[Event "Santa Catarina-chT"]
[Site "Piratuba"]
[Date "2018.04.15"]
[Round "4.2"]
[White "Borges, Guilherme Deola"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1-0"]
[ECO "B04"]
[WhiteElo "2191"]
[BlackElo "2162"]
[PlyCount "83"]
[EventDate "2018.04.13"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]
[WhiteTeam "UFSC"]
[BlackTeam "Caita"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "BRA"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 dxe5 5. Nxe5 c6 6. Be2 Nd7 7. Nf3 N7f6 8. 0-0 Bg4 9. h3 Bxf3 10. Bxf3 e6 11. c4 Nb6 12. Qb3 Qxd4 13. Be3 Qd8 14. c5 Nbd5 15. Qxb7 Qc8 16. Qxc8+ Rxc8 17. Bd4 Be7 18. Nd2 0-0 19. Rfd1 Rfd8 20. Nb3 Nd7 21. Re1 Bf6 22. Bxf6 N7xf6 23. Na5 Rc7 24. a3 Kf8 25. b4 h5 26. Rad1 Ke7 27. g3 g6 28. Bg2 Kf8 29. f4 Rb8 30. Bf3 Rbc8 31. Rd4 Kg7 32. Kf2 Ng8 33. g4 hxg4 34. hxg4 Nge7 35. Rh1 Rh8 36. Rxh8 Kxh8 37. Kg3 Kg7 38. Rd1 Rc8 39. Rb1 Rb8 40. Bxd5 exd5 41. Re1 Kf8 42. Rxe7 1-0

[Event "Santa Catarina-chT"]
[Site "Piratuba"]
[Date "2018.04.15"]
[Round "5.2"]
[White "Yamamoto, Eduardo Akio"]
[Black "Franceschina, Dalvan Jose"]
[Result "1-0"]
[ECO "B53"]
[WhiteElo "2162"]
[BlackElo "1960"]
[PlyCount "109"]
[EventDate "2018.04.13"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]
[WhiteTeam "Caita"]
[BlackTeam "Elo Ideias"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "BRA"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. d4 cxd4 5. Qxd4 Bd7 6. Bxc6 Bxc6 7. c4 Nf6 8. Nc3 g6 9. 0-0 Bg7 10. Qd3 0-0 11. Be3 b6 12. Rfd1 Rc8 13. Rac1 Qd7 14. h3 Qb7 15. Nd2 Rfd8 16. b3 Nd7 17. Bd4 Nc5 18. Qe3 Bxd4 19. Qxd4 Ne6 20. Qe3 Nc7 21. Nd5 Ne8 22. a4 e6 23. Nb4 Qe7 24. Nxc6 Rxc6 25. Nf3 Rdc8 26. Rd3 R6c7 27. Rcd1 Rd8 28. Nd4 Ng7 29. Nb5 Rcd7 30. Qd2 Ne8 31. Qb4 Kf8 32. Qa3 f6 33. f4 Kf7 34. Nd4 Rc7 35. Nf3 Rcd7 36. a5 bxa5 37. Qxa5 Kg7 38. c5 d5 39. e5 Rc8 40. b4 Rb7 41. Nd4 Kf7 42. Re3 f5 43. Rb3 Qc7 44. Qa6 Qe7 45. c6 Rbb8 46. Ra1 Ra8 47. Qb7 Rcb8 48. Qxe7+ Kxe7 49. Rba3 Nc7 50. Rxa7 Rxa7 51. Rxa7 Kd8 52. Rb7 Rxb7 53. cxb7 Na6 54. Nxe6+ Kd7 55. Nc5+ 1-0

[Event "Santa Catarina-chT"]
[Site "Piratuba"]
[Date "2018.04.14"]
[Round "3.2"]
[White "Yamamoto, Eduardo Akio"]
[Black "De Borba, Gabriel"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2162"]
[BlackElo "2091"]
[PlyCount "125"]
[EventDate "2018.04.13"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]
[WhiteTeam "Caita"]
[BlackTeam "Blumenau"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "BRA"]

1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. a4 Qa5 5. Bd2 e5 6. Nd5 Qd8 7. Nxf6+ Qxf6 8. Bc3 Be7 9. Nf3 Nd7 10. g3 Qg6 11. Qe2 Bf6 12. Bg2 0-0 13. dxe5 Nxe5 14. Nxe5 Bxe5 15. 0-0 Bg4 16. Qd3 Rad8 17. f3 Be6 18. f4 Bxc3 19. Qxc3 f5 20. Rae1 fxe4 21. Bxe4 Bf5 22. Qb3+ Rf7 23. Bxf5 Qxf5 24. Re7 Kf8 25. Re2 Rfd7 26. Rfe1 Qf7 27. Re6 Qf5 28. R1e2 a6 29. Qf3 Rf7 30. h4 g5 31. hxg5 Qxg5 32. Kg2 Qg7 33. b3 Rf6 34. Qe3 Rxe6 35. Qxe6 Qf7 36. Qh6+ Qg7 37. Qxg7+ Kxg7 38. Re7+ Kg6 39. Rxb7 Re8 40. Kf2 Re6 41. Ra7 c5 42. Rxa6 Kf5 43. Ra7 Rh6 44. Kf3 Rh2 45. c4 Rb2 46. Rb7 h5 47. a5 Ra2 48. Rh7 Rxa5 49. Rxh5+ Kg6 50. Rd5 Ra6 51. g4 Rb6 52. Rd3 Kf6 53. Ke4 Ke6 54. f5+ Kf6 55. Kf4 Ra6 56. g5+ Kf7 57. Rh3 Ra1 58. Rh7+ Kg8 59. Rb7 Re1 60. g6 Rg1 61. Ke4 Rg5 62. f6 Rxg6 63. Rg7+ 1-0

[Event "Santa Catarina-chT"]
[Site "Piratuba"]
[Date "2018.04.13"]
[Round "1.2"]
[White "Yamamoto, Eduardo Akio"]
[Black "Arndt, Claudio Felipe"]
[Result "1-0"]
[ECO "B17"]
[WhiteElo "2162"]
[BlackElo "1688"]
[PlyCount "73"]
[EventDate "2018.04.13"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]
[WhiteTeam "Caita"]
[BlackTeam "Rio do Sul"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "BRA"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Ng3 e6 7. Bc4 Be7 8. 0-0 0-0 9. Qe2 b6 10. Re1 Nd5 11. Bb3 Qc7 12. c4 Nf4 13. Qe4 Ng6 14. h4 Nf6 15. Qe2 Bb7 16. Bc2 Rad8 17. Bg5 c5 18. d5 Bc8 19. Rad1 Rfe8 20. Ba4 Rf8 21. Ne4 Nxe4 22. Qxe4 Bxg5 23. Nxg5 h6 24. h5 f5 25. Qe3 Nf4 26. Nxe6 Nxe6 27. dxe6 Rxd1 28. Rxd1 Qe7 29. Bd7 Rd8 30. Qd3 Bb7 31. Qxf5 Rf8 32. Qg4 Qf6 33. Rd2 Qe5 34. Re2 Qd6 35. e7 Qd1+ 36. Kh2 Qd6+ 37. f4 1-0

[Event "Catarinense-ch"]
[Site "Blumenau"]
[Date "2017.05.21"]
[Round "5"]
[White "Caetano, Ryan Wesley da Cost"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1/2-1/2"]
[ECO "A83"]
[WhiteElo "1849"]
[BlackElo "2190"]
[PlyCount "75"]
[EventDate "2017.05.19"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 Nc6 5. d5 Ne5 6. Qd4 Nf7 7. Bxf6 exf6 8. Nxe4 Be7 9. 0-0-0 0-0 10. Nf3 f5 11. Ng3 Bf6 12. Qa4 g6 13. h4 h5 14. Bd3 d6 15. Kb1 Bg7 16. c3 a6 17. Ne2 Bd7 18. Qc2 Qf6 19. Nf4 c5 20. Rhe1 Rfe8 21. Ne6 b5 22. Nc7 Rxe1 23. Rxe1 Rc8 24. Ne6 Re8 25. Nxg7 Rxe1+ 26. Nxe1 Kxg7 27. Nf3 Ne5 28. Ng5 Nxd3 29. Qxd3 Qe5 30. Nf3 Qe4 31. Kc2 Kf6 32. b3 a5 33. c4 Qxd3+ 34. Kxd3 b4 35. Ke3 a4 36. Kf4 a3 37. Nd2 Be8 38. Nf3 1/2-1/2

[Event "Catarinense-ch"]
[Site "Blumenau"]
[Date "2017.05.21"]
[Round "6"]
[White "Yamamoto, Eduardo Akio"]
[Black "Both, Vinicius Andre"]
[Result "1/2-1/2"]
[ECO "B17"]
[WhiteElo "2190"]
[BlackElo "1954"]
[PlyCount "70"]
[EventDate "2017.05.19"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. d4 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Ng3 Qc7 7. Bc4 e6 8. Qe2 Nb6 9. Bb3 c5 10. c3 cxd4 11. Nxd4 Be7 12. 0-0 0-0 13. Re1 Bd7 14. Bc2 Nbd5 15. Ne4 Nf4 16. Qf3 Ng6 17. Ng5 Bc5 18. Be3 e5 19. Nf5 Bxf5 20. Bxf5 Bxe3 21. Qxe3 Rfe8 22. Bxg6 hxg6 23. Rad1 Qa5 24. a3 Rad8 25. h3 a6 26. Ne4 Rxd1 27. Nxf6+ gxf6 28. Rxd1 Rd8 29. Qf3 Rxd1+ 30. Qxd1 Qb5 31. Qc2 Qd5 32. c4 Qd4 33. c5 a5 34. Qb3 Qxc5 35. Qxb7 Qc1+ 1/2-1/2

[Event "Catarinense-ch"]
[Site "Blumenau"]
[Date "2017.05.20"]
[Round "3"]
[White "Hille, Willian Henrique"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "2052"]
[BlackElo "2190"]
[PlyCount "75"]
[EventDate "2017.05.19"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. d4 f5 2. f3 e6 3. Nh3 Nf6 4. c4 b6 5. Nf2 Bb7 6. Nc3 Bb4 7. Qc2 Nc6 8. e3 0-0 9. Bd3 Qe7 10. a3 Bxc3+ 11. Qxc3 d6 12. b4 a5 13. b5 Nd8 14. a4 Nd7 15. Qc2 Qf7 16. Bb2 e5 17. 0-0-0 exd4 18. exd4 Ne6 19. Rhe1 Nf4 20. Bf1 Rae8 21. g3 Ne6 22. f4 Nd8 23. d5 Bc8 24. Bd4 Nb7 25. Nd3 Rxe1 26. Rxe1 Re8 27. Rxe8+ Qxe8 28. Qe2 Qxe2 29. Bxe2 Kf7 30. Bh5+ g6 31. Bf3 h6 32. Kd2 Ndc5 33. Nxc5 Nxc5 34. Bxc5 dxc5 35. Ke3 Kf6 36. Bd1 Bd7 37. Bf3 Be8 38. Bd1 1/2-1/2

[Event "Catarinense-ch"]
[Site "Blumenau"]
[Date "2017.05.20"]
[Round "4"]
[White "Yamamoto, Eduardo Akio"]
[Black "Borges, Guilherme Deola"]
[Result "1/2-1/2"]
[ECO "A04"]
[WhiteElo "2190"]
[BlackElo "2149"]
[PlyCount "124"]
[EventDate "2017.05.19"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d3 Nc6 4. g3 g6 5. Bg2 Bg7 6. 0-0 Nge7 7. Re1 d6 8. c3 e5 9. Be3 0-0 10. d4 b6 11. Na3 Bg4 12. dxc5 dxc5 13. h3 Qxd1 14. Rexd1 Bxf3 15. Bxf3 Rfd8 16. Be2 Rxd1+ 17. Rxd1 Rd8 18. Rxd8+ Nxd8 19. Nc4 Nec6 20. a4 Nb7 21. Kg2 Kf8 22. h4 Ke7 23. h5 Nd6 24. Nxd6 Kxd6 25. Bc4 Nd8 26. Kf3 gxh5 27. Kg2 Bf6 28. Kh3 Ne6 29. f4 Ke7 30. Be2 Ng7 31. f5 Kd6 32. Bc4 Ke7 33. b4 cxb4 34. cxb4 Ne8 35. a5 Nd6 36. Bd3 Nc8 37. Be2 Ke8 38. Bxh5 bxa5 39. bxa5 Bd8 40. a6 Bb6 41. Bd2 Nd6 42. Bf3 f6 43. Kh4 Nc4 44. Bc1 Bf2 45. Be2 Nb6 46. Ba3 Kf7 47. Kg4 Na4 48. Bc4+ Kg7 49. Kf3 Bb6 50. Bb4 Nc5 51. g4 Kh6 52. Bd2+ Kg7 53. g5 fxg5 54. Bxg5 Nd7 55. Bd5 Nf6 56. Bh4 Bc5 57. Ke2 h5 58. Kd3 Be7 59. Be6 Bc5 60. Bg3 Bd4 61. Bh4 Bb6 62. Bd5 Bd4 1/2-1/2

[Event "Catarinense-ch"]
[Site "Blumenau"]
[Date "2017.05.19"]
[Round "1"]
[White "Maba, Mateus dos Passos"]
[Black "Yamamoto, Eduardo Akio"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1628"]
[BlackElo "2190"]
[PlyCount "67"]
[EventDate "2017.05.19"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 d5 3. d4 Nxe4 4. Nxe4 dxe4 5. f3 Bf5 6. Bf4 e6 7. Qd2 Bd6 8. 0-0-0 c6 9. h4 h5 10. Ne2 Qc7 11. Bxd6 Qxd6 12. Qg5 Nd7 13. Ng3 Qe7 14. Qf4 e3 15. Nxf5 exf5 16. Re1 0-0-0 17. Rxe3 Qf6 18. Ra3 Nb6 19. c3 Nd5 20. Qd2 Kb8 21. c4 Nc7 22. Rd3 Rd7 23. Be2 Rhd8 24. Rd1 Qxh4 25. Kb1 Qf2 26. d5 cxd5 27. cxd5 Rxd5 28. Qg5 Ne6 29. Qe7 Rxd3 30. Bxd3 Qe3 31. Qa3 Nc5 32. Qa5 b6 33. Qc3 Rxd3 34. Rxd3 0-1

[Event "Catarinense-ch"]
[Site "Blumenau"]
[Date "2017.05.19"]
[Round "2"]
[White "Yamamoto, Eduardo Akio"]
[Black "De Borba, Gabriel"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "2190"]
[BlackElo "1903"]
[PlyCount "81"]
[EventDate "2017.05.19"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d3 d5 4. Nbd2 Nf6 5. g3 Nc6 6. Bg2 Qc7 7. 0-0 b6 8. Re1 Be7 9. h4 Bb7 10. e5 Nd7 11. Qe2 0-0-0 12. a3 Kb8 13. Rb1 h6 14. h5 Rde8 15. c4 dxc4 16. dxc4 g5 17. hxg6 fxg6 18. Ne4 g5 19. b4 cxb4 20. Nd6 Bxd6 21. exd6 Qxd6 22. Rd1 Qc7 23. axb4 g4 24. Nh4 h5 25. c5 e5 26. Qf1 Nf8 27. b5 Nd4 28. c6 Nfe6 29. cxb7 Rhf8 30. Be3 Rf6 31. Rbc1 Qf7 32. Qc4 Qf8 33. Bd5 Nc5 34. Bxd4 exd4 35. Qxd4 Rd6 36. Rxc5 bxc5 37. Qxc5 Red8 38. Ra1 a6 39. b6 Qg7 40. Rc1 Qd7 41. Qc7+ 1-0

[Event "Florianopolis op 3rd"]
[Site "Florianopolis"]
[Date "2017.01.26"]
[Round "10"]
[White "Yamamoto, Eduardo Akio"]
[Black "Costa, Flavio Luis Cesar"]
[Result "1/2-1/2"]
[ECO "A04"]
[WhiteElo "2106"]
[BlackElo "1958"]
[PlyCount "106"]
[EventDate "2017.01.20"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. g3 Bg7 4. Bg2 Nc6 5. 0-0 e6 6. Re1 d6 7. c3 e5 8. d4 Nge7 9. Be3 cxd4 10. cxd4 0-0 11. Nc3 Bg4 12. dxe5 Nxe5 13. Bg5 h6 14. Bxe7 Qxe7 15. Nd5 Qd8 16. Qb3 Nxf3+ 17. Bxf3 Bxf3 18. Qxf3 Qa5 19. Qb3 Qd2 20. Rad1 Qxb2 21. Qxb2 Bxb2 22. Rb1 Bd4 23. Rxb7 Kg7 24. Nc7 Rae8 25. Nxe8+ Rxe8 26. Kf1 g5 27. h3 Rc8 28. Rd1 Rc4 29. Rd3 Kg6 30. Rf3 f6 31. Re7 Rc2 32. a3 Ra2 33. Rb7 h5 34. g4 h4 35. Rb5 Bc5 36. Ra5 Kg7 37. Kg2 Kg6 38. a4 Kg7 39. Rf5 Kg6 40. Ra6 Re2 41. Rxc5 dxc5 42. Kf3 Re1 43. Rxa7 Rh1 44. Kg2 Re1 45. Re7 Ra1 46. Ra7 Re1 47. Rc7 Rxe4 48. a5 Ra4 49. Rxc5 Kf7 50. Rb5 Ke6 51. Kf1 Ra3 52. Kg2 Ra4 53. Rf5 Ra3 1/2-1/2

[Event "Florianopolis op 3rd"]
[Site "Florianopolis"]
[Date "2017.01.25"]
[Round "9"]
[White "Chaves, Jorge Antonio Torre"]
[Black "Yamamoto, Eduardo Akio"]
[Result "0-1"]
[ECO "A90"]
[WhiteElo "1927"]
[BlackElo "2106"]
[PlyCount "108"]
[EventDate "2017.01.20"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. c4 d5 5. Nf3 c6 6. Nc3 Bd6 7. 0-0 Nbd7 8. b3 Qe7 9. Bb2 0-0 10. e3 Ne4 11. Ne2 g5 12. Ne5 Qg7 13. f3 Nef6 14. Qc2 g4 15. Nf4 Re8 16. fxg4 Nxg4 17. Nxg4 Qxg4 18. Bh3 Qg5 19. Rae1 Nf6 20. Re2 Kh8 21. Nd3 Re7 22. Ne5 Rg7 23. Rf4 Bd7 24. Bc1 Ne4 25. Rf3 Be8 26. Bg2 Bh5 27. Ref2 Bxf3 28. Rxf3 Rag8 29. Qd3 Qd8 30. a3 Bxe5 31. dxe5 Rd7 32. cxd5 Rxd5 33. Qc4 Rd1+ 34. Bf1 Qd5 35. Qxd5 cxd5 36. Bb2 Nd2 37. Rf2 Nxb3 38. Rxf5 Nd2 39. Rf7 Rxf1+ 40. Rxf1 Nxf1 41. Kxf1 Rc8 42. Bd4 a6 43. Kg2 Rc2+ 44. Kh3 b5 45. Kg4 Rxh2 46. Kg5 Kg7 47. Bc5 a5 48. g4 h6+ 49. Kf4 Rc2 50. Bd6 Rc4+ 51. Kf3 b4 52. axb4 axb4 53. Be7 b3 54. Ba3 Rc2 0-1

[Event "Florianopolis op 3rd"]
[Site "Florianopolis"]
[Date "2017.01.25"]
[Round "8"]
[White "Yamamoto, Eduardo Akio"]
[Black "Hernandez Saldivia, Rody"]
[Result "1/2-1/2"]
[ECO "B53"]
[WhiteElo "2106"]
[BlackElo "1919"]
[PlyCount "87"]
[EventDate "2017.01.20"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 a6 5. h3 Nf6 6. c4 e6 7. Nc3 Nbd7 8. Be2 Be7 9. 0-0 0-0 10. Bg5 Qc7 11. b4 b6 12. Rfd1 Bb7 13. Rac1 Rac8 14. a3 Qb8 15. Nh2 d5 16. exd5 exd5 17. cxd5 Bd6 18. Nf3 Rfe8 19. Be3 b5 20. Qd2 Qa8 21. Nh4 g6 22. Nf3 Ne4 23. Nxe4 Rxe4 24. Rxc8+ Qxc8 25. Bd3 Re8 26. Bb1 Nf6 27. Ba2 Qf5 28. Qd3 Qd7 29. Bc5 Rd8 30. Qd4 Bxc5 31. Qxf6 Be7 32. Qf4 Qd6 33. Qxd6 Rxd6 34. Kf1 Bf6 35. Rd2 Kf8 36. Rd3 a5 37. Nd2 axb4 38. axb4 Ra6 39. Bb3 Be7 40. Rd4 f5 41. f4 Bf6 42. Rd3 Be7 43. Rd4 Bf6 44. Rd3 1/2-1/2

[Event "Florianopolis op 3rd"]
[Site "Florianopolis"]
[Date "2017.01.24"]
[Round "7"]
[White "Rodriguez Vila, Andres"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1-0"]
[ECO "B20"]
[WhiteElo "2468"]
[BlackElo "2106"]
[PlyCount "99"]
[EventDate "2017.01.20"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. e4 Nf6 2. d3 d6 3. f4 c5 4. Nf3 Nc6 5. g3 g6 6. Bg2 Bg7 7. 0-0 Qc7 8. Nc3 e6 9. h3 Nd4 10. g4 Nd7 11. f5 Ne5 12. Nxd4 cxd4 13. Ne2 Nc6 14. f6 Bf8 15. c3 dxc3 16. Nxc3 Qb6+ 17. Kh1 Bd7 18. Qe2 Qa6 19. Be3 e5 20. Nd5 Rc8 21. Rfc1 Be6 22. Rc3 b6 23. Rac1 Qb7 24. Qc2 Bd7 25. Nb4 Nxb4 26. Rxc8+ Qxc8 27. Qxc8+ Bxc8 28. Rxc8+ Kd7 29. Ra8 Nc6 30. h4 Bg7 31. Rxh8 Bxh8 32. g5 Nb4 33. Bf1 Nc6 34. Be2 Kc7 35. Bd1 Nd8 36. Bb3 Kd7 37. Kg2 Kc7 38. Kf2 Kd7 39. Ke2 Kc7 40. Kd2 a6 41. Kc3 Kb7 42. Bd5+ Kc7 43. a4 Ne6 44. Bxe6 fxe6 45. Kb4 Kc6 46. d4 exd4 47. Bxd4 d5 48. exd5+ exd5 49. a5 b5 50. f7 1-0

[Event "Florianopolis op 3rd"]
[Site "Florianopolis"]
[Date "2017.01.23"]
[Round "6"]
[White "Matsuura, Everaldo"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1/2-1/2"]
[ECO "B04"]
[WhiteElo "2477"]
[BlackElo "2106"]
[PlyCount "86"]
[EventDate "2017.01.20"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 dxe5 5. Nxe5 c6 6. Bc4 Nd7 7. Nf3 N7f6 8. h3 Bf5 9. 0-0 e6 10. Re1 Be7 11. c3 Qc7 12. Nbd2 Rd8 13. Nh4 Bg6 14. Nxg6 hxg6 15. Nf3 Bd6 16. Qb3 0-0 17. Bf1 b6 18. c4 Ne7 19. Bd2 c5 20. Bc3 Nf5 21. Rad1 Rfe8 22. Qa4 Nd7 23. dxc5 bxc5 24. g4 Nb6 25. Qc2 Ne7 26. Ne5 Nc6 27. Nxc6 Qxc6 28. Bg2 Qc7 29. b3 Rd7 30. Qe4 Red8 31. Bf3 Bh2+ 32. Kg2 Rxd1 33. Bxd1 Bd6 34. h4 Qc8 35. h5 gxh5 36. gxh5 Qa8 37. Qxa8 Rxa8 38. Kf3 Kf8 39. Rg1 e5 40. Bc2 Rd8 41. Ke4 Nd7 42. Kf5 Re8 43. Rd1 Re6 1/2-1/2

[Event "Florianopolis op 3rd"]
[Site "Florianopolis"]
[Date "2017.01.23"]
[Round "5"]
[White "Yamamoto, Eduardo Akio"]
[Black "Wilberger, Marcelo"]
[Result "1-0"]
[ECO "B53"]
[WhiteElo "2106"]
[BlackElo "1527"]
[PlyCount "25"]
[EventDate "2017.01.20"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 e6 6. 0-0 Bd7 7. Bxc6 Bxc6 8. c4 Nf6 9. Nc3 d5 10. exd5 exd5 11. Re1+ Be7 12. Bg5 0-0 13. cxd5 1-0

[Event "Florianopolis op 3rd"]
[Site "Florianopolis"]
[Date "2017.01.22"]
[Round "4"]
[White "Cunha, Lucas Aguiar"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "2287"]
[BlackElo "2106"]
[PlyCount "58"]
[EventDate "2017.01.20"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. d4 f5 2. Bg5 Nf6 3. Nc3 g6 4. Bxf6 exf6 5. e3 d5 6. h4 Bh6 7. Qf3 Be6 8. Bb5+ c6 9. Bd3 Qd6 10. g4 fxg4 11. Qxf6 Rg8 12. Bf5 gxf5 13. Qxh6 Nd7 14. Nge2 Rg6 15. Qxh7 Bg8 16. Qh5 0-0-0 17. Nf4 Rg7 18. Qxf5 Bh7 19. Qe6 Qf8 20. 0-0-0 Re8 21. Qh6 Nf6 22. Nfe2 Ne4 23. Nxe4 Bxe4 24. Nf4 Bxh1 25. Ne6 Qxf2 26. Nxg7 Be4 27. Rd2 Qe1+ 28. Rd1 Qe2 29. Rd2 Qe1+ 1/2-1/2

[Event "Florianopolis op 3rd"]
[Site "Florianopolis"]
[Date "2017.01.21"]
[Round "2"]
[White "Mahia, Gustavo"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "2360"]
[BlackElo "2106"]
[PlyCount "90"]
[EventDate "2017.01.20"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. d4 f5 2. Bg5 Nf6 3. Bxf6 exf6 4. e3 g6 5. Bd3 Qe7 6. Nc3 Qf7 7. Qf3 Bb4 8. Nge2 d5 9. a3 Bxc3+ 10. Nxc3 c6 11. h3 Be6 12. g4 fxg4 13. hxg4 Nd7 14. 0-0-0 0-0-0 15. Rh6 Rhe8 16. e4 Nf8 17. exd5 Bxd5 18. Nxd5 cxd5 19. Rhh1 Ne6 20. Bb5 Re7 21. Rde1 Nc7 22. Rxe7 Qxe7 23. Ba4 Rd6 24. Kb1 b5 25. Bb3 Rd7 26. Qc3 Qd6 27. Re1 Kb7 28. Qf3 Kb6 29. Qe3 Rf7 30. f4 Qd7 31. Qc3 Qc6 32. Qf3 Qd6 33. Re3 Rd7 34. f5 g5 35. Rc3 a6 36. Rc5 Rd8 37. Qc3 Rd7 38. a4 Re7 39. axb5 axb5 40. Qb4 Qd7 41. Qd2 Qe8 42. c3 Re2 43. Qd3 Re3 44. Qd2 Re2 45. Qd3 Re3 1/2-1/2

[Event "Florianopolis op 3rd"]
[Site "Florianopolis"]
[Date "2017.01.21"]
[Round "3"]
[White "Yamamoto, Eduardo Akio"]
[Black "Umetsubo, Cesar Hidemitsu"]
[Result "1/2-1/2"]
[ECO "C30"]
[WhiteElo "2106"]
[BlackElo "2407"]
[PlyCount "92"]
[EventDate "2017.01.20"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. Nc3 Nf6 5. Bc4 Nc6 6. d3 Bg4 7. Na4 Bb6 8. Nxb6 axb6 9. Bb5 0-0 10. Bxc6 bxc6 11. fxe5 dxe5 12. h3 Bxf3 13. Qxf3 Qd4 14. Qf2 Qb4+ 15. Qd2 Qd6 16. 0-0 Qe6 17. Qc3 c5 18. Bg5 Nd7 19. a4 Ra6 20. b3 Rfa8 21. Rad1 Nf8 22. Rf5 f6 23. Be3 Rd8 24. Rdf1 Ng6 25. R5f2 Raa8 26. Kh2 Ne7 27. g4 Nc6 28. Rf5 Nd4 29. Bxd4 cxd4 30. Qd2 h6 31. h4 Rd6 32. Qg2 Rc6 33. R1f2 Ra5 34. Kg1 Rac5 35. b4 Rc3 36. b5 Rd6 37. g5 fxg5 38. hxg5 Ra3 39. Qg3 Ra1+ 40. Kg2 hxg5 41. Qxe5 Qxe5 42. Rxe5 Rd7 43. Rxg5 Rxa4 44. Rg6 Rb4 45. Rf5 Rb2 46. Rc6 Kh7 1/2-1/2

[Event "Florianopolis op 3rd"]
[Site "Florianopolis"]
[Date "2017.01.20"]
[Round "1"]
[White "Yamamoto, Eduardo Akio"]
[Black "Matsuura, Frederico"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "2106"]
[BlackElo "2322"]
[PlyCount "55"]
[EventDate "2017.01.20"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 f5 4. Qh5+ g6 5. Qe2 Be7 6. Ngf3 Nf6 7. g3 0-0 8. e5 Nfd7 9. h4 c5 10. Bg2 Nc6 11. 0-0 h6 12. Nb3 g5 13. c4 d4 14. Bd2 Kg7 15. Rae1 g4 16. Nh2 Ndxe5 17. f3 h5 18. fxg4 hxg4 19. Bf4 Ng6 20. Bc1 Bd6 21. Bg5 Qc7 22. Nxg4 fxg4 23. Qxg4 e5 24. Qh5 Nce7 25. Qh6+ Kg8 26. Bxe7 Qxe7 27. Qxg6+ Kh8 28. Qh6+ 1-0

[Event "Florianopolis Winter U220 op"]
[Site "Florianopolis"]
[Date "2016.08.20"]
[Round "4"]
[White "Ikeda, Vinicius Yasuto"]
[Black "Yamamoto, Eduardo Akio"]
[Result "0-1"]
[ECO "A90"]
[WhiteElo "1948"]
[BlackElo "2065"]
[PlyCount "84"]
[EventDate "2016.08.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 174 Extra"]
[Source "ChessBase"]
[SourceDate "2016.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.10"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. Nf3 Nf6 4. g3 d5 5. Bg2 c6 6. 0-0 Bd6 7. b3 Qe7 8. Bb2 Nbd7 9. Nbd2 Ne4 10. Rc1 0-0 11. Ne5 Nxe5 12. dxe5 Bc5 13. Nf3 Bd7 14. Nd4 Bxd4 15. Qxd4 c5 16. Ba3 cxd4 17. Bxe7 Rfe8 18. Ba3 Nc3 19. Rc2 dxc4 20. bxc4 Rac8 21. c5 b6 22. cxb6 axb6 23. Rd2 Bb5 24. Bf3 Rc4 25. Bd6 Bc6 26. Bxc6 Rxc6 27. Re1 Rc4 28. e3 dxe3 29. Rxe3 Ra8 30. Rc2 Rac8 31. Kg2 Nd1 32. Rxc4 Nxe3+ 33. fxe3 Rxc4 34. a3 Kf7 35. Kf3 Ke8 36. h3 Kd7 37. Ke2 Kc6 38. Kd3 Re4 39. Kd2 Kd5 40. Kd3 h5 41. Bc7 b5 42. Bd6 h4 0-1

[Event "Florianopolis Winter U220 op"]
[Site "Florianopolis"]
[Date "2016.08.20"]
[Round "5"]
[White "Yamamoto, Eduardo Akio"]
[Black "Barbosa, Jefferson Lucas Mun"]
[Result "0-1"]
[ECO "B53"]
[WhiteElo "2065"]
[BlackElo "2018"]
[PlyCount "110"]
[EventDate "2016.08.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 174 Extra"]
[Source "ChessBase"]
[SourceDate "2016.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. c4 Nf6 8. Nc3 g6 9. 0-0 Bg7 10. Qd3 0-0 11. Be3 Qc7 12. Rac1 Nd7 13. Bd4 Nc5 14. Qe2 Bh6 15. Rcd1 Ne6 16. Be3 Bg7 17. Nd5 Qd7 18. b4 b6 19. e5 Rad8 20. exd6 exd6 21. b5 Ba8 22. Rd2 Rfe8 23. Rfd1 Nc5 24. Qf1 Ne4 25. Rc2 Rc8 26. Rdc1 f5 27. Qd3 Qf7 28. h3 h6 29. Nd2 Nc5 30. Qa3 g5 31. Nf3 Re4 32. Nd2 Re6 33. Nf1 f4 34. Bxc5 dxc5 35. Rd1 Rce8 36. Qf3 Re4 37. a4 Bd4 38. Nd2 Re2 39. Rf1 Qf5 40. Ra2 R2e5 41. Qh5 Bxd5 42. cxd5 Kh7 43. Nf3 Re4 44. h4 Bf6 45. Rd2 Qg6 46. Qg4 gxh4 47. Qh3 c4 48. d6 c3 49. Rc2 Rd8 50. d7 Re7 51. Rfc1 Rg7 52. Re2 Rdxd7 53. Re6 Rd5 54. Rxc3 Rd1+ 55. Kh2 Qg3+ 0-1

[Event "Florianopolis Winter U220 op"]
[Site "Florianopolis"]
[Date "2016.08.20"]
[Round "3"]
[White "Yamamoto, Eduardo Akio"]
[Black "Calcado, Acyr Rogerio"]
[Result "1-0"]
[ECO "C36"]
[WhiteElo "2065"]
[BlackElo "2139"]
[PlyCount "71"]
[EventDate "2016.08.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 174 Extra"]
[Source "ChessBase"]
[SourceDate "2016.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.10"]
[SourceQuality "1"]

1. e4 e5 2. f4 d5 3. Nf3 exf4 4. exd5 Nf6 5. Bb5+ c6 6. dxc6 Nxc6 7. d4 Bd6 8. 0-0 0-0 9. Nc3 Bg4 10. Ne2 Qb6 11. Bxc6 bxc6 12. Bxf4 Bxf4 13. Nxf4 Qxb2 14. Qd3 Qb6 15. Rab1 Qa5 16. Ne5 Rac8 17. h3 Be6 18. Nxe6 fxe6 19. Rb7 Nh5 20. c3 Qxa2 21. Qd1 Rxf1+ 22. Qxf1 Rf8 23. Rf7 Nf6 24. Rxf8+ Kxf8 25. Nxc6 Qc2 26. Qa1 Ne4 27. Qf1+ Nf6 28. Qf3 a6 29. Qg3 Ne4 30. Qb8+ Kf7 31. Ne5+ Kf6 32. Qf8+ Kg5 33. h4+ Kh6 34. Qf4+ Kh5 35. Qg4+ Kh6 36. Nf7# 1-0

[Event "Florianopolis Winter U220 op"]
[Site "Florianopolis"]
[Date "2016.08.19"]
[Round "2"]
[White "Piccoli, Lucas Fonseca"]
[Black "Yamamoto, Eduardo Akio"]
[Result "0-1"]
[ECO "A21"]
[WhiteElo "1812"]
[BlackElo "2065"]
[PlyCount "138"]
[EventDate "2016.08.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 174 Extra"]
[Source "ChessBase"]
[SourceDate "2016.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.10"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 f5 3. g3 Nf6 4. Bg2 g6 5. d3 Bg7 6. e3 0-0 7. Nge2 c6 8. 0-0 d6 9. b3 Be6 10. Ba3 Bf7 11. Rb1 Re8 12. d4 e4 13. Qd2 a5 14. d5 c5 15. Nb5 Ng4 16. Bb2 Ne5 17. Bxe5 Bxe5 18. h4 h6 19. Bh3 Qd7 20. f4 exf3 21. Rxf3 Qe7 22. Rbf1 Rf8 23. Nec3 Nd7 24. Qc2 Nf6 25. Kg2 Rae8 26. Qd3 Bxc3 27. Nxc3 Ne4 28. Qc2 h5 29. Nxe4 Qxe4 30. Qxe4 Rxe4 31. Re1 a4 32. Rf2 Ra8 33. Kf1 Rae8 34. Rfe2 b5 35. cxb5 axb3 36. axb3 Rb4 37. Bg2 Rxb3 38. Kf2 Rxb5 39. e4 fxe4 40. Rxe4 Rb2+ 41. R4e2 Rbxe2+ 42. Rxe2 Rxe2+ 43. Kxe2 Kg7 44. Ke3 Kf6 45. Kf4 Be8 46. Bf1 Bd7 47. Bd3 Bf5 48. Be2 Bc2 49. Bc4 Bb1 50. Be2 Ba2 51. Ke4 Bb3 52. Bf1 Ba2 53. Be2 Bb1+ 54. Kf4 Bf5 55. Bf1 Ke7 56. Bc4 Kd7 57. Kg5 Ke7 58. Be2 Kf7 59. Bf1 Be4 60. Bc4 Kg7 61. Kf4 Bc2 62. Kg5 Bb1 63. Bb3 Bd3 64. Ba2 c4 65. Kf4 c3 66. Ke3 c2 67. Kd2 Kf6 68. Bb3 Ke5 69. Ba2 Ke4 0-1

[Event "Florianopolis Winter U220 op"]
[Site "Florianopolis"]
[Date "2016.08.19"]
[Round "1"]
[White "Yamamoto, Eduardo Akio"]
[Black "Souza Junior, Vanderval Borges D"]
[Result "1-0"]
[ECO "C36"]
[WhiteElo "2065"]
[BlackElo "1680"]
[PlyCount "127"]
[EventDate "2016.08.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 174 Extra"]
[Source "ChessBase"]
[SourceDate "2016.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.10"]
[SourceQuality "1"]

1. e4 e5 2. f4 d5 3. Nf3 exf4 4. exd5 Nf6 5. Bc4 Nxd5 6. 0-0 Be7 7. d4 0-0 8. Bxd5 Qxd5 9. Bxf4 c5 10. Nc3 Qc4 11. Qe1 Bf6 12. Be5 Nd7 13. Nd2 Qe6 14. Bxf6 Nxf6 15. dxc5 Qc6 16. Nb3 Be6 17. Qe5 Bxb3 18. axb3 Nd7 19. Qf4 Nxc5 20. Rad1 Ne6 21. Qg4 Rad8 22. Kh1 Rxd1 23. Rxd1 Rd8 24. Rxd8+ Nxd8 25. Qd4 Qe8 26. Qxa7 Qe1+ 27. Qg1 Qxg1+ 28. Kxg1 Nc6 29. Ne2 Nb4 30. Nd4 Kf8 31. Kf2 Ke7 32. Ke2 g6 33. c3 Nd5 34. g3 f5 35. Kd3 Nf6 36. Nf3 Kd6 37. Kd4 h6 38. Nh4 Ng4 39. Nf3 Nf6 40. c4 b6 41. b4 Ng4 42. c5+ Kc7 43. Kd5 Ne3+ 44. Ke6 Nc2 45. Kf6 Nxb4 46. cxb6+ Kxb6 47. Kxg6 Nd3 48. Kxf5 Nxb2 49. Kg6 Kc6 50. Kxh6 Kd6 51. Kg6 Ke7 52. Kg7 Nd3 53. h4 Nc5 54. Ng5 Nd7 55. Ne4 Nf8 56. h5 Ne6+ 57. Kg8 Nf8 58. h6 Ng6 59. h7 Ke6 60. h8Q Nxh8 61. Kxh8 Kf5 62. Nf2 Kg5 63. Kg7 Kf5 64. Kh6 1-0

[Event "Catarinense-ch"]
[Site "Fraiburgo"]
[Date "2016.04.17"]
[Round "7"]
[White "Dickel, Henrique de Oliveir"]
[Black "Yamamoto, Eduardo Akio"]
[Result "0-1"]
[ECO "B29"]
[WhiteElo "1897"]
[BlackElo "2065"]
[PlyCount "80"]
[EventDate "2016.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 171 Extra"]
[Source "ChessBase"]
[SourceDate "2016.04.26"]
[SourceVersion "1"]
[SourceVersionDate "2016.04.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nf6 3. Nc3 d5 4. exd5 Nxd5 5. Bc4 Nb6 6. Bb5+ Bd7 7. Bxd7+ Qxd7 8. d4 e6 9. 0-0 Nc6 10. Bf4 Nxd4 11. Ne5 Qd8 12. Qh5 g6 13. Qh3 Bg7 14. Rad1 Qe7 15. Rfe1 0-0 16. Ne4 Nd5 17. Bh6 Bxe5 18. Bxf8 Rxf8 19. Nxc5 Qxc5 20. Rxe5 Qxc2 21. Qd3 Qxd3 22. Rxd3 Nc6 23. Re1 Rc8 24. Rc1 Kf8 25. a3 a5 26. Rb3 Rc7 27. g4 Ke7 28. Kf1 Kd6 29. g5 f6 30. h4 f5 31. Rd3 Ne5 32. Rxc7 Kxc7 33. Rd1 Nc6 34. h5 gxh5 35. Kg2 Nf4+ 36. Kg3 Ng6 37. f4 e5 38. fxe5 Ncxe5 39. Rc1+ Kb6 40. Rc8 Nf7 0-1

[Event "Catarinense-ch"]
[Site "Fraiburgo"]
[Date "2016.04.17"]
[Round "6"]
[White "Yamamoto, Eduardo Akio"]
[Black "Cunha, Lucas Aguiar"]
[Result "0-1"]
[ECO "A08"]
[WhiteElo "2065"]
[BlackElo "2313"]
[PlyCount "94"]
[EventDate "2016.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 171 Extra"]
[Source "ChessBase"]
[SourceDate "2016.04.26"]
[SourceVersion "1"]
[SourceVersionDate "2016.04.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d3 Nc6 4. g3 Nf6 5. Bg2 d5 6. Nbd2 g6 7. 0-0 Bg7 8. Re1 0-0 9. c3 a5 10. a4 b6 11. exd5 exd5 12. Nf1 Be6 13. Bf4 Nh5 14. Bg5 Qd7 15. Ra3 d4 16. c4 Rae8 17. Qd2 Nb4 18. Re2 Bf5 19. Rxe8 Rxe8 20. Nh4 Bg4 21. Be4 f5 22. Bf3 Bxf3 23. Nxf3 f4 24. Bxf4 Qg4 25. Kg2 Re2 26. h3 Rxd2 27. hxg4 Nxf4+ 28. gxf4 Rxd3 29. N1d2 Rxa3 30. bxa3 Nd3 31. Kg3 Nb2 32. g5 Nxa4 33. Ne5 Bxe5 34. fxe5 Nb2 35. f4 Kf7 36. Kf3 a4 37. Kf2 Ke6 38. Kf3 Kf5 39. Ke2 Ke6 40. Kf2 Nd3+ 41. Kf3 Kf5 42. Ne4 Nxf4 43. Nd6+ Kxe5 44. Nc8 Nd3 45. Nxb6 Nb2 46. Nd7+ Kd6 47. Nf6 Nxc4 0-1

[Event "Catarinense-ch"]
[Site "Fraiburgo"]
[Date "2016.04.16"]
[Round "5"]
[White "Dos Santos, Otavio Belegarde"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1/2-1/2"]
[ECO "A85"]
[WhiteElo "1816"]
[BlackElo "2065"]
[PlyCount "111"]
[EventDate "2016.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 171 Extra"]
[Source "ChessBase"]
[SourceDate "2016.04.26"]
[SourceVersion "1"]
[SourceVersionDate "2016.04.26"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. Nf3 Nf6 4. Nc3 d5 5. Bg5 c6 6. e3 Bd6 7. Rc1 0-0 8. Bd3 Qe8 9. Bxf6 Rxf6 10. Ne5 b6 11. Qc2 Rf8 12. 0-0 g6 13. f3 Bb7 14. e4 Bxe5 15. dxe5 d4 16. Ne2 c5 17. b4 Nc6 18. bxc5 bxc5 19. Rb1 Qe7 20. Nf4 Rab8 21. exf5 gxf5 22. Rfe1 Nb4 23. Qf2 Ba6 24. Bf1 Kh8 25. Nh5 Qg5 26. Nf6 Qg7 27. Rb3 Nc6 28. f4 Rxb3 29. axb3 Rb8 30. Ra1 Bc8 31. Ra3 Rb4 32. Be2 Bb7 33. Ne8 Qg8 34. Bh5 Ne7 35. Nd6 Ng6 36. Rxa7 Rxb3 37. Rxb7 Rxb7 38. Nxb7 Qa8 39. Qb2 Nxf4 40. Bf3 Nd3 41. Nxc5 Nxb2 42. Bxa8 d3 43. Nxe6 Nxc4 44. Kf2 Nxe5 45. Ke3 Ng4+ 46. Kxd3 Nxh2 47. Ke3 Ng4+ 48. Kf4 Nh6 49. Kg5 Ng4 50. Kxf5 Ne3+ 51. Kg5 Kg8 52. Kf4 Nxg2+ 53. Bxg2 Kf7 54. Nd4 Kf6 55. Nf3 h6 56. Kg4 1/2-1/2

[Event "Catarinense-ch"]
[Site "Fraiburgo"]
[Date "2016.04.16"]
[Round "4"]
[White "Yamamoto, Eduardo Akio"]
[Black "Melo, Maicon Joao"]
[Result "1-0"]
[ECO "B53"]
[WhiteElo "2065"]
[BlackElo "2055"]
[PlyCount "67"]
[EventDate "2016.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 171 Extra"]
[Source "ChessBase"]
[SourceDate "2016.04.26"]
[SourceVersion "1"]
[SourceVersionDate "2016.04.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. d4 cxd4 5. Qxd4 Bg4 6. Qd3 Nf6 7. Bg5 Nd7 8. Nc3 Nb4 9. Qd2 Bxf3 10. gxf3 h6 11. Be3 a6 12. Be2 Rc8 13. f4 b5 14. a3 Qa5 15. Rd1 Nc6 16. e5 b4 17. axb4 Nxb4 18. Bg4 e6 19. exd6 Rc6 20. 0-0 Rxd6 21. Qe2 Nf6 22. Ra1 Qc7 23. Bf3 Be7 24. Ra4 Rd7 25. Ne4 a5 26. c3 Nbd5 27. Nxf6+ Bxf6 28. Rc4 Qb8 29. Ra1 Bd8 30. f5 0-0 31. Bxd5 exd5 32. Rg4 Qe5 33. Qf3 Kh7 34. Bd4 1-0

[Event "Catarinense-ch"]
[Site "Fraiburgo"]
[Date "2016.04.15"]
[Round "2"]
[White "Umetsubo, Cesar Hidemitsu"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1-0"]
[ECO "B04"]
[WhiteElo "2361"]
[BlackElo "2065"]
[PlyCount "77"]
[EventDate "2016.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 171 Extra"]
[Source "ChessBase"]
[SourceDate "2016.04.26"]
[SourceVersion "1"]
[SourceVersionDate "2016.04.26"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 dxe5 5. Nxe5 c6 6. Be2 Nd7 7. Nf3 g6 8. 0-0 Bg7 9. c4 N5b6 10. Nc3 0-0 11. Bf4 Nf6 12. Qb3 Bg4 13. Rad1 Qc8 14. h3 Bf5 15. Rfe1 Re8 16. Bf1 h6 17. a4 g5 18. Bh2 Nbd7 19. Re3 Nf8 20. Rde1 Ng6 21. Ne5 Nxe5 22. Bxe5 Qd7 23. a5 Nh7 24. Na4 Bxe5 25. Rxe5 Rab8 26. Nc5 Qc8 27. Rxe7 Rxe7 28. Rxe7 b6 29. axb6 axb6 30. Na4 Nf8 31. d5 Qd8 32. Ra7 cxd5 33. cxd5 Qd6 34. Qf3 Bg6 35. Nc3 Rd8 36. Bd3 Nd7 37. Bxg6 Qxg6 38. Qe3 Qf6 39. Rxd7 1-0

[Event "Catarinense-ch"]
[Site "Fraiburgo"]
[Date "2016.04.15"]
[Round "3"]
[White "Yamamoto, Eduardo Akio"]
[Black "Boeira, Dimitri Ariel Pires"]
[Result "0-1"]
[ECO "A08"]
[WhiteElo "2065"]
[BlackElo "1830"]
[PlyCount "90"]
[EventDate "2016.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 171 Extra"]
[Source "ChessBase"]
[SourceDate "2016.04.26"]
[SourceVersion "1"]
[SourceVersionDate "2016.04.26"]
[SourceQuality "1"]

1. e4 e6 2. d3 c5 3. Nf3 Nc6 4. g3 d5 5. Nbd2 Nf6 6. Bg2 g6 7. 0-0 Bg7 8. Re1 0-0 9. c3 b6 10. e5 Nd7 11. d4 cxd4 12. cxd4 f6 13. exf6 Nxf6 14. b3 b5 15. Bb2 Qb6 16. a3 a5 17. Rc1 Bd7 18. Bh3 Ne7 19. Qe2 Nf5 20. Qd3 b4 21. a4 Rac8 22. Ne5 Rxc1 23. Rxc1 Rc8 24. Re1 Be8 25. Kg2 Bh6 26. Ng4 Nxg4 27. Bxg4 Bg7 28. Nf3 Bf6 29. h4 Bf7 30. Ne5 Be8 31. h5 Nh6 32. hxg6 Bxe5 33. gxh7+ Kh8 34. Rxe5 Nxg4 35. Rg5 Nf6 36. Qe3 Qd6 37. Re5 Bd7 38. Qg5 Nxh7 39. Qh4 Qf8 40. Rh5 Qf7 41. Rh6 Rc2 42. Qd8+ Be8 43. Rxh7+ Kxh7 44. Qh4+ Kg8 45. Qg5+ Qg6 0-1

[Event "Catarinense-ch"]
[Site "Fraiburgo"]
[Date "2016.04.14"]
[Round "1"]
[White "Dalanhol, Joao Vitor"]
[Black "Yamamoto, Eduardo Akio"]
[Result "0-1"]
[ECO "C11"]
[WhiteElo "1891"]
[BlackElo "2065"]
[PlyCount "86"]
[EventDate "2016.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "CBM 171 Extra"]
[Source "ChessBase"]
[SourceDate "2016.04.26"]
[SourceVersion "1"]
[SourceVersionDate "2016.04.26"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 d5 3. e5 Nfd7 4. d4 e6 5. Nce2 c5 6. c3 Nc6 7. f4 Be7 8. Nf3 0-0 9. Ng3 Qb6 10. Bd3 f6 11. 0-0 cxd4 12. cxd4 fxe5 13. fxe5 Ndxe5 14. Bxh7+ Kxh7 15. Nxe5 Rxf1+ 16. Kxf1 Nxe5 17. Qh5+ Kg8 18. Qe8+ Bf8 19. dxe5 Qc6 20. Qxc6 bxc6 21. Be3 Ba6+ 22. Ke1 c5 23. Rc1 Rc8 24. Kd2 Be7 25. Nh5 d4 26. Bf4 c4 27. a3 Bb7 28. g4 c3+ 29. bxc3 Bxa3 30. Ra1 dxc3+ 31. Kc2 Be4+ 32. Kb3 Bf8 33. Rxa7 c2 34. Bc1 Rb8+ 35. Kc3 Rb1 36. Ra4 Bh7 37. Kd2 Bb4+ 38. Ke2 Rxc1 39. Rxb4 Re1+ 40. Kxe1 c1Q+ 41. Ke2 Qc2+ 42. Kf1 Qd1+ 43. Kg2 Qd2+ 0-1

[Event "Santa Catarina-ch sf1"]
[Site "Sao Bento do Sul"]
[Date "2016.03.06"]
[Round "5"]
[White "Cunha, Lucas Aguiar"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1/2-1/2"]
[ECO "B04"]
[WhiteElo "2327"]
[PlyCount "42"]
[EventDate "2016.03.04"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 dxe5 5. Nxe5 c6 6. g3 Nd7 7. Nf3 g6 8. Bg2 Bg7 9. 0-0 0-0 10. Qe2 Re8 11. c4 N5b6 12. a4 a5 13. Nc3 e5 14. Re1 e4 15. Bg5 f6 16. Bf4 f5 17. c5 Nd5 18. Nxd5 cxd5 19. Bd6 Nb8 20. Ne5 Nc6 21. Nxc6 bxc6 1/2-1/2

[Event "Santa Catarina-ch sf1"]
[Site "Sao Bento do Sul"]
[Date "2016.03.06"]
[Round "6"]
[White "Yamamoto, Eduardo Akio"]
[Black "Cadilhac, Igor Tokuichi Kikuc"]
[Result "1-0"]
[ECO "B53"]
[BlackElo "2127"]
[PlyCount "73"]
[EventDate "2016.03.04"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. c4 Nf6 8. Nc3 g6 9. 0-0 Bg7 10. Be3 0-0 11. Qd3 Ng4 12. Bd4 e5 13. Be3 Nxe3 14. Qxe3 f5 15. Rad1 Qc7 16. b3 Rad8 17. Nd5 Bxd5 18. Rxd5 fxe4 19. Nd2 b6 20. Nxe4 Rf7 21. Rfd1 Bf8 22. Qd2 Rf4 23. Nxd6 Bxd6 24. Rxd6 Rd4 25. Rxd4 exd4 26. Qe2 Qd7 27. Rd3 Qf5 28. h3 Qd7 29. Qe5 Qd6 30. Qxd6 Rxd6 31. Kf1 Kf7 32. Ke2 Ke6 33. Rf3 Rd7 34. Kd3 Ke5 35. Rf8 Re7 36. Rd8 Rf7 37. Rd5+ 1-0

[Event "Santa Catarina-ch sf1"]
[Site "Sao Bento do Sul"]
[Date "2016.03.05"]
[Round "3"]
[White "Ikeda, Vinicius Yasuto"]
[Black "Yamamoto, Eduardo Akio"]
[Result "0-1"]
[ECO "A90"]
[WhiteElo "2002"]
[PlyCount "38"]
[EventDate "2016.03.04"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. Nf3 Nf6 4. g3 c6 5. Bg2 d5 6. Bf4 Bd6 7. Nbd2 b6 8. Qc2 0-0 9. c5 bxc5 10. dxc5 Bxf4 11. gxf4 Qc7 12. e3 Ba6 13. 0-0-0 Nbd7 14. Nd4 Rfe8 15. N2b3 Bc4 16. Bf1 Bxb3 17. Nxb3 a5 18. a4 Rab8 19. Bd3 Rb4 0-1

[Event "Santa Catarina-ch sf1"]
[Site "Sao Bento do Sul"]
[Date "2016.03.05"]
[Round "4"]
[White "Yamamoto, Eduardo Akio"]
[Black "Melo, Maicon Joao"]
[Result "1-0"]
[ECO "B53"]
[BlackElo "2027"]
[PlyCount "53"]
[EventDate "2016.03.04"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. d4 cxd4 5. Qxd4 Bd7 6. Bxc6 Bxc6 7. c4 Nf6 8. Nc3 g6 9. Be3 Bg7 10. h3 0-0 11. Qd3 Qa5 12. 0-0 Nd7 13. Bd4 Nc5 14. Qe2 e5 15. Bxc5 dxc5 16. Rfd1 f5 17. Rd6 fxe4 18. Ng5 e3 19. fxe3 Rf5 20. Ne6 Bf8 21. Rdd1 Be7 22. Nd5 Bh4 23. Rf1 Bd7 24. Rxf5 gxf5 25. Qh5 Bxe6 26. Qxh4 Qd8 27. Qg3+ 1-0

[Event "Santa Catarina-ch sf1"]
[Site "Sao Bento do Sul"]
[Date "2016.03.04"]
[Round "1"]
[White "Boeck, Moacir Luis"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1/2-1/2"]
[ECO "B04"]
[WhiteElo "1841"]
[PlyCount "43"]
[EventDate "2016.03.04"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. Nc3 Nb6 4. Nf3 d6 5. d4 Bg4 6. h3 Bh5 7. Bb5+ c6 8. Bd3 e6 9. Bf4 d5 10. Qe2 a6 11. 0-0-0 N6d7 12. g4 Bg6 13. Bxg6 hxg6 14. h4 Qa5 15. h5 gxh5 16. Rxh5 Rxh5 17. gxh5 b5 18. Rh1 b4 19. Nb1 c5 20. h6 gxh6 21. Bxh6 Bxh6+ 22. Rxh6 1/2-1/2

[Event "Santa Catarina-ch sf1"]
[Site "Sao Bento do Sul"]
[Date "2016.03.04"]
[Round "2"]
[White "Yamamoto, Eduardo Akio"]
[Black "Cezar, Ricardo de Almeida"]
[Result "1-0"]
[ECO "B53"]
[BlackElo "1584"]
[PlyCount "67"]
[EventDate "2016.03.04"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 a6 5. h3 h6 6. c4 e5 7. Qd2 Nf6 8. Nc3 Nbd7 9. Bd3 Be7 10. 0-0 0-0 11. Re1 Nc5 12. Bf1 Be6 13. b4 Ncd7 14. Bb2 b6 15. Rac1 Rc8 16. Nd5 Bxd5 17. cxd5 b5 18. a4 bxa4 19. Bxa6 Ra8 20. Bb7 Ra7 21. Bc6 Qb6 22. Ba3 Rc7 23. Rc4 Rfc8 24. Rec1 Qa6 25. b5 Qb6 26. Qc2 Nf8 27. Qxa4 Qa7 28. Qb3 Qb6 29. Bb4 Ng6 30. Bd2 Nh5 31. Be3 Qb8 32. Qc2 Nf6 33. b6 Rxc6 34. dxc6 1-0

[Event "Blumenau Santa Catarina Cup"]
[Site "Blumenau"]
[Date "2013.02.10"]
[Round "5"]
[White "Ribeiro, Regina"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1/2-1/2"]
[ECO "A93"]
[WhiteElo "2029"]
[BlackElo "2100"]
[PlyCount "123"]
[EventDate "2013.02.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 152 Extra"]
[Source "ChessBase"]
[SourceDate "2013.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2013.02.25"]
[SourceQuality "1"]

1. Nf3 e6 2. d4 f5 3. g3 Nf6 4. Bg2 Be7 5. c4 0-0 6. 0-0 d5 7. b3 Bd7 8. Ba3 Be8 9. Qc2 Ne4 10. Bxe7 Qxe7 11. Ne5 c6 12. f3 Nd6 13. Nc3 Nd7 14. c5 Nf7 15. Nxd7 Bxd7 16. f4 g5 17. e3 Nh6 18. Nd1 Qg7 19. Qc3 Ng4 20. Nf2 Nf6 21. Nd3 Be8 22. Ne5 Bh5 23. b4 Ne4 24. Bxe4 fxe4 25. Rf2 gxf4 26. exf4 Bg4 27. Nxg4 Qxg4 28. a4 a6 29. Qe3 Kh8 30. Kg2 Qg7 31. h3 Rf7 32. g4 h6 33. Raf1 Raf8 34. Kg3 Kh7 35. h4 h5 36. g5 Qg6 37. Qe2 Rf5 38. Qe3 Qg7 39. Rb1 Qc7 40. b5 axb5 41. axb5 Kg6 42. bxc6 bxc6 43. Rb6 R8f7 44. Rf1 e5 45. dxe5 Rxe5 46. Rfb1 Re6 47. Rb7 Qc8 48. Rb8 Qd7 49. R1b7 Qxb7 50. Rxb7 Rxb7 51. Qc3 e3 52. Qh8 Kf5 53. Qxh5 Ke4 54. f5 Re5 55. f6 Kd3 56. Qd1+ Kc4 57. Qc1+ Kd3 58. Qd1+ Kc4 59. Qc1+ Kd4 60. Qd1+ Ke4 61. Qa4+ Kd3 62. Qd1+ 1/2-1/2

[Event "Blumenau Santa Catarina Cup"]
[Site "Blumenau"]
[Date "2013.02.10"]
[Round "6"]
[White "Sprotte, Daniel Gustavo"]
[Black "Yamamoto, Eduardo Akio"]
[Result "0-1"]
[ECO "C11"]
[WhiteElo "1874"]
[BlackElo "2100"]
[PlyCount "46"]
[EventDate "2013.02.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 152 Extra"]
[Source "ChessBase"]
[SourceDate "2013.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2013.02.25"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 d5 3. e5 Nfd7 4. d4 e6 5. Nce2 c5 6. c3 Nc6 7. f4 f6 8. Nf3 Be7 9. Ng3 Qb6 10. Bd3 cxd4 11. cxd4 Bb4+ 12. Bd2 Nxd4 13. Nxd4 Qxd4 14. Qh5+ Ke7 15. 0-0-0 Bxd2+ 16. Rxd2 Qxf4 17. Rf1 Qg5 18. exf6+ gxf6 19. Qe2 Ne5 20. Kb1 Bd7 21. Nh5 Nxd3 22. Rxd3 Bb5 23. Nxf6 Bxd3+ 0-1

[Event "Blumenau Santa Catarina Cup"]
[Site "Blumenau"]
[Date "2013.02.09"]
[Round "2"]
[White "Boeck, Moacir Luis"]
[Black "Yamamoto, Eduardo Akio"]
[Result "0-1"]
[ECO "A80"]
[WhiteElo "1954"]
[BlackElo "2100"]
[PlyCount "117"]
[EventDate "2013.02.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 152 Extra"]
[Source "ChessBase"]
[SourceDate "2013.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2013.02.25"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 f5 3. Bg5 Nf6 4. Nbd2 Be7 5. Bxf6 Bxf6 6. e4 0-0 7. Bd3 g6 8. 0-0 d6 9. Re1 Kh8 10. exf5 gxf5 11. Bc4 Re8 12. c3 e5 13. dxe5 dxe5 14. h4 e4 15. Ng5 Bxg5 16. hxg5 Qxg5 17. Nxe4 fxe4 18. Qd4+ Qg7 19. Rxe4 Rf8 20. Qxg7+ Kxg7 21. Re7+ Kh6 22. Rxc7 Nd7 23. Re1 Rb8 24. Re6+ Rf6 25. Re7 Rc6 26. Re6+ Rxe6 27. Bxe6 Nb6 28. Bxc8 Nxc8 29. c4 Nd6 30. c5 Ne4 31. f3 Nf6 32. Kf2 Kg5 33. b4 Nd5 34. Rg7+ Kf6 35. Rg4 Nc3 36. a3 Re8 37. Rc4 Nd1+ 38. Kg3 Rg8+ 39. Kh3 Nf2+ 40. Kh2 Ke5 41. Rc2 Nd3 42. Re2+ Kf6 43. g4 Rg7 44. Kg3 Re7 45. Rd2 Rd7 46. f4 Nxc5 47. Rc2 Ne6 48. Rc3 h6 49. Kf3 Rc7 50. Rd3 a6 51. Rd6 Rc3+ 52. Ke4 Rc4+ 53. Ke3 Rc3+ 54. Ke4 Rc6 55. Rd7 Rc4+ 56. Ke3 Rxf4 57. Rxb7 Rxg4 58. Rb6 Rg3+ 59. Ke4 0-1

[Event "Blumenau Santa Catarina Cup"]
[Site "Blumenau"]
[Date "2013.02.09"]
[Round "3"]
[White "Yamamoto, Eduardo Akio"]
[Black "Menna Barreto, Felipe Kubiaki"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2100"]
[BlackElo "2285"]
[PlyCount "129"]
[EventDate "2013.02.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 152 Extra"]
[Source "ChessBase"]
[SourceDate "2013.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2013.02.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. c4 e6 4. Nc3 Nc6 5. a3 Nge7 6. d4 cxd4 7. Nxd4 Nxd4 8. Qxd4 Nc6 9. Qd1 Bc5 10. Be2 0-0 11. 0-0 Qf6 12. Na4 Bd4 13. Rb1 Rd8 14. b4 d5 15. exd5 exd5 16. c5 Bf5 17. Bd3 Be4 18. Nb6 Ne5 19. Bxe4 dxe4 20. Qh5 Nd3 21. Be3 Rab8 22. Qg4 Qg6 23. Qxg6 hxg6 24. Nc4 f5 25. g3 Bxe3 26. fxe3 Kf7 27. Rfd1 Ke6 28. Kf1 g5 29. a4 Rd5 30. Nb6 Rdd8 31. Rd2 a5 32. c6 bxc6 33. bxa5 Rd5 34. Rc2 Rxa5 35. Rxc6+ Kf7 36. Rb5 Rxb6 37. Rcxb6 Rxa4 38. Rxf5+ Kg8 39. Rxg5 Ra1+ 40. Kg2 Ne1+ 41. Kh3 Nf3 42. Rh5 Re1 43. Rb3 Re2 44. Kg4 Nxh2+ 45. Kf4 Nf1 46. Rg5 Rf2+ 47. Ke5 Rf3 48. Rb8+ Kh7 49. Rb7 Rxe3 50. Rgxg7+ Kh8 51. g4 Ra3 52. Kxe4 Nh2 53. Rh7+ Kg8 54. Rxh2 Ra4+ 55. Kf5 Ra1 56. Rg2 Rf1+ 57. Ke5 Re1+ 58. Kd6 Re8 59. Kd7 Re1 60. Kc8 Re8+ 61. Kc7 Re7+ 62. Kb8 Re8+ 63. Ka7 Re1 64. Rc2 Ra1+ 65. Kb8 1-0

[Event "Blumenau Santa Catarina Cup"]
[Site "Blumenau"]
[Date "2013.02.09"]
[Round "4"]
[White "Yamamoto, Eduardo Akio"]
[Black "Umetsubo, Cesar Hidemitsu"]
[Result "0-1"]
[ECO "C32"]
[WhiteElo "2100"]
[BlackElo "2288"]
[PlyCount "62"]
[EventDate "2013.02.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 152 Extra"]
[Source "ChessBase"]
[SourceDate "2013.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2013.02.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. Nd2 exd3 6. Bxd3 Qxd5 7. Qe2+ Qe6 8. f5 Qxe2+ 9. Nxe2 Nc6 10. c3 Bd7 11. Nb3 0-0-0 12. Bg5 Be7 13. 0-0 Rhe8 14. Rae1 Ne5 15. Bb1 h6 16. Bf4 Nc4 17. Bc1 Nd5 18. Bd3 Ne5 19. Be4 Nf6 20. Bb1 Bb5 21. Rf4 Bd3 22. Bd2 Bd6 23. Ng3 Bxb1 24. Rxb1 Neg4 25. Rf3 a5 26. Bf4 a4 27. Na5 Bc5+ 28. Kh1 Nf2+ 29. Kg1 N6g4 30. Nh1 Nh3+ 31. Kf1 Nxf4 0-1

[Event "Blumenau Santa Catarina Cup"]
[Site "Blumenau"]
[Date "2013.02.08"]
[Round "1"]
[White "Yamamoto, Eduardo Akio"]
[Black "Cunha, Lucas Aguiar"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2100"]
[BlackElo "2202"]
[PlyCount "126"]
[EventDate "2013.02.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 152 Extra"]
[Source "ChessBase"]
[SourceDate "2013.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2013.02.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. Re1 e5 6. Nc3 Nge7 7. d3 0-0 8. Bxc6 dxc6 9. Be3 b6 10. h3 Qc7 11. Qd2 Rd8 12. b3 Ba6 13. Bh6 Bh8 14. Qg5 f6 15. Qg3 Nc8 16. Nh4 Bg7 17. Bxg7 Qxg7 18. Ne2 Nd6 19. f4 Re8 20. fxe5 Rxe5 21. Nf3 Re6 22. Nf4 Ree8 23. Rf1 f5 24. e5 Nb5 25. Ne2 Rad8 26. a4 Nd4 27. Nexd4 cxd4 28. a5 Bb7 29. axb6 axb6 30. Ra7 Rd7 31. e6 Rde7 32. Qd6 Rxe6 33. Qxd4 Qxd4+ 34. Nxd4 R6e7 35. b4 Rd7 36. Nb3 Re2 37. Rf2 Re3 38. Rf3 Re2 39. Rf2 Ree7 40. Kf1 c5 41. Ra1 cxb4 42. Rf4 Rc7 43. Rc1 Ba6 44. Rxb4 Rxc2 45. Rxc2 Bxd3+ 46. Kf2 Bxc2 47. Rxb6 Be4 48. Nc5 Rc7 49. Nxe4 Rc2+ 50. Kg3 fxe4 51. Re6 Re2 52. Kf4 Rxg2 53. Rxe4 Kg7 54. Re7+ Kh6 55. Kf3 Ra2 56. Kg4 Ra4+ 57. Kg3 g5 58. Rb7 Kg6 59. Rb6+ Kh5 60. Rb3 Rf4 61. Ra3 Kg6 62. Ra6+ Rf6 63. Rxf6+ Kxf6 1/2-1/2

[Event "Festa da Uva rapid op"]
[Site "Caxias do Sul"]
[Date "2010.03.??"]
[Round "5"]
[White "Yamamoto, Eduardo Akio"]
[Black "Schutt, Ricardo de Amorim"]
[Result "1/2-1/2"]
[ECO "C00"]
[BlackElo "2180"]
[PlyCount "44"]
[EventDate "2010.03.06"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d3 d5 4. Nbd2 Nc6 5. g3 Nf6 6. Bg2 Qc7 7. 0-0 b6 8. Re1 Be7 9. c3 Ba6 10. Nf1 dxe4 11. dxe4 Rd8 12. Qa4 Bd3 13. e5 b5 14. Qf4 Nd5 15. Qg4 Bg6 16. Bg5 Bxg5 17. Qxg5 Qe7 18. Rad1 h6 19. Qh4 0-0 20. Rd2 Nb6 21. Qf4 Nd5 22. Qh4 Nb6 1/2-1/2

[Event "Catarinense-ch"]
[Site "Piratuba"]
[Date "2007.12.??"]
[Round "1"]
[White "Da Silva, Alessandro Rodrigue"]
[Black "Yamamoto, Eduardo Akio"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2223"]
[PlyCount "58"]
[EventDate "2007.12.17"]
[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 e6 2. Nd2 d5 3. Ngf3 f5 4. Ne5 Nf6 5. e3 Bd6 6. c4 c6 7. b3 0-0 8. Be2 Nbd7 9. Bb2 Ne4 10. 0-0 Qa5 11. Nxe4 dxe4 12. Nxd7 Bxd7 13. d5 cxd5 14. cxd5 e5 15. f3 Qb6 16. fxe4 Qxe3+ 17. Kh1 Qxe4 18. Rc1 Qh4 19. Rf3 f4 20. Bc3 Qh6 21. Bd2 e4 22. Rh3 Bxh3 23. gxh3 Rac8 24. Bg4 Rxc1 25. Bxc1 Qf6 26. Qc2 Qd4 27. Bb2 Qe3 28. Be2 f3 29. Bf1 Bc5 0-1

[Event "Catarinense-ch"]
[Site "Piratuba"]
[Date "2007.12.??"]
[Round "6"]
[White "Gieseler, Ronny Knoch"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1/2-1/2"]
[ECO "A80"]
[PlyCount "67"]
[EventDate "2007.12.17"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 g6 2. d4 Bg7 3. Bf4 f5 4. e3 Nf6 5. h3 d6 6. Bc4 d5 7. Bd3 0-0 8. 0-0 Ne4 9. c4 e6 10. Nc3 c6 11. Ne5 Nd7 12. Nxd7 Bxd7 13. Qc2 Be8 14. b4 Qe7 15. Rab1 g5 16. Bh2 Bf7 17. Ne2 dxc4 18. Bxe4 fxe4 19. Qxc4 e5 20. Qc5 Qxc5 21. bxc5 Bxa2 22. Rxb7 Bc4 23. Re1 Bxe2 24. Rxe2 exd4 25. exd4 Bxd4 26. Bd6 Rf7 27. Rb4 Bc3 28. Rc4 Bf6 29. Rcxe4 a5 30. Re8+ Rxe8 31. Rxe8+ Kg7 32. Ra8 Bd4 33. Rxa5 Bxf2+ 34. Kh2 1/2-1/2

[Event "Catarinense-ch"]
[Site "Piratuba"]
[Date "2007.12.??"]
[Round "4"]
[White "Mafra, Kaiser Luiz"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1/2-1/2"]
[ECO "B02"]
[WhiteElo "2138"]
[PlyCount "47"]
[EventDate "2007.12.17"]
[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 Nf6 2. e5 Nd5 3. Nc3 Nxc3 4. dxc3 d6 5. exd6 cxd6 6. Nf3 Nc6 7. Bg5 Qb6 8. Qc1 g6 9. Bc4 Bg7 10. Qf4 0-0 11. 0-0-0 Qc7 12. Bh6 Ne5 13. Bxg7 Kxg7 14. Bd5 Nxf3 15. Qxf3 e6 16. Bb3 d5 17. c4 dxc4 18. Qc3+ f6 19. Qxc4 Qxc4 20. Bxc4 e5 21. f3 h5 22. Rd6 Bf5 23. Rhd1 Rac8 24. Bd3 1/2-1/2

[Event "Catarinense-ch"]
[Site "Piratuba"]
[Date "2007.12.??"]
[Round "5"]
[White "Yamamoto, Eduardo Akio"]
[Black "Dauer, Joao Henrique"]
[Result "1-0"]
[ECO "C00"]
[PlyCount "61"]
[EventDate "2007.12.17"]
[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 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 c5 5. g3 b5 6. Bg2 Nc6 7. 0-0 Be7 8. Re1 0-0 9. e5 Nd7 10. c3 a5 11. Nf1 b4 12. h4 Ba6 13. Bf4 Nb6 14. N1h2 a4 15. a3 Na5 16. Qe2 Nb3 17. Rad1 bxa3 18. bxa3 c4 19. d4 Bxa3 20. Ng5 h6 21. Qh5 hxg5 22. hxg5 g6 23. Qh6 Re8 24. Ng4 Nd7 25. Nf6+ Nxf6 26. gxf6 Bf8 27. Qh4 Re7 28. Bf3 Bg7 29. fxe7 Qd7 30. Kg2 Ra7 31. Bg5 1-0

[Event "Catarinense-ch"]
[Site "Piratuba"]
[Date "2007.12.??"]
[Round "3"]
[White "Yamamoto, Eduardo Akio"]
[Black "Disconzi da Silva, Rodrigo"]
[Result "1/2-1/2"]
[ECO "B40"]
[BlackElo "2373"]
[PlyCount "126"]
[EventDate "2007.12.17"]
[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 e6 3. d3 b6 4. g3 Bb7 5. Bg2 d6 6. 0-0 Nd7 7. c3 Ngf6 8. Re1 Qc7 9. Nbd2 Rc8 10. h3 Be7 11. Nh2 Ne5 12. Nc4 0-0 13. f4 Nxc4 14. dxc4 Rfd8 15. Ng4 Bc6 16. Qe2 Qb7 17. a4 Nd7 18. Bd2 Re8 19. b4 Qc7 20. b5 Bb7 21. Qf2 a6 22. Ra2 Ra8 23. Rea1 Ra7 24. Be1 Rea8 25. Qe2 Bf8 26. Nf2 g6 27. g4 Qd8 28. Nd3 Bg7 29. h4 h6 30. Qd2 Bf6 31. g5 hxg5 32. hxg5 Bg7 33. Nf2 axb5 34. axb5 Rxa2 35. Rxa2 Rxa2 36. Qxa2 Qa8 37. Qxa8+ Bxa8 38. Ng4 Bb7 39. Kf2 Nf8 40. Bd2 Nd7 41. Kg3 Kf8 42. Bf3 Ke8 43. Kf2 Nf8 44. Ke2 Nh7 45. Kf2 Nf8 46. Ke2 Ke7 47. Kf2 Bc8 48. e5 Nd7 49. Bc6 dxe5 50. Bxd7 Kxd7 51. fxe5 Bb7 52. Bf4 Kd8 53. Ke3 Bg2 54. Nf2 Bf1 55. Nd3 Kc7 56. Nb2 Bf8 57. Kf2 Bh3 58. Ke3 Be7 59. Kf2 Bf5 60. Ke3 Bc2 61. Kf2 Bd8 62. Ke3 Kd7 63. Kd2 Bb3 1/2-1/2

[Event "Catarinense-ch"]
[Site "Piratuba"]
[Date "2007.12.??"]
[Round "2"]
[White "Yamamoto, Eduardo Akio"]
[Black "Sperb, Eduardo Quintana"]
[Result "1-0"]
[ECO "B01"]
[PlyCount "63"]
[EventDate "2007.12.17"]
[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 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb6 5. Nc3 e5 6. d5 Bb4 7. Qb3 Qe7 8. a3 Bxc3+ 9. Qxc3 c6 10. d6 Qe6 11. c5 Na4 12. Qc2 Nxc5 13. Qxc5 Nd7 14. Qc2 Qxd6 15. Be3 0-0 16. Bd3 g6 17. Rd1 Qe7 18. Bc4 b5 19. Ba2 c5 20. Bd5 Rb8 21. Bc6 Rd8 22. Nf3 f6 23. Bxc5 Nxc5 24. Rxd8+ Qxd8 25. Qxc5 Be6 26. 0-0 Bc4 27. Rc1 Rc8 28. b3 Be6 29. Qe3 Qd6 30. Bxb5 Rxc1+ 31. Qxc1 Bxb3 32. Qc8+ 1-0

[Event "South American-ch U18"]
[Site "Parana"]
[Date "2007.01.??"]
[Round "2"]
[White "Battistoni, Mariane"]
[Black "Yamamoto, Eduardo Akio"]
[Result "0-1"]
[ECO "B03"]
[PlyCount "50"]
[EventDate "2007.01.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. f4 Bf5 6. Be3 e6 7. Nf3 dxe5 8. fxe5 c5 9. Nc3 cxd4 10. Nxd4 Nc6 11. Nxc6 bxc6 12. Be2 Qc7 13. Qd4 Nd7 14. Bf4 Bc5 15. Qd2 Rd8 16. Rd1 0-0 17. Na4 a5 18. Nxc5 Nxc5 19. Qe3 Rxd1+ 20. Bxd1 Nd3+ 21. Kf1 Nxb2 22. Be2 Rd8 23. Bg5 Rd7 24. Qg3 Nxc4 25. Bf6 Bg6 0-1

[Event "South American-ch U18"]
[Site "Parana"]
[Date "2007.01.??"]
[Round "9"]
[White "Jarmolowicz, Mauricio"]
[Black "Yamamoto, Eduardo Akio"]
[Result "0-1"]
[ECO "B05"]
[PlyCount "101"]
[EventDate "2007.01.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 e6 6. 0-0 Be7 7. exd6 cxd6 8. c4 Nb6 9. b3 0-0 10. Nc3 Nc6 11. Be3 d5 12. cxd5 Nxd5 13. Nxd5 Qxd5 14. Qd3 Rfd8 15. Rfd1 Rac8 16. Qd2 Bb4 17. Qb2 Qa5 18. Bd2 Bxf3 19. Bxb4 Nxb4 20. Bxf3 Rd7 21. a3 Nd5 22. Rac1 Rdc7 23. b4 Qa4 24. Rxc7 Rxc7 25. Rc1 g6 26. g3 Qd7 27. Kg2 b6 28. Rc2 Rxc2 29. Qxc2 Qc7 30. Qxc7 Nxc7 31. Bc6 Kf8 32. Kf3 Ke7 33. Ke4 Kd6 34. b5 f6 35. f4 a6 36. a4 h6 37. h4 a5 38. Bb7 f5+ 39. Kd3 Nd5 40. Kd2 Nf6 41. Bf3 Nh7 42. Kc3 g5 43. Kc4 g4 44. Bg2 Nf6 45. Kd3 Nh5 46. Ke3 Nxg3 47. Kf2 Nh5 48. Ke3 Nf6 49. Kd3 Nd5 50. Bxd5 exd5 51. Ke3 0-1

[Event "South American-ch U18"]
[Site "Parana"]
[Date "2007.01.??"]
[Round "5"]
[White "Lopez Ortiz, Juan"]
[Black "Yamamoto, Eduardo Akio"]
[Result "0-1"]
[ECO "B02"]
[WhiteElo "2028"]
[PlyCount "80"]
[EventDate "2007.01.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. a4 d6 5. a5 N6d7 6. e6 fxe6 7. d4 g6 8. Bd3 Bg7 9. h4 Nf6 10. h5 e5 11. Bg5 e4 12. Bc2 Bf5 13. h6 Bf8 14. Nc3 Nc6 15. Nh3 Nb4 16. Ba4+ c6 17. Nf4 Qc7 18. Qb3 Nd3+ 19. Nxd3 exd3 20. Bxf6 exf6 21. Nd5 Qf7 22. Kd2 0-0-0 23. Nb4 d5 24. c5 a6 25. Rae1 Qc7 26. Re3 Be7 27. Rhe1 Rhe8 28. Kd1 Rd7 29. f3 g5 30. g4 Bg6 31. Re6 d2 32. R1e2 Bf7 33. Nxc6 Bxe6 34. Rxe6 Qg3 35. Na7+ Kd8 36. Bxd7 Qg1+ 37. Kxd2 Qxd4+ 38. Ke2 Kxd7 39. c6+ Kxe6 40. c7 Qxa7 0-1

[Event "South American-ch U18"]
[Site "Parana"]
[Date "2007.01.??"]
[Round "8"]
[White "Poblete Mella, Lautaro"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1-0"]
[ECO "B04"]
[PlyCount "47"]
[EventDate "2007.01.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Bc4 c6 6. 0-0 Bg7 7. Nc3 Nxc3 8. bxc3 d5 9. Bd3 0-0 10. Bf4 c5 11. Re1 Nc6 12. Rb1 a6 13. h3 b5 14. Qd2 cxd4 15. cxd4 Bd7 16. Bh6 Qc7 17. Qg5 Be6 18. Qh4 Bc8 19. Ng5 f6 20. Nxh7 Kxh7 21. Bg5+ Kg8 22. Bxg6 Rd8 23. Qh7+ Kf8 24. Bh6 1-0

[Event "South American-ch U18"]
[Site "Parana"]
[Date "2007.01.??"]
[Round "7"]
[White "Yamamoto, Eduardo Akio"]
[Black "Agreda P, Mario"]
[Result "1/2-1/2"]
[ECO "C32"]
[BlackElo "204"]
[PlyCount "79"]
[EventDate "2007.01.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 exd3 5. Bxd3 Nf6 6. Nf3 Qxd5 7. Qe2+ Qe6 8. Ne5 Bc5 9. Bc4 Qe7 10. Bxf7+ Kf8 11. Bc4 Nc6 12. Nxc6 bxc6 13. Qxe7+ Kxe7 14. Nc3 Re8 15. Na4 Kf8+ 16. Kf1 Bb6 17. Nxb6 cxb6 18. Bd3 c5 19. b3 Bb7 20. Bb2 Nd5 21. Be5 Ne3+ 22. Kf2 Ng4+ 23. Kg3 Nxe5 24. fxe5 Rxe5 25. h4 Re3+ 26. Kf2 Rae8 27. Rae1 Rxe1 28. Rxe1 Rxe1 29. Kxe1 Bxg2 30. Bxh7 Kf7 31. Kf2 Bc6 32. Bd3 Ke6 33. Ke3 Ke5 34. c3 Bd5 35. Bc2 b5 36. a3 Be6 37. b4 cxb4 38. cxb4 Bc4 39. Be4 Bf1 40. Bc2 1/2-1/2

[Event "South American-ch U18"]
[Site "Parana"]
[Date "2007.01.??"]
[Round "3"]
[White "Yamamoto, Eduardo Akio"]
[Black "Grandolio, Joaquin"]
[Result "1-0"]
[ECO "C30"]
[PlyCount "48"]
[EventDate "2007.01.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 Nc6 5. Bb5 Bd7 6. d4 exd4 7. cxd4 Bb6 8. 0-0 Nge7 9. Kh1 d5 10. e5 0-0 11. Nc3 Bg4 12. Bxc6 Nxc6 13. Be3 Qd7 14. Qd2 Ba5 15. h3 Bxc3 16. bxc3 Bf5 17. Kh2 Ne7 18. g4 Be4 19. f5 c6 20. f6 gxf6 21. exf6 Ng6 22. Bf4 Qe6 23. Be5 Nxe5 24. Qh6 Nxf3+ 1-0

[Event "South American-ch U18"]
[Site "Parana"]
[Date "2007.01.??"]
[Round "1"]
[White "Yamamoto, Eduardo Akio"]
[Black "Leon, Lucas"]
[Result "1/2-1/2"]
[ECO "C00"]
[BlackElo "1956"]
[PlyCount "48"]
[EventDate "2007.01.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[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 c5 4. Ngf3 Nf6 5. g3 Nc6 6. Bg2 Be7 7. 0-0 0-0 8. Re1 dxe4 9. dxe4 e5 10. c3 h6 11. Qc2 Be6 12. Nh4 Qc7 13. Nf5 Rac8 14. Nf1 c4 15. Nxe7+ Nxe7 16. f4 Bd7 17. h3 exf4 18. gxf4 Bc6 19. Qf2 Ng6 20. Ng3 Rfe8 21. e5 Bxg2 22. Kxg2 Nd5 23. Ne4 Rcd8 24. Bd2 Qb6 1/2-1/2

[Event "South American-ch U18"]
[Site "Parana"]
[Date "2007.01.??"]
[Round "6"]
[White "Yamamoto, Eduardo Akio"]
[Black "Valenzuela Saavedra, Elias"]
[Result "1/2-1/2"]
[ECO "B53"]
[BlackElo "2216"]
[PlyCount "113"]
[EventDate "2007.01.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[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. Qxd4 a6 5. c4 Nc6 6. Qd2 Nf6 7. Nc3 Bg4 8. Be2 e6 9. 0-0 Be7 10. b3 Qc7 11. Bb2 0-0 12. Nd4 Nxd4 13. Qxd4 Bxe2 14. Nxe2 Rfd8 15. Rac1 b6 16. Ng3 Ne8 17. Qe3 Bf6 18. Bd4 Bxd4 19. Qxd4 Qc5 20. Rfd1 Kf8 21. a4 Rdc8 22. Qd2 Qa3 23. Rc3 Rc7 24. Ne2 Rd8 25. Rd3 Qc5 26. Qf4 Rdc8 27. Nc3 Qb4 28. g4 f6 29. Ne2 Kg8 30. Qe3 Qc5 31. Nd4 Re7 32. Qd2 Qe5 33. Re1 g5 34. h4 h6 35. h5 Qc5 36. Kg2 Qc7 37. f3 Qb7 38. Ne2 b5 39. cxb5 axb5 40. a5 b4 41. Rd4 Rb8 42. Ra1 Qb5 43. Ra4 Qa6 44. Ng3 Rb5 45. Qd3 Ra7 46. Qc4 Kf7 47. Nf1 Rxa5 48. Qxa6 R7xa6 49. Rdxb4 Rxa4 50. bxa4 Nc7 51. Rb7 Rc6 52. Ne3 Ke7 53. Kf2 Kd7 54. Rb8 Ne8 55. Ke2 Rc3 56. Nd1 Ra3 57. Rb4 1/2-1/2

[Event "South American-ch U18"]
[Site "Parana"]
[Date "2007.01.??"]
[Round "4"]
[White "Zapata, Talia"]
[Black "Yamamoto, Eduardo Akio"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2035"]
[PlyCount "54"]
[EventDate "2007.01.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 Nf6 3. c4 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 b6 6. Nc3 Bb7 7. Qc2 d6 8. e4 0-0 9. Bd3 Nc6 10. 0-0 e5 11. d5 Nb4 12. Qd2 a5 13. Rab1 a4 14. a3 Nxd3 15. Qxd3 Qd7 16. Rbc1 Qe7 17. Qe3 Nd7 18. Qg5 f6 19. Qh4 g6 20. Qh6 Nc5 21. Rfe1 Nd3 22. Red1 Nxb2 23. Rd2 Nxc4 24. Ra2 Qd7 25. Nh4 Rfc8 26. Nd1 b5 27. Rc3 Qg4 0-1

[Event "Pan American-ch U14"]
[Site "Bogota"]
[Date "2004.07.29"]
[Round "9"]
[White "Yamamoto, Eduardo Akio"]
[Black "Carreno Acevedo, Jhonatan Robert"]
[Result "1/2-1/2"]
[ECO "B23"]
[PlyCount "62"]
[EventDate "2004.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. e4 c5 2. f4 Nc6 3. Nf3 g6 4. Nc3 d6 5. Bc4 Bg7 6. 0-0 e6 7. d3 Nge7 8. Qe1 a6 9. a4 0-0 10. Qh4 d5 11. Bb3 d4 12. Ne2 Na5 13. g4 Nxb3 14. cxb3 Nc6 15. g5 f6 16. Bd2 fxg5 17. fxg5 e5 18. Qg3 Be6 19. Nc1 Qb6 20. Ra3 Rf7 21. Ne1 Rxf1+ 22. Kxf1 Rf8+ 23. Kg2 Qc7 24. Nf3 Qd7 25. h3 Bxh3+ 26. Qxh3 Qxh3+ 27. Kxh3 Rxf3+ 28. Kg2 Rf7 29. Ne2 Nb4 30. Bxb4 cxb4 31. Ra1 Rc7 1/2-1/2

[Event "Pan American-ch U14"]
[Site "Bogota"]
[Date "2004.07.28"]
[Round "8"]
[White "Arango Arenas, Juan Camilo"]
[Black "Yamamoto, Eduardo Akio"]
[Result "0-1"]
[ECO "C10"]
[PlyCount "35"]
[EventDate "2004.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Be7 6. Bd3 Ngf6 7. Ng3 0-0 8. 0-0 b6 9. Qe2 Bb7 10. Re1 c5 11. Ne4 cxd4 12. Nxd4 Nc5 13. Nxf6+ Bxf6 14. Nf3 Nxd3 15. cxd3 Qd5 16. Bf4 Bd8 17. d4 Qh5 18. Be5 0-1

[Event "Pan American-ch U14"]
[Site "Bogota"]
[Date "2004.07.28"]
[Round "7"]
[White "Yamamoto, Eduardo Akio"]
[Black "Arenas Vanegas, David"]
[Result "0-1"]
[ECO "B23"]
[PlyCount "57"]
[EventDate "2004.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. e4 c5 2. f4 Nc6 3. Nf3 g6 4. Nc3 Bg7 5. Bc4 e6 6. e5 d5 7. exd6 Qxd6 8. d3 Nf6 9. 0-0 0-0 10. Qe1 a6 11. a4 b6 12. Qh4 Bb7 13. Kh1 Nd4 14. Nxd4 cxd4 15. Ne2 b5 16. Bb3 Nd7 17. f5 exf5 18. Bh6 Rfc8 19. Rae1 Bf6 20. Bg5 Bh8 21. Nf4 Ne5 22. axb5 axb5 23. h3 Bc6 24. Re2 Ra5 25. Rfe1 b4 26. Kh2 Bd5 27. Bxd5 Rxd5 28. Kg1 Rcc5 29. Qf2 0-1

[Event "Pan American-ch U14"]
[Site "Bogota"]
[Date "2004.07.27"]
[Round "6"]
[White "Abdalla, Luiz Guilherme"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1/2-1/2"]
[ECO "B40"]
[PlyCount "33"]
[EventDate "2004.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 dxe4 4. dxe4 c5 5. Ngf3 Nc6 6. g3 e5 7. Bg2 Be6 8. 0-0 h6 9. Re1 Nf6 10. Re3 Qc7 11. c3 Be7 12. Nf1 Rd8 13. Qc2 0-0 14. Bd2 Rd7 15. Rae1 Rfd8 16. h3 b5 17. Nh4 1/2-1/2

[Event "Pan American-ch U14"]
[Site "Bogota"]
[Date "2004.07.26"]
[Round "4"]
[White "Almanza, Rafael Andres"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1-0"]
[ECO "B03"]
[PlyCount "93"]
[EventDate "2004.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. f4 dxe5 6. fxe5 c5 7. d5 e6 8. Nc3 Qh4+ 9. g3 Qd4 10. Qxd4 cxd4 11. Nb5 Na6 12. d6 f6 13. Nf3 Bd7 14. Nbxd4 fxe5 15. Nxe5 Bxd6 16. Nxd7 Kxd7 17. Bh3 Rae8 18. b3 Rhf8 19. Be3 Bb4+ 20. Ke2 Nc7 21. a3 Bc3 22. Rad1 Kc8 23. Bf4 Nba8 24. Rd3 Bxd4 25. Rxd4 Nb6 26. Re1 Nd7 27. b4 Rf6 28. Red1 Rf7 29. Re4 Nf6 30. Re3 Rfe7 31. Bd6 Rd7 32. c5 Ncd5 33. Rxd5 exd5 34. Rxe8+ Nxe8 35. Bxd7+ Kxd7 36. Be5 Ke6 37. Bd4 g6 38. Ke3 Nc7 39. a4 a6 40. Kf4 h5 41. h4 Ne8 42. Be5 d4 43. Bxd4 Nc7 44. Ke4 Nd5 45. b5 axb5 46. axb5 Nb4 47. Bc3 1-0

[Event "Pan American-ch U14"]
[Site "Bogota"]
[Date "2004.07.26"]
[Round "5"]
[White "Yamamoto, Eduardo Akio"]
[Black "Chang, Andres"]
[Result "1/2-1/2"]
[ECO "C32"]
[BlackElo "1991"]
[PlyCount "62"]
[EventDate "2004.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 exd3 5. Qxd3 Nf6 6. c4 Bc5 7. Be2 0-0 8. Be3 Bxe3 9. Qxe3 Re8 10. Qd3 c6 11. Nc3 cxd5 12. cxd5 a6 13. 0-0-0 Nbd7 14. Bf3 Nc5 15. Qd4 Qd6 16. Nh3 Bf5 17. Nf2 Rec8 18. g4 Bd7 19. Kb1 b5 20. f5 a5 21. Nce4 Ncxe4 22. Bxe4 Rc4 23. Qd3 Qf4 24. Bf3 Nxg4 25. Bxg4 Qxf2 26. Bh3 Rh4 27. Rdf1 Qc5 28. Qg3 Rh6 29. Rhg1 Qd4 30. Rf4 Qf6 31. Ka1 Kh8 1/2-1/2

[Event "Pan American-ch U14"]
[Site "Bogota"]
[Date "2004.07.25"]
[Round "2"]
[White "Becerra Ramirez, Juan David"]
[Black "Yamamoto, Eduardo Akio"]
[Result "0-1"]
[ECO "B02"]
[WhiteElo "2016"]
[PlyCount "71"]
[EventDate "2004.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 d5 3. e5 Nfd7 4. Nxd5 Nxe5 5. Nc3 Nbc6 6. Bb5 a6 7. Bxc6+ Nxc6 8. Nf3 Bg4 9. h3 Bh5 10. g4 Bg6 11. d4 e6 12. a3 Be7 13. h4 h5 14. g5 Qd7 15. Be3 0-0-0 16. Qd2 Bf5 17. Nh2 Nxd4 18. Bxd4 Qxd4 19. 0-0-0 Qxh4 20. Nf3 Rxd2 21. Nxh4 Rxc2+ 22. Kb1 Rxf2+ 23. Nxf5 Rxf5 24. Rc1 Bxg5 25. Rc2 h4 26. Rch2 Be7 27. Rc2 g5 28. Rhc1 c6 29. Ne4 g4 30. Rg1 Rf4 31. Re2 h3 32. Nf2 Rxf2 33. Rxf2 Bc5 34. Rfg2 h2 35. Rh1 g3 36. b4 0-1

[Event "Pan American-ch U14"]
[Site "Bogota"]
[Date "2004.07.25"]
[Round "3"]
[White "Yamamoto, Eduardo Akio"]
[Black "Avila Torres, Pedro"]
[Result "0-1"]
[ECO "B23"]
[PlyCount "72"]
[EventDate "2004.07.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 101 Extra"]
[Source "ChessBase"]
[SourceDate "2004.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2004.09.01"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 a6 4. Nf3 Nf6 5. g3 e6 6. Bg2 Nc6 7. 0-0 Be7 8. h3 Qc7 9. Kh2 b5 10. d3 Rb8 11. Be3 d5 12. e5 Nd7 13. Bg1 f6 14. exf6 Nxf6 15. d4 c4 16. Ne5 0-0 17. Nxc6 Qxc6 18. Re1 Bb4 19. Re3 Bxc3 20. Rxc3 Qe8 21. Re3 Qg6 22. Qe2 Re8 23. Re1 Bd7 24. Re5 h6 25. Bf2 b4 26. g4 b3 27. cxb3 cxb3 28. axb3 Rxb3 29. Qxa6 Rxb2 30. Bg1 Nxg4+ 31. hxg4 Qxg4 32. R5e2 Bb5 33. Qd6 Bxe2 34. Qa3 Qh4+ 35. Bh3 Bf3+ 36. Qxb2 Qxf4# 0-1

[Event "BRA-ch U14"]
[Site "Pocos de Caldas"]
[Date "2004.??.??"]
[Round "3"]
[White "Cruz, Willian"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1-0"]
[ECO "D55"]
[PlyCount "79"]
[EventDate "2004.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. Nf3 0-0 6. e3 b6 7. cxd5 exd5 8. Bd3 Bb7 9. Ne5 Nbd7 10. f4 c5 11. 0-0 h6 12. Bxf6 Nxf6 13. g4 Ne4 14. Nxe4 dxe4 15. Bc4 Bd5 16. Bxd5 Qxd5 17. dxc5 Qxd1 18. Rfxd1 Bxc5 19. Kf2 Rfd8 20. Ke2 f6 21. Nc6 Rdc8 22. Nd4 Bxd4 23. exd4 Rc2+ 24. Rd2 Rac8 25. Rad1 g6 26. f5 gxf5 27. gxf5 Kf7 28. Rxc2 Rxc2+ 29. Rd2 Rc8 30. Ke3 Re8 31. Rc2 Re7 32. Kf4 h5 33. Re2 Rc7 34. Kxe4 Rd7 35. Rc2 Ke7 36. Rc6 Kf7 37. d5 Re7+ 38. Re6 Rc7 39. Rc6 Rd7 40. Rc2 1-0

[Event "BRA-ch U14"]
[Site "Pocos de Caldas"]
[Date "2004.??.??"]
[Round "5"]
[White "Mota, Nataniel Julio Pere"]
[Black "Yamamoto, Eduardo Akio"]
[Result "0-1"]
[ECO "A85"]
[PlyCount "51"]
[EventDate "2004.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 f5 2. c4 Nf6 3. Nc3 e6 4. Bf4 Be7 5. Nf3 0-0 6. e3 d6 7. Bd3 Qe8 8. 0-0 h6 9. h3 Nc6 10. a3 Bd8 11. d5 exd5 12. cxd5 Ne5 13. Bc2 Nfd7 14. Bxe5 Nxe5 15. e4 f4 16. Nd4 f3 17. Nf5 Qg6 18. g3 Qh5 19. h4 g6 20. Qd4 gxf5 21. exf5 Bxf5 22. Bd1 Bd3 23. Re1 Qf5 24. Rxe5 dxe5 25. Qe3 Bxh4 26. Qxh6 0-1

[Event "BRA-ch U14"]
[Site "Pocos de Caldas"]
[Date "2004.??.??"]
[Round "1"]
[White "Yamamoto, Eduardo Akio"]
[Black "Abdalla, Luiz Guilherme"]
[Result "0-1"]
[ECO "B02"]
[PlyCount "70"]
[EventDate "2004.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 d5 3. exd5 Nxd5 4. Nxd5 Qxd5 5. Qf3 c6 6. Qxd5 cxd5 7. Nf3 Nc6 8. Bb5 Bd7 9. c3 e6 10. d4 Bd6 11. Be3 0-0 12. 0-0 a6 13. Bd3 Rfc8 14. Rac1 Na5 15. Nd2 b5 16. Nb3 Nc4 17. Bxc4 bxc4 18. Nd2 Bb5 19. Rfe1 Rab8 20. Rb1 Rb7 21. b3 cxb3 22. Rxb3 Rbc7 23. Rc1 Rc6 24. Nb1 f6 25. Re1 Kf7 26. Bd2 Ba4 27. Rb7+ R8c7 28. Rxc7+ Rxc7 29. Rc1 Rb7 30. Be1 Rb2 31. Nd2 Rxa2 32. Rb1 Bb5 33. Nb3 Bd3 34. Rd1 Bc2 35. Nc1 Ra1 0-1

[Event "BRA-ch U14"]
[Site "Pocos de Caldas"]
[Date "2004.??.??"]
[Round "2"]
[White "Yamamoto, Eduardo Akio"]
[Black "Albuquerque, Ramon"]
[Result "1-0"]
[ECO "B21"]
[PlyCount "71"]
[EventDate "2004.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "BRA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Bc4 Nc6 6. Nf3 d6 7. 0-0 Nf6 8. Qe2 Be7 9. Rd1 e5 10. h3 0-0 11. Bg5 h6 12. Be3 a6 13. Rac1 b5 14. Bb3 Qe8 15. Bd5 Bb7 16. a3 Rc8 17. b4 Nd8 18. Bxb7 Nxb7 19. Rc2 Rc4 20. Nd2 Rc6 21. Rdc1 Qd7 22. Nd5 Rxc2 23. Nxe7+ Qxe7 24. Rxc2 Qd7 25. Qf3 d5 26. exd5 Nxd5 27. Bc5 Nxc5 28. bxc5 Rc8 29. Nb3 Nf6 30. Rd2 Qc6 31. Qd1 Qe6 32. Rd6 Qf5 33. Rxa6 Ne4 34. Qc2 g6 35. c6 Rd8 36. f3 1-0

[Event "Pan American-ch U12"]
[Site "Villa Giardino"]
[Date "2002.05.30"]
[Round "7"]
[White "Martinez Sandoval, David"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1-0"]
[ECO "E17"]
[PlyCount "127"]
[EventDate "2002.05.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. 0-0 0-0 6. b3 b6 7. Bb2 Bb7 8. Nbd2 Nbd7 9. Ne5 c5 10. c4 cxd4 11. Bxd4 Qc7 12. Nxd7 Qxd7 13. Bb2 Rfd8 14. e3 dxc4 15. Nxc4 Bxg2 16. Qxd7 Rxd7 17. Kxg2 Bc5 18. Bxf6 gxf6 19. Rad1 Rad8 20. Rxd7 Rxd7 21. Kf3 b5 22. Na5 Bb6 23. Nc6 Rd2 24. Ra1 Rc2 25. Nb4 Rc3 26. Na6 Kf8 27. b4 Ke7 28. a4 bxa4 29. Rxa4 Rc4 30. Ra1 Kd6 31. b5 e5 32. Rd1+ Ke6 33. Rd2 Rc3 34. Rb2 Kd5 35. Kg4 Ke6 36. h4 f5+ 37. Kh5 Bd8 38. Nb4 f6 39. Nc6 Bb6 40. Ra2 Rb3 41. Nxa7 Bxa7 42. Rxa7 Rxb5 43. Rxh7 Rb2 44. Kg6 Rxf2 45. Rf7 Rg2 46. Rxf6+ Kd5 47. Rxf5 Rxg3+ 48. Rg5 Rxe3 49. h5 Ra3 50. h6 Ra6+ 51. Kh5 Ra2 52. h7 Rh2+ 53. Kg6 Kd4 54. Rh5 Rg2+ 55. Kf7 Rf2+ 56. Ke7 Ra2 57. h8Q Ra7+ 58. Ke6 Ra6+ 59. Kf5 Ra5 60. Rh4+ Kd3 61. Qxe5 Rxe5+ 62. Kxe5 Kc3 63. Rd4 Kb3 64. Kd5 1-0

[Event "Pan American-ch U12"]
[Site "Villa Giardino"]
[Date "2002.05.29"]
[Round "6"]
[White "Yamamoto, Eduardo Akio"]
[Black "Aguirre, Victor Hugo"]
[Result "1/2-1/2"]
[ECO "B25"]
[PlyCount "53"]
[EventDate "2002.05.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 e5 7. Nge2 Nge7 8. 0-0 0-0 9. f4 Nd4 10. fxe5 dxe5 11. Qd2 Be6 12. Rf2 Rb8 13. Raf1 b5 14. Nd1 Qd6 15. Bg5 Nec6 16. Nc1 b4 17. Ne3 a5 18. Nd5 Bxd5 19. exd5 Ne7 20. Bxe7 Qxe7 21. c3 Nb5 22. Ne2 f5 23. c4 Nd4 24. Nxd4 cxd4 25. Re1 Qc5 26. Kh1 Rbe8 27. Rfe2 1/2-1/2

[Event "Pan American-ch U12"]
[Site "Villa Giardino"]
[Date "2002.05.28"]
[Round "5"]
[White "Carlo, Daniel"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1-0"]
[ECO "B02"]
[WhiteElo "2216"]
[PlyCount "87"]
[EventDate "2002.05.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 d5 3. exd5 Nxd5 4. Nge2 e5 5. Nxd5 Qxd5 6. Nc3 Qd8 7. d3 Bb4 8. Bd2 0-0 9. Be2 Be6 10. 0-0 Nd7 11. Kh1 f5 12. f4 exf4 13. Bxf4 g5 14. Bd2 h6 15. Qe1 Qe8 16. Qg3 Bd6 17. Bf4 Bxf4 18. Rxf4 Kh7 19. Rff1 f4 20. Qf3 c6 21. d4 Nf6 22. Rae1 Qf7 23. h3 Rad8 24. Rd1 Nd5 25. Rd2 Ne3 26. Re1 Bf5 27. Bd1 Qg6 28. Qf2 Rf7 29. Na4 Be4 30. Bf3 Bxf3 31. gxf3 b6 32. b3 Rfd7 33. c3 c5 34. Rc1 h5 35. Nb2 cxd4 36. cxd4 a5 37. Nc4 Rxd4 38. Rxd4 Rxd4 39. Nxe3 fxe3 40. Qxe3 Rd3 41. Qe7+ Kh6 42. Qf8+ Qg7 43. Rc6+ Kh7 44. Qf5+ 1-0

[Event "Pan American-ch U12"]
[Site "Villa Giardino"]
[Date "2002.05.28"]
[Round "4"]
[White "Yamamoto, Eduardo Akio"]
[Black "Goiriz, Yahari Damian"]
[Result "1/2-1/2"]
[ECO "B18"]
[PlyCount "101"]
[EventDate "2002.05.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nf6 7. Bd3 Bxd3 8. Qxd3 e6 9. 0-0 Bd6 10. Bg5 Nbd7 11. Ne4 Be7 12. Nxf6+ Bxf6 13. Bxf6 Qxf6 14. Rfe1 0-0-0 15. Qb3 g5 16. c3 g4 17. Nd2 Qf4 18. Rad1 h5 19. Re4 Qg5 20. Nc4 Qd5 21. Rde1 c5 22. Qa4 Kb8 23. Ne5 f5 24. Nxd7+ Qxd7 25. Qxd7 Rxd7 26. Rf4 cxd4 27. cxd4 Re8 28. Kf1 Kc7 29. Ke2 Kd6 30. Kd3 Rc7 31. Rxf5 exf5 32. Rxe8 Rc1 33. Re5 Ra1 34. a3 Rb1 35. Kc2 Rh1 36. Rxf5 Rxh2 37. g3 Ke6 38. Rf4 h4 39. gxh4 g3 40. Kd3 gxf2 41. Ke2 f1Q+ 42. Kxf1 Rxb2 43. Rf2 Rb3 44. Kg2 Rxa3 45. h5 Ra5 46. Re2+ Kf6 47. h6 Rh5 48. Kf3 Rxh6 49. Kg4 Rh7 50. d5 Re7 51. Ra2 1/2-1/2

[Event "Pan American-ch U12"]
[Site "Villa Giardino"]
[Date "2002.05.26"]
[Round "3"]
[White "Cordova, Emilio"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1-0"]
[ECO "D05"]
[PlyCount "153"]
[EventDate "2002.05.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 d5 4. Bd3 Be7 5. 0-0 0-0 6. Re1 b6 7. Nbd2 Bb7 8. b3 Nbd7 9. Bb2 c5 10. Ne5 a6 11. Ndf3 Nxe5 12. Nxe5 cxd4 13. exd4 Rc8 14. Re3 Ne4 15. Rh3 f6 16. Nf3 g5 17. Nd2 Bb4 18. Nxe4 dxe4 19. Bc4 Qe7 20. Qg4 f5 21. Qh5 Bd5 22. Rg3 g4 23. h3 Bd6 24. Rc3 Bxc4 25. bxc4 Bb4 26. Rb3 Rxc4 27. a3 Ba5 28. hxg4 Rxc2 29. gxf5 Rxf5 30. Rg3+ Kh8 31. Qg4 Qf7 32. d5+ e5 33. Rb1 Rh5 34. f4 exf3 35. Rxf3 Qg7 36. Qxg7+ Kxg7 37. Re3 Kg6 38. Rxe5 Rxe5 39. Bxe5 Rd2 40. d6 Kf5 41. Bg3 Kg4 42. Bh2 b5 43. Kh1 Bd8 44. Rb4+ Kf5 45. g4+ Ke6 46. Re4+ Kd7 47. Re3 Rd4 48. Rf3 Rxg4 49. Rf7+ Kc6 50. Rxh7 Ra4 51. Rh3 b4 52. axb4 Rxb4 53. Rd3 Kd7 54. Ra3 a5 55. Kg2 Rb2+ 56. Kh3 Rb5 57. Kg4 Rg5+ 58. Kf3 Rf5+ 59. Ke4 Rh5 60. Bf4 Rb5 61. Rh3 a4 62. Be5 Rb4+ 63. Kf5 Rb1 64. Rh7+ Kc6 65. Ke6 a3 66. Ra7 Rb3 67. Ra8 Bb6 68. Rc8+ Kb5 69. d7 Rd3 70. Rc1 a2 71. Rc2 Ra3 72. Rb2+ Kc6 73. Rxb6+ Kxb6 74. d8Q+ Kb5 75. Qd5+ Ka4 76. Qc4+ Ka5 77. Bc7# 1-0

[Event "Pan American-ch U12"]
[Site "Villa Giardino"]
[Date "2002.05.25"]
[Round "2"]
[White "Yamamoto, Eduardo Akio"]
[Black "Colque, Luis Andre"]
[Result "1-0"]
[ECO "B24"]
[PlyCount "45"]
[EventDate "2002.05.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 e6 4. Bg2 Nf6 5. f4 d5 6. e5 Nd7 7. Nge2 f6 8. exf6 Nxf6 9. 0-0 Bd7 10. Kh1 Be7 11. d4 0-0 12. Be3 cxd4 13. Nxd4 Nxd4 14. Bxd4 Qc7 15. Re1 Rfc8 16. f5 Qc6 17. fxe6 Bxe6 18. Bxf6 Bxf6 19. Rxe6 Qc7 20. Nxd5 Qxc2 21. Nxf6+ gxf6 22. Bxb7 Qxd1+ 23. Rxd1 1-0

[Event "Pan American-ch U12"]
[Site "Villa Giardino"]
[Date "2002.05.24"]
[Round "1"]
[White "Kruger, Eduardo Daniel"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1/2-1/2"]
[ECO "D45"]
[PlyCount "31"]
[EventDate "2002.05.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 088 Extra"]
[Source "ChessBase"]
[SourceDate "2002.07.01"]
[SourceVersion "2"]
[SourceVersionDate "2002.07.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 e6 3. c4 d5 4. cxd5 exd5 5. Nc3 c6 6. e3 Bd6 7. h3 0-0 8. Bd3 Re8 9. 0-0 Nbd7 10. Qc2 Nf8 11. Re1 Qc7 12. a3 a5 13. b3 Bd7 14. Bb2 Rac8 15. Rac1 h6 16. a4 1/2-1/2

[Event "Pan American-ch U10"]
[Site "Bento Goncalves"]
[Date "2000.??.??"]
[Round "6"]
[White "Luna, Jose Manuel"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1/2-1/2"]
[ECO "D53"]
[PlyCount "79"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Be7 5. Bg5 0-0 6. e3 Nc6 7. Bd3 dxc4 8. Bxc4 h6 9. Bxf6 Bxf6 10. 0-0 e5 11. dxe5 Nxe5 12. Nxe5 Bxe5 13. Rc1 Qh4 14. f4 Bxc3 15. Rxc3 c6 16. Qb3 Qe7 17. Kh1 Bf5 18. Rd1 Rad8 19. Rxd8 Qxd8 20. h3 Qb6 21. Kh2 Qxb3 22. Rxb3 b6 23. g4 Be4 24. a4 Rd8 25. Rb4 Bd3 26. b3 c5 27. Rb5 Bxc4 28. bxc4 Rd3 29. a5 Rxe3 30. axb6 axb6 31. Rxb6 Re4 32. f5 Rxc4 33. Rb8+ Kh7 34. Rf8 f6 35. Kg3 Rd4 36. Rc8 c4 37. Kh4 Re4 38. Rc7 Kg8 39. Kh5 Kh7 40. Rc8 1/2-1/2

[Event "Pan American-ch U10"]
[Site "Bento Goncalves"]
[Date "2000.??.??"]
[Round "1"]
[White "Machado, Alexander"]
[Black "Yamamoto, Eduardo Akio"]
[Result "0-1"]
[ECO "A01"]
[PlyCount "114"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. g3 e5 2. Bg2 Nf6 3. b3 d5 4. Bb2 Nc6 5. Nf3 Bd6 6. 0-0 0-0 7. d3 Be6 8. Ng5 Qd7 9. Nxe6 Qxe6 10. e4 dxe4 11. dxe4 Rad8 12. Qc1 Bc5 13. Ba3 Bxa3 14. Nxa3 Nd4 15. Qe3 Ng4 16. Qg5 h6 17. Qh4 Nf6 18. Qh3 Qxh3 19. Bxh3 Nxe4 20. Rad1 Ne2+ 21. Kg2 N4c3 22. Rxd8 Rxd8 23. Bg4 Nd4 24. Re1 f6 25. Bf3 Nxf3 26. Kxf3 Nxa2 27. Nb5 c6 28. Ra1 cxb5 29. Rxa2 a6 30. c4 bxc4 31. bxc4 Rd3+ 32. Ke2 Rd4 33. c5 Rd5 34. c6 bxc6 35. Rxa6 c5 36. Rc6 Kf7 37. Ke3 Kg6 38. h4 Kf5 39. f3 h5 40. Rc7 g5 41. hxg5 Kxg5 42. Kf2 f5 43. Ke3 f4+ 44. gxf4+ exf4+ 45. Ke4 Rd4+ 46. Ke5 Rc4 47. Rg7+ Kh4 48. Kd5 Rc3 49. Ke4 Rc4+ 50. Kd5 Rd4+ 51. Kxc5 Rd3 52. Kc4 Rxf3 53. Kd4 Rg3 54. Rxg3 fxg3 55. Ke3 Kh3 56. Kf3 g2 57. Kf2 Kh2 0-1

[Event "Pan American-ch U10"]
[Site "Bento Goncalves"]
[Date "2000.??.??"]
[Round "3"]
[White "Maidana, Rodrigo"]
[Black "Yamamoto, Eduardo Akio"]
[Result "0-1"]
[ECO "B04"]
[PlyCount "94"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. exd6 cxd6 5. Nf3 Nc6 6. c4 Nb6 7. Nc3 Bf5 8. Bf4 e6 9. d5 Nb4 10. Nd4 Qf6 11. a3 Qxd4 12. Nb5 Qxf4 13. Nc7+ Kd7 14. Nxa8 Nc2+ 15. Ke2 Nxa1 16. Nxb6+ axb6 17. Qxa1 Qxc4+ 18. Kd2 Qc2+ 19. Ke3 Qe4+ 20. Kd2 Qxd5+ 21. Ke3 Be7 22. Qd1 Bg5+ 23. f4 Qe4+ 24. Kd2 Bxf4+ 25. Kc3 Rc8+ 26. Kb3 Qc2+ 27. Qxc2 Bxc2+ 28. Ka2 d5 29. Bb5+ Ke7 30. h3 e5 31. Re1 e4 32. Be2 d4 33. Bh5 g6 34. Bg4 f5 35. Bd1 Bxd1 36. Rxd1 d3 37. Rf1 Be5 38. g4 Rc2 39. Kb1 Rxb2+ 40. Kc1 f4 41. h4 e3 42. Re1 d2+ 43. Kd1 dxe1Q+ 44. Kxe1 f3 45. Kf1 Bg3 46. Kg1 e2 47. Kh1 e1Q# 0-1

[Event "Pan American-ch U10"]
[Site "Bento Goncalves"]
[Date "2000.??.??"]
[Round "5"]
[White "Pena Hernandez, Alfredo A"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1-0"]
[ECO "D03"]
[PlyCount "109"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 e6 3. Bg5 Be7 4. e3 d5 5. Nf3 0-0 6. g3 h6 7. Bxf6 Bxf6 8. Bg2 Nc6 9. 0-0 Bd7 10. Qd2 Ne7 11. Ne2 Ng6 12. Rac1 Rc8 13. Rfe1 c5 14. c3 c4 15. Kh1 b5 16. Rcd1 Qc7 17. Nfg1 Rfd8 18. Qc2 Bc6 19. f4 Ne7 20. Nc1 Nf5 21. Bh3 Nd6 22. Nf3 Rb8 23. a3 Ne4 24. Kg1 a5 25. Ne5 Bxe5 26. fxe5 b4 27. axb4 axb4 28. Ne2 b3 29. Qb1 Qa5 30. Bg2 Ng5 31. Qc1 Ra8 32. Qd2 Qc7 33. Rb1 Ra7 34. Rec1 Rda8 35. Nf4 Qe7 36. Rf1 Kh8 37. Qe2 Rf8 38. Qf2 Ne4 39. Bxe4 dxe4 40. Ng6+ fxg6 41. Qxf8+ Qxf8 42. Rxf8+ Kh7 43. Rff1 Ra2 44. Rf7 Bd5 45. g4 g5 46. Rf2 Kg6 47. Kg2 Kh7 48. Kg3 Kg6 49. h4 Kh7 50. Re1 Kg6 51. Rb1 Kh7 52. Rf8 g6 53. hxg5 hxg5 54. Rh1+ Kg7 55. Rhh8 1-0

[Event "Pan American-ch U10"]
[Site "Bento Goncalves"]
[Date "2000.??.??"]
[Round "7"]
[White "Yamamoto, Eduardo Akio"]
[Black "Chung, Nicolas"]
[Result "1/2-1/2"]
[ECO "C17"]
[PlyCount "60"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bb5+ Nc6 6. Be3 Bxc3+ 7. bxc3 cxd4 8. Bxc6+ bxc6 9. cxd4 Ne7 10. Ne2 0-0 11. 0-0 Nf5 12. Qd3 Qc7 13. Ng3 Nxg3 14. hxg3 Qa5 15. Rfd1 Ba6 16. Qd2 Qxd2 17. Bxd2 Bc4 18. a3 Rab8 19. Bb4 Rfc8 20. Rab1 Rb5 21. Bd6 a6 22. Rb4 a5 23. Rxb5 Bxb5 24. f4 Rd8 25. Bc7 Ra8 26. Kf2 Kf8 27. Bd6+ Ke8 28. Ke3 Kd7 29. Rh1 h6 30. c3 a4 1/2-1/2

[Event "Pan American-ch U10"]
[Site "Bento Goncalves"]
[Date "2000.??.??"]
[Round "4"]
[White "Yamamoto, Eduardo Akio"]
[Black "Ikeda, Victor Jr"]
[Result "1-0"]
[ECO "C54"]
[PlyCount "99"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. d3 0-0 6. c3 d5 7. exd5 Nxd5 8. Re1 Re8 9. Nbd2 f5 10. Nb3 Bb6 11. Be3 Kh8 12. Bxd5 Qxd5 13. d4 f4 14. Bxf4 e4 15. Nfd2 Bf5 16. f3 Re7 17. fxe4 Bxe4 18. Nxe4 Rxe4 19. Rxe4 Qxe4 20. Bg3 Re8 21. Qe1 Qxe1+ 22. Rxe1 Rxe1+ 23. Bxe1 Ne7 24. c4 c6 25. Ba5 Bxa5 26. Nxa5 b6 27. Nb3 g5 28. Kf2 Kg7 29. Kf3 Kf6 30. Ke4 Ke6 31. Nd2 Nf5 32. Nf3 h6 33. c5 b5 34. Ne5 Ne7 35. Nxc6 Nxc6 36. d5+ Kd7 37. dxc6+ Kxc6 38. Kd4 a5 39. g4 a4 40. b3 a3 41. b4 Kc7 42. Kd5 Kd7 43. c6+ Kc7 44. Kc5 Kb8 45. Kb6 h5 46. gxh5 g4 47. h6 g3 48. hxg3 Ka8 49. h7 Kb8 50. h8Q# 1-0

[Event "Pan American-ch U10"]
[Site "Bento Goncalves"]
[Date "2000.??.??"]
[Round "2"]
[White "Yamamoto, Eduardo Akio"]
[Black "Panizza, Cristian"]
[Result "0-1"]
[ECO "B18"]
[PlyCount "50"]
[EventDate "2000.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. Bc4 Ngf6 8. 0-0 e6 9. Bf4 Be7 10. c3 0-0 11. Ne5 Nxe5 12. Bxe5 Nd7 13. Bf4 Nb6 14. Bb3 a5 15. a4 Bh4 16. Qd2 Nd5 17. Bxd5 Qxd5 18. Rfe1 Rfd8 19. Re2 Rd7 20. Rd1 Rad8 21. Nf1 Qa2 22. Ng3 Qxa4 23. Ne4 Be7 24. Bg5 Bxg5 25. Qxg5 Qxd1+ 0-1

[Event "Pan American-ch U10"]
[Site "Matinhos"]
[Date "1999.??.??"]
[Round "6"]
[White "Bachmann, Axel"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1/2-1/2"]
[ECO "B02"]
[PlyCount "44"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 d5 3. exd5 Nxd5 4. d3 Nxc3 5. bxc3 e5 6. Nf3 Nc6 7. g3 Bc5 8. Bg2 e4 9. dxe4 Qxd1+ 10. Kxd1 Bxf2 11. Bf4 Bb6 12. Ne5 Nxe5 13. Bxe5 f6 14. Bd4 Bg4+ 15. Kc1 0-0-0 16. h3 Be6 17. Rd1 Rhe8 18. Kb2 Re7 19. Bxb6 axb6 20. Rd4 Red7 21. Rad1 c6 22. g4 c5 1/2-1/2

[Event "Pan American-ch U10"]
[Site "Matinhos"]
[Date "1999.??.??"]
[Round "4"]
[White "Centeno Perez, Bruno Roberto"]
[Black "Yamamoto, Eduardo Akio"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "78"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. d3 Nc6 5. Be2 e6 6. Be3 Be7 7. 0-0 0-0 8. Nbd2 Bd7 9. d4 cxd4 10. cxd4 Rc8 11. Bd3 Nb4 12. Bb1 Bb5 13. Re1 Nd3 14. Bxd3 Bxd3 15. e5 dxe5 16. dxe5 Nd5 17. Qb3 Nxe3 18. Rxe3 Ba6 19. Nf1 Qd5 20. Qa4 Qc4 21. Qd7 Qc7 22. Qxc7 Rxc7 23. b3 Rc2 24. Nd4 Rc5 25. Nd2 Bg5 26. Nxe6 fxe6 27. Ne4 Bxe3 28. fxe3 Rxe5 29. Nf2 Rxe3 30. Rd1 Re2 31. Ng4 h5 32. Nf6+ Rxf6 33. Rd8+ Kh7 34. h3 Rxa2 35. Rd4 Rf1+ 36. Kh2 Rff2 37. Re4 Rxg2+ 38. Kh1 Rh2+ 39. Kg1 Rag2# 0-1

[Event "Pan American-ch U10"]
[Site "Matinhos"]
[Date "1999.??.??"]
[Round "2"]
[White "Chiapero, Guillermo"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1-0"]
[ECO "E51"]
[PlyCount "55"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 Nc6 4. c4 d5 5. Nc3 Bb4 6. Bd2 0-0 7. a3 Bxc3 8. Bxc3 Bd7 9. Qb3 Rb8 10. Bd3 Re8 11. 0-0 Qe7 12. Rac1 a6 13. a4 a5 14. Rc2 Nb4 15. Bxb4 Qxb4 16. Qxb4 axb4 17. b3 Bc6 18. Ne5 Rbc8 19. Nxc6 bxc6 20. Rfc1 Re7 21. cxd5 cxd5 22. Ba6 Ra8 23. Rxc7 Rxc7 24. Rxc7 h6 25. Rc8+ Rxc8 26. Bxc8 Ne4 27. a5 Nd6 28. Bd7 1-0

[Event "Brasileiro U18"]
[Site "Brazil"]
[Date "1999.??.??"]
[Round "?"]
[White "Terao, Rodrigo Akira"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1/2-1/2"]
[ECO "B80"]
[PlyCount "63"]
[EventDate "1999.??.??"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 h6 7. Bh4 Be7 8. f4 Bd7 9. Qf3 Nc6 10. 0-0-0 0-0 11. g4 Qb6 12. Ndb5 Ne8 13. Bxe7 Nxe7 14. Nxd6 Nxd6 15. Qd3 Ng6 16. Qxd6 Qxd6 17. Rxd6 Bc6 18. f5 exf5 19. gxf5 Nh4 20. Bb5 Nxf5 21. Rd3 Bxb5 22. Nxb5 Nh4 23. Rd7 a6 24. Nc3 b5 25. a4 bxa4 26. Nxa4 Rfd8 27. Rhd1 Rxd7 28. Rxd7 Nf3 29. h3 Ng5 30. e5 Nxh3 31. c4 Nf4 32. Nb6 1/2-1/2

[Event "Pan American-ch U10"]
[Site "Matinhos"]
[Date "1999.??.??"]
[Round "5"]
[White "Yamamoto, Eduardo Akio"]
[Black "Ascoy Contreras, Martin"]
[Result "1/2-1/2"]
[ECO "B71"]
[PlyCount "83"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4 Nbd7 7. Be3 Bg7 8. Be2 0-0 9. Qd2 Nc5 10. Bd3 Qb6 11. Rb1 Ng4 12. Nd5 Qd8 13. h3 Nxe3 14. Qxe3 Nxd3+ 15. Qxd3 e6 16. Nc3 a6 17. Nf3 Qf6 18. Qxd6 Rd8 19. Qe5 Qxe5 20. fxe5 b5 21. Kf2 Bb7 22. a3 Rac8 23. Rhd1 a5 24. Rxd8+ Rxd8 25. Rd1 Rxd1 26. Nxd1 Bxe4 27. c3 Bxf3 28. Kxf3 Bxe5 29. Ne3 b4 30. axb4 axb4 31. cxb4 Bxb2 32. Nc4 Bc3 33. b5 Kf8 34. b6 Bd4 35. b7 Ba7 36. Na5 Ke8 37. Nc6 Kd7 38. b8Q Bxb8 39. Nxb8+ Kd6 40. Na6 f5 41. Nb4 g5 42. g4 1/2-1/2

[Event "Brasileiro U18"]
[Site "Brazil"]
[Date "1999.??.??"]
[Round "?"]
[White "Yamamoto, Eduardo Akio"]
[Black "Biasutti, Andre"]
[Result "1-0"]
[ECO "C42"]
[PlyCount "21"]
[EventDate "1999.??.??"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Bd6 3. Bc4 Nf6 4. d3 0-0 5. 0-0 Ng4 6. h3 Nf6 7. Bg5 Nh5 8. Bxd8 Rxd8 9. Nbd2 c5 10. c3 Nf4 11. Kh2 1-0

[Event "Brasileiro U18"]
[Site "Brazil"]
[Date "1999.??.??"]
[Round "?"]
[White "Yamamoto, Eduardo Akio"]
[Black "Diamant, Andre"]
[Result "0-1"]
[ECO "B01"]
[PlyCount "118"]
[EventDate "1999.??.??"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "BRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 c6 5. Nf3 Bg4 6. Be2 Bxf3 7. Bxf3 Nf6 8. Bf4 e6 9. 0-0 Be7 10. Qd3 Nbd7 11. Ne4 Nxe4 12. Bxe4 Nf6 13. Bf3 0-0 14. c4 Rad8 15. Rad1 Qxa2 16. b3 Qa5 17. Ra1 Qb6 18. Be3 Qc7 19. Rxa7 e5 20. d5 cxd5 21. cxd5 Rfe8 22. Qb5 Qd7 23. Rxb7 Qxb5 24. Rxb5 e4 25. Be2 Nxd5 26. Rd1 Nc3 27. Rxd8 Rxd8 28. Kf1 Nxb5 29. Bxb5 Rc8 30. Bc4 Bc5 31. Bd2 Ra8 32. b4 Bxb4 33. Bxb4 Ra4 34. Bd5 Rxb4 35. Ke2 Kf8 36. Ke3 f5 37. f3 exf3 38. Bxf3 Ke7 39. g4 fxg4 40. Be4 h5 41. Bg6 h4 42. Be4 Kf6 43. Kf4 g5+ 44. Ke3 Ke5 45. Bg6 Rb3+ 46. Bd3 Rxd3+ 47. Kxd3 Kf4 48. Ke2 g3 49. Kf1 gxh2 50. Kg2 h1Q+ 51. Kxh1 g4 52. Kg2 g3 53. Kg1 Kf3 54. Kh1 g2+ 55. Kg1 h3 56. Kh2 Kf2 57. Kxh3 g1Q 58. Kh4 Qg6 59. Kh3 Qg3# 0-1

[Event "Pan American-ch U10"]
[Site "Matinhos"]
[Date "1999.??.??"]
[Round "3"]
[White "Yamamoto, Eduardo Akio"]
[Black "Gomes, Jorge2222"]
[Result "1-0"]
[ECO "C55"]
[PlyCount "101"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 d5 5. exd5 Na5 6. Bb5+ Bd7 7. Bxd7+ Qxd7 8. Nxe5 Qxd5 9. Nf3 0-0-0 10. 0-0 Qh5 11. Bf4 Nc4 12. Qe1 Bc5 13. dxc4 Ng4 14. h3 Bxf2+ 15. Rxf2 Nxf2 16. Qxf2 Rd1+ 17. Kh2 Re8 18. Qh4 Qc5 19. Be5 Rxe5 20. Nxe5 Qxe5+ 21. Qg3 Qd4 22. Qg4+ Qxg4 23. hxg4 Re1 24. Kg3 Re3+ 25. Kf2 Re4 26. Nd2 Rxg4 27. Rh1 Rf4+ 28. Ke3 g5 29. Rxh7 Rf5 30. Ne4 g4 31. Rh4 Re5 32. Kf4 Ra5 33. a3 Ra6 34. Rh8+ Kd7 35. Nc5+ Kc6 36. Nxa6 bxa6 37. b4 a5 38. Kxg4 axb4 39. axb4 Kd6 40. Kf5 c5 41. b5 Kc7 42. Rh7 Kb6 43. Rxf7 a6 44. Rf6+ Ka5 45. Rxa6+ Kb4 46. b6 Kxc4 47. b7 Kc3 48. b8Q Kxc2 49. Ra2+ Kd3 50. Qb3+ Kd4 51. Rd2# 1-0

[Event "Pan American-ch U10"]
[Site "Matinhos"]
[Date "1999.??.??"]
[Round "7"]
[White "Yamamoto, Eduardo Akio"]
[Black "Vera, I Jorge"]
[Result "1/2-1/2"]
[ECO "B71"]
[PlyCount "80"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4 Bg4 7. Be2 Bxe2 8. Qxe2 Bg7 9. Be3 Nc6 10. 0-0-0 Nxd4 11. Bxd4 Qa5 12. Qb5+ Qxb5 13. Nxb5 0-0 14. e5 dxe5 15. Bxe5 a6 16. Nc3 Rfd8 17. h3 Rac8 18. Rxd8+ Rxd8 19. Rd1 Rxd1+ 20. Kxd1 Nh5 21. Bxg7 Kxg7 22. Ne2 Kf6 23. Kd2 Ke6 24. Kd3 Kd6 25. Kd4 f6 26. Ke4 Ng7 27. Nd4 e6 28. g4 h5 29. c4 hxg4 30. hxg4 f5+ 31. gxf5 gxf5+ 32. Ke3 e5 33. fxe5+ Kxe5 34. Nf3+ Kd6 35. b4 Ne6 36. Kd3 b6 37. Nd4 Nxd4 38. Kxd4 a5 39. a3 a4 40. Ke3 Ke5 1/2-1/2

[Event "Pan American-ch U10"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "4"]
[White "Bazan, Francisco"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1-0"]
[ECO "C56"]
[PlyCount "47"]
[EventDate "1998.05.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 Nc6 2. e4 e5 3. d4 exd4 4. Bc4 Nf6 5. 0-0 Bc5 6. e5 Nh5 7. Ng5 g6 8. Nxf7 Qe7 9. Nxh8 Nd8 10. Nxg6 hxg6 11. Qg4 Qg7 12. Re1 c6 13. Bg5 d5 14. exd6+ Kf8 15. Qf3+ Nf7 16. Be7+ Kg8 17. Bxf7+ Qxf7 18. Qxf7+ Kxf7 19. c3 dxc3 20. Nxc3 Bd7 21. Ne4 Bb6 22. Ng5+ Kg7 23. Ne6+ Bxe6 24. Rxe6 1-0

[Event "Pan American-ch U10"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "1"]
[White "Gonzalez, Roy"]
[Black "Yamamoto, Eduardo Akio"]
[Result "1-0"]
[ECO "B30"]
[PlyCount "51"]
[EventDate "1998.05.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 bxc6 5. 0-0 Nf6 6. Nc3 d5 7. exd5 cxd5 8. d4 e6 9. h3 Be7 10. Bg5 Qc7 11. dxc5 Qxc5 12. Bxf6 Bxf6 13. Qd3 0-0 14. Rab1 Bd7 15. Qe3 d4 16. Ne4 Qxc2 17. Nxf6+ gxf6 18. Qxd4 Bb5 19. Rfc1 Qg6 20. Nh4 Qg7 21. Rc3 e5 22. Qe4 Kh8 23. Nf5 Qg5 24. Rg3 Qd2 25. Qh4 Qc2 26. Qxf6# 1-0

[Event "Pan American-ch U10"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "5"]
[White "Yamamoto, Eduardo Akio"]
[Black "Centeno Perez, Bruno Roberto"]
[Result "0-1"]
[ECO "C42"]
[PlyCount "58"]
[EventDate "1998.05.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d3 Nf6 6. Bg5 Be7 7. Nc3 0-0 8. Be2 h6 9. Bh4 Be6 10. 0-0 c5 11. Qd2 d5 12. Ne5 a6 13. a4 d4 14. Nd1 Nfd7 15. Bxe7 Qxe7 16. Nxd7 Nxd7 17. Bf3 Qh4 18. Bxb7 Rab8 19. Bxa6 Rb6 20. Bc4 Ne5 21. Bxe6 fxe6 22. Re1 Ng4 23. f3 Qxh2+ 24. Kf1 Qh1+ 25. Ke2 Qxg2+ 26. Nf2 Qxf2+ 27. Kd1 Ne3+ 28. Kc1 Qxd2+ 29. Kxd2 Rxf3 0-1

[Event "Pan American-ch U10"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "2"]
[White "Yamamoto, Eduardo Akio"]
[Black "Lopez, Humberto"]
[Result "0-1"]
[ECO "B02"]
[PlyCount "79"]
[EventDate "1998.05.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. Nf3 d6 5. Nc3 Bg4 6. h3 Bh5 7. g4 Bg6 8. Qb3 Nc6 9. exd6 cxd6 10. Bg2 e6 11. 0-0 Be7 12. d4 Bd3 13. Rd1 Bxc4 14. Qc2 0-0 15. b3 Bd5 16. Nxd5 Nxd5 17. Bb2 Nf4 18. Bf1 Rc8 19. Qd2 Nd5 20. Bc4 Nf6 21. d5 exd5 22. Bxd5 Nxd5 23. Qxd5 Qc7 24. Nd4 Nxd4 25. Qxd4 Bf6 26. Qd2 Bxb2 27. Qxb2 Rfd8 28. Rac1 Qd7 29. Rxc8 Rxc8 30. Rd2 Qc6 31. Qd4 Qf3 32. Rd1 Qxh3 33. Qxd6 Qxg4+ 34. Kf1 h6 35. Qe7 Qxd1+ 36. Kg2 Qg4+ 37. Kh2 Rc3 38. f3 Rc2+ 39. Qe2 Rxe2+ 40. Kh1 0-1

[Event "Pan American-ch U10"]
[Site "Florianopolis"]
[Date "1998.??.??"]
[Round "3"]
[White "Yamamoto, Eduardo Akio"]
[Black "Vera Leguizamo, Vitor"]
[Result "1-0"]
[ECO "C54"]
[PlyCount "61"]
[EventDate "1998.05.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BRA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 Ng4 6. d4 exd4 7. cxd4 Bb4+ 8. Bd2 Bxd2+ 9. Nbxd2 0-0 10. h3 Nf6 11. 0-0 d5 12. exd5 Nxd5 13. Re1 Qf6 14. Bxd5 Nxd4 15. Nxd4 Qxd4 16. Nf3 Qxb2 17. Qb3 Qxb3 18. Bxb3 Kh8 19. Re7 Be6 20. Bxe6 fxe6 21. Rxe6 Rf7 22. Ne5 Rff8 23. Re1 g6 24. Re7 Rac8 25. Rd1 Rfd8 26. Nf7+ Kg8 27. Rxd8+ Rxd8 28. Nxd8 c5 29. Rxb7 a5 30. Kf1 Kf8 31. Ne6+ 1-0

