[Event "BRA-ch U26"]
[Site "Goiania"]
[Date "2017.10.22"]
[Round "7"]
[White "Da Costa, Roberto Rodrigues G"]
[Black "Okada, William Kenji"]
[Result "0-1"]
[ECO "B80"]
[BlackElo "1790"]
[PlyCount "104"]
[EventDate "2017.10.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a4 e6 7. g3 Be7 8. Bg2 0-0 9. 0-0 Nc6 10. Be3 Bd7 11. Nb3 Qc7 12. a5 Ne5 13. Bb6 Qc8 14. Bd4 Nc4 15. Na4 Bc6 16. Re1 Bd8 17. Bc3 e5 18. Bf1 b5 19. axb6 Nxb6 20. Nxb6 Bxb6 21. Bd3 Qe6 22. Qf3 d5 23. exd5 Bxd5 24. Qf5 Rfe8 25. Rxe5 Qxf5 26. Rxf5 Be6 27. Re5 Bxf2+ 28. Kg2 Bb6 29. Rxa6 Rxa6 30. Rxe6 Rxe6 31. Bxa6 Ng4 32. Bc8 Ne3+ 33. Kf3 Re8 34. Bd7 Rd8 35. Ba4 Nxc2 36. Nc5 Nd4+ 37. Bxd4 Rxd4 38. Nd7 Rxa4 39. Nxb6 Rb4 40. Nd5 Rxb2 41. h4 h5 42. Kf4 g6 43. g4 Rd2 44. Nf6+ Kg7 45. g5 Rf2+ 46. Ke4 Rf5 47. Ke3 Rxf6 48. gxf6+ Kxf6 49. Kf4 Ke6 50. Ke4 f5+ 51. Kf4 Kf6 52. Kf3 Ke5 0-1

[Event "BRA-ch U26"]
[Site "Goiania"]
[Date "2017.10.22"]
[Round "6"]
[White "Okada, William Kenji"]
[Black "Awoki, Daniel Teidi"]
[Result "0-1"]
[ECO "D15"]
[WhiteElo "1790"]
[BlackElo "2057"]
[PlyCount "75"]
[EventDate "2017.10.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 dxc4 5. e3 b5 6. a4 b4 7. Na2 a5 8. Bxc4 Bg4 9. Bxf7+ Kxf7 10. Ne5+ Ke8 11. Nxg4 Qd5 12. 0-0 Nbd7 13. Nxf6+ Nxf6 14. Re1 Rd8 15. b3 e5 16. Bb2 e4 17. Nc1 Bd6 18. Ne2 g5 19. Rc1 h5 20. Qc2 Kd7 21. Qc4 h4 22. Qa6 Rc8 23. Red1 h3 24. Ng3 hxg2 25. Qe2 Qe6 26. f4 Qh3 27. Qxg2 Qxg2+ 28. Kxg2 Ng4 29. Rh1 Nxe3+ 30. Kf2 Ng4+ 31. Kg2 Ne3+ 32. Kf2 Bxf4 33. Rce1 Ng4+ 34. Kg2 e3 35. Bc1 Nf2 36. Rhf1 Nd3 37. Re2 Rce8 38. Rf3 0-1

[Event "BRA-ch U26"]
[Site "Goiania"]
[Date "2017.10.21"]
[Round "5"]
[White "Dias da Fonseca, Petrus Fay"]
[Black "Okada, William Kenji"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1881"]
[BlackElo "1790"]
[PlyCount "96"]
[EventDate "2017.10.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 Nf6 4. Bc4 e6 5. d3 Be7 6. Nf3 0-0 7. 0-0 Nc6 8. a4 a6 9. Qe1 Nd4 10. Nxd4 cxd4 11. Nd1 d5 12. Bb3 dxe4 13. dxe4 Bd7 14. Nf2 Bc6 15. Bd2 Bc5 16. e5 Nd5 17. Nd3 Ba7 18. Rf3 Ne3 19. Rg3 Rc8 20. Qe2 Be4 21. Rc1 Qh4 22. Qf2 Ng4 23. Rxg4 Qxg4 24. Re1 Qg6 25. Qe2 Bc6 26. g4 Rfd8 27. h4 h5 28. f5 exf5 29. Bg5 Bd5 30. gxf5 Qxf5 31. Bxd5 Rxd5 32. Qxh5 Rc6 33. Rf1 Qd7 34. Qe2 Re6 35. Qf2 b5 36. axb5 Rxb5 37. Qg3 Bb8 38. Bf6 Rxf6 39. Rxf6 Qe7 40. Rxa6 Bxe5 41. Qg4 Bf6 42. Ra1 Bxh4 43. Qxd4 Bf6 44. Qf4 Rg5+ 45. Kf2 Qb7 46. Qf3 Bd4+ 47. Ke2 Rg2+ 48. Nf2 Rxf2+ 0-1

[Event "BRA-ch U26"]
[Site "Goiania"]
[Date "2017.10.21"]
[Round "4"]
[White "Okada, William Kenji"]
[Black "De Goes, Arthur Vinicius Per"]
[Result "1-0"]
[ECO "A62"]
[WhiteElo "1790"]
[PlyCount "33"]
[EventDate "2017.10.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. g3 g6 7. Bg2 Bg7 8. Nf3 0-0 9. 0-0 Bf5 10. Re1 Re8 11. Nd2 Nbd7 12. e4 Nxe4 13. Ndxe4 Nf6 14. Bg5 h6 15. Nxf6+ Bxf6 16. Rxe8+ Qxe8 17. Bxf6 1-0

[Event "BRA-ch U26"]
[Site "Goiania"]
[Date "2017.10.20"]
[Round "2"]
[White "Okada, William Kenji"]
[Black "Ferreira, Thales Bond Dias"]
[Result "1-0"]
[ECO "D74"]
[WhiteElo "1790"]
[PlyCount "51"]
[EventDate "2017.10.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d5 6. cxd5 Nxd5 7. 0-0 c6 8. Nc3 Nxc3 9. bxc3 c5 10. Ba3 cxd4 11. cxd4 Nc6 12. e3 Re8 13. Rc1 e6 14. Nd2 Bd7 15. Ne4 Qa5 16. Qb3 f5 17. Nd6 Reb8 18. Nxb7 Qa6 19. Bxc6 Bxc6 20. Qxe6+ Kh8 21. Nd6 Bf8 22. Nf7+ Kg7 23. Bxf8+ Kxf8 24. Rxc6 Qxf1+ 25. Kxf1 Rb1+ 26. Kg2 1-0

[Event "BRA-ch U26"]
[Site "Goiania"]
[Date "2017.10.20"]
[Round "3"]
[White "Souza dos Santos, Matheus Garcett"]
[Black "Okada, William Kenji"]
[Result "1-0"]
[ECO "B88"]
[WhiteElo "1925"]
[BlackElo "1790"]
[PlyCount "147"]
[EventDate "2017.10.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Be7 8. Be3 Nc6 9. f4 0-0 10. f5 Nxd4 11. Bxd4 exf5 12. exf5 Bxf5 13. Qf3 Qc8 14. 0-0 Bg6 15. Rad1 b5 16. Nd5 Nxd5 17. Bxd5 Rb8 18. Ba7 Bf6 19. Bxb8 Qxb8 20. c3 b4 21. cxb4 Bxb2 22. Qb3 Be5 23. Rc1 h6 24. Kh1 Qd8 25. g3 Qb6 26. a3 Qd4 27. Bg2 Qb6 28. Rc6 Qb5 29. a4 Qe2 30. Qf3 Qb2 31. Rxa6 Qxb4 32. Ra8 Rxa8 33. Qxa8+ Kh7 34. a5 Bd3 35. Rd1 Bc2 36. Rc1 Bb2 37. Qc6 Bg6 38. Rd1 Qxa5 39. Qxd6 Qa4 40. Rf1 Qc4 41. Qf4 Qe6 42. Qd2 Qb3 43. Qe2 Qb4 44. Rf4 Qc3 45. Be4 Qc1+ 46. Kg2 Bf6 47. Bxg6+ fxg6 48. Rc4 Qb1 49. Qc2 Qxc2+ 50. Rxc2 g5 51. Kf3 Kg6 52. g4 h5 53. h3 hxg4+ 54. hxg4 Kh6 55. Rc6 Kh7 56. Ke4 Kh6 57. Kf5 Kh7 58. Rc1 Bd4 59. Rh1+ Kg8 60. Kg6 Bf6 61. Rb1 Kf8 62. Rb8+ Ke7 63. Rb6 Ke8 64. Re6+ Kf8 65. Re4 Bd8 66. Ra4 Bf6 67. Ra7 Ke8 68. Rf7 Be5 69. Rb7 Bf6 70. Kf5 Kd8 71. Ke6 Kc8 72. Rf7 Kd8 73. Rf8+ Kc7 74. Rxf6 1-0

[Event "BRA-ch U26"]
[Site "Goiania"]
[Date "2017.10.19"]
[Round "1"]
[White "Martins, Anderson Donay"]
[Black "Okada, William Kenji"]
[Result "1-0"]
[ECO "B95"]
[WhiteElo "2072"]
[BlackElo "1790"]
[PlyCount "43"]
[EventDate "2017.10.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Qd2 Be7 8. 0-0-0 0-0 9. f4 Qc7 10. Bd3 h6 11. Bxf6 Bxf6 12. Nde2 b5 13. Rdg1 b4 14. Nd1 e5 15. g4 exf4 16. Nxf4 Bb7 17. h4 Qe7 18. g5 Bd4 19. gxh6 Bxg1 20. Rxg1 Qxh4 21. Rxg7+ Kh8 22. Rxf7 1-0

[Event "Goiania zt"]
[Site "Goiania"]
[Date "2017.08.20"]
[Round "6"]
[White "Campos, Otavio Moraes"]
[Black "Okada, William Kenji"]
[Result "0-1"]
[ECO "E67"]
[WhiteElo "1722"]
[BlackElo "1819"]
[PlyCount "68"]
[EventDate "2017.08.18"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 0-0 5. Bg2 d6 6. Nc3 Nbd7 7. 0-0 e5 8. e3 c6 9. Qc2 Re8 10. b3 Nf8 11. dxe5 dxe5 12. Rd1 Qc7 13. e4 Bg4 14. Ba3 Rad8 15. h3 Bxf3 16. Bxf3 Ne6 17. Ne2 Nd4 18. Nxd4 exd4 19. Qd3 Nd7 20. Rac1 c5 21. Bg2 Qa5 22. Bb2 Qxa2 23. Qc2 d3 24. Rxd3 Qxb2 25. Qd1 Bd4 26. Rc2 Qa3 27. Qd2 Ne5 28. Ra2 Bxf2+ 29. Qxf2 Qc1+ 30. Kh2 Nxd3 31. Qf6 a6 32. e5 Nxe5 33. Bd5 Qh6 34. Rf2 Ng4+ 0-1

[Event "Goiania zt"]
[Site "Goiania"]
[Date "2017.08.20"]
[Round "5"]
[White "De Araujo, Mauro Rogerio Peixo"]
[Black "Okada, William Kenji"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "1713"]
[BlackElo "1819"]
[PlyCount "77"]
[EventDate "2017.08.18"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. Nf3 Bg7 5. h3 0-0 6. d4 e5 7. Be3 Nc6 8. Qd2 Re8 9. dxe5 dxe5 10. 0-0-0 Be6 11. Qc2 Qe7 12. a3 Rad8 13. Be2 Na5 14. Nd5 Bxd5 15. cxd5 b6 16. Kb1 Rf8 17. Ba6 Rb8 18. Nd2 Nb7 19. Bxb7 Rxb7 20. f3 Rc8 21. Qc6 Rbb8 22. g4 Ne8 23. h4 h6 24. Rc1 Nd6 25. Nc4 Qf6 26. Nxd6 cxd6 27. Qxc8+ Rxc8 28. Rxc8+ Kh7 29. Rf1 Qxh4 30. Rcc1 Qh3 31. Bd2 a5 32. Be3 f5 33. gxf5 gxf5 34. Bxb6 fxe4 35. fxe4 Qd3+ 36. Ka1 Qxe4 37. Rcd1 Qc2 38. Rc1 Qb3 39. Bxa5 1-0

[Event "Goiania zt"]
[Site "Goiania"]
[Date "2017.08.19"]
[Round "4"]
[White "Okada, William Kenji"]
[Black "Franca, Jairo Jr"]
[Result "0-1"]
[ECO "E65"]
[WhiteElo "1819"]
[BlackElo "1898"]
[PlyCount "100"]
[EventDate "2017.08.18"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 c5 5. e3 0-0 6. Nf3 d6 7. 0-0 Nc6 8. Nc3 Bf5 9. a3 Qc8 10. Re1 Ne4 11. Bd2 Nxd2 12. Qxd2 Bg4 13. d5 Ne5 14. Nxe5 Bxe5 15. Rab1 h5 16. f3 Bh3 17. Ne2 h4 18. e4 hxg3 19. hxg3 Kg7 20. Kf2 Bd7 21. Rh1 f5 22. Qh6+ Kf6 23. Qh4+ Kf7 24. Qh7+ Ke8 25. Qxg6+ Kd8 26. Qh6 Kc7 27. Qh4 Qe8 28. Bh3 fxe4 29. Qxe4 Rh8 30. Be6 Bxe6 31. dxe6 Qc6 32. Qd3 Raf8 33. b4 a6 34. b5 axb5 35. Rxh8 Rxh8 36. Rxb5 Rh6 37. Qf5 Rf6 38. Qg4 d5 39. Qh5 Rxe6 40. Rb1 dxc4 41. Rd1 c3 42. Rc1 Bd4+ 43. Nxd4 cxd4 44. Qg4 d3 45. Qf4+ Rd6 46. Re1 Qc5+ 47. Kg2 d2 48. Rxe7+ Kb6 49. Rxb7+ Kxb7 50. Qe4+ Kb6 0-1

[Event "Goiania zt"]
[Site "Goiania"]
[Date "2017.08.19"]
[Round "3"]
[White "Okada, William Kenji"]
[Black "Gattamorta, Julia Marzanatti"]
[Result "1-0"]
[ECO "D78"]
[WhiteElo "1819"]
[BlackElo "1602"]
[PlyCount "71"]
[EventDate "2017.08.18"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. g3 Nf6 2. Bg2 g6 3. d4 d5 4. Nf3 Bg7 5. c4 c6 6. 0-0 0-0 7. Nbd2 Bf5 8. b3 Nbd7 9. Bb2 Qb6 10. Rc1 Rac8 11. Ne5 Rfd8 12. Nxd7 Nxd7 13. cxd5 cxd5 14. Bxd5 Rxc1 15. Qxc1 Bxd4 16. Bxf7+ Kf8 17. Bxd4 Qxd4 18. Nf3 Qd6 19. Bc4 Ne5 20. Qh6+ Ke8 21. Nxe5 Qxe5 22. Qxh7 b5 23. Qg8+ Kd7 24. Rd1+ Kc6 25. Bxb5+ Kxb5 26. Qxd8 Qxe2 27. Qd2 Qe4 28. Qd5+ Qxd5 29. Rxd5+ Kb4 30. Rd2 Ka3 31. Re2 e6 32. f3 a5 33. Re5 Kxa2 34. Rxa5+ Kxb3 35. Kf2 Kb4 36. Re5 1-0

[Event "Goiania zt"]
[Site "Goiania"]
[Date "2017.08.18"]
[Round "2"]
[White "Labussiere, Victor"]
[Black "Okada, William Kenji"]
[Result "1-0"]
[ECO "E97"]
[WhiteElo "1923"]
[BlackElo "1819"]
[PlyCount "37"]
[EventDate "2017.08.18"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Nf3 e5 7. 0-0 Nc6 8. dxe5 dxe5 9. Bg5 Be6 10. Nd5 Re8 11. Rc1 Bxd5 12. cxd5 Nd4 13. Nxd4 exd4 14. Bd3 Qd6 15. Bxf6 Bxf6 16. f4 Bg7 17. Qb3 Bh6 18. e5 Qd8 19. Qxb7 1-0

[Event "Goiania zt"]
[Site "Goiania"]
[Date "2017.08.18"]
[Round "1"]
[White "Okada, William Kenji"]
[Black "De Oliveira, Enzo Resende"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "1819"]
[BlackElo "1271"]
[PlyCount "67"]
[EventDate "2017.08.18"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 e6 4. Nf3 Bd6 5. e3 Ne7 6. Bd3 Nd7 7. 0-0 0-0 8. e4 b6 9. e5 Bc7 10. Bxh7+ Kh8 11. Bd3 Kg8 12. Ng5 g6 13. cxd5 cxd5 14. Nf3 Nf5 15. Bg5 Qe8 16. Bxf5 exf5 17. Nxd5 Bd8 18. Bh6 Bb7 19. Nf4 Bc7 20. Re1 Be4 21. Qb3 a5 22. a4 Bd8 23. Nxg6 Kh7 24. Nxf8+ Kxh6 25. Nxd7 Qxd7 26. Qe3+ Kg7 27. Nd2 Bd5 28. Rac1 Kg6 29. Qg3+ Bg5 30. h4 Rg8 31. hxg5 Kh5 32. Nf3 Bxf3 33. Qxf3+ Kxg5 34. Qg3+ 1-0

[Event "Goiania Prevest op"]
[Site "Goiania"]
[Date "2015.11.29"]
[Round "6.2"]
[White "Okada, William Kenji"]
[Black "Silva, Gustavo Queiroz Dos"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1833"]
[BlackElo "1996"]
[PlyCount "94"]
[EventDate "2015.11.27"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. e3 cxd4 4. exd4 d5 5. Nf3 Nc6 6. Nc3 Bg4 7. Be3 e6 8. Be2 Be7 9. 0-0 0-0 10. b3 Qa5 11. Na4 dxc4 12. bxc4 Rad8 13. Nb2 Ne4 14. Qe1 Bb4 15. Qc1 Bc3 16. Qc2 Bf5 17. Qb3 Qb4 18. Qxb4 Nxb4 19. Rab1 Nf6 20. Na4 Bxb1 21. Rxb1 Ne4 22. Kf1 Nc2 23. Bd3 Nxe3+ 24. fxe3 Nd2+ 25. Nxd2 Bxd2 26. Ke2 Ba5 27. Rxb7 e5 28. Rxa7 Ra8 29. Rxa8 Rxa8 30. d5 Bb4 31. Bc2 g6 32. Bb3 Ra6 33. Kd3 Ra5 34. Nb6 f6 35. c5 Bxc5 36. Nd7 Kf7 37. d6+ Ke8 38. Nxf6+ Kd8 39. Nxh7 Bxd6 40. Ng5 e4+ 41. Nxe4 Bxh2 42. Kd4 Bg1 43. Nc3 Rg5 44. Bd5 Kd7 45. a4 Bh2 46. Ne4 Rf5 47. Nc3 Be5+ 0-1

[Event "Goiania Prevest op"]
[Site "Goiania"]
[Date "2015.11.29"]
[Round "5.4"]
[White "Spirandelli, Felipe Reis"]
[Black "Okada, William Kenji"]
[Result "0-1"]
[ECO "B86"]
[BlackElo "1833"]
[PlyCount "56"]
[EventDate "2015.11.27"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 a6 5. Bc4 Nf6 6. Nc3 e6 7. Be3 Be7 8. Qd2 Ng4 9. f3 Nxe3 10. Qxe3 0-0 11. 0-0 Nc6 12. Nxc6 bxc6 13. Kh1 d5 14. Rfd1 Bb7 15. exd5 cxd5 16. a3 Qc7 17. Ba2 Rad8 18. b4 d4 19. Rxd4 Rxd4 20. Qxd4 Bf6 21. Qc4 Qxc4 22. Bxc4 Rc8 23. Bd3 Rxc3 24. Rb1 Rxa3 25. h3 g6 26. b5 axb5 27. Bxb5 Ra1 28. Rxa1 Bxa1 0-1

[Event "Goiania Prevest op"]
[Site "Goiania"]
[Date "2015.11.28"]
[Round "4.4"]
[White "Lemos, Eduarda Andreza"]
[Black "Okada, William Kenji"]
[Result "0-1"]
[ECO "B80"]
[BlackElo "1833"]
[PlyCount "44"]
[EventDate "2015.11.27"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Nf6 6. f3 e6 7. Be3 Be7 8. Qd2 Nc6 9. 0-0-0 Qc7 10. Kb1 0-0 11. Be2 b5 12. g4 b4 13. Na4 Bd7 14. Nxc6 Bxc6 15. Qxb4 Rab8 16. Qc4 Qb7 17. Qb3 Bxa4 18. Qxb7 Rxb7 19. Bxa6 Rc7 20. Bd3 Nd7 21. h4 Ne5 22. Rc1 Nxf3 0-1

[Event "Goiania Prevest op"]
[Site "Goiania"]
[Date "2015.11.28"]
[Round "3.1"]
[White "Okada, William Kenji"]
[Black "Diamant, Andre"]
[Result "0-1"]
[ECO "E60"]
[WhiteElo "1833"]
[BlackElo "2495"]
[PlyCount "118"]
[EventDate "2015.11.27"]
[EventType "swiss"]
[EventRounds "6"]
[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. Nf3 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Nc6 7. b3 e5 8. Bb2 e4 9. Ne1 Re8 10. Nc2 h5 11. Nc3 h4 12. d5 Nb8 13. Qc1 a5 14. a3 Na6 15. b4 Bf5 16. Na4 Qe7 17. Qd2 Bd7 18. b5 Nc5 19. Nxc5 dxc5 20. Rfd1 Qd6 21. Ne3 Re7 22. b6 cxb6 23. Rab1 Ra6 24. Qc2 Nh5 25. Bxg7 Kxg7 26. Bxe4 hxg3 27. hxg3 f5 28. Bf3 Rxe3 29. Bxh5 Rxg3+ 30. fxg3 Qxg3+ 31. Kh1 Qh3+ 32. Kg1 Qxh5 33. Qd3 Kf7 34. Qf3 Qg5+ 35. Kf2 Qh4+ 36. Qg3 Qxc4 37. Qd6 Qh4+ 38. Kf1 Qe7 39. Qc7 b5 40. d6 Qe6 41. Qxc5 Rc6 42. Qd4 Rc4 43. Qf2 Qe4 44. Qh2 Kg7 45. Rb3 Rc2 46. Rh3 Kf6 47. Qf2 Rc4 48. Re3 Qh1+ 49. Qg1 Rf4+ 50. Rf3 Rxf3+ 51. exf3 Qxf3+ 52. Ke1 Qc3+ 53. Ke2 Qe5+ 54. Kf1 b4 55. Qh1 Qf4+ 56. Kg1 Qe3+ 57. Kh2 Qf2+ 58. Qg2 Qxg2+ 59. Kxg2 bxa3 0-1

[Event "Goiania Prevest op"]
[Site "Goiania"]
[Date "2015.11.27"]
[Round "2.4"]
[White "Cardoso, Enzo Rodrigues da C"]
[Black "Okada, William Kenji"]
[Result "0-1"]
[ECO "C02"]
[BlackElo "1833"]
[PlyCount "48"]
[EventDate "2015.11.27"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. c3 e6 3. d4 d5 4. e5 Nc6 5. Nf3 Qb6 6. Qd3 Bd7 7. Nbd2 Rc8 8. Nb3 c4 9. Qc2 cxb3 10. Qxb3 Na5 11. Qxb6 axb6 12. b4 Nc4 13. Bxc4 Rxc4 14. Bd2 Ne7 15. 0-0 Nf5 16. g4 Ne7 17. a4 Nc8 18. Rfc1 Be7 19. h4 0-0 20. Bg5 Bxg5 21. hxg5 Ne7 22. Nd2 Rc7 23. Rc2 Rfc8 24. Rac1 Bxa4 0-1

[Event "Goiania Prevest op"]
[Site "Goiania"]
[Date "2015.11.27"]
[Round "1.4"]
[White "Okada, William Kenji"]
[Black "Freire, Pedro Felipe Olivei"]
[Result "1-0"]
[ECO "D46"]
[WhiteElo "1833"]
[PlyCount "65"]
[EventDate "2015.11.27"]
[EventType "swiss"]
[EventRounds "6"]
[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 e6 4. Nf3 Bd6 5. e3 Nf6 6. Bd3 0-0 7. 0-0 Nbd7 8. Qc2 b6 9. e4 dxe4 10. Nxe4 Nxe4 11. Bxe4 Qc7 12. Bxh7+ Kh8 13. Be4 Ba6 14. Rd1 f5 15. Bd3 Nf6 16. c5 bxc5 17. Bxa6 Nh7 18. dxc5 Be7 19. Re1 Rf6 20. Bg5 Nxg5 21. Nxg5 Rg6 22. Nxe6 Qb8 23. Qxf5 Rf6 24. Qh3+ Rh6 25. Qg3 Qxg3 26. hxg3 Bf6 27. Re2 Rb8 28. Rd1 Rxb2 29. Rxb2 Bxb2 30. Ng5 Bf6 31. Nf7+ Kg8 32. Nxh6+ Kh7 33. Ng4 1-0

[Event "BRA-chB U20"]
[Site "Goiania"]
[Date "2015.10.12"]
[Round "7"]
[White "Okada, William Kenji"]
[Black "Zandonai Ignacio, Antonio Carlos"]
[Result "1-0"]
[ECO "E60"]
[WhiteElo "1835"]
[BlackElo "1787"]
[PlyCount "89"]
[EventDate "2015.10.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. Nf3 0-0 6. 0-0 Nc6 7. b3 a6 8. Bb2 Rb8 9. d5 Na5 10. Nd4 Bd7 11. Nd2 c5 12. dxc6 Nxc6 13. Rc1 Nxd4 14. Bxd4 Bc6 15. e4 Qd7 16. Qc2 Rfd8 17. Rfd1 Qe8 18. Nf1 h5 19. Ne3 h4 20. Nd5 Bxd5 21. exd5 Bh6 22. Rb1 hxg3 23. hxg3 Nh5 24. Bb6 Rdc8 25. Bh3 Kg7 26. Bxc8 Qxc8 27. Re1 Bg5 28. Qc3+ Kh7 29. Qf3 Kg8 30. Be3 Bf6 31. Rbc1 Qh3 32. c5 Kg7 33. c6 bxc6 34. dxc6 Rh8 35. c7 Be5 36. Qg2 Qc8 37. Bg5 f6 38. Bd2 Kf7 39. Bc3 Bf4 40. gxf4 Nxf4 41. Qf3 Nh3+ 42. Kf1 Ng5 43. Rxe7+ Kg8 44. Rg7+ Kxg7 45. Qxf6+ 1-0

[Event "BRA-chB U20"]
[Site "Goiania"]
[Date "2015.10.11"]
[Round "5"]
[White "Okada, William Kenji"]
[Black "De Melo, Rosa Tiago"]
[Result "0-1"]
[ECO "E60"]
[WhiteElo "1835"]
[BlackElo "1625"]
[PlyCount "86"]
[EventDate "2015.10.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 d6 6. 0-0 Nc6 7. b3 a6 8. Bb2 Rb8 9. d5 Na7 10. a4 a5 11. e4 e5 12. dxe6 fxe6 13. e5 Nd7 14. Bd4 Nc6 15. exd6 Nxd4 16. Nxd4 Nc5 17. dxc7 Qxc7 18. Nb5 Qe7 19. N1c3 e5 20. Ne4 Rd8 21. Ned6 Be6 22. Bd5 Rxd6 23. Nxd6 Qxd6 24. Bxe6+ Qxe6 25. Rb1 e4 26. Re1 Qf5 27. g4 Qe5 28. Qd5+ Qxd5 29. cxd5 Rd8 30. Rbd1 g5 31. d6 h6 32. Rd5 b6 33. d7 Rxd7 34. Rxd7 Nxd7 35. Rxe4 Bf8 36. Kg2 Kf7 37. Rd4 Ke6 38. f4 gxf4 39. Rxf4 Bb4 40. h4 Be7 41. Re4+ Ne5 42. Kg3 Kd5 43. Re1 Bxh4+ 0-1

[Event "BRA-chB U20"]
[Site "Goiania"]
[Date "2015.10.11"]
[Round "6"]
[White "Santos, Wellington"]
[Black "Okada, William Kenji"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "1526"]
[BlackElo "1835"]
[PlyCount "132"]
[EventDate "2015.10.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. e4 c5 2. Bc4 Nc6 3. Nc3 e6 4. d3 Nf6 5. Bg5 Be7 6. Nf3 d6 7. 0-0 0-0 8. Bb5 Nd4 9. Nxd4 cxd4 10. Ne2 Qa5 11. a4 a6 12. Bd2 Qc7 13. Bc4 Nxe4 14. Nxd4 Nxd2 15. Qxd2 Bf6 16. Qe3 Qb6 17. c3 d5 18. Ba2 Qxb2 19. Qc1 Qxc1 20. Rfxc1 Bd7 21. Bb3 b5 22. Nf3 Rfc8 23. d4 Rab8 24. h3 h6 25. axb5 axb5 26. Rab1 b4 27. Bd1 bxc3 28. Rxb8 Rxb8 29. Kf1 Rc8 30. Bb3 Be7 31. g4 Bb5+ 32. Kg2 Be2 33. Ne5 Bg5 34. Ra1 c2 35. Bxc2 Rxc2 36. Ra8+ Kh7 37. Nxf7 Bf6 38. Re8 Rc7 39. Rxe6 Rxf7 40. Rxe2 Bxd4 41. Rd2 Rxf2+ 42. Rxf2 Bxf2 43. Kxf2 Kg6 44. h4 Kf6 45. Kf3 Ke5 46. Ke3 g6 47. Kf3 d4 48. g5 hxg5 49. hxg5 Kf5 50. Ke2 Kxg5 51. Kd3 Kf4 52. Kxd4 g5 53. Kd3 Kf3 54. Kd2 Kf2 55. Kd3 g4 56. Ke4 g3 57. Kd5 g2 58. Kc5 g1Q 59. Kc4 Qg5 60. Kd4 Kf3 61. Kc3 Qe5+ 62. Kd2 Qe3+ 63. Kc2 Qd4 64. Kb3 Qc5 65. Kb2 Qc4 66. Kb1 Qe2 0-1

[Event "BRA-chB U20"]
[Site "Goiania"]
[Date "2015.10.10"]
[Round "3"]
[White "Okada, William Kenji"]
[Black "Valcarcel, Victor Ignacio Sant"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "1835"]
[BlackElo "1604"]
[PlyCount "35"]
[EventDate "2015.10.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c6 4. g3 Nf6 5. Bg2 c5 6. cxd5 Nxd5 7. 0-0 Bd7 8. Re1 Bc6 9. e4 Nb6 10. d5 Bd7 11. Bg5 f6 12. Be3 e5 13. Nxe5 g6 14. Nd3 Nc4 15. Bf4 Bg7 16. Qc1 Bb5 17. Nxc5 f5 18. exf5+ 1-0

[Event "BRA-chB U20"]
[Site "Goiania"]
[Date "2015.10.10"]
[Round "4"]
[White "Pereira da Silva, Evernandes"]
[Black "Okada, William Kenji"]
[Result "1/2-1/2"]
[ECO "B54"]
[WhiteElo "1724"]
[BlackElo "1835"]
[PlyCount "94"]
[EventDate "2015.10.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 e6 7. Be3 Be7 8. Be2 0-0 9. 0-0 Nc6 10. Rc1 Bd7 11. f4 Qc7 12. Kh1 Nxd4 13. Bxd4 Bc6 14. Bf3 Rad8 15. Qe1 Rfe8 16. Qg3 Kh8 17. e5 Bxf3 18. Rxf3 dxe5 19. Bxe5 Qxc4 20. b3 Qc6 21. h3 Rc8 22. Ne2 Qe4 23. Nc3 Qg6 24. Qxg6 hxg6 25. Rd1 Red8 26. Rfd3 Rxd3 27. Rxd3 Rd8 28. Rxd8+ Bxd8 29. Bxf6 gxf6 30. Ne4 Be7 31. Kg1 Kg7 32. Kf2 f5 33. Nd2 Bd6 34. Kf3 f6 35. Nc4 Bc7 36. g4 g5 37. gxf5 exf5 38. fxg5 fxg5 39. Ne3 Kg6 40. a4 Bb6 41. Nd5 Bd4 42. b4 Bf6 43. b5 Bd8 44. bxa6 bxa6 45. Nb4 a5 46. Nc6 Bb6 47. Ne7+ Kh5 1/2-1/2

[Event "BRA-chB U20"]
[Site "Goiania"]
[Date "2015.10.09"]
[Round "2"]
[White "Carneiro, Vitor Roberto Castr"]
[Black "Okada, William Kenji"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2381"]
[BlackElo "1835"]
[PlyCount "69"]
[EventDate "2015.10.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. e3 Nf6 4. b3 e6 5. Bb2 Bd6 6. Qc2 Nbd7 7. Nc3 b6 8. g4 Bb7 9. Rg1 dxc4 10. bxc4 c5 11. Be2 Ne5 12. Nxe5 Bxe5 13. g5 Nd7 14. f4 Bc7 15. 0-0-0 a6 16. Ne4 e5 17. Bf3 Rb8 18. h4 b5 19. h5 Qe7 20. Rdf1 bxc4 21. h6 g6 22. f5 c3 23. Nxc3 Bxf3 24. Rxf3 0-0 25. Nd5 Qd6 26. e4 c4 27. fxg6 fxg6 28. Rxf8+ Nxf8 29. Qxc4 Ne6 30. Rg3 Bd8 31. Nf6+ Bxf6 32. gxf6 Qb6 33. Rb3 Qg1+ 34. Kc2 Re8 35. Rb7 1-0

[Event "BRA-chB U20"]
[Site "Goiania"]
[Date "2015.10.09"]
[Round "1"]
[White "Okada, William Kenji"]
[Black "Rosa, Joao Paulo"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "1835"]
[BlackElo "1557"]
[PlyCount "75"]
[EventDate "2015.10.09"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nc6 3. e3 d5 4. cxd5 Qxd5 5. Nc3 Qd7 6. Bb5 Qd6 7. 0-0 Nf6 8. d4 Bd7 9. d5 Nb4 10. e4 Bxb5 11. Nxb5 Qb6 12. Qa4 0-0-0 13. Nxa7+ Kb8 14. Bf4+ e5 15. Bxe5+ Bd6 16. Bxd6+ Rxd6 17. Nb5 Qa6 18. Qxa6 Rxa6 19. Nc3 Re8 20. Nd2 Nd3 21. Rab1 Rb6 22. b3 Ne5 23. f3 Nh5 24. Nc4 Nxc4 25. bxc4 Ra6 26. Rb5 b6 27. Rfb1 Kc7 28. R5b2 Rd8 29. Nb5+ Kb7 30. e5 Nf4 31. Nd6+ Kc7 32. Nxf7 Rda8 33. e6 Ra3 34. Rxb6 Nxe6 35. Rxe6 Rxa2 36. d6+ Kd7 37. Re7+ Kc6 38. Rc7# 1-0

[Event "Goiania-ch U16"]
[Site "Goiania"]
[Date "2014.04.06"]
[Round "4"]
[White "Okada, William Kenji"]
[Black "Do Nascimento, Carlos Eduardo"]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "1835"]
[BlackElo "1810"]
[PlyCount "81"]
[EventDate "2014.04.05"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 Be7 4. Bg2 0-0 5. Nf3 b6 6. Ne5 c6 7. 0-0 Bb7 8. Nc3 d5 9. b3 Nbd7 10. Nxd7 Qxd7 11. Bb2 Ba6 12. cxd5 exd5 13. Re1 Bb4 14. a3 Bxc3 15. Bxc3 Bb7 16. Bb2 Rfe8 17. Rc1 Qf5 18. e3 Ng4 19. Rc2 Nf6 20. Qe2 Ba6 21. Qd1 Bb7 22. b4 Rac8 23. a4 Ba6 24. Bf1 Bxf1 25. Rxf1 Qh3 26. Qf3 b5 27. axb5 cxb5 28. Rc5 Rxc5 29. dxc5 Ne4 30. Rd1 Nf6 31. Bxf6 gxf6 32. Rxd5 Qe6 33. Rd6 Qc4 34. Rd4 Qc1+ 35. Kg2 Qa3 36. Qxf6 a5 37. Rg4+ Kf8 38. Qh8+ Ke7 39. Re4+ Kd7 40. Qxe8+ Kc7 41. Re7# 1-0

[Event "Goiania-ch U16"]
[Site "Goiania"]
[Date "2014.04.06"]
[Round "5"]
[White "Rocha, Arthur Ferreira"]
[Black "Okada, William Kenji"]
[Result "1-0"]
[ECO "E61"]
[WhiteElo "1822"]
[BlackElo "1835"]
[PlyCount "85"]
[EventDate "2014.04.05"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 0-0 5. e3 d6 6. Bd3 Re8 7. e4 e5 8. d5 Rf8 9. h3 Ne8 10. Bg5 f6 11. Bh4 g5 12. Bg3 h6 13. Qc2 Nd7 14. Nd2 Nc5 15. Be2 a5 16. Bg4 b6 17. f3 Rf7 18. Nf1 Bf8 19. Ne3 Ng7 20. h4 h5 21. Bxc8 Qxc8 22. Bf2 gxh4 23. Rxh4 f5 24. exf5 Be7 25. Rh2 Nxf5 26. Rxh5 Nd4 27. Qg6+ Rg7 28. Qh6 Nd3+ 29. Kf1 Nf4 30. Qh8+ Kf7 31. Qxc8 Rxc8 32. Rh2 Bg5 33. Ne4 Nd3 34. Rb1 Bf4 35. Rh5 Nxf2 36. Kxf2 Bxe3+ 37. Kxe3 Rxg2 38. Rh7+ Kg6 39. Rbh1 Nf5+ 40. Kd3 Rxb2 41. Rd7 Rg2 42. Rhh7 c6 43. Rhf7 1-0

[Event "Goiania-ch U16"]
[Site "Goiania"]
[Date "2014.04.05"]
[Round "1"]
[White "Okada, William Kenji"]
[Black "Okada, Dyogo Koithi"]
[Result "1-0"]
[ECO "A49"]
[WhiteElo "1835"]
[BlackElo "1696"]
[PlyCount "55"]
[EventDate "2014.04.05"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nf3 0-0 5. b3 d6 6. Bb2 Na6 7. 0-0 c5 8. e3 Bf5 9. Nbd2 Nb4 10. Ne1 b5 11. c3 Nd3 12. Nxd3 Bxd3 13. Re1 Rb8 14. e4 c4 15. a4 bxa4 16. Rxa4 cxb3 17. Nxb3 Bb5 18. Rxa7 Bc4 19. Nd2 Qb6 20. Rxe7 Be6 21. Ba1 Rfc8 22. e5 dxe5 23. dxe5 Ng4 24. Ne4 Nxe5 25. c4 Nxc4 26. Bxg7 Kxg7 27. Ng5 Rd8 28. Qf3 1-0

[Event "Goiania-ch U16"]
[Site "Goiania"]
[Date "2014.04.05"]
[Round "2"]
[White "Rosa, Pedro Paulo"]
[Black "Okada, William Kenji"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "1791"]
[BlackElo "1835"]
[PlyCount "72"]
[EventDate "2014.04.05"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. g3 Nc6 4. Bg2 Nf6 5. d3 e6 6. 0-0 Be7 7. h3 0-0 8. b3 Qc7 9. Bb2 b5 10. Nbd2 Bb7 11. a3 d5 12. e5 Nd7 13. Qe2 Rfe8 14. d4 a6 15. c3 f6 16. Rfe1 fxe5 17. Nxe5 Ndxe5 18. dxe5 Rad8 19. Rad1 d4 20. Nf3 dxc3 21. Bxc3 Na5 22. Nd2 Bxg2 23. Kxg2 b4 24. axb4 cxb4 25. Ba1 Qc6+ 26. Kh2 Rf8 27. f4 Qc2 28. Kg1 Nxb3 29. Qg4 Bc5+ 30. Kh1 Rxd2 31. Qxe6+ Kh8 32. Rxd2 Qxd2 33. Rf1 Nxa1 34. Rxa1 Qc3 35. Qxa6 Qxg3 36. Qc4 Qxh3# 0-1

[Event "Goias Interior-ch "]
[Site "Trindade"]
[Date "2013.08.18"]
[Round "6"]
[White "Okada, William Kenji"]
[Black "Okada, Dyogo Koithi"]
[Result "1/2-1/2"]
[ECO "A58"]
[WhiteElo "1824"]
[BlackElo "1683"]
[PlyCount "27"]
[EventDate "2013.08.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. g3 g6 8. Bg2 Bg7 9. Nf3 0-0 10. 0-0 Nbd7 11. Re1 Qb6 12. a3 Rfb8 13. e4 c4 14. Bf1 1/2-1/2

[Event "Goias Interior-ch "]
[Site "Trindade"]
[Date "2013.08.18"]
[Round "5"]
[White "Okada, William Kenji"]
[Black "Rezende, Guilherme Vilela"]
[Result "1/2-1/2"]
[ECO "E11"]
[WhiteElo "1824"]
[BlackElo "2091"]
[PlyCount "82"]
[EventDate "2013.08.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 a5 5. Bg2 0-0 6. Nf3 d6 7. 0-0 Qe7 8. Nc3 e5 9. e4 c5 10. dxc5 dxc5 11. Nd5 Nxd5 12. exd5 Bxd2 13. Nxd2 f5 14. Re1 Qd6 15. Qc2 Nd7 16. b3 Nf6 17. a3 Bd7 18. Qc3 Rfe8 19. Rab1 e4 20. f3 exf3 21. Bxf3 f4 22. Ne4 Nxe4 23. Bxe4 fxg3 24. Qxg3 Qf6 25. Qf2 Qxf2+ 26. Kxf2 Rf8+ 27. Kg2 Rf4 28. Bf3 Raf8 29. Re3 g5 30. Rf1 a4 31. Be2 Bg4 32. Bd3 axb3 33. Rb1 b5 34. cxb5 Bf3+ 35. Kg3 Bxd5 36. Be2 Ra8 37. Re5 Re4 38. Rxd5 Rxe2 39. Rxb3 c4 40. Rxg5+ Kf7 41. Rc3 Ra2 1/2-1/2

[Event "Goias Interior-ch "]
[Site "Trindade"]
[Date "2013.08.17"]
[Round "4"]
[White "Amaro, Jose Roberto"]
[Black "Okada, William Kenji"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "1941"]
[BlackElo "1824"]
[PlyCount "56"]
[EventDate "2013.08.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. c3 d6 3. d4 cxd4 4. cxd4 Nf6 5. Nc3 Nc6 6. Nf3 a6 7. h3 e6 8. Be3 Be7 9. Rc1 Bd7 10. Bd3 0-0 11. 0-0 Rc8 12. Re1 Re8 13. Bg5 h6 14. Bf4 Bf8 15. a4 e5 16. Be3 exd4 17. Nxd4 Ne5 18. b3 Nxd3 19. Qxd3 Be6 20. Red1 d5 21. e5 Nd7 22. Nf3 Nc5 23. Bxc5 Bxc5 24. Kf1 Ba7 25. Ne2 Qb6 26. Qd4 Qxd4 27. Nfxd4 Rxc1 28. Rxc1 Rc8 1/2-1/2

[Event "Goias Interior-ch "]
[Site "Trindade"]
[Date "2013.08.17"]
[Round "3"]
[White "Santos, Luciano da Silva"]
[Black "Okada, William Kenji"]
[Result "1/2-1/2"]
[ECO "B53"]
[WhiteElo "1882"]
[BlackElo "1824"]
[PlyCount "53"]
[EventDate "2013.08.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 a6 5. Bc4 Nc6 6. Qd3 Nf6 7. Nc3 e6 8. Bg5 Be7 9. a4 0-0 10. 0-0 Qc7 11. Bb3 b6 12. Rfd1 Rd8 13. Qe2 Bb7 14. Nd4 Nxd4 15. Rxd4 Rd7 16. Rad1 Rad8 17. Kh1 d5 18. exd5 Nxd5 19. Nxd5 Bxd5 20. Bxe7 Rxe7 21. Bxd5 exd5 22. Qxa6 Qxc2 23. Qxb6 Rde8 24. Rg1 Qxf2 25. Rb4 Qd2 26. Rd4 Qe2 27. Rxd5 1/2-1/2

[Event "Goias Interior-ch "]
[Site "Trindade"]
[Date "2013.08.16"]
[Round "1"]
[White "De Paula, Guilherme Bueno"]
[Black "Okada, William Kenji"]
[Result "1-0"]
[ECO "A24"]
[WhiteElo "1998"]
[BlackElo "1824"]
[PlyCount "129"]
[EventDate "2013.08.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. g3 Nf6 2. Bg2 g6 3. c4 Bg7 4. Nf3 d6 5. 0-0 0-0 6. Nc3 e5 7. d3 Nbd7 8. Rb1 Ne8 9. b4 f5 10. Bg5 Nef6 11. Qd2 Re8 12. Rfc1 c6 13. Ne1 Qc7 14. b5 Nc5 15. bxc6 bxc6 16. Bxf6 Bxf6 17. Nd5 cxd5 18. Bxd5+ Be6 19. Bxa8 Rxa8 20. Nc2 Rb8 21. Ne3 Rb6 22. Rb4 Qb7 23. Rcb1 f4 24. Rxb6 axb6 25. Nd5 Bxd5 26. cxd5 Qxd5 27. Rxb6 fxg3 28. hxg3 e4 29. Qf4 Qe5 30. Rxd6 Qxf4 31. gxf4 Be7 32. Rd5 exd3 33. exd3 Na4 34. Ra5 Nc3 35. Kg2 Kf7 36. Kf3 Ke6 37. a4 Bd8 38. Ra7 Kd6 39. a5 Nb5 40. Rxh7 Bxa5 41. Rh6 Nd4+ 42. Ke4 Ne6 43. Rxg6 Ke7 44. d4 Bc7 45. f5 Nf8 46. Rg7+ Kd6 47. Rg8 Nd7 48. Rg6+ Ke7 49. Kd5 Nf6+ 50. Kc6 Bf4 51. d5 Ne8 52. Re6+ Kf7 53. Re4 Bb8 54. Re6 Bf4 55. f3 Bg3 56. Rh6 Bf4 57. Rh7+ Kf6 58. Rh8 Nd6 59. Rh4 Bg5 60. Rg4 Nxf5 61. d6 Ng7 62. f4 Bh6 63. Rh4 Nf5 64. d7 Ke7 65. Kc7 1-0

[Event "Goias Interior-ch "]
[Site "Trindade"]
[Date "2013.08.16"]
[Round "2"]
[White "Okada, William Kenji"]
[Black "Vieira Junior, Emivaldo"]
[Result "1-0"]
[ECO "A90"]
[WhiteElo "1824"]
[BlackElo "1911"]
[PlyCount "75"]
[EventDate "2013.08.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 d5 5. Nc3 c6 6. Nf3 Bd6 7. 0-0 0-0 8. a3 dxc4 9. Nd2 Nd5 10. Nxc4 Nxc3 11. bxc3 Bc7 12. Bb2 Nd7 13. Ne3 Nb6 14. Qb3 h5 15. c4 h4 16. Rad1 f4 17. Ng4 hxg3 18. fxg3 Qg5 19. Ne5 Nd7 20. gxf4 Rxf4 21. Rxf4 Qxf4 22. Rf1 Qh6 23. Qf3 Bxe5 24. dxe5 Qg6 25. Kh1 Rb8 26. Qf4 b6 27. Be4 Qh5 28. Rg1 Bb7 29. Bg6 c5+ 30. e4 Qh3 31. Bf7+ Kh8 32. Rg3 Bxe4+ 33. Kg1 Qh7 34. Rg4 g5 35. Rxg5 Bf3 36. Qxf3 Qb1+ 37. Kg2 Qxb2+ 38. Kh3 1-0

[Event "Goiania-ch U20"]
[Site "Goiania"]
[Date "2013.05.19"]
[Round "4"]
[White "Okada, Dyogo Koithi"]
[Black "Okada, William Kenji"]
[Result "1-0"]
[ECO "B95"]
[WhiteElo "1918"]
[BlackElo "2009"]
[PlyCount "49"]
[EventDate "2013.05.18"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Qd2 Be7 8. f3 Nc6 9. g4 Bd7 10. h4 b5 11. h5 h6 12. Be3 Ne5 13. g5 b4 14. Nd1 hxg5 15. Bxg5 Qb6 16. Be2 Rc8 17. Nf2 Nc4 18. Bxc4 Rxc4 19. 0-0-0 a5 20. h6 g6 21. Ng4 Nh7 22. Bxe7 Kxe7 23. e5 dxe5 24. Nf5+ gxf5 25. Qxd7+ 1-0

[Event "Goiania-ch U20"]
[Site "Goiania"]
[Date "2013.05.19"]
[Round "5"]
[White "Okada, William Kenji"]
[Black "Rosa, Joao Paulo"]
[Result "1-0"]
[ECO "E14"]
[WhiteElo "2009"]
[BlackElo "1851"]
[PlyCount "71"]
[EventDate "2013.05.18"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. e3 Be7 5. Nf3 b6 6. Bd3 Bb7 7. 0-0 Nbd7 8. Qe2 0-0 9. b3 Ne4 10. Bb2 Bb4 11. Rac1 Rc8 12. Rfd1 Ndf6 13. Ne5 Nxc3 14. Bxc3 Bxc3 15. Rxc3 Ne4 16. Rcc1 c5 17. cxd5 Bxd5 18. Ba6 Rc7 19. f3 Nd6 20. dxc5 bxc5 21. e4 f6 22. exd5 fxe5 23. Qxe5 Qe7 24. dxe6 Rc6 25. Bf1 Rf5 26. Qe3 Nb7 27. Rd7 Qe8 28. Rxb7 Rxe6 29. Bc4 Rfe5 30. Qxe5 Qf8 31. Rb8 Qxb8 32. Bxe6+ Kf8 33. Qxb8+ Ke7 34. Re1 g5 35. Qc7+ Kf6 36. Qf7# 1-0

[Event "Goiania-ch U20"]
[Site "Goiania"]
[Date "2013.05.18"]
[Round "3"]
[White "Okada, William Kenji"]
[Black "Garcia, Gabriel Gonzaga"]
[Result "0-1"]
[ECO "E68"]
[WhiteElo "2009"]
[BlackElo "2004"]
[PlyCount "76"]
[EventDate "2013.05.18"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 d6 5. Bg2 Nbd7 6. Nf3 0-0 7. 0-0 e5 8. e4 c6 9. Be3 Re8 10. Re1 exd4 11. Nxd4 Nc5 12. Bf4 Ne6 13. Nxe6 Bxe6 14. Bxd6 Bxc4 15. e5 Nd7 16. Qd4 Be6 17. Rad1 Qb6 18. f4 Rad8 19. Ne4 Bxa2 20. Qxb6 Nxb6 21. Ra1 Bd5 22. Rxa7 Nc4 23. Bc7 Rd7 24. b3 Bxe4 25. Bxe4 Nd2 26. Rd1 Rxc7 27. Rxd2 f6 28. exf6 Bxf6 29. Bc2 Bc3 30. Rd3 Bb4 31. Ra4 Bc5+ 32. Kf1 Rce7 33. Rc4 Re1+ 34. Kg2 R8e2+ 35. Kf3 Bb6 36. Rd7 h5 37. g4 Rf2+ 38. Kg3 Rg1+ 0-1

[Event "Goiania-ch U20"]
[Site "Goiania"]
[Date "2013.05.18"]
[Round "1"]
[White "Okada, William Kenji"]
[Black "Silva, Joao Gabriel Dos Sa"]
[Result "1-0"]
[ECO "A25"]
[WhiteElo "2009"]
[BlackElo "1813"]
[PlyCount "79"]
[EventDate "2013.05.18"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nc6 2. c4 Nf6 3. Nc3 e5 4. e3 Bb4 5. Be2 d6 6. a3 Bxc3+ 7. bxc3 0-0 8. Nf3 Ne4 9. Qc2 Nf6 10. 0-0 e4 11. Nd2 h6 12. Nxe4 Bf5 13. Bd3 Qe7 14. Nxf6+ Qxf6 15. Bxf5 Qh4 16. Qe4 Qg5 17. Qg4 Qf6 18. Bc2 Rfe8 19. Qf5 Qh4 20. Qh7+ Kf8 21. g3 Qh3 22. e4 a5 23. Qh8+ Ke7 24. Qxg7 Rg8 25. Qxh6 Qg4 26. f3 Qg6 27. Qxg6 Rxg6 28. f4 Rh8 29. d5 Na7 30. Be3 Nc8 31. Bd4 Rh7 32. e5 dxe5 33. Bxg6 fxg6 34. fxe5 Ke8 35. c5 b6 36. cxb6 cxb6 37. d6 Na7 38. e6 Nb5 39. d7+ Ke7 40. Bf6+ 1-0

[Event "Goiania-ch U20"]
[Site "Goiania"]
[Date "2013.05.18"]
[Round "2"]
[White "Sergio Filho, Claudio Santos"]
[Black "Okada, William Kenji"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "1941"]
[BlackElo "2009"]
[PlyCount "73"]
[EventDate "2013.05.18"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. g3 Nf6 4. d3 Nc6 5. Bg2 e6 6. 0-0 Be7 7. Nbd2 0-0 8. c3 Qc7 9. Qe2 b5 10. Re1 Bb7 11. Nf1 Rad8 12. h4 Rfe8 13. N3h2 Nd7 14. h5 Bf8 15. h6 g6 16. Bh3 Ne7 17. Bg5 d5 18. e5 Nb6 19. Ng4 Nd7 20. Nfh2 Rc8 21. Qd2 Nf5 22. Nf3 d4 23. Nh4 dxc3 24. bxc3 c4 25. d4 Nxh4 26. gxh4 Qc6 27. Kh2 a5 28. Bf6 b4 29. Qg5 bxc3 30. Bg7 Bxg7 31. hxg7 Kxg7 32. Qh6+ Kg8 33. f4 Nf8 34. Qg5 Qf3 35. Nh6+ Kg7 36. Ng4 Re7 37. Qf6+ 1-0

[Event "Goiania op"]
[Site "Goiania"]
[Date "2013.03.10"]
[Round "6"]
[White "Okada, William Kenji"]
[Black "Bernardes, Rafael Esteves"]
[Result "0-1"]
[ECO "D76"]
[WhiteElo "1824"]
[BlackElo "1990"]
[PlyCount "70"]
[EventDate "2013.03.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. Nc3 Nb6 7. Nf3 Nc6 8. e3 0-0 9. 0-0 a5 10. Qe2 Be6 11. Nd2 Nb4 12. Rd1 c6 13. Nde4 Qc7 14. Nc5 Bc4 15. Qd2 e5 16. b3 exd4 17. exd4 Rad8 18. bxc4 Rxd4 19. Nd3 Rxd3 20. Qxd3 Nxd3 21. Rxd3 Nxc4 22. Bf4 Be5 23. Bxe5 Nxe5 24. Rd4 Rd8 25. Rxd8+ Qxd8 26. Rd1 Qc7 27. Ne4 Kg7 28. Nc5 Qe7 29. Ne4 Qa3 30. Nd6 Qxa2 31. Nxb7 Qb3 32. Re1 Qxb7 33. Rxe5 a4 34. Ra5 Qb4 35. Ra6 a3 0-1

[Event "Goiania op"]
[Site "Goiania"]
[Date "2013.03.10"]
[Round "5"]
[White "Okada, William Kenji"]
[Black "De Paula, Guilherme Bueno"]
[Result "1/2-1/2"]
[ECO "A58"]
[WhiteElo "1824"]
[BlackElo "2021"]
[PlyCount "51"]
[EventDate "2013.03.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 g6 7. g3 Bg7 8. Bg2 d6 9. Nf3 0-0 10. 0-0 Nbd7 11. h3 Nb6 12. Re1 Qb8 13. e4 Nfd7 14. Bf1 Nc4 15. Qc2 Qb4 16. a3 Qa5 17. Rb1 Rfb8 18. Bd2 Nxd2 19. Nxd2 Bxf1 20. Kxf1 Bxc3 21. Qxc3 Qxc3 22. bxc3 Rxa3 23. Rxb8+ Nxb8 24. Rb1 Na6 25. Rb3 Rxb3 26. Nxb3 1/2-1/2

[Event "Goiania op"]
[Site "Goiania"]
[Date "2013.03.09"]
[Round "3"]
[White "Okada, William Kenji"]
[Black "Souza, Fernando Angelico"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "1824"]
[PlyCount "109"]
[EventDate "2013.03.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nc3 e6 4. Nf3 c6 5. e3 Be7 6. Bd3 h6 7. 0-0 Na6 8. a3 Qc7 9. Bd2 Ng4 10. Rc1 Bd6 11. h3 Nh2 12. Nxh2 Bxh2+ 13. Kh1 0-0 14. g3 e5 15. Kxh2 e4 16. Be2 Be6 17. cxd5 Bf5 18. dxc6 Qxc6 19. Bg4 Qg6 20. Nd5 Rfe8 21. Nf4 Bxg4 22. Qxg4 Qxg4 23. hxg4 Rad8 24. Rfd1 g5 25. Ne2 Nb8 26. Rc7 Rd7 27. Rdc1 Red8 28. Rxd7 Nxd7 29. Rc7 Nf6 30. Kh3 Rb8 31. Bb4 Nd5 32. Rd7 Nxb4 33. axb4 Rc8 34. Nc3 Kg7 35. Rxb7 Kg6 36. Rxa7 Rb8 37. b5 f6 38. Ra6 Kg7 39. b6 Kg6 40. Nxe4 h5 41. gxh5+ Kxh5 42. Nc5 g4+ 43. Kg2 Rf8 44. b7 f5 45. Rf6 Rxf6 46. b8Q Kg6 47. Qg8+ Kh6 48. Ne6 Rxe6 49. Qxe6+ Kg5 50. f4+ gxf3+ 51. Kxf3 Kh5 52. g4+ fxg4+ 53. Kf4 g3 54. Qf6 g2 55. Qg5# 1-0

[Event "Goiania op"]
[Site "Goiania"]
[Date "2013.03.09"]
[Round "4"]
[White "Silva, Vitor De Souza Mart"]
[Black "Okada, William Kenji"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "1997"]
[BlackElo "1824"]
[PlyCount "144"]
[EventDate "2013.03.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. d3 d6 6. c3 Nbd7 7. Qc2 c6 8. e4 e5 9. Nbd2 Qc7 10. b3 Rd8 11. a4 Nf8 12. Ba3 Ne6 13. Nc4 Ne8 14. Rad1 d5 15. Ne3 d4 16. cxd4 Nxd4 17. Nxd4 Rxd4 18. Bc5 Rd8 19. f4 b6 20. Ba3 Ba6 21. Nc4 Rac8 22. Kh1 c5 23. fxe5 Bxe5 24. Nxe5 Qxe5 25. Bb2 Qd6 26. Rf3 Ng7 27. Qc3 Qd4 28. Qd2 Qd6 29. Qh6 Ne6 30. Rxf7 Kxf7 31. Qxh7+ Ke8 32. Rf1 Rc7 33. Qxg6+ Kd7 34. e5 Qxd3 35. Rf7+ Kc8 36. Qxe6+ Kb8 37. Rf1 Qc2 38. Qf6 Re8 39. Qf3 Bb7 40. Qf2 Bxg2+ 41. Kxg2 Qxb3 42. a5 Qd5+ 43. Kg1 Qe6 44. axb6 axb6 45. Bc1 Ree7 46. Qf6 Qd5 47. Qxb6+ Qb7 48. Rf8+ Rc8 49. Rxc8+ Kxc8 50. Qxc5+ Qc7 51. Qxc7+ Kxc7 52. Kg2 Kd7 53. Bf4 Ke6 54. h4 Kf5 55. Kh3 Rg7 56. h5 Rb7 57. h6 Rd7 58. Kg2 Rb7 59. Kf3 Rb3+ 60. Ke2 Ra3 61. Kd2 Rb3 62. Ke2 Ra3 63. Kf2 Rb3 64. Be3 Rb7 65. Kf3 Kxe5 66. Kg4 Kf6 67. Kf3 Kg6 68. g4 Rh7 69. g5 Rb7 70. Ke4 Rh7 71. Kd5 Re7 72. Bc5 Re2 1/2-1/2

[Event "Goiania op"]
[Site "Goiania"]
[Date "2013.03.08"]
[Round "1"]
[White "Okada, William Kenji"]
[Black "De Miranda, Alexandre Pinto"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "1824"]
[BlackElo "2088"]
[PlyCount "68"]
[EventDate "2013.03.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 0-0 6. Bg2 c5 7. 0-0 cxd4 8. Nxd4 Nc6 9. e3 d5 10. cxd5 Nxd4 11. exd4 Nxd5 12. Nc3 Nxc3 13. bxc3 Bd6 14. c4 Rd8 15. Be3 Rb8 16. Qb3 b6 17. Rfd1 Bb7 18. d5 exd5 19. cxd5 Rbc8 20. Rac1 Rxc1 21. Bxc1 Rc8 22. Qd3 Qf6 23. Qe2 Qc3 24. Bb2 Qc2 25. Re1 Qxe2 26. Rxe2 Kf8 27. Rd2 Re8 28. Bf3 Re1+ 29. Kg2 Ba6 30. Bg4 g6 31. Bf6 Ke8 32. Rc2 h5 33. Bc8 Bf1+ 34. Kf3 Bd3 0-1

[Event "Goiania op"]
[Site "Goiania"]
[Date "2013.03.08"]
[Round "2"]
[White "Souza Filho, Fernando Angelico"]
[Black "Okada, William Kenji"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1836"]
[BlackElo "1824"]
[PlyCount "54"]
[EventDate "2013.03.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. e3 g6 3. Be2 Bg7 4. Nf3 d6 5. Nc3 0-0 6. Bd2 Nbd7 7. 0-0 e5 8. Bd3 Re8 9. Re1 e4 10. Qe2 exd3 11. Qxd3 Nb6 12. h3 d5 13. e4 dxe4 14. Nxe4 Nxe4 15. Rxe4 Bf5 16. Bg5 Bxe4 17. Bxd8 Bxd3 18. Bxc7 Bxc2 19. Rc1 Be4 20. Bxb6 axb6 21. Nd2 Bxd4 22. Rc4 Rad8 23. Kh1 Be5 24. Nf3 Rd1+ 25. Ng1 Bb8 26. Rb4 Rc8 27. Rxb6 Rxg1+ 0-1

[Event "BRA-ch U14"]
[Site "Rio de Janeiro"]
[Date "2012.05.13"]
[Round "6"]
[White "Okada, William Kenji"]
[Black "De Souza, Felipe Mazim"]
[Result "0-1"]
[ECO "D31"]
[WhiteElo "1827"]
[BlackElo "1707"]
[PlyCount "92"]
[EventDate "2012.05.11"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. e3 b5 6. a4 Bb4 7. Bd2 a5 8. axb5 Bxc3 9. Bxc3 cxb5 10. b3 Bb7 11. bxc4 b4 12. Bb2 Nf6 13. Bd3 0-0 14. 0-0 Qc7 15. Qc2 Nbd7 16. e4 h6 17. Rfc1 Rfc8 18. Nd2 e5 19. d5 Nc5 20. Nf3 Nfd7 21. Bf1 a4 22. Rd1 Qd6 23. Nd2 Rcb8 24. Rdb1 a3 25. Bc1 Na4 26. Rb3 Bc8 27. Rg3 Ndc5 28. Nb3 Nxb3 29. Rxb3 Nc5 30. Rbb1 b3 31. Qe2 a2 32. Rb2 Na4 33. Rd2 Qb4 34. Bb2 f6 35. Qd3 Nc5 36. Qe2 Nxe4 37. Rd3 Nc5 38. Rg3 Kh8 39. Qh5 Bd7 40. Qg6 Rg8 41. Qh5 Ne4 42. Rg6 Ng5 43. Bd3 Qe7 44. Rxg5 e4 45. Bxe4 Qxe4 46. Rg6 Rae8 0-1

[Event "BRA-ch U14"]
[Site "Rio de Janeiro"]
[Date "2012.05.12"]
[Round "3"]
[White "Cirne, Bruno Uchoa"]
[Black "Okada, William Kenji"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1693"]
[BlackElo "1827"]
[PlyCount "54"]
[EventDate "2012.05.11"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 0-0 6. Be2 Nbd7 7. 0-0 c5 8. c3 Re8 9. Nbd2 cxd4 10. cxd4 Nb6 11. Rc1 Bf5 12. Qb3 h6 13. Rfe1 a6 14. Nc4 Nbd5 15. Qxb7 Nxf4 16. exf4 Be4 17. Qb3 Nd5 18. Ncd2 Rb8 19. Qa3 Bxf3 20. Nxf3 Nxf4 21. Bxa6 Qb6 22. Re4 e5 23. dxe5 dxe5 24. b3 Ra8 25. Nxe5 Bxe5 26. Rce1 Rxa6 27. Qc1 Nd3 0-1

[Event "BRA-ch U14"]
[Site "Rio de Janeiro"]
[Date "2012.05.12"]
[Round "4"]
[White "Okada, William Kenji"]
[Black "Vilalba, Guilherme Pereira"]
[Result "1-0"]
[ECO "E67"]
[WhiteElo "1827"]
[BlackElo "1906"]
[PlyCount "29"]
[EventDate "2012.05.11"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 d6 6. 0-0 Nbd7 7. Bf4 c6 8. Nc3 Qc7 9. c5 Nh5 10. cxd6 exd6 11. Bg5 h6 12. Bd2 Nhf6 13. Rc1 Nb6 14. e4 Re8 15. Re1 1-0

[Event "BRA-ch U14"]
[Site "Rio de Janeiro"]
[Date "2012.05.12"]
[Round "5"]
[White "Takeda, Lucas Koji"]
[Black "Okada, William Kenji"]
[Result "1-0"]
[ECO "E61"]
[WhiteElo "1902"]
[BlackElo "1827"]
[PlyCount "67"]
[EventDate "2012.05.11"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 0-0 5. Bf4 d6 6. h3 Nbd7 7. e3 c6 8. Be2 Re8 9. 0-0 Qc7 10. Qc2 e5 11. Bh2 b6 12. Rfd1 Bb7 13. Rac1 Rac8 14. b4 exd4 15. exd4 Red8 16. c5 Ne8 17. Ne4 Ndf6 18. Nxd6 Nxd6 19. Bxd6 Qd7 20. Ne5 Qe6 21. Bc4 Nd5 22. Re1 Re8 23. Re2 Qf6 24. Bxd5 cxd5 25. Rce1 Red8 26. Qa4 bxc5 27. bxc5 Qf5 28. Qxa7 Ba8 29. Re3 Bxe5 30. Rxe5 Qd3 31. Re7 Qd2 32. Rxf7 Qxd4 33. Be5 Qxe5 34. Rxe5 1-0

[Event "BRA-ch U14"]
[Site "Rio de Janeiro"]
[Date "2012.05.11"]
[Round "1"]
[White "Brandao, Icaro"]
[Black "Okada, William Kenji"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "1795"]
[BlackElo "1827"]
[PlyCount "100"]
[EventDate "2012.05.11"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. g3 Nc6 4. Bg2 Nf6 5. d3 e6 6. 0-0 Be7 7. Re1 0-0 8. Nc3 Bd7 9. Be3 Qc7 10. Qe2 Rfe8 11. Rad1 Bf8 12. Bg5 Be7 13. Qd2 a6 14. Ne2 Rad8 15. c3 b5 16. Bxf6 Bxf6 17. Qc2 Qb6 18. a3 Rc8 19. Qd2 Red8 20. d4 cxd4 21. Nexd4 Na5 22. b3 e5 23. Ne2 Be6 24. b4 Nc4 25. Qc1 a5 26. Qa1 axb4 27. axb4 d5 28. Qb1 d4 29. Rd3 dxc3 30. Nxc3 Rxd3 31. Qxd3 Be7 32. Qb1 Rd8 33. Bf1 Nd2 34. Nxd2 Rxd2 35. Re2 Rd4 36. Rb2 Bd7 37. Nd5 Qd6 38. Qc2 Bd8 39. Qe2 Bc6 40. Bg2 Bxd5 41. exd5 Rxb4 42. Rxb4 Qxb4 43. Qxe5 Be7 44. Qb8+ Bf8 45. d6 Qxd6 46. Qxb5 g6 47. Qd5 Qb4 48. h3 Qe1+ 49. Bf1 Qc1 50. Kg2 Qb2 1/2-1/2

[Event "BRA-ch U14"]
[Site "Rio de Janeiro"]
[Date "2012.05.11"]
[Round "2"]
[White "Okada, William Kenji"]
[Black "Outi, Matheus Goya"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "1827"]
[BlackElo "1603"]
[PlyCount "123"]
[EventDate "2012.05.11"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Bxd2+ 5. Nxd2 d5 6. Ngf3 0-0 7. Bg2 c6 8. 0-0 Nbd7 9. Qc2 Re8 10. Rad1 b5 11. b3 Ba6 12. Rfe1 Rc8 13. e3 c5 14. dxc5 Rxc5 15. b4 Rc7 16. c5 Bb7 17. Qb2 Qa8 18. Nd4 a6 19. N2b3 Nb8 20. Na5 Nc6 21. Naxc6 Bxc6 22. Qa3 Rec8 23. Qd3 Ra7 24. Nb3 Rd7 25. Qc2 Ng4 26. Qb2 f6 27. Bh3 f5 28. f3 Nf6 29. Qe5 Re8 30. Nd4 Rde7 31. Qd6 Bb7 32. Rc1 Rd7 33. Qb6 Rde7 34. c6 Bc8 35. c7 Qb7 36. Qxb7 Bxb7 37. Rc2 Nd7 38. Rec1 Nb6 39. c8Q Rxc8 40. Rxc8+ Nxc8 41. e4 dxe4 42. fxe4 fxe4 43. Nxe6 Nd6 44. Nc5 Nc4 45. Nxb7 Rxb7 46. Be6+ Kf8 47. Bxc4 bxc4 48. Rxc4 Re7 49. Kf1 e3 50. Ke2 Re6 51. Rc3 Rh6 52. h4 Rg6 53. Rxe3 Kf7 54. Kf2 Rf6+ 55. Rf3 Ke6 56. Rxf6+ gxf6 57. Ke3 Ke5 58. a4 f5 59. b5 axb5 60. axb5 Kd5 61. b6 Kc6 62. Kf4 1-0

[Event "Goias zt"]
[Site "Itaborai"]
[Date "2012.04.22"]
[Round "6"]
[White "Okada, William Kenji"]
[Black "De Arruda, Filho Ivo Pereira"]
[Result "1-0"]
[ECO "E62"]
[WhiteElo "1788"]
[BlackElo "1923"]
[PlyCount "121"]
[EventDate "2012.04.20"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. g3 g6 4. Bg2 Bg7 5. Nf3 0-0 6. Nc3 Re8 7. 0-0 Nc6 8. Bf4 Nh5 9. Bg5 h6 10. Bc1 e5 11. e3 Bg4 12. h3 Bxf3 13. Bxf3 exd4 14. exd4 Nf6 15. Be3 Qd7 16. Bg2 Re7 17. Qd3 Rb8 18. Rad1 a6 19. Ne2 Ne4 20. Nf4 Nd8 21. Nd5 Re8 22. Qc2 Ng5 23. h4 Nh7 24. Qd2 h5 25. Bh6 c6 26. Nb6 Qc7 27. c5 Bxh6 28. Qxh6 d5 29. Rfe1 Ne6 30. Bh3 Nhf8 31. Re5 Ng7 32. Rde1 Rxe5 33. Rxe5 Re8 34. Rxe8 Nxe8 35. Qg5 Kg7 36. b4 Nf6 37. Nc8 N8h7 38. Qe3 Ne4 39. Nd6 Nhf6 40. Qf4 Qe7 41. Nc8 Qe8 42. f3 Nc3 43. Qd2 Nb5 44. a4 Na3 45. Nd6 Qe7 46. Qd3 Qe1+ 47. Kh2 Qf2+ 48. Bg2 Nc2 49. Qf1 Qxd4 50. Nxb7 Nxb4 51. Qe2 Nd3 52. Qe7 Ne5 53. Nd8 Qd2 54. Qxe5 Qd3 55. Qe7 Qf5 56. Qxf7+ Kh6 57. Qf8+ Kh7 58. Qe7+ Kh8 59. Ne6 Ng4+ 60. fxg4 Qe5 61. Qe8+ 1-0

[Event "Goias zt"]
[Site "Itaborai"]
[Date "2012.04.22"]
[Round "5"]
[White "Okada, William Kenji"]
[Black "Silva, Vitor De Souza Mart"]
[Result "1-0"]
[ECO "A84"]
[WhiteElo "1788"]
[BlackElo "1953"]
[PlyCount "119"]
[EventDate "2012.04.20"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 f5 4. Nc3 c6 5. e3 Bd6 6. Qc2 Nf6 7. Be2 0-0 8. 0-0 Ne4 9. cxd5 exd5 10. Qb3 Kh8 11. Nd2 Rf6 12. f4 Rh6 13. Nf3 Qe7 14. Bd3 Be6 15. Qc2 Nd7 16. Bd2 Ndf6 17. Bxe4 fxe4 18. Ne5 Bf5 19. Ne2 Rg8 20. Ng3 g6 21. Qd1 a6 22. a3 Ne8 23. Qe1 Be6 24. Ne2 Nf6 25. Qg3 Rh5 26. h3 Qg7 27. b4 Bf5 28. Kf2 Be7 29. Ke1 Ne8 30. Kd1 Be6 31. Qh2 Rf5 32. g4 Rff8 33. Ng3 Bh4 34. Ne2 Qc7 35. Nc3 Nd6 36. Na4 b6 37. Rc1 Nc4 38. Ke2 Bf6 39. Nxc4 dxc4 40. Nc3 Bd5 41. g5 Bxg5 42. Qg2 Bh6 43. Qg4 Rf5 44. h4 Rgf8 45. Rg1 Qg7 46. Na4 Bxf4 47. exf4 Qxd4 48. Bc3 Qxc3 49. Nxc3 Rxf4 50. Qg3 Be6 51. Qg5 Rf2+ 52. Ke1 R8f5 53. Qd8+ Kg7 54. Qd4+ Kh6 55. Qxf2 Rxf2 56. Kxf2 c5 57. bxc5 bxc5 58. Nxe4 Bd5 59. Nxc5 a5 60. a4 1-0

[Event "Goias zt"]
[Site "Itaborai"]
[Date "2012.04.21"]
[Round "3"]
[White "Okada, William Kenji"]
[Black "Di Simoni, Rafaela Moura"]
[Result "1-0"]
[ECO "E60"]
[WhiteElo "1788"]
[BlackElo "1665"]
[PlyCount "87"]
[EventDate "2012.04.20"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 d6 6. 0-0 Nbd7 7. Bf4 Re8 8. Nc3 e5 9. dxe5 Nxe5 10. Nxe5 dxe5 11. Qxd8 Rxd8 12. Bxe5 Be6 13. b3 c6 14. Rad1 a6 15. Na4 Rxd1 16. Rxd1 Rf8 17. Nc5 Bc8 18. Ba1 Bg4 19. f3 Bc8 20. e4 b6 21. Na4 b5 22. cxb5 cxb5 23. Nc5 Re8 24. h3 Bf8 25. Nd3 Rd8 26. Bxf6 Bc5+ 27. Kh2 Rd7 28. Rc1 Rxd3 29. Rxc5 Be6 30. Rc6 Kf8 31. Rxa6 Ke8 32. Ra8+ Kd7 33. Rd8+ Kc7 34. Rxd3 Kb6 35. f4 h6 36. Bd8+ Ka7 37. f5 Bc8 38. Rc3 gxf5 39. exf5 Bd7 40. Rc7+ Ka6 41. Rxd7 h5 42. a4 f6 43. Bf1 h4 44. axb5# 1-0

[Event "Goias zt"]
[Site "Itaborai"]
[Date "2012.04.21"]
[Round "4"]
[White "Silva, Gustavo Queiroz Dos"]
[Black "Okada, William Kenji"]
[Result "1-0"]
[ECO "B53"]
[WhiteElo "1941"]
[BlackElo "1788"]
[PlyCount "83"]
[EventDate "2012.04.20"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 a6 6. Bxc6+ bxc6 7. c4 Nf6 8. Nc3 e6 9. e5 Ng8 10. 0-0 Ne7 11. Qxd6 Qxd6 12. exd6 Nf5 13. c5 h5 14. Na4 g5 15. Nb6 Rb8 16. Ne5 Nxd6 17. Nxc6 Rb7 18. Rd1 Rxb6 19. cxb6 f6 20. Be3 Bb7 21. Na5 Bd5 22. Rxd5 exd5 23. b7 Nxb7 24. Nxb7 Rh7 25. Nc5 a5 26. Re1 Kf7 27. Nb7 Bb4 28. Rc1 Kg6 29. Nc5 g4 30. a3 Bxc5 31. Rxc5 Rb7 32. Rxd5 Rxb2 33. g3 h4 34. gxh4 f5 35. Rxa5 Kh5 36. Ra6 g3 37. Rh6+ Kg4 38. hxg3 Kh3 39. Rc6 Ra2 40. h5 Rxa3 41. h6 Ra1+ 42. Rc1 1-0

[Event "Goias zt"]
[Site "Itaborai"]
[Date "2012.04.20"]
[Round "2"]
[White "Franca, Jairo Jr"]
[Black "Okada, William Kenji"]
[Result "0-1"]
[ECO "E97"]
[WhiteElo "1800"]
[BlackElo "1788"]
[PlyCount "54"]
[EventDate "2012.04.20"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. e4 0-0 6. Be2 Nc6 7. 0-0 e5 8. d5 Ne7 9. h3 Nd7 10. a3 f5 11. exf5 gxf5 12. Bg5 Nf6 13. Qc2 Qe8 14. Ne1 Kh8 15. f3 Rg8 16. Bh4 Ng6 17. Bg5 Nh5 18. Kh2 f4 19. Ne4 h6 20. Nd3 hxg5 21. Nxd6 Qe7 22. Ne4 Nh4 23. Rg1 Nf5 24. c5 Ne3 25. Qb3 Bf5 26. Nef2 Bxd3 27. Nxd3 Ng3 0-1

[Event "Goias zt"]
[Site "Itaborai"]
[Date "2012.04.20"]
[Round "1"]
[White "Okada, William Kenji"]
[Black "Mariano, Marceley Martins"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "1788"]
[BlackElo "2088"]
[PlyCount "102"]
[EventDate "2012.04.20"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. g3 dxc4 4. Nf3 b5 5. Bg2 Bb7 6. a4 Nd7 7. Bf4 Ngf6 8. 0-0 e6 9. axb5 cxb5 10. Nc3 a6 11. Re1 Be7 12. Qc2 0-0 13. e4 Qb6 14. d5 Bc5 15. Rad1 Rae8 16. dxe6 fxe6 17. e5 Bxf3 18. Bxf3 Nd5 19. Nxd5 exd5 20. Bxd5+ Kh8 21. Bg2 Qe6 22. Re2 h6 23. Qd2 Re7 24. Bd5 Qg4 25. h3 Qxh3 26. Bc6 Nb6 27. Bg2 Qg4 28. Rde1 Rd7 29. Qc1 Nd5 30. Bd2 Qxg3 31. Rf1 Rf5 32. Be3 Nxe3 33. fxe3 Rxf1+ 34. Kxf1 Qxe5 35. Qe1 Rf7+ 36. Kg1 Bd6 37. Qh4 Be7 38. Qg4 Qf5 39. Qd4 Qb1+ 40. Kh2 Qg6 41. Kg1 Bd6 42. Rd2 Rd7 43. Qc3 Qb1+ 44. Kf2 Rf7+ 45. Ke2 Bg3 46. Rd8+ Kh7 47. Bf3 Qf5 48. e4 Qh3 49. e5 Qh2+ 50. Kd1 Qg1+ 51. Kd2 Bxe5 0-1

[Event "Goiania op"]
[Site "Goiania"]
[Date "2012.03.11"]
[Round "6"]
[White "Okada, William Kenji"]
[Black "De Paula, Luciano Alves"]
[Result "1-0"]
[ECO "E07"]
[WhiteElo "1788"]
[BlackElo "1820"]
[PlyCount "53"]
[EventDate "2012.03.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. g3 Nf6 4. Bg2 e6 5. Nf3 Nbd7 6. 0-0 Be7 7. b3 0-0 8. Bb2 Qc7 9. Nc3 b6 10. Rc1 dxc4 11. bxc4 Bb7 12. e4 Bb4 13. e5 Ne8 14. Ne4 Rd8 15. Qb3 c5 16. Neg5 Bxf3 17. Nxf3 f6 18. d5 Nxe5 19. Nxe5 fxe5 20. dxe6 Qd6 21. Rcd1 Qc7 22. Rxd8 Qxd8 23. Bxe5 Nc7 24. Rd1 Qc8 25. Bd5 Nxe6 26. Qe3 Kh8 27. Bxe6 1-0

[Event "Goiania op"]
[Site "Goiania"]
[Date "2012.03.11"]
[Round "5"]
[White "Rezende, Guilherme Vilela"]
[Black "Okada, William Kenji"]
[Result "1/2-1/2"]
[ECO "A16"]
[WhiteElo "2039"]
[BlackElo "1788"]
[PlyCount "64"]
[EventDate "2012.03.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. c4 Nf6 2. e3 g6 3. g3 Bg7 4. Bg2 0-0 5. Ne2 d6 6. Nbc3 Nbd7 7. b4 Ne5 8. d3 Bg4 9. 0-0 Bf3 10. Bxf3 Nxf3+ 11. Kg2 Ne5 12. f4 Ned7 13. e4 e6 14. h3 c6 15. Be3 Ne8 16. d4 Nb6 17. Qd3 d5 18. cxd5 cxd5 19. e5 Nc4 20. a4 a5 21. b5 b6 22. Bc1 f5 23. Ba3 Rf7 24. Rh1 Nc7 25. g4 Qh4 26. g5 h6 27. Qg3 Qxg3+ 28. Kxg3 h5 29. Rhc1 Ne8 30. Nd1 Bf8 31. Bxf8 Kxf8 32. Ra2 Rc8 1/2-1/2

[Event "Goiania op"]
[Site "Goiania"]
[Date "2012.03.10"]
[Round "4"]
[White "De Paula, Guilherme Bueno"]
[Black "Okada, William Kenji"]
[Result "1/2-1/2"]
[ECO "A54"]
[WhiteElo "2032"]
[BlackElo "1788"]
[PlyCount "69"]
[EventDate "2012.03.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. g3 e5 2. c4 Nf6 3. Bg2 Be7 4. Nf3 d6 5. 0-0 0-0 6. d4 Nc6 7. Nc3 Bf5 8. d5 Nb8 9. Nh4 Bc8 10. Qc2 Re8 11. Nf5 Bf8 12. Bg5 Bxf5 13. Qxf5 Nbd7 14. Ne4 Be7 15. Bxf6 Nxf6 16. b4 Nxe4 17. Qxe4 Qd7 18. Qc2 f5 19. Bh3 Rf8 20. e4 g6 21. c5 Rf7 22. f4 exf4 23. Rxf4 dxc5 24. bxc5 Qb5 25. exf5 Bxc5+ 26. Kh1 Bd6 27. fxg6 Rxf4 28. gxh7+ Kh8 29. gxf4 Qxd5+ 30. Bg2 Qd4 31. Rf1 Bxf4 32. Be4 Bd6 33. Qg2 Re8 34. Bd5 Qg7 35. Qxg7+ 1/2-1/2

[Event "Goiania op"]
[Site "Goiania"]
[Date "2012.03.10"]
[Round "3"]
[White "Okada, William Kenji"]
[Black "Garcia, Gabriel Gonzaga"]
[Result "1/2-1/2"]
[ECO "A52"]
[WhiteElo "1788"]
[BlackElo "1893"]
[PlyCount "105"]
[EventDate "2012.03.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4 Bb4+ 5. Nd2 Nc6 6. Ngf3 Qe7 7. a3 Bxd2+ 8. Qxd2 Ngxe5 9. Nxe5 Nxe5 10. e3 b6 11. Qd5 Nc6 12. Bxc7 Bb7 13. Qd2 Qg5 14. Bf4 Qf6 15. Rd1 0-0 16. Be2 Ne5 17. 0-0 Ng6 18. Bg3 Rfd8 19. f3 d5 20. cxd5 Rxd5 21. Qb4 Rc5 22. Rd7 Rc2 23. Bc4 Bc8 24. Rd6 Be6 25. Bxe6 fxe6 26. Qe4 Rac8 27. Rxe6 Qxb2 28. Bd6 Nf8 29. Re7 Rxg2+ 30. Kh1 Rg6 31. Bg3 Rc2 32. f4 Rh6 33. Qd5+ Kh8 34. Re8 Rcxh2+ 35. Kg1 Rh1+ 36. Qxh1 Rxh1+ 37. Kxh1 Kg8 38. f5 Kf7 39. Rb8 Qxa3 40. Rb7+ Kg8 41. Be5 Nd7 42. Rxd7 Qxe3 43. Rxg7+ Kf8 44. Bf6 Qh3+ 45. Kg1 Qe3+ 46. Kg2 Qd2+ 47. Rf2 Qd5+ 48. Rf3 Qd2+ 49. Kg1 Qe1+ 50. Rf1 Qe3+ 51. Rf2 Qe1+ 52. Rf1 Qe3+ 53. Rf2 1/2-1/2

[Event "Goiania op"]
[Site "Goiania"]
[Date "2012.03.09"]
[Round "2"]
[White "De Oliveira, Aquiles Machado"]
[Black "Okada, William Kenji"]
[Result "1/2-1/2"]
[ECO "B08"]
[WhiteElo "2096"]
[BlackElo "1788"]
[PlyCount "95"]
[EventDate "2012.03.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. Nc3 Nf6 2. e4 d6 3. d4 g6 4. Nf3 Bg7 5. Be2 0-0 6. 0-0 Nbd7 7. e5 Ne8 8. Bf4 e6 9. Ne4 d5 10. Ng3 c5 11. c3 b6 12. Qd2 Bb7 13. Rfe1 Nc7 14. Bh6 Rc8 15. h4 a5 16. h5 Na6 17. a3 Nab8 18. Bd3 Nc6 19. Rac1 a4 20. Bxg7 Kxg7 21. Bb5 Na5 22. Bxa4 Nc4 23. Qf4 f5 24. Re2 Ba6 25. Rec2 Na5 26. Bxd7 Qxd7 27. Qg5 f4 28. h6+ Kh8 29. Ne2 Bd3 30. Rd2 c4 31. Nxf4 Nb3 32. Nxd3 cxd3 33. Rxd3 Nxc1 34. Qxc1 Qb5 35. Qd2 Qb3 36. Qg5 Qc2 37. Rd2 Qf5 38. Qe7 Rf7 39. Qd6 Rcf8 40. Qxb6 Qb1+ 41. Kh2 Qe4 42. Kg1 Qg4 43. Kf1 Qe4 44. Qb3 Rxf3 45. gxf3 Qxf3 46. Qb7 Qh1+ 47. Ke2 Qf3+ 48. Ke1 1/2-1/2

[Event "Goiania op"]
[Site "Goiania"]
[Date "2012.03.09"]
[Round "1"]
[White "Okada, William Kenji"]
[Black "Barbalho, Geisa Nascimento"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "1788"]
[BlackElo "1755"]
[PlyCount "57"]
[EventDate "2012.03.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. Nf3 e6 4. g3 Nf6 5. Bg2 g6 6. 0-0 Bg7 7. e3 0-0 8. Qc2 Nb4 9. Qd1 Qe7 10. b3 c5 11. Bb2 Nc6 12. Nc3 e5 13. cxd5 Nb4 14. dxe5 Nh5 15. a3 Na6 16. d6 Qd8 17. Nd5 Be6 18. Ne7+ Kh8 19. Ng5 Qd7 20. f4 h6 21. Nxe6 Qxe6 22. g4 Rfe8 23. gxh5 Rxe7 24. dxe7 Qxe7 25. Qg4 f5 26. Qxg6 Kg8 27. Qxf5 Qf7 28. Qxf7+ Kxf7 29. Bxb7 1-0

[Event "BRA-ch Amateur"]
[Site "Goiania"]
[Date "2012.02.21"]
[Round "7"]
[White "Chaves, Thiago de Melo Neve"]
[Black "Okada, William Kenji"]
[Result "0-1"]
[ECO "A47"]
[WhiteElo "1982"]
[BlackElo "1740"]
[PlyCount "70"]
[EventDate "2012.02.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. Nf3 b6 2. g3 Bb7 3. Bg2 Nf6 4. 0-0 e6 5. d4 c5 6. Nc3 a6 7. a4 d5 8. Bf4 Nc6 9. e3 Be7 10. Ne5 0-0 11. Nxc6 Bxc6 12. Be5 Nd7 13. f4 f6 14. Bh3 fxe5 15. Bxe6+ Kh8 16. dxe5 d4 17. Nd5 Nxe5 18. e4 Nc4 19. Qh5 Bxd5 20. exd5 Ne3 21. Rf3 c4 22. g4 Bc5 23. Rh3 h6 24. g5 Qe8 25. g6 Qe7 26. Qe5 Qf6 27. Qc7 Qxf4 28. Qxf4 Rxf4 29. Kh1 d3 30. cxd3 cxd3 31. Rg1 d2 32. d6 d1Q 33. Rxd1 Nxd1 34. Kg2 Ne3+ 35. Kg3 Bxd6 0-1

[Event "BRA-ch Amateur"]
[Site "Goiania"]
[Date "2012.02.20"]
[Round "5"]
[White "De Almeida, Guilherme Pereira"]
[Black "Okada, William Kenji"]
[Result "0-1"]
[ECO "A07"]
[WhiteElo "1876"]
[BlackElo "1740"]
[PlyCount "146"]
[EventDate "2012.02.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. 0-0 Bd6 5. d3 0-0 6. Nbd2 Nbd7 7. e4 c6 8. Re1 Be7 9. e5 Ne8 10. Nf1 c5 11. h4 Qc7 12. Bf4 b6 13. Qe2 Bb7 14. h5 h6 15. Ne3 Rd8 16. Ng4 Kh7 17. Nfh2 Rh8 18. Nf1 Qc8 19. Qf3 Rf8 20. c3 Nc7 21. Qe2 Rde8 22. Nd2 Bd8 23. d4 f5 24. exf6 Bxf6 25. Qd3+ Kh8 26. Qg6 cxd4 27. cxd4 Bxd4 28. Bd6 Rf5 29. Rxe6 Rxe6 30. Qxf5 Rxd6 31. Qf4 Bc5 32. b4 Ne6 33. Qf5 Bxb4 34. Nf3 Nec5 35. Nh4 Nf8 36. Qf7 Rd7 37. Qf5 Re7 38. Qxf8+ Qxf8 39. Ng6+ Kg8 40. Nxf8 Kxf8 41. Ne3 Bc3 42. Rd1 d4 43. Bxb7 Nxb7 44. Nf5 Re1+ 45. Rxe1 Bxe1 46. Nxd4 Bc3 47. Nb5 Bb4 48. Nxa7 Nd6 49. Kg2 Bc5 50. Nc6 Ne4 51. f3 Nc3 52. a3 Bxa3 53. Nd4 Kf7 54. g4 Bc5 55. Nb3 Nd5 56. Kh3 Bd6 57. Kg2 Bf4 58. Kf2 Be3+ 59. Ke2 Ke6 60. Kd3 Ke5 61. Kc4 Nc7 62. Kd3 Kf4 63. Ke2 Ne6 64. Na1 Nd4+ 65. Kd3 Kxf3 66. Kc4 Kxg4 67. Kd5 Kf4 68. Kd6 Ke4 69. Ke7 Bd2 70. Kf7 Bc3 71. Kxg7 Bxa1 72. Kxh6 Nf5+ 73. Kh7 b5 0-1

[Event "BRA-ch Amateur"]
[Site "Goiania"]
[Date "2012.02.20"]
[Round "6"]
[White "Okada, William Kenji"]
[Black "Sa, Antonio Villar Marq"]
[Result "1/2-1/2"]
[ECO "A60"]
[WhiteElo "1740"]
[BlackElo "2048"]
[PlyCount "93"]
[EventDate "2012.02.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Bg2 b5 7. Nf3 Bb7 8. Bg5 Be7 9. Bxf6 Bxf6 10. Qd2 b4 11. 0-0 Nd7 12. a3 a5 13. e4 0-0 14. Qc2 Nb6 15. Nbd2 Qd7 16. axb4 cxb4 17. Rac1 Rfc8 18. Qb1 a4 19. Rfd1 Ba6 20. Rc6 Nc4 21. Nxc4 Bxc4 22. Nd4 Bxd4 23. Rxd4 Rxc6 24. dxc6 Qxc6 25. Qc2 Rc8 26. Bf1 Bxf1 27. Qxc6 Rxc6 28. Kxf1 Rb6 29. e5 Kf8 30. exd6 Ke8 31. Ke2 a3 32. bxa3 b3 33. Rd1 b2 34. Rb1 Kd7 35. Kd2 Rb3 36. Kc2 Rxa3 37. Rxb2 Rf3 38. Kd1 Kxd6 39. Ke2 Rf5 40. Ra2 Ke7 41. Ke3 Kf6 42. h4 g5 43. Ra6+ Kg7 44. hxg5 Rxg5 45. Kf4 Rb5 46. Kg4 Rb4+ 47. f4 1/2-1/2

[Event "BRA-ch Amateur"]
[Site "Goiania"]
[Date "2012.02.19"]
[Round "4"]
[White "Okada, William Kenji"]
[Black "De Melo, Raissa Vieira"]
[Result "1-0"]
[ECO "D26"]
[WhiteElo "1740"]
[BlackElo "1459"]
[PlyCount "47"]
[EventDate "2012.02.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nf3 c5 6. 0-0 Nc6 7. Nc3 a6 8. a4 cxd4 9. exd4 Be7 10. Bf4 0-0 11. Re1 Nb4 12. Qb3 Nfd5 13. Bg3 Nxc3 14. bxc3 Nd5 15. Bxd5 exd5 16. Rad1 Re8 17. c4 dxc4 18. Qxc4 Bd7 19. Ne5 Rf8 20. d5 Bf5 21. Qb3 Bc8 22. Nc4 Re8 23. Nb6 Ra7 24. Bb8 1-0

[Event "BRA-ch Amateur"]
[Site "Goiania"]
[Date "2012.02.18"]
[Round "1"]
[White "De Paula, Rafael Figueiredo"]
[Black "Okada, William Kenji"]
[Result "1-0"]
[ECO "B98"]
[WhiteElo "2047"]
[BlackElo "1740"]
[PlyCount "59"]
[EventDate "2012.02.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. 0-0-0 Bd7 10. e5 dxe5 11. fxe5 Nd5 12. Bxe7 Nxe7 13. Bd3 Nbc6 14. Nxc6 Nxc6 15. Bb5 Nxe5 16. Bxd7+ Nxd7 17. Ne4 0-0 18. Nd6 Nc5 19. Rhf1 Rad8 20. Qf4 Rd7 21. Rd4 Re7 22. Qg3 Qb6 23. Rfd1 Qa5 24. Kb1 Qb6 25. h4 f6 26. h5 e5 27. Nf5 Rc7 28. Rd7 Ne6 29. Ne7+ Kf7 30. Nc8+ 1-0

[Event "BRA-ch Amateur"]
[Site "Goiania"]
[Date "2012.02.18"]
[Round "2"]
[White "Okada, William Kenji"]
[Black "Brito, Paulo Roberto Ferr"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "1740"]
[BlackElo "1771"]
[PlyCount "141"]
[EventDate "2012.02.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. Nf3 0-0 6. 0-0 c5 7. cxd5 exd5 8. dxc5 Bxc5 9. Qc2 Qb6 10. Nc3 Be6 11. b3 Rc8 12. Qd3 Nc6 13. Na4 Qa5 14. a3 Be7 15. Bd2 Qc7 16. b4 Ne5 17. Nxe5 Qxe5 18. Bf4 Qf5 19. Qxf5 Bxf5 20. Rac1 b6 21. Nc3 Be6 22. Nb5 Ne8 23. Nd4 g5 24. Be3 Nd6 25. Nc6 Bf6 26. Nd4 Rxc1 27. Rxc1 Rc8 28. Rxc8+ Nxc8 29. Nxe6 fxe6 30. Kf1 h6 31. Bd2 Nd6 32. Bc1 b5 33. Bf3 Kf7 34. Be3 Nc4 35. Bh5+ Kf8 36. Bxa7 Nxa3 37. Bg4 Kf7 38. Bc5 Be7 39. Bh5+ Kf8 40. Bxe7+ Kxe7 41. Bg6 Kd6 42. e3 e5 43. Ke2 e4 44. Kd2 Nc4+ 45. Kc3 Ne5 46. Bh5 Nd3 47. f4 gxf4 48. gxf4 Ne1 49. Be8 Ng2 50. Kd2 Nh4 51. h3 Nf3+ 52. Kc3 Nh4 53. Bxb5 Nf5 54. Kd2 Kc7 55. Be8 Kb6 56. Bd7 Nd6 57. Kc3 Kc7 58. Be6 Nb5+ 59. Kd2 Kd6 60. Bc8 Kc7 61. Ba6 Nd6 62. Be2 Kb6 63. Bg4 Nc4+ 64. Ke2 Kb5 65. Be6 Kc6 66. f5 Kd6 67. b5 Ke5 68. Kf2 Nb6 69. Kg3 Kf6 70. Kf4 h5 71. h4 1-0

[Event "Wch U12"]
[Site "Caldas Novas"]
[Date "2011.11.22"]
[Round "5"]
[White "Okada, William Kenji"]
[Black "Gonzalez Carrillo, Javier Omar"]
[Result "1-0"]
[ECO "E65"]
[WhiteElo "1765"]
[PlyCount "107"]
[EventDate "2011.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. Nf3 0-0 6. 0-0 Nbd7 7. Nc3 c5 8. e3 Qb6 9. Re1 e5 10. d5 Ne8 11. e4 f5 12. Nd2 f4 13. Nf3 Qb4 14. Qd3 a5 15. Bd2 Qb6 16. b3 Qd8 17. h3 g5 18. gxf4 exf4 19. Rad1 Ne5 20. Nxe5 Bxe5 21. Rf1 Qf6 22. f3 Qh6 23. Qe2 Bxh3 24. Bxh3 Qxh3 25. Qg2 Qxg2+ 26. Kxg2 h6 27. Nb5 a4 28. b4 b6 29. bxc5 bxc5 30. Rb1 Rf7 31. Bc3 Rd7 32. Bxe5 dxe5 33. Rfd1 a3 34. Rb3 Nd6 35. Nxd6 Rxd6 36. Rb5 Ra4 37. Rxc5 Rb4 38. Rd3 Rb2+ 39. Kh3 Rxa2 40. Ra5 Rc2 41. c5 Rd8 42. Rdxa3 Rc8 43. c6 Kf8 44. Ra7 Rb2 45. Rh7 Kg8 46. Rxh6 Kg7 47. Rd6 Rh8+ 48. Kg4 Rg2+ 49. Kf5 Rf8+ 50. Kxe5 Re8+ 51. Re6 Rxe6+ 52. Kxe6 g4 53. fxg4 Rxg4 54. c7 1-0

[Event "Wch U12"]
[Site "Caldas Novas"]
[Date "2011.11.20"]
[Round "4"]
[White "Espinoza Robles, Diego"]
[Black "Okada, William Kenji"]
[Result "1/2-1/2"]
[ECO "B20"]
[WhiteElo "1463"]
[BlackElo "1765"]
[PlyCount "94"]
[EventDate "2011.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Ne2 d6 3. d3 Nc6 4. Be3 Nf6 5. Nbc3 e6 6. g3 Be7 7. Bg2 Bd7 8. 0-0 0-0 9. h3 a6 10. f4 Qc7 11. g4 Rad8 12. Ng3 Bc8 13. Nce2 Rfe8 14. g5 Nd7 15. h4 Nf8 16. h5 d5 17. Qe1 Nb4 18. Qc3 Qb6 19. Qb3 Qd6 20. e5 Qc7 21. a3 Nc6 22. Rad1 d4 23. Bd2 b5 24. Ne4 Qb6 25. a4 b4 26. N2g3 Na5 27. Qa2 c4 28. b3 c3 29. Be1 Nc6 30. Qb1 Qc7 31. Bf2 a5 32. Rde1 g6 33. Qd1 Bb7 34. Qg4 Ba8 35. Qh4 Rc8 36. hxg6 fxg6 37. Qh6 Rcd8 38. Nf6+ Bxf6 39. gxf6 Rd7 40. Ne4 Red8 41. Bh4 Rb8 42. Nd6 Nd8 43. Ne8 Qa7 44. Bxa8 Qxa8 45. Rf2 Qc6 46. Ref1 Ra7 47. f7+ Rxf7 1/2-1/2

[Event "Wch U12"]
[Site "Caldas Novas"]
[Date "2011.11.20"]
[Round "3"]
[White "Okada, William Kenji"]
[Black "Virtanen, Teemu"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "1765"]
[PlyCount "86"]
[EventDate "2011.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 d6 2. c4 c6 3. g3 Nf6 4. Bg2 g6 5. Nc3 Bg7 6. Nf3 Bf5 7. 0-0 Qd7 8. Bf4 h6 9. Re1 g5 10. Bc1 Bh3 11. e4 Bxg2 12. Kxg2 Na6 13. e5 Nh7 14. exd6 Qxd6 15. Ne4 Qc7 16. Ne5 0-0 17. Nf3 Rad8 18. Be3 e5 19. d5 b6 20. Rc1 f5 21. Nc3 f4 22. Bd2 Nc5 23. Qc2 Rde8 24. b4 Nb7 25. Ne4 fxg3 26. hxg3 cxd5 27. cxd5 Qf7 28. Qb3 Rd8 29. a3 Nd6 30. Nxd6 Rxd6 31. Re2 Rf6 32. Nxe5 Rxf2+ 33. Rxf2 Qxf2+ 34. Kh1 Bxe5 35. d6+ Qf7 36. Qc2 Bxg3 37. Bc3 Bxd6 38. Rd1 Rd8 39. Qd3 Qh5+ 40. Kg2 Qh2+ 41. Kf1 Qh1+ 42. Ke2 Qg2+ 43. Ke3 Bf4# 0-1

[Event "Goiania op"]
[Site "Goiania"]
[Date "2011.09.18"]
[Round "6"]
[White "Borges, Francisco Antonio"]
[Black "Okada, William Kenji"]
[Result "0-1"]
[ECO "B50"]
[BlackElo "1772"]
[PlyCount "100"]
[EventDate "2011.09.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bc4 Nf6 4. 0-0 Nxe4 5. d3 Nf6 6. Ng5 e6 7. Bb5+ Bd7 8. Bxd7+ Nbxd7 9. Nc3 Be7 10. Nf3 0-0 11. Bg5 d5 12. Qd2 a6 13. Ne2 Qc7 14. Bf4 Bd6 15. Bxd6 Qxd6 16. Qf4 e5 17. Qf5 Rfe8 18. Ng5 Qb6 19. Nxh7 Nxh7 20. Qxd7 Nf6 21. Qf5 Qxb2 22. Rfc1 Qb6 23. Rab1 Qc6 24. Ng3 b5 25. Nh5 Nxh5 26. Qxh5 e4 27. Re1 exd3 28. Rxe8+ Rxe8 29. cxd3 c4 30. Qd1 Qg6 31. dxc4 dxc4 32. Rc1 Qd3 33. Qxd3 cxd3 34. Rd1 Re2 35. h3 Rxa2 36. Rxd3 Rc2 37. Rd8+ Kh7 38. Rd6 Rc1+ 39. Kh2 a5 40. Rd5 Rb1 41. Rf5 Kg6 42. g4 a4 43. h4 a3 44. h5+ Kh7 45. Rxf7 a2 46. g5 a1Q 47. g6+ Kh6 48. Rf5 Rh1+ 49. Kg2 Qg1+ 50. Kf3 Rh3+ 0-1

[Event "Goiania op"]
[Site "Goiania"]
[Date "2011.09.18"]
[Round "5"]
[White "Okada, William Kenji"]
[Black "Souza, Lucas Alves Ferreir"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "1772"]
[PlyCount "37"]
[EventDate "2011.09.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. g3 c6 4. Bg2 Nf6 5. Nf3 Bb4+ 6. Nbd2 dxc4 7. Qc2 c3 8. bxc3 Be7 9. 0-0 0-0 10. Bb2 Nbd7 11. Rfd1 b6 12. Nc4 Qc7 13. Nfe5 Bb7 14. Nxd7 Qxd7 15. e4 Qc7 16. Ne3 c5 17. d5 Rad8 18. c4 a6 19. e5 1-0

[Event "Goiania op"]
[Site "Goiania"]
[Date "2011.09.17"]
[Round "4"]
[White "Mariano, Marceley Martins"]
[Black "Okada, William Kenji"]
[Result "1-0"]
[ECO "B98"]
[WhiteElo "2069"]
[BlackElo "1772"]
[PlyCount "165"]
[EventDate "2011.09.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Nc6 9. 0-0-0 Bd7 10. Nb3 b5 11. Bd3 b4 12. Ne2 a5 13. Nbd4 Nxd4 14. Nxd4 a4 15. Rhe1 Qb6 16. Bxf6 gxf6 17. e5 Rc8 18. exd6 Bxd6 19. Nf5 Bf8 20. b3 axb3 21. axb3 Qa5 22. Kd2 Qc5 23. Ne3 Bh6 24. Ng4 Bg7 25. Qg3 Rd8 26. Kc1 Qc3 27. Bc4 Ra8 28. Qxc3 bxc3 29. Kb1 Ra7 30. f5 e5 31. Ne3 0-0 32. Nd5 Bxf5 33. Nxc3 Rb8 34. Nb5 Ra5 35. Nd6 Bg6 36. g4 Rba8 37. Nf5 Bf8 38. c3 e4 39. b4 Rb8 40. Kc2 Ra7 41. Rxe4 Rc7 42. Kb3 Rbc8 43. Rd3 Rb8 44. h4 h5 45. Rd5 Kh7 46. gxh5 Bxh5 47. Nd4 Bd1+ 48. Nc2 Bf3 49. Bd3 Bxe4 50. Bxe4+ Kg7 51. Rh5 Re7 52. Bc6 Rc7 53. Bd5 Rc5 54. Rf5 Kg6 55. Ne3 Rc7 56. h5+ Kg7 57. Ng4 Be7 58. h6+ Kg6 59. Be4 Rcc8 60. Rd5+ f5 61. Bxf5+ Kg5 62. Bxc8+ Kf4 63. Bf5 Bf8 64. h7 Bg7 65. c4 Rb7 66. Nf2 Rb8 67. Nd3+ Ke3 68. c5 Rb7 69. c6 Rc7 70. b5 Bh8 71. Bd7 Ke4 72. Nb4 Bg7 73. b6 Rxc6 74. Bxc6 Ke3 75. b7 f5 76. b8Q f4 77. Rd3+ Ke2 78. Bf3+ Kf2 79. Qb6+ Bd4 80. Qxd4+ Kg3 81. Qg1+ Kh3 82. Qg2+ Kh4 83. Qg4# 1-0

[Event "Goiania op"]
[Site "Goiania"]
[Date "2011.09.17"]
[Round "3"]
[White "Okada, William Kenji"]
[Black "Matos, Bruno Tavares"]
[Result "1-0"]
[ECO "A84"]
[WhiteElo "1772"]
[PlyCount "43"]
[EventDate "2011.09.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 f5 2. c4 Nc6 3. g3 e6 4. Bg2 Bd6 5. Nf3 Qf6 6. Nc3 Nge7 7. 0-0 b6 8. d5 exd5 9. Nxd5 Nxd5 10. cxd5 Ne5 11. Nxe5 Qxe5 12. Bf4 Qf6 13. Bxd6 Qxd6 14. e3 Ba6 15. Re1 Qc6 16. dxc6 dxc6 17. Bxc6+ Ke7 18. e4 f4 19. Qd7+ Kf6 20. e5+ Kg6 21. Bf3 Rae8 22. h4 1-0

[Event "Goiania op"]
[Site "Goiania"]
[Date "2011.09.16"]
[Round "2"]
[White "Barbosa, Evandro Amorim"]
[Black "Okada, William Kenji"]
[Result "1-0"]
[ECO "B84"]
[WhiteElo "2383"]
[BlackElo "1772"]
[PlyCount "65"]
[EventDate "2011.09.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. 0-0 Be7 8. f4 0-0 9. a4 b6 10. Bf3 Ra7 11. Be3 Bb7 12. a5 d5 13. Nxe6 fxe6 14. Bxb6 Qc8 15. Bxa7 dxe4 16. Be2 Nd5 17. Nxd5 exd5 18. Bg4 Qc7 19. Be6+ Kh8 20. Qh5 Qc6 21. f5 Nd7 22. Bd4 Nf6 23. Qd1 Bc5 24. c3 Bd6 25. h3 Rd8 26. Qe2 Qe8 27. Rad1 Bc7 28. Qe3 Qe7 29. g4 Re8 30. Qe2 Qd6 31. Qg2 Bc8 32. g5 Nh5 33. Bf7 1-0

[Event "Goiania op"]
[Site "Goiania"]
[Date "2011.09.16"]
[Round "1"]
[White "Okada, William Kenji"]
[Black "Gontijo, Isabella da Silva"]
[Result "1-0"]
[ECO "D07"]
[WhiteElo "1772"]
[PlyCount "37"]
[EventDate "2011.09.16"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. g3 Bf5 4. Bg2 Nf6 5. Nc3 e6 6. Nf3 Bd6 7. Bg5 0-0 8. cxd5 Bb4 9. dxc6 Bd6 10. cxb7 Rb8 11. Ne5 Bxe5 12. dxe5 a5 13. exf6 c5 14. Qxd8 Rbxd8 15. fxg7 Rd7 16. gxf8Q+ Kxf8 17. b8Q+ Kg7 18. Qe5+ Kf8 19. Qh8# 1-0

[Event "Goiania Interamerica Schools"]
[Site "Goiania"]
[Date "2011.06.19"]
[Round "5"]
[White "Okada, William Kenji"]
[Black "Cavalcante, Diego Xavier"]
[Result "1-0"]
[ECO "A90"]
[WhiteElo "1791"]
[PlyCount "71"]
[EventDate "2011.06.18"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 c6 5. Nf3 d5 6. Nbd2 Bd6 7. 0-0 0-0 8. b3 Bd7 9. Bb2 Be8 10. Ne1 Nbd7 11. Nd3 Bg6 12. e3 Ne4 13. Qe1 Ndf6 14. f3 Nxd2 15. Qxd2 Qe7 16. Rfe1 Rad8 17. Re2 dxc4 18. bxc4 c5 19. e4 fxe4 20. fxe4 Ng4 21. e5 Bxd3 22. Qxd3 Bc7 23. d5 exd5 24. cxd5 c4 25. Qxc4 Bb6+ 26. Bd4 Rc8 27. Qb4 Nxh2 28. Kxh2 Qg5 29. Re4 Qg6 30. Bxb6 axb6 31. e6 Rf2 32. e7 Qh5+ 33. Rh4 Rxg2+ 34. Kxg2 Qxd5+ 35. Qe4 Rc2+ 36. Kh3 1-0

[Event "Goiania Interamerica Schools"]
[Site "Goiania"]
[Date "2011.06.19"]
[Round "4"]
[White "Silva, Gustavo Queiroz Dos"]
[Black "Okada, William Kenji"]
[Result "1/2-1/2"]
[ECO "B33"]
[BlackElo "1791"]
[PlyCount "33"]
[EventDate "2011.06.18"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 Bg5 12. Nc2 0-0 13. a4 bxa4 14. Rxa4 f5 15. Bd3 fxe4 16. Bxe4 Ra7 17. 0-0 1/2-1/2

[Event "Goiania Interamerica Schools"]
[Site "Goiania"]
[Date "2011.06.18"]
[Round "1"]
[White "Filho, Denys Camargo Guima"]
[Black "Okada, William Kenji"]
[Result "0-1"]
[ECO "B50"]
[BlackElo "1791"]
[PlyCount "42"]
[EventDate "2011.06.18"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Nf3 Nf6 4. d3 d6 5. Na4 e6 6. Be3 Be7 7. d4 cxd4 8. Bxd4 Nxd4 9. Nxd4 Nxe4 10. Bd3 Nf6 11. Bb5+ Bd7 12. Bd3 Bxa4 13. Be4 Nxe4 14. 0-0 d5 15. b3 Bc6 16. f3 Nc3 17. Qd2 Nb5 18. Qb4 Bxb4 19. Nxb5 Qb6+ 20. Kh1 Bxb5 21. Rfd1 Qe3 0-1

[Event "Goiania Interamerica Schools"]
[Site "Goiania"]
[Date "2011.06.18"]
[Round "3"]
[White "Okada, William Kenji"]
[Black "Castro, Arthur Evangelista"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "1791"]
[PlyCount "43"]
[EventDate "2011.06.18"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nc6 3. g3 Nb4 4. Bg2 Qf6 5. Nc3 Nh6 6. Nf3 Bd6 7. e4 0-0 8. e5 Qf5 9. 0-0 b6 10. exd6 cxd6 11. Nh4 Qf6 12. Bxa8 Ba6 13. Bg2 Bxc4 14. Re1 Bxa2 15. Ne4 Nf5 16. Nxf6+ gxf6 17. Qg4+ Kh8 18. Nxf5 exf5 19. Qxf5 Rc8 20. Qxf6+ Kg8 21. Bh6 Rc7 22. Qg7# 1-0

[Event "BRA-ch U12"]
[Site "Catanduva"]
[Date "2011.04.??"]
[Round "7.5"]
[White "Galvao De Melo Barbosa, Eduardo"]
[Black "Okada, William Kenji"]
[Result "0-1"]
[ECO "A48"]
[BlackElo "1791"]
[PlyCount "60"]
[EventDate "2011.04.15"]
[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. Bf4 Bg7 4. Nbd2 d6 5. h3 0-0 6. e4 e6 7. Be2 Nc6 8. c3 Bd7 9. Qc2 a6 10. 0-0 Re8 11. Bg5 Qc8 12. b4 h6 13. Be3 e5 14. d5 Ne7 15. a4 c6 16. dxc6 bxc6 17. Nc4 Qc7 18. Nb6 Rab8 19. Nxd7 Nxd7 20. Bxa6 d5 21. Bd3 f5 22. Qa2 Kh8 23. Bc2 fxe4 24. Nh2 c5 25. b5 d4 26. Bd2 Nf6 27. c4 Nf5 28. a5 d3 29. Ba4 Red8 30. b6 Qb7 0-1

[Event "BRA-ch U12"]
[Site "Catanduva"]
[Date "2011.04.??"]
[Round "2.4"]
[White "Matheus, Felipe Pessoa"]
[Black "Okada, William Kenji"]
[Result "0-1"]
[ECO "B23"]
[BlackElo "1791"]
[PlyCount "28"]
[EventDate "2011.04.15"]
[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 Nc6 3. f4 e6 4. Bc4 d6 5. Nf3 Nf6 6. d3 Be7 7. 0-0 0-0 8. Qe1 a6 9. a4 d5 10. Bb3 b6 11. e5 Nd7 12. Qg3 f5 13. Nxd5 Ndb8 14. Nxe7+ Qxe7 0-1

[Event "BRA-ch U12"]
[Site "Catanduva"]
[Date "2011.04.??"]
[Round "3.4"]
[White "Okada, William Kenji"]
[Black "Costa, Luiz Henrique Silva"]
[Result "1-0"]
[ECO "D20"]
[WhiteElo "1791"]
[PlyCount "100"]
[EventDate "2011.04.15"]
[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. c4 dxc4 3. e3 Nc6 4. Bxc4 e5 5. Nf3 Bg4 6. d5 e4 7. dxc6 Qxd1+ 8. Kxd1 exf3 9. g3 0-0-0+ 10. Bd2 bxc6 11. Nc3 Bb4 12. a3 Bxc3 13. bxc3 Bf5 14. Ba6+ Kb8 15. Ra2 Bc8 16. Bc4 Be6 17. Rb2+ Ka8 18. Ba6 Rb8 19. Rxb8+ Kxb8 20. e4 Nf6 21. Kc2 Bc8 22. Bd3 Ng4 23. Be3 Nxe3+ 24. fxe3 Bh3 25. Bf1 Bg4 26. Ba6 Ka8 27. Bd3 Rb8 28. h3 Be6 29. c4 h5 30. h4 Rb6 31. Rf1 Bg4 32. Kc3 c5 33. Bc2 g6 34. Rf2 Re6 35. Kd2 f5 36. exf5 gxf5 37. Rf1 Ra6 38. a4 Rd6+ 39. Kc3 Re6 40. Kd2 Rb6 41. Kc3 Rb4 42. Rf2 Kb8 43. Rd2 Kb7 44. Rf2 Kc6 45. Rd2 Rb8 46. a5 Rb4 47. Bb3 a6 48. Kc2 Rb8 49. Kc3 Kb7 50. Ba4 Ka7 1-0

[Event "BRA-ch U12"]
[Site "Catanduva"]
[Date "2011.04.??"]
[Round "6.2"]
[White "Okada, William Kenji"]
[Black "Goncalves, Leonardo Yamamoto"]
[Result "0-1"]
[ECO "A53"]
[WhiteElo "1791"]
[BlackElo "1820"]
[PlyCount "89"]
[EventDate "2011.04.15"]
[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 d6 2. c4 Nf6 3. g3 c6 4. Bg2 Nbd7 5. Nf3 e5 6. e3 Be7 7. 0-0 0-0 8. Nc3 Re8 9. Qc2 Bf8 10. b3 a6 11. Bb2 e4 12. Nd2 d5 13. a4 Bd6 14. Rac1 Nb8 15. Rfe1 Nh5 16. Nf1 Be6 17. Qe2 g6 18. Red1 f5 19. f4 Ng7 20. Nd2 Qd7 21. Rc2 Nh5 22. Rdc1 h6 23. Qd1 Nf6 24. h3 Nh5 25. Ne2 Kh8 26. Nf1 Rg8 27. Kh1 Qf7 28. Qe1 Qg7 29. Kh2 Kh7 30. Qf2 a5 31. c5 Bc7 32. Ba3 Nd7 33. Bb2 Nf8 34. Bc3 Bd8 35. Be1 g5 36. Kh1 Ng6 37. Kh2 gxf4 38. Nxf4 Ngxf4 39. gxf4 Qf7 40. Kh1 Bf6 41. Rd2 Rg7 42. Rcc2 Rag8 43. Qe2 Rxg2 44. Qxg2 Rxg2 45. Rxg2 0-1

[Event "BRA-ch U12"]
[Site "Catanduva"]
[Date "2011.04.??"]
[Round "5.3"]
[White "Okada, William Kenji"]
[Black "Outi, Matheus Goya"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "1791"]
[PlyCount "34"]
[EventDate "2011.04.15"]
[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 e6 3. g3 Bb4+ 4. Bd2 Qe7 5. Bg2 Bxd2+ 6. Nxd2 d6 7. Ngf3 Nc6 8. 0-0 0-0 9. Qc2 b6 10. d5 exd5 11. cxd5 Nb4 12. Qc4 a5 13. a3 Ba6 14. Qb3 Nbxd5 15. Nd4 Qe5 16. Nc6 Qh5 17. Bxd5 Qxd5 1-0

[Event "BRA-ch U12"]
[Site "Catanduva"]
[Date "2011.04.??"]
[Round "1.4"]
[White "Okada, William Kenji"]
[Black "Sato, Henrique Akira Lisb"]
[Result "1-0"]
[ECO "A90"]
[WhiteElo "1791"]
[PlyCount "78"]
[EventDate "2011.04.15"]
[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 f5 2. c4 Nf6 3. g3 e6 4. Bg2 d5 5. Nf3 c6 6. Nbd2 Bd6 7. 0-0 0-0 8. Qc2 Ne4 9. Ne1 Qf6 10. e3 b6 11. b3 Nd7 12. Bb2 Ba6 13. Ndf3 b5 14. c5 Bc7 15. b4 Bb7 16. Nd3 a5 17. a3 Qd8 18. Nf4 Bxf4 19. exf4 Nb8 20. Ne5 Na6 21. Nd3 Qd7 22. Rfe1 Qc7 23. f3 Nf6 24. Rxe6 Bc8 25. Re5 Bd7 26. Rae1 Rae8 27. Bc3 a4 28. R1e3 Qc8 29. Qe2 Nc7 30. Rxe8 Bxe8 31. Re7 Bd7 32. Bh3 g6 33. Ne5 Qd8 34. Nxd7 Nxd7 35. Bd2 Nf6 36. Qe5 Nce8 37. Qe6+ Kh8 38. Rf7 Rxf7 39. Qxf7 Ne4 1-0

[Event "BRA-ch U12"]
[Site "Catanduva"]
[Date "2011.04.??"]
[Round "4.1"]
[White "Vilalba, Guilherme Pereira"]
[Black "Okada, William Kenji"]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "1945"]
[BlackElo "1791"]
[PlyCount "86"]
[EventDate "2011.04.15"]
[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. g3 d5 3. Bg2 e6 4. 0-0 Be7 5. d3 0-0 6. Nbd2 Nbd7 7. e4 Nb6 8. Qe2 Re8 9. h3 c6 10. a3 Qc7 11. Nb3 e5 12. Re1 Bd6 13. Bg5 Nfd7 14. Be3 h6 15. Rab1 Nf6 16. Bc1 Be6 17. Nbd2 a5 18. Ra1 Rad8 19. Rb1 Nfd7 20. Ra1 Nf8 21. Nb1 dxe4 22. dxe4 Bc5 23. Nbd2 Ng6 24. b3 Nd7 25. Bb2 b5 26. a4 Qb6 27. Rf1 f6 28. Bc3 b4 29. Bb2 Qa7 30. Rad1 Nb6 31. Ne1 Rd7 32. Nd3 Bf8 33. Qe3 Qc7 34. Nc5 Bxc5 35. Qxc5 Red8 36. Bc1 Nc8 37. Rde1 Nd6 38. Qe3 f5 39. Bb2 Nf7 40. Nf3 f4 41. Qc5 Kh7 42. gxf4 Nxf4 43. Re3 Ng5 1-0

[Event "Goiania Kasparov op 5th"]
[Site "Goiania"]
[Date "2011.01.30"]
[Round "5"]
[White "Cavalcante, Diego Xavier"]
[Black "Okada, William Kenji"]
[Result "1/2-1/2"]
[ECO "B33"]
[BlackElo "1790"]
[PlyCount "92"]
[EventDate "2011.01.28"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Bb4 7. f3 d6 8. Be3 Be6 9. Bb5 0-0 10. 0-0 a6 11. Bxc6 bxc6 12. a3 Bxb3 13. axb4 Be6 14. Na4 Rb8 15. c3 Qc7 16. Qe2 Nd7 17. Qxa6 f5 18. Qd3 d5 19. Nc5 Nxc5 20. Bxc5 Rfd8 21. Qe3 fxe4 22. Ra7 Qc8 23. Qg5 Rd7 24. fxe4 Bf7 25. Qxe5 Rxa7 26. Bxa7 Ra8 27. Bd4 Qg4 28. Qc7 Qg6 29. e5 h5 30. Qb7 Ra2 31. Qc8+ Kh7 32. Qf5 Rxb2 33. Qxg6+ Kxg6 34. Ra1 Re2 35. Ra7 Re4 36. Rc7 Be8 37. e6 Rxe6 38. Rxg7+ Kh6 39. g4 hxg4 40. Rxg4 Rg6 41. Rxg6+ Kxg6 42. Kf2 Kf5 43. Kg3 Bh5 44. Bh8 Bd1 45. Kf2 Bh5 46. Ke1 Ke4 1/2-1/2

[Event "Goiania Kasparov op 5th"]
[Site "Goiania"]
[Date "2011.01.30"]
[Round "4"]
[White "Okada, William Kenji"]
[Black "Luz, Heitor Carvalho"]
[Result "0-1"]
[ECO "D78"]
[WhiteElo "1790"]
[PlyCount "62"]
[EventDate "2011.01.28"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 d5 6. Nbd2 c6 7. 0-0 Nbd7 8. Qc2 dxc4 9. Nxc4 Nb6 10. b3 Bf5 11. Qd1 Nfd5 12. Bb2 Qc7 13. Re1 Nxc4 14. bxc4 Nb6 15. Qb3 Rad8 16. Rac1 Rfe8 17. e4 Bc8 18. a4 c5 19. a5 Nd7 20. d5 Ne5 21. Nxe5 Bxe5 22. Bxe5 Qxe5 23. Kh1 Rd6 24. f4 Qh5 25. e5 Ra6 26. Qb5 Rd8 27. Qxc5 Bh3 28. Qxe7 Bxg2+ 29. Kxg2 Rf8 30. Qxb7 Rxa5 31. c5 Ra2+ 0-1

[Event "Goiania Kasparov op 5th"]
[Site "Goiania"]
[Date "2011.01.29"]
[Round "3"]
[White "Mariano, Marceley Martins"]
[Black "Okada, William Kenji"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2049"]
[BlackElo "1790"]
[PlyCount "189"]
[EventDate "2011.01.28"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Bxf6 gxf6 9. Na3 b5 10. Nd5 Be6 11. c4 b4 12. Qa4 Rc8 13. Nxb4 Bd7 14. Nd5 a5 15. Qd1 f5 16. Bd3 fxe4 17. Bxe4 Bg7 18. 0-0 0-0 19. Ne3 Nd4 20. Nac2 Nxc2 21. Qxc2 Qh4 22. g3 Qh5 23. Rad1 Bh3 24. Bg2 Bxg2 25. Kxg2 Rfd8 26. Nf5 Bf8 27. Qe4 Qg6 28. f4 Re8 29. b3 Rcd8 30. fxe5 Rxe5 31. Qxe5 dxe5 32. Rxd8 Qc6+ 33. Rf3 Qb7 34. Rd5 Qc7 35. Rfd3 Qc6 36. Kf3 h5 37. Ke4 Kh7 38. Kxe5 f6+ 39. Kf4 Kg6 40. h4 Qc7+ 41. Kf3 Qc6 42. g4 hxg4+ 43. Kxg4 Qe6 44. h5+ Kh7 45. Re3 Qc6 46. Nd4 Qc8+ 47. Ne6 Bh6 48. Rd8 Qc6 49. Nf4 Qc7 50. Rd4 Qc8+ 51. Kg3 Qg8+ 52. Kf3 Qa8+ 53. Kf2 Qa7 54. Rde4 Qb6 55. Kf3 Qd6 56. Re7+ Bg7 57. Nd5 Kh6 58. R3e6 Qc5 59. Re2 Qd4 60. R7e4 Qd3+ 61. Kg4 Qd1 62. Ne7 Qg1+ 63. Kf5 Qf1+ 64. Ke6 f5 65. Nxf5+ Kh7 66. Nxg7 Kxg7 67. Re5 Qh3+ 68. Kd5 Qf3+ 69. Kc5 Qf8+ 70. Re7+ Kh6 71. Kb5 Kxh5 72. Kxa5 Qd8+ 73. Kb4 Qd6+ 74. Kc3 Qf6+ 75. R7e5+ Kg4 76. c5 Qf3+ 77. R2e3 Qf1 78. R3e4+ Kg3 79. Rg5+ Kh3 80. Reg4 Qc1+ 81. Kb4 Qd2+ 82. Kb5 Qxa2 83. b4 Qe2+ 84. Kb6 Qe7 85. Rg8 Qe1 86. b5 Qf2 87. R4g6 Qh4 88. c6 Qf2+ 89. Kb7 Qf7+ 90. c7 Qd5+ 91. Ka7 Qc5+ 92. b6 Qa5+ 93. Kb8 Qh5 94. c8Q+ Kh4 95. Rh8 1-0

[Event "Goiania Kasparov op 5th"]
[Site "Goiania"]
[Date "2011.01.29"]
[Round "2"]
[White "Okada, William Kenji"]
[Black "Bizio, Rogerio Fernando"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "1790"]
[PlyCount "57"]
[EventDate "2011.01.28"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. g3 Nc6 3. Bg2 e6 4. c4 Nf6 5. Nf3 Bb4+ 6. Bd2 Bxd2+ 7. Nbxd2 0-0 8. 0-0 a6 9. Qc2 h6 10. Rad1 b5 11. b3 Bb7 12. Rfe1 Qd6 13. a4 b4 14. e3 Rfe8 15. Qb2 a5 16. h3 Rad8 17. Qc1 Ba6 18. e4 g6 19. e5 Nxd4 20. Nxd4 Qxe5 21. Rxe5 c5 22. Nc6 Rd7 23. cxd5 Nxd5 24. Bxd5 Bb7 25. Ne4 Kg7 26. Nxc5 Rc7 27. Nxb7 Rxb7 28. Qb2 exd5 29. Re7+ 1-0

[Event "Goiania Kasparov op 5th"]
[Site "Goiania"]
[Date "2011.01.28"]
[Round "1"]
[White "Souza, Lucas Alves Ferreir"]
[Black "Okada, William Kenji"]
[Result "0-1"]
[ECO "B54"]
[BlackElo "1790"]
[PlyCount "104"]
[EventDate "2011.01.28"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. d4 cxd4 5. Nxd4 Bd7 6. Nxc6 bxc6 7. Bd3 e5 8. Nc3 Be7 9. 0-0 Nf6 10. Kh1 Bg4 11. Be2 Bxe2 12. Qxe2 Nd7 13. f4 0-0 14. fxe5 Nxe5 15. Bf4 Bf6 16. Rad1 Qe7 17. Bxe5 Bxe5 18. Rd3 Rae8 19. Re1 Qg5 20. Rh3 h6 21. Rd1 d5 22. Re1 Bxc3 23. Rxc3 Rxe4 24. Re3 f5 25. Rxe4 fxe4 26. h3 Qf4 27. c3 c5 28. Qe3 Qd6 29. Rd1 Re8 30. c4 d4 31. Kg1 Qe6 32. Qb3 Qe5 33. Qb7 Re7 34. Qd5+ Qxd5 35. cxd5 Re5 36. Kf1 Rxd5 37. Ke2 Kf7 38. Kd2 Ke6 39. g4 Ke5 40. Rf1 Ke6 41. b3 g6 42. Rf8 Rd6 43. Rh8 Kd5 44. Rxh6 c4 45. bxc4+ Kxc4 46. Rh7 e3+ 47. Ke1 Kd3 48. Rc7 Rb6 49. Rc1 Rb2 50. Rd1+ Ke4 51. h4 Rh2 52. h5 d3 0-1

[Event "Goiania IRT Jao"]
[Site "Goiania"]
[Date "2010.11.30"]
[Round "1.8"]
[White "Okada, William Kenji"]
[Black "Garcia, Gabriel Gonzaga"]
[Result "0-1"]
[ECO "E00"]
[WhiteElo "1792"]
[PlyCount "100"]
[EventDate "2010.11.01"]
[EventType "swiss"]
[EventRounds "6"]
[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. g3 Bb4+ 4. Bd2 c5 5. Bxb4 cxb4 6. a3 d5 7. cxd5 Qxd5 8. Nf3 Nc6 9. Bg2 Qh5 10. 0-0 0-0 11. axb4 Nxb4 12. Re1 Nc6 13. e3 Rd8 14. Qc2 e5 15. dxe5 Nxe5 16. Nxe5 Qxe5 17. Nc3 Qe7 18. e4 Be6 19. Nd5 Bxd5 20. exd5 Qb4 21. Red1 Rac8 22. Qe2 a6 23. h3 h6 24. Kh2 Rc5 25. d6 Rb5 26. d7 Rxd7 27. Rxd7 Nxd7 28. Rd1 Re5 29. Qc2 Qc5 30. Qb3 Qc7 31. Qxb7 Qxb7 32. Bxb7 Nc5 33. Bf3 a5 34. Rd8+ Kh7 35. Ra8 Nd3 36. b3 Nxf2 37. Kg2 Nd3 38. Bd1 g6 39. g4 Nf4+ 40. Kg3 g5 41. Bf3 Ne2+ 42. Kf2 Nd4 43. Bd1 Rb5 44. Kg2 Kg6 45. Ra6+ f6 46. Ra7 Rc5 47. Kh2 Rc1 48. Rxa5 Rxd1 49. b4 Rb1 50. Ra4 Nc2 0-1

[Event "Goiania IRT Jao"]
[Site "Goiania"]
[Date "2010.11.07"]
[Round "6.1"]
[White "Okada, William Kenji"]
[Black "Wilhelms, Diego Lima"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "1790"]
[BlackElo "2149"]
[PlyCount "48"]
[EventDate "2010.11.01"]
[EventType "swiss"]
[EventRounds "6"]
[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. g3 dxc4 4. Bg2 Nf6 5. Nf3 b5 6. a4 Bb7 7. 0-0 Nbd7 8. Ne5 Qb6 9. Nc3 e6 10. Nxd7 Nxd7 11. Bf4 a6 12. Ne4 Rd8 13. a5 Qa7 14. Bc7 Rc8 15. Bd6 Be7 16. Bxe7 Kxe7 17. Qd2 h6 18. Qb4+ c5 19. dxc5 Bxe4 20. c6+ Qc5 21. Qc3 Qxc6 22. Bxe4 Qxe4 23. Rfd1 Qc6 24. Qxg7 Nf6 0-1

[Event "Goiania IRT Jao"]
[Site "Goiania"]
[Date "2010.11.07"]
[Round "5.5"]
[White "Souza, Lucas Alves Ferreir"]
[Black "Okada, William Kenji"]
[Result "0-1"]
[ECO "B51"]
[BlackElo "1790"]
[PlyCount "52"]
[EventDate "2010.11.01"]
[EventType "swiss"]
[EventRounds "6"]
[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. Bb5 d6 4. Bxc6+ bxc6 5. 0-0 e5 6. d3 Be7 7. Nc3 Nf6 8. h3 0-0 9. Ne2 Qc7 10. Ng3 Bb7 11. Nf5 Rad8 12. Be3 d5 13. Qc1 Ba6 14. g4 dxe4 15. Bh6 Ne8 16. Bg5 f6 17. Bh4 exf3 18. Kh1 e4 19. Rg1 exd3 20. g5 d2 21. Qb1 d1Q 22. Rxd1 Rxd1+ 23. Qxd1 Be2 24. Qd2 Kh8 25. Rg1 Qc8 26. Nxe7 Qxh3# 0-1

[Event "Goiania IRT Jao"]
[Site "Goiania"]
[Date "2010.11.06"]
[Round "4.3"]
[White "Okada, William Kenji"]
[Black "Okada, Dyogo Koithi"]
[Result "1/2-1/2"]
[ECO "E60"]
[WhiteElo "1790"]
[PlyCount "21"]
[EventDate "2010.11.01"]
[EventType "swiss"]
[EventRounds "6"]
[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. g3 Bg7 4. Bg2 0-0 5. Nf3 d6 6. 0-0 Nh5 7. Nc3 Nd7 8. Qc2 Ndf6 9. Bf4 Bf5 10. e4 Bg4 11. Qd2 1/2-1/2

