[Event "BRA-ch U16 9th"]
[Site "Campo Grande"]
[Date "1987.03.??"]
[Round "5"]
[White "Ogata, Nelson"]
[Black "Cohen, Jaime"]
[Result "1-0"]
[ECO "A47"]
[PlyCount "125"]
[EventDate "1987.03.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 e6 3. e3 Be7 4. Bd3 b6 5. Nbd2 Bb7 6. 0-0 d6 7. Re1 0-0 8. b3 c5 9. Bb2 Nc6 10. a3 Rc8 11. Rc1 Re8 12. Qe2 h6 13. c4 Bf8 14. Bb1 g6 15. Red1 Qe7 16. Ne4 Nxe4 17. Bxe4 Na5 18. Bxb7 Nxb7 19. d5 Bg7 20. Bxg7 Kxg7 21. dxe6 Qxe6 22. Rd3 a6 23. h3 b5 24. a4 bxa4 25. bxa4 Na5 26. Rd5 Rb8 27. Qd2 Nb7 28. Rb1 Qe4 29. Rb6 Kg8 30. Qc3 a5 31. Nd2 Qe7 32. Qb2 Qc7 33. Rb5 Re7 34. Nf1 Rbe8 35. Qd2 Re5 36. Rd3 R5e6 37. Rdb3 Nd8 38. Qxa5 Qxa5 39. Rxa5 Nc6 40. Rab5 Nb4 41. a5 Ra8 42. Ng3 Re7 43. Ra3 Rea7 44. Ne4 Nc6 45. Nxd6 Rxa5 46. Raxa5 Rxa5 47. Ne4 Ra4 48. Rxc5 Na5 49. Nd6 Kf8 50. Rc7 f5 51. g4 fxg4 52. hxg4 Nb3 53. Kg2 Ra6 54. Ne4 Ke8 55. c5 Kd8 56. Rb7 Na5 57. Rb6 Rxb6 58. cxb6 Nc4 59. b7 Kc7 60. Nc5 Na5 61. Kf3 Nc6 62. Ke4 Kb6 63. Kd5 1-0

[Event "BRA-ch U16 9th"]
[Site "Campo Grande"]
[Date "1987.03.??"]
[Round "1"]
[White "Ogata, Nelson"]
[Black "Hashizume, Marcelo"]
[Result "1-0"]
[ECO "D00"]
[PlyCount "71"]
[EventDate "1987.03.09"]
[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. Bg5 Bg7 4. Nc3 d5 5. e3 Bf5 6. Bd3 Bxd3 7. Qxd3 Nbd7 8. Bxf6 Nxf6 9. Qb5+ Qd7 10. Qxb7 0-0 11. Ne5 Qf5 12. Nd3 Qd7 13. Qa6 Ne4 14. Nxe4 dxe4 15. Nc5 Qg4 16. 0-0 f5 17. Ne6 Rf6 18. Qb7 Re8 19. Nxc7 Ref8 20. Qd5+ Kh8 21. Ne6 Rb8 22. Nxg7 Kxg7 23. b3 h5 24. Qe5 Rbf8 25. f3 Qg5 26. Qf4 Qxf4 27. exf4 e3 28. Rfe1 Rc8 29. c4 g5 30. Rxe3 Rd6 31. d5 Re8 32. Rae1 Kf7 33. fxg5 Ra6 34. g6+ Rxg6 35. Re6 Rxe6 36. Rxe6 1-0

[Event "BRA-ch U16 9th"]
[Site "Campo Grande"]
[Date "1987.03.??"]
[Round "3"]
[White "Ogata, Nelson"]
[Black "Souza, Marco Andre"]
[Result "1-0"]
[ECO "D04"]
[PlyCount "76"]
[EventDate "1987.03.09"]
[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 d5 2. Nf3 Nf6 3. e3 Bg4 4. Nbd2 e6 5. Bd3 Be7 6. c3 Nbd7 7. Qc2 c5 8. b3 Qc7 9. Bb2 Rc8 10. Rc1 a6 11. c4 cxd4 12. exd4 dxc4 13. bxc4 Qa5 14. 0-0 Qh5 15. Qa4 0-0 16. Ne5 Rfd8 17. Rfe1 Qh6 18. Nxg4 Nxg4 19. Nf3 Bd6 20. h3 Ngf6 21. Rb1 Nh5 22. Bc1 Bf4 23. Rxb7 Bxc1 24. Rxd7 Bd2 25. Rd1 Bf4 26. Rxd8+ Rxd8 27. Qxa6 Qf6 28. Qa5 g5 29. g3 Bxg3 30. Qxg5+ Qxg5 31. Nxg5 Bf4 32. Nf3 Kg7 33. Bc2 Bc7 34. Kf1 Nf4 35. Ng1 Ng6 36. Ne2 Ne7 37. Rb1 Nf5 38. Bxf5 exf5 1-0

[Event "BRA-ch U16 9th"]
[Site "Campo Grande"]
[Date "1987.03.??"]
[Round "2"]
[White "Rodrigues, Adriano Pfuhl"]
[Black "Ogata, Nelson"]
[Result "1/2-1/2"]
[ECO "A04"]
[PlyCount "34"]
[EventDate "1987.03.09"]
[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. Nf3 Nc6 3. d3 d6 4. g3 g6 5. Bg2 Bg7 6. c3 e6 7. 0-0 Nge7 8. Be3 0-0 9. d4 cxd4 10. cxd4 d5 11. e5 Nf5 12. Nc3 Nxe3 13. fxe3 Bd7 14. Qe2 a6 15. Rac1 Ne7 16. Rfd1 Bc6 17. g4 Qd7 1/2-1/2

[Event "BRA-ch U16 9th"]
[Site "Campo Grande"]
[Date "1987.03.??"]
[Round "4"]
[White "Watanabe, Roberto Tadashi"]
[Black "Ogata, Nelson"]
[Result "1/2-1/2"]
[ECO "C00"]
[PlyCount "38"]
[EventDate "1987.03.09"]
[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 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 b6 5. g3 Bb7 6. Qe2 Be7 7. e5 Nfd7 8. Bg2 c5 9. 0-0 Nc6 10. Re1 Qc7 11. Nf1 h6 12. h4 0-0-0 13. N1h2 Rdg8 14. c3 g5 15. hxg5 hxg5 16. Ng4 Nd8 17. d4 c4 18. b3 Ba6 19. Nd2 f5 1/2-1/2

[Event "BRA-ch U14 2nd"]
[Site "Guaruja"]
[Date "1985.07.??"]
[Round "2"]
[White "Costa, Emerson Luciano Men"]
[Black "Ogata, Nelson"]
[Result "0-1"]
[ECO "D20"]
[PlyCount "110"]
[EventDate "1985.07.05"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nc3 Nd7 4. Nf3 Nb6 5. e4 e6 6. d5 Bb4 7. a3 Bxc3+ 8. bxc3 exd5 9. exd5 Qxd5 10. Qd4 Qxd4 11. Nxd4 Nf6 12. a4 0-0 13. a5 Nbd5 14. Bxc4 Re8+ 15. Ne2 Nxc3 16. Bb2 Nxe2 17. Bxe2 Nd5 18. 0-0 Rxe2 19. Rad1 Rxb2 20. Rxd5 Be6 21. Rd4 Ra2 22. Rfd1 g6 23. h3 Rxa5 24. R1d3 c6 25. Rf3 Rf5 26. Rfd3 Rd5 27. g4 Rxd4 28. Rxd4 a5 29. Kf1 a4 30. f3 a3 31. h4 a2 32. Rd1 Bxg4 33. fxg4 a1R 34. Rxa1 Rxa1+ 35. Kf2 Ra4 36. Kg3 f6 37. h5 g5 38. Kf3 Rf4+ 39. Ke3 Rxg4 40. Kf3 f5 41. Ke3 Rh4 42. Kd3 Rxh5 43. Kd4 b6 44. Ke5 f4 45. Kf5 Kf7 46. Kg4 Rh3 47. Kxh3 h5 48. Kg2 g4 49. Kf2 h4 50. Kg2 h3+ 51. Kh2 Kg6 52. Kg1 g3 53. Kf1 f3 54. Ke1 h2 55. Kf1 h1R# 0-1

[Event "BRA-ch U14 2nd"]
[Site "Guaruja"]
[Date "1985.07.??"]
[Round "4"]
[White "Da Silva, Jefferson Rian Ferr"]
[Black "Ogata, Nelson"]
[Result "0-1"]
[ECO "C19"]
[PlyCount "156"]
[EventDate "1985.07.05"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qc7 7. Nf3 Ne7 8. Bd3 Nbc6 9. 0-0 b6 10. a4 Bd7 11. Be3 Na5 12. Ng5 h6 13. Qh5 g6 14. Qh4 Ng8 15. f4 c4 16. Be2 Bc6 17. f5 exf5 18. e6 fxe6 19. Bf4 Qe7 20. Be5 Rh7 21. Nf3 Qxh4 22. Nxh4 g5 23. Bh5+ Kd8 24. Ng6 Be8 25. h4 g4 26. Nf4 Bxh5 27. Nxh5 Nc6 28. Bd6 Kd7 29. Ba3 Rf7 30. Rae1 Nf6 31. Nxf6+ Rxf6 32. g3 h5 33. Bc1 Re8 34. Bf4 Rf7 35. Re2 Ne7 36. Be5 Ng8 37. Rfe1 Rh7 38. Kf2 Ne7 39. Bf4 Ng6 40. Bg5 Nh8 41. Bf4 Nf7 42. Rb1 Nd6 43. Bxd6 Kxd6 44. Re5 Ke7 45. Rb5 Kd6 46. Ke3 Rg8 47. Kf4 Rb7 48. Re1 a6 49. Rb4 Rgb8 50. Reb1 b5 51. a5 Re7 52. Re1 Rg7 53. Re5 Rf8 54. Rb1 Rgf7 55. Rb2 Ke7 56. Rb1 Kf6 57. Rbe1 Re7 58. Rb1 Rc8 59. Rb2 Rcc7 60. Rb1 b4 61. cxb4 c3 62. b5 axb5 63. Rxb5 Rb7 64. Rxb7 Rxb7 65. Re3 Rb4 66. Rd3 Ra4 67. a6 Rxa6 68. Rxc3 Ra4 69. Ke3 Rc4 70. Kd3 Rxc3+ 71. Kxc3 f4 72. Kd3 fxg3 73. Ke2 Kf5 74. Ke3 g2 75. Kf2 Ke4 76. c3 Kd3 77. Kxg2 Kxc3 78. Kg3 Kxd4 0-1

[Event "BRA-ch U14 2nd"]
[Site "Guaruja"]
[Date "1985.07.??"]
[Round "5"]
[White "Ogata, Nelson"]
[Black "Nishikado, Amilton"]
[Result "1/2-1/2"]
[ECO "B43"]
[PlyCount "115"]
[EventDate "1985.07.05"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Bd3 Nc6 7. Nb3 Nf6 8. Bg5 Be7 9. Qd2 b5 10. a3 Bb7 11. Bf4 d6 12. f3 0-0 13. 0-0 Rfd8 14. Rad1 Qb6+ 15. Be3 Qc7 16. Qf2 Nd7 17. Qg3 Nce5 18. f4 Nc4 19. Bxc4 bxc4 20. Nd4 Nc5 21. e5 dxe5 22. fxe5 Ne4 23. Nxe4 Bxe4 24. Qf2 Bg6 25. Nf3 Rab8 26. Rxd8+ Qxd8 27. c3 Qd7 28. Nd4 Qb7 29. Bc1 Bc5 30. Qg3 Qb6 31. Qf4 Rd8 32. Rd1 Bd3 33. Kh1 Bxd4 34. cxd4 Qxd4 35. Qxd4 Rxd4 36. Re1 Kf8 37. Bd2 Ke7 38. Bb4+ Kd7 39. Re3 Rf4 40. Rf3 Rxf3 41. gxf3 f6 42. Bf8 fxe5 43. Bxg7 e4 44. fxe4 Bxe4+ 45. Kg1 Kd6 46. Bc3 Bd3 47. Kf2 Kd5 48. Ke3 Kd6 49. Kf4 Ke7 50. Ke5 Kf7 51. Bd2 Be2 52. Be3 Bf3 53. Kd4 Bd5 54. Ke5 Kg6 55. Kf4 Kh5 56. Bf2 Kg6 57. Be3 Kf6 58. Bd4+ 1/2-1/2

[Event "BRA-ch U14 2nd"]
[Site "Guaruja"]
[Date "1985.07.??"]
[Round "1"]
[White "Ogata, Nelson"]
[Black "Oliveira, Ewerson"]
[Result "1-0"]
[ECO "B08"]
[PlyCount "57"]
[EventDate "1985.07.05"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be3 Nbd7 6. h3 c5 7. d5 a6 8. a4 b6 9. Qd2 h6 10. Bd3 g5 11. 0-0 0-0 12. Nh2 Qe8 13. f4 Nh7 14. fxg5 hxg5 15. Bxg5 f6 16. Bh6 Bxh6 17. Qxh6 Ne5 18. Be2 Qg6 19. Qxg6+ Nxg6 20. Ng4 Bxg4 21. Bxg4 Ne5 22. Bf5 Nc4 23. b3 Ne3 24. Be6+ Kh8 25. Rf2 Ng5 26. Re1 Nxe6 27. dxe6 Nxg2 28. Rxg2 Rab8 29. Nd5 1-0

[Event "BRA-ch U14 2nd"]
[Site "Guaruja"]
[Date "1985.07.??"]
[Round "3"]
[White "Ogata, Nelson"]
[Black "Watanabe, Roberto Tadashi"]
[Result "0-1"]
[ECO "A45"]
[PlyCount "56"]
[EventDate "1985.07.05"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 d6 3. Bxf6 gxf6 4. e3 Nc6 5. Nd2 e5 6. Nb3 Bd7 7. c3 Bg7 8. Bc4 Ne7 9. Nd2 d5 10. Bb3 c6 11. Ne2 Qc7 12. Bc2 0-0 13. 0-0 Ng6 14. Ng3 e4 15. c4 f5 16. f4 Kh8 17. Rc1 Qd6 18. Bb3 Ne7 19. c5 Qe6 20. Bc2 Bf6 21. Kh1 Rg8 22. Nh5 Rg6 23. Rf2 Rag8 24. Qe2 Rh6 25. Nxf6 Qxf6 26. Nf1 Qg7 27. Nd2 f6 28. Rg1 Rxh2+ 0-1

