+ Kd7 37. Rf3 Rd6 38. Rh3 Qf7 39. Rh8 1-0

[Event "BRA-ch U26"]
[Site "Caioba"]
[Date "1993.08.??"]
[Round "3"]
[White "Lupato, Volmir"]
[Black "Barbosa, Ricardo Osaki"]
[Result "1-0"]
[ECO "E62"]
[PlyCount "69"]
[EventDate "1993.08.26"]
[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 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. g3 e5 7. Bg2 Nc6 8. 0-0 Bg4 9. d5 Nd4 10. Qd3 Nxf3+ 11. Bxf3 Qd7 12. Bxg4 Qxg4 13. f3 Qd7 14. Be3 Nh5 15. Kg2 f5 16. b4 f4 17. Bg1 fxg3 18. hxg3 Qe7 19. Be3 Bf6 20. c5 Bg5 21. Qd2 Bxe3 22. Qxe3 dxc5 23. bxc5 g5 24. Rh1 Ng7 25. Rh6 Rf7 26. d6 Qd8 27. Nd5 cxd6 28. Rxd6 Qa5 29. Nf6+ Kh8 30. Qxg5 Qxc5 31. Rad1 Raf8 32. Nd7 Qa3 33. Nxf8 Qxf3+ 34. Kh3 Nh5 35. Ne6 1-0

[Event "BRA-ch U26"]
[Site "Caioba"]
[Date "1993.08.??"]
[Round "5"]
[White "Santos, Adriane"]
[Black "Barbosa, Ricardo Osaki"]
[Result "1/2-1/2"]
[ECO "A48"]
[PlyCount "36"]
[EventDate "1993.08.26"]
[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. Nf3 g6 3. c3 Bg7 4. Bf4 0-0 5. h3 d6 6. e3 c5 7. Nbd2 Nc6 8. Be2 b6 9. 0-0 Bb7 10. a3 Rc8 11. b4 cxd4 12. cxd4 Nd5 13. Bh2 Nc3 14. Qe1 Nxe2+ 15. Qxe2 Qd7 16. Qb5 Ne5 17. Qxd7 Nxd7 18. Rac1 b5 1/2-1/2

