[Event "JPN-ch"]
[Site "Tokyo"]
[Date "2022.08.21"]
[Round "6"]
[White "Ogasa, Seiichi"]
[Black "Gishi, Takeshi"]
[Result "1/2-1/2"]
[ECO "A09"]
[WhiteElo "1654"]
[BlackElo "1995"]
[PlyCount "40"]
[EventDate "2022.08.20"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. g3 e5 2. Bg2 d5 3. c4 d4 4. d3 Nc6 5. Nf3 Bb4+ 6. Nfd2 a5 7. 0-0 Nf6 8. a3 Be7 9. Qc2 0-0 10. Re1 Bf5 11. Qb3 Qc8 12. Nf3 h6 13. Nbd2 a4 14. Qc2 Re8 15. b4 axb3 16. Qxb3 Bf8 17. Nh4 Bh7 18. Bb2 Ra6 19. Reb1 g5 20. Nhf3 Rb6 1/2-1/2

[Event "JPN-ch"]
[Site "Tokyo"]
[Date "2022.08.21"]
[Round "5"]
[White "Robertson, Phil"]
[Black "Ogasa, Seiichi"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "1727"]
[BlackElo "1654"]
[PlyCount "142"]
[EventDate "2022.08.20"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. e4 c5 2. d4 e6 3. Nf3 cxd4 4. c3 d3 5. Bxd3 Nc6 6. 0-0 d6 7. Nbd2 Nf6 8. Nb3 Be7 9. Bg5 0-0 10. Re1 Qc7 11. Bc2 Rd8 12. Nbd4 Ne5 13. Qe2 Ng6 14. Rad1 a6 15. e5 dxe5 16. Nxe5 Nxe5 17. Qxe5 Qxe5 18. Rxe5 h6 19. Bh4 Bd7 20. Nf5 exf5 21. Rxe7 Bc6 22. Bxf6 gxf6 23. Ree1 Be4 24. Bb3 b5 25. f3 Bd3 26. Re7 Bc4 27. Rxd8+ Rxd8 28. Bxc4 bxc4 29. Rc7 Rd1+ 30. Kf2 Rd2+ 31. Ke3 Rxb2 32. a4 Rxg2 33. h4 Rc2 34. Rxc4 Ra2 35. Kf4 Kg7 36. Kxf5 Rf2 37. Kf4 Ra2 38. Rb4 a5 39. Rd4 Ra3 40. Rc4 Kg6 41. Ke4 Ra1 42. Kd3 f5 43. Rf4 Kf6 44. Kc2 Ke5 45. Rd4 f4 46. Re4+ Kf5 47. Rc4 Rf1 48. Rc5+ Kg6 49. Rxa5 Rxf3 50. h5+ Kf6 51. Rb5 Rf1 52. a5 Ra1 53. Rb6+ Kg7 54. Rb5 f3 55. Rf5 f2 56. Rxf2 Ra2+ 57. Kb3 Rxf2 58. Kb4 Kf8 59. a6 Ke7 60. Kb5 Kd7 61. Kb6 Rb2+ 62. Kc5 Kc7 63. Kd5 Ra2 64. Ke5 Rxa6 65. c4 Rc6 66. Kd5 Rf6 67. Ke5 Rf1 68. c5 f5 69. Kf6 f4 70. Kg6 f3 71. Kxh6 f2 0-1

[Event "JPN-ch"]
[Site "Tokyo"]
[Date "2022.08.20"]
[Round "1"]
[White "Ogasa, Seiichi"]
[Black "Higashishiba, Teruomi"]
[Result "0-1"]
[ECO "A09"]
[WhiteElo "1654"]
[BlackElo "1972"]
[PlyCount "95"]
[EventDate "2022.08.20"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. g3 e5 2. Bg2 d5 3. c4 d4 4. d3 Nc6 5. Nf3 Bb4+ 6. Nfd2 Nf6 7. 0-0 0-0 8. a3 Be7 9. b4 a5 10. b5 Nb8 11. Nf3 Nbd7 12. e3 dxe3 13. Bxe3 Ng4 14. Bd2 Bc5 15. Bc3 Re8 16. Nbd2 Ngf6 17. Re1 Bd6 18. Nf1 e4 19. Nh4 exd3 20. Qxd3 Rxe1 21. Rxe1 Nc5 22. Qd2 Be6 23. Qc2 Qd7 24. Ne3 Ng4 25. Nef5 Bf8 26. Rd1 Qe8 27. h3 Nf6 28. Nh6+ Kh8 29. Bxf6 gxf6 30. N4f5 Rd8 31. Re1 Qd7 32. Bd5 c6 33. bxc6 bxc6 34. Be4 Nxe4 35. Qxe4 Qd2 36. Re3 Qc1+ 37. Kg2 Qxc4 38. Qxc4 Bxc4 39. Rc3 Bd5+ 40. Kg1 Re8 41. Kf1 Rb8 42. Ng4 Rb1+ 43. Ke2 Bg7 44. Nge3 Rb3 45. Nxd5 Rb2+ 46. Ke3 h5 47. Rxc6 Rb5 48. Rc8+ 0-1

[Event "Tokyo op"]
[Site "Tokyo"]
[Date "2022.07.15"]
[Round "1"]
[White "Ogasa, Seiichi"]
[Black "Kojima, Shinya"]
[Result "0-1"]
[ECO "A10"]
[WhiteElo "1654"]
[BlackElo "2346"]
[PlyCount "62"]
[EventDate "2022.07.15"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "JPN"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. g3 d5 2. Bg2 g6 3. c4 dxc4 4. Qa4+ Nd7 5. Nf3 Bg7 6. Qxc4 Ngf6 7. 0-0 0-0 8. d3 c5 9. Nbd2 b6 10. Ne1 Ne5 11. Qc2 Nd5 12. a3 Nc6 13. Ne4 Nd4 14. Qd1 Bg4 15. f3 Bd7 16. Bd2 Nf5 17. Nc2 Ba4 18. Qc1 Bxc2 19. Qxc2 Nde3 20. Qc1 Nxf1 21. Kxf1 Rc8 22. Bh3 e6 23. Bg5 Qd4 24. Rb1 c4 25. Qd2 cxd3 26. exd3 h6 27. Bxf5 exf5 28. Be3 Qd5 29. Nf2 Qxf3 30. Bxh6 Bxh6 31. Qxh6 Rc2 0-1

[Event "Tokyo Japan op"]
[Site "Tokyo"]
[Date "2021.11.20"]
[Round "1"]
[White "Tran, Thanh Tu"]
[Black "Ogasa, Seiichi"]
[Result "1-0"]
[ECO "A02"]
[WhiteElo "2374"]
[BlackElo "1656"]
[PlyCount "67"]
[EventDate "2021.11.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "JPN"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e3 Nf6 2. f4 g6 3. Nf3 c5 4. Be2 Bg7 5. 0-0 0-0 6. d3 Nc6 7. Qe1 d6 8. Nc3 a6 9. a4 Rb8 10. Qh4 Nb4 11. Bd1 b5 12. axb5 axb5 13. e4 Bd7 14. f5 Re8 15. Bh6 Bh8 16. Bd2 Qb6 17. Ng5 Bg7 18. fxg6 hxg6 19. e5 dxe5 20. Nce4 c4+ 21. Kh1 Nbd5 22. Be2 Rec8 23. Nxf6+ Nxf6 24. Bb4 Qd4 25. Qxd4 exd4 26. Bxe7 Re8 27. Bxf6 Rxe2 28. Bxg7 Kxg7 29. Rxf7+ Kh6 30. h4 Kh5 31. Rxd7 Kxh4 32. Ne4 Rxc2 33. Rf1 g5 34. Rh7+ 1-0

[Event "Tokyo-ch"]
[Site "Tokyo"]
[Date "2021.03.21"]
[Round "6"]
[White "Ogasa, Seiichi"]
[Black "Nakamura, Naohiro"]
[Result "0-1"]
[ECO "A37"]
[WhiteElo "1656"]
[BlackElo "2111"]
[PlyCount "82"]
[EventDate "2021.03.20"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. g3 g6 2. Bg2 Bg7 3. c4 c5 4. Nc3 Nc6 5. Nf3 e5 6. d3 Nge7 7. 0-0 d6 8. Bg5 h6 9. Bd2 0-0 10. e4 f5 11. h3 Be6 12. Nd5 Qd7 13. Kh2 Rab8 14. Rb1 b5 15. b3 Kh7 16. Qe2 b4 17. Ng1 Nd4 18. Qd1 Nec6 19. f4 Rbe8 20. Nf3 Nxf3+ 21. Bxf3 fxe4 22. dxe4 Bxh3 23. Rg1 Be6 24. g4 exf4 25. g5 Nd4 26. gxh6 Be5 27. Qf1 Kxh6 28. Qf2 Rh8 29. Rh1 Kg7+ 30. Kg2 Bh3+ 31. Kg1 Nxf3+ 32. Qxf3 Bg4 33. Qf2 Rxh1+ 34. Kxh1 Rh8+ 35. Kg1 g5 36. a3 Qf7 37. axb4 Bd4 38. Bc3 Bxc3 39. Nxc3 Qh5 40. Kf1 Qh1+ 41. Qg1 Qf3+ 0-1

[Event "JPN-ch"]
[Site "Tokyo"]
[Date "2020.11.03"]
[Round "7"]
[White "Ogasa, Seiichi"]
[Black "Saito, Hiromasa"]
[Result "0-1"]
[ECO "A09"]
[WhiteElo "1636"]
[BlackElo "1818"]
[PlyCount "66"]
[EventDate "2020.10.31"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "JPN"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. g3 d5 2. Bg2 e5 3. c4 d4 4. d3 c5 5. Nf3 Nc6 6. 0-0 Nf6 7. e3 Be7 8. exd4 exd4 9. Re1 0-0 10. Na3 a6 11. Nc2 h6 12. b3 Rb8 13. Ba3 Qc7 14. Qd2 b5 15. cxb5 Rxb5 16. Rac1 Rd8 17. Bb2 Qd6 18. Na3 Rb8 19. Nc4 Qc7 20. Ba3 Nb4 21. Bxb4 Rxb4 22. Nce5 a5 23. Qb2 Be6 24. Nd2 Bd5 25. Ndc4 Bxg2 26. Kxg2 a4 27. Nd2 axb3 28. Nxb3 Nd5 29. Kg1 Bf6 30. Nf3 Nc3 31. Qa3 Qc6 32. Nfd2 Ra8 33. Nxd4 Bxd4 0-1

[Event "JPN-ch"]
[Site "Tokyo"]
[Date "2020.11.02"]
[Round "5"]
[White "Onishi, Kosuke"]
[Black "Ogasa, Seiichi"]
[Result "1/2-1/2"]
[ECO "C11"]
[WhiteElo "1749"]
[BlackElo "1636"]
[PlyCount "122"]
[EventDate "2020.10.31"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "JPN"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 a6 8. Qd2 b5 9. Ne2 Be7 10. c3 Qc7 11. g3 Nb6 12. dxc5 Nc4 13. Qc1 b4 14. Bd4 Qa5 15. Nd2 Nxd2 16. Qxd2 Bxc5 17. Bxc5 Qxc5 18. Rc1 Bd7 19. Nd4 bxc3 20. bxc3 0-0 21. Bd3 Rfc8 22. Ke2 g6 23. Nb3 Qa3 24. h4 Ne7 25. g4 Bb5 26. h5 Qa4 27. Nd4 Bxd3+ 28. Kxd3 Kg7 29. hxg6 hxg6 30. f5 Qc4+ 31. Ke3 exf5 32. gxf5 Nxf5+ 33. Nxf5+ gxf5 34. Qh2 Qc5+ 35. Kd2 Kf8 36. Qh8+ Ke7 37. Qf6+ Kd7 38. Qxf7+ Kc6 39. Rh6+ Kb5 40. Qb7+ Ka5 41. Qb4+ Qxb4 42. cxb4+ Kxb4 43. Rb6+ Ka5 44. Rxc8 Rxc8 45. Rf6 f4 46. Rxf4 Re8 47. Rf5 Re6 48. Kd3 Kb5 49. Kd4 Kc6 50. Rf6 Rxf6 51. exf6 Kd6 52. f7 Ke7 53. Kxd5 Kxf7 54. Kc6 Ke7 55. Kb6 Kd7 56. Kxa6 Kc7 57. Ka7 Kc8 58. a4 Kc7 59. a5 Kc8 60. a6 Kc7 61. Ka8 Kc8 1/2-1/2

[Event "JPN-ch"]
[Site "Tokyo"]
[Date "2020.11.01"]
[Round "3"]
[White "Bibby, Simon"]
[Black "Ogasa, Seiichi"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "2147"]
[BlackElo "1636"]
[PlyCount "71"]
[EventDate "2020.10.31"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "JPN"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Qe2 dxe4 4. dxe4 e5 5. Nf3 Nc6 6. c3 Nf6 7. Qc2 Bc5 8. b4 Bd6 9. Be2 0-0 10. Bg5 Qe7 11. Nbd2 Nd8 12. Bc4 Be6 13. 0-0 Bxc4 14. Nxc4 Ne6 15. Bh4 Nf4 16. Rad1 Ng6 17. Bg5 h6 18. Bxf6 Qxf6 19. Nxd6 cxd6 20. Nd2 Rac8 21. g3 Qg5 22. Kh1 h5 23. Qd3 h4 24. Nc4 Rfd8 25. Ne3 h3 26. c4 Qh5 27. f4 exf4 28. gxf4 Qh4 29. Nd5 b5 30. cxb5 Qg4 31. Rg1 Qh5 32. Rg3 Rc4 33. Rdg1 Rdc8 34. Rxh3 Nxf4 35. Nf6+ Kf8 36. Qxd6# 1-0

[Event "JPN-ch"]
[Site "Tokyo"]
[Date "2020.11.01"]
[Round "4"]
[White "Ogasa, Seiichi"]
[Black "Scott, Tyler"]
[Result "0-1"]
[ECO "E01"]
[WhiteElo "1636"]
[BlackElo "1915"]
[PlyCount "164"]
[EventDate "2020.10.31"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "JPN"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. g3 Nf6 2. Bg2 d5 3. c4 c6 4. Nc3 e6 5. Nf3 Nbd7 6. b3 Bd6 7. 0-0 0-0 8. d4 Qe7 9. Bb2 Ne4 10. Nxe4 dxe4 11. Ne5 f5 12. Qd2 Nxe5 13. dxe5 Bc7 14. Rad1 Rd8 15. Qc1 Bd7 16. Ba3 c5 17. Qc3 Bc6 18. b4 cxb4 19. Bxb4 Qf7 20. Bd6 Rac8 21. f3 exf3 22. Bxf3 Ba4 23. Rd2 Bb6+ 24. Kg2 Qd7 25. Qb4 Bc6 26. Rd3 Bxf3+ 27. exf3 Qc6 28. Rc1 Bc5 29. Qd2 b6 30. Bxc5 Rxd3 31. Qxd3 Qxc5 32. Qd7 Qc6 33. Qxa7 Ra8 34. Qe7 Rxa2+ 35. Kh3 h6 36. Rc3 Kh7 37. Qd6 Qxd6 38. exd6 Rd2 39. c5 bxc5 40. Rxc5 Rxd6 41. Re5 Kg6 42. Re2 Kf6 43. f4 Rd5 44. Kg2 e5 45. fxe5+ Rxe5 46. Ra2 g5 47. Kf3 g4+ 48. Kf2 Rb5 49. Rc2 Kg5 50. Ra2 f4 51. gxf4+ Kxf4 52. Ra4+ Kg5 53. Ra2 h5 54. Rc2 h4 55. Ra2 Rb4 56. Rc2 Rf4+ 57. Kg2 h3+ 58. Kg1 Rd4 59. Kf2 Rd1 60. Ra2 Rh1 61. Ke3 Kh4 62. Kf4 Rf1+ 63. Ke3 Rf3+ 64. Ke2 Rf4 65. Ra8 Rf5 66. Rh8+ Kg5 67. Ra8 Rb5 68. Ra2 Rb1 69. Ke3 Rh1 70. Ra5+ Kh4 71. Ra2 Rxh2 72. Rxh2 g3 73. Ra2 h2 74. Ra8 g2 75. Rh8+ Kg5 76. Rg8+ Kf5 77. Rxg2 h1Q 78. Kf2 Kf4 79. Rg1 Qh4+ 80. Ke2 Qe7+ 81. Kd2 Qb4+ 82. Kd3 Qb3+ 0-1

[Event "JPN-ch"]
[Site "Tokyo"]
[Date "2020.10.31"]
[Round "2"]
[White "Ogasa, Seiichi"]
[Black "Nishino, Tatsuya"]
[Result "1-0"]
[ECO "A10"]
[WhiteElo "1636"]
[BlackElo "1905"]
[PlyCount "89"]
[EventDate "2020.10.31"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "JPN"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. g3 d5 2. Bg2 g6 3. c4 c6 4. Nc3 d4 5. Na4 Bg7 6. d3 e5 7. Nf3 Ne7 8. 0-0 0-0 9. e3 Nf5 10. exd4 Nxd4 11. Nxd4 Qxd4 12. Be3 Qd8 13. Nc5 Nd7 14. Ne4 f5 15. Nd6 Nf6 16. Bc5 Nd7 17. Ba3 Rf6 18. c5 Rb8 19. Qb3+ Kf8 20. Rfe1 Ke7 21. f4 Re6 22. d4 e4 23. d5 cxd5 24. Qxd5 Nf6 25. Qc4 Bd7 26. c6 Qb6+ 27. Bc5 Qxc6 28. Nxf5+ Kf7 29. Nd4 Qc7 30. Bh3 Rbe8 31. Rac1 h5 32. Nxe6 Bxe6 33. Bxe6+ Rxe6 34. Bxa7 Qa5 35. Qc7+ Qxc7 36. Rxc7+ Re7 37. Rec1 Nd5 38. Rxe7+ Kxe7 39. Rc4 e3 40. Re4+ Kd6 41. Bxe3 Bxb2 42. Bd4 Ba3 43. Re8 b5 44. Ra8 Bc5 45. Ra6+ 1-0

[Event "JPN-ch 52nd"]
[Site "Tokyo"]
[Date "2019.04.29"]
[Round "1"]
[White "Aoshima, Mirai"]
[Black "Ogasa, Seiichi"]
[Result "1-0"]
[ECO "E71"]
[WhiteElo "2313"]
[BlackElo "1853"]
[PlyCount "87"]
[EventDate "2019.04.29"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "JPN"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d6 4. e4 Bg7 5. Nge2 0-0 6. h3 c5 7. d5 e6 8. Ng3 exd5 9. exd5 Re8+ 10. Be2 Nfd7 11. 0-0 Qh4 12. Nb5 Na6 13. Nxd6 Rf8 14. Qb3 Nb6 15. a4 Rb8 16. Bd2 Be5 17. Nde4 h6 18. Bc3 Nd7 19. Bxe5 Nxe5 20. Qc3 Qf4 21. Nd6 f5 22. Nxc8 Rbxc8 23. Rad1 Rcd8 24. Rfe1 Rf7 25. Bf1 Nd7 26. Re3 Nb4 27. Rde1 Nf6 28. Re6 Qd4 29. Qc1 Kh7 30. Ne2 Nd3 31. Nxd4 Nxc1 32. Nb5 Nb3 33. Nd6 Rff8 34. Re7+ Kg8 35. Nxb7 Rb8 36. d6 Nd4 37. Nxc5 Rxb2 38. d7 Nc6 39. Ne6 Nxe7 40. Nxf8 Nc6 41. Re6 Nd8 42. Re8 Rb8 43. Ne6+ Kf7 44. Nxd8+ 1-0

[Event "Tokyo City-ch"]
[Site "Tokyo"]
[Date "2019.03.24"]
[Round "4"]
[White "Kojima, Shinya"]
[Black "Ogasa, Seiichi"]
[Result "1-0"]
[ECO "E60"]
[WhiteElo "2494"]
[BlackElo "1797"]
[PlyCount "87"]
[EventDate "2019.03.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. g3 d6 5. Bg2 0-0 6. 0-0 c5 7. dxc5 dxc5 8. Ne5 Qb6 9. Nc3 Rd8 10. Qb3 Na6 11. Be3 Rb8 12. Nd3 Ng4 13. Bf4 e5 14. Bg5 Qxb3 15. axb3 f6 16. Bd2 Bf5 17. Bd5+ Kf8 18. e4 Be6 19. Ra5 Bxd5 20. Nxd5 Rbc8 21. h3 Nh6 22. Be3 f5 23. Nxc5 Nxc5 24. Bxc5+ Ke8 25. Bxa7 fxe4 26. Re1 Nf5 27. Rxe4 Rc6 28. Be3 Nd6 29. Rh4 h5 30. Bg5 Rd7 31. Bf6 Kf7 32. Bxg7 Kxg7 33. Nc3 Re7 34. c5 Nf7 35. Rb4 Rec7 36. Rbb5 Ng5 37. Kg2 Ne6 38. Nd5 Rd7 39. Nb6 Rd2 40. Nc4 Rd5 41. Rxb7+ Kf6 42. b4 Rd4 43. Nd6 Nc7 44. Rxc7 1-0

[Event "Tokyo City-ch"]
[Site "Tokyo"]
[Date "2019.03.24"]
[Round "5"]
[White "Ogasa, Seiichi"]
[Black "Osaka, Takuma"]
[Result "0-1"]
[ECO "B25"]
[WhiteElo "1797"]
[BlackElo "2090"]
[PlyCount "74"]
[EventDate "2019.03.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. d3 g6 5. g3 Bg7 6. Bg2 0-0 7. 0-0 Nc6 8. Ne2 Qc7 9. c3 Rb8 10. Nh4 Bg4 11. f3 Bd7 12. Be3 b5 13. Qd2 Rfc8 14. Bh6 Bh8 15. f4 Ng4 16. f5 Nxh6 17. Qxh6 Bg7 18. Qf4 Bf6 19. Nf3 Ne5 20. Rad1 Nxf3+ 21. Rxf3 b4 22. c4 d5 23. cxd5 Qxf4 24. gxf4 Bxb2 25. Bh3 Rc7 26. Rg3 Kf8 27. fxg6 hxg6 28. Kf2 Bxh3 29. Rxh3 Bg7 30. f5 c4 31. fxg6 fxg6 32. Nf4 Kg8 33. Ne6 Rcc8 34. dxc4 Rxc4 35. Nxg7 Kxg7 36. Kf3 b3 37. Rd2 b2 0-1

[Event "Tokyo City-ch"]
[Site "Tokyo"]
[Date "2019.03.24"]
[Round "6"]
[White "Sharapova, Anzama"]
[Black "Ogasa, Seiichi"]
[Result "0-1"]
[ECO "B80"]
[WhiteElo "2022"]
[BlackElo "1797"]
[PlyCount "82"]
[EventDate "2019.03.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 Nc6 7. Be2 a6 8. Qd2 Be7 9. f3 0-0 10. 0-0-0 Qc7 11. g4 b5 12. g5 Nd7 13. Rdg1 b4 14. Nd1 Nce5 15. Qxb4 Nc5 16. Qc3 Qb7 17. Nb3 Na4 18. Qd4 Qc6 19. f4 Ng6 20. Na5 Qd7 21. f5 exf5 22. exf5 Ne5 23. Bf4 Bd8 24. Qd5 Bxa5 25. Qxa5 Bb7 26. Bxe5 dxe5 27. b3 Bxh1 28. Rxh1 Qc6 29. Re1 Rfc8 30. Bc4 Nb6 31. Nb2 Nxc4 32. Nxc4 e4 33. Qb6 Qc5 34. Qxc5 Rxc5 35. Nd6 Rd5 36. Nxe4 Rxf5 37. Rg1 Rf4 38. Nc3 Rf2 39. h4 Rc8 40. Kb2 Kf8 41. Rc1 Rh2 0-1

[Event "Tokyo City-ch"]
[Site "Tokyo"]
[Date "2019.03.23"]
[Round "2"]
[White "Matsuo, Tomohiko"]
[Black "Ogasa, Seiichi"]
[Result "0-1"]
[ECO "B42"]
[WhiteElo "2234"]
[BlackElo "1797"]
[PlyCount "52"]
[EventDate "2019.03.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Bd3 a6 6. 0-0 Qc7 7. c4 Nc6 8. Nxc6 bxc6 9. Nc3 Be7 10. Be3 d6 11. f4 0-0 12. Qf3 Re8 13. g4 g6 14. f5 exf5 15. exf5 Bd8 16. Bg5 Qa7+ 17. Kh1 Nd5 18. Bxd8 Nxc3 19. fxg6 hxg6 20. Bb6 Qd7 21. bxc3 c5 22. Kg1 Bb7 23. Qf4 Re7 24. Ba5 Qc6 25. Qg3 Re3 26. Rf3 Rxf3 0-1

[Event "Tokyo City-ch"]
[Site "Tokyo"]
[Date "2019.03.23"]
[Round "3"]
[White "Ogasa, Seiichi"]
[Black "Shiomi, Ryo"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1797"]
[BlackElo "2149"]
[PlyCount "85"]
[EventDate "2019.03.23"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Nf3 Bd6 7. Bg5 c6 8. 0-0-0 Ke7 9. Bc4 Bc7 10. Rd2 Nbd7 11. Rhd1 h6 12. Bh4 b5 13. Bxb5 g5 14. Bxc6 gxh4 15. Bxa8 h3 16. gxh3 Nb6 17. Bc6 Bxh3 18. Nh4 Bg4 19. f3 Bc8 20. a4 Nc4 21. Rd3 Rg8 22. b3 Nd6 23. Nb5 Nxb5 24. axb5 Rg5 25. Nf5+ Bxf5 26. exf5 Bb6 27. Be4 Rh5 28. Rh1 Bf2 29. b4 Rh4 30. Kb2 Nxe4 31. fxe4 Rxe4 32. Kb3 Rf4 33. Rh3 e4 34. Ra1 Rxf5 35. c4 e3 36. Rxa7+ Kf6 37. Ra2 Ke5 38. b6 Kd6 39. c5+ Kc6 40. Re2 Re5 41. Rxh6+ Kb5 42. b7 Re8 43. Rb6# 1-0

[Event "Tokyo op"]
[Site "Tokyo"]
[Date "2018.10.07"]
[Round "4"]
[White "Noguchi, Koji"]
[Black "Ogasa, Seiichi"]
[Result "1-0"]
[ECO "A24"]
[WhiteElo "2218"]
[BlackElo "1745"]
[PlyCount "139"]
[EventDate "2018.10.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. e4 d6 6. Nge2 e5 7. d3 c6 8. 0-0 Nbd7 9. h3 Ne8 10. Be3 f5 11. exf5 gxf5 12. Qd2 Ndf6 13. d4 Qe7 14. Rad1 e4 15. Nf4 Qf7 16. b3 Nh5 17. Qe2 Nef6 18. d5 Nxf4 19. Bxf4 Ne8 20. Qd2 Qf6 21. Ne2 c5 22. Bg5 Qb2 23. Qxb2 Bxb2 24. Nf4 Kf7 25. f3 Rg8 26. Bh4 e3 27. Rfe1 Bd4 28. Kh2 Bd7 29. Ne2 Bh8 30. f4 b5 31. Ng1 Bd4 32. Nf3 bxc4 33. Nxd4 cxd4 34. bxc4 Nf6 35. Rxd4 Rge8 36. Rd3 Rac8 37. Rdxe3 Rxe3 38. Rxe3 Rxc4 39. Ra3 Rc7 40. Ra6 Ne4 41. Bxe4 fxe4 42. g4 Bb5 43. Rxd6 Rc2+ 44. Kg1 e3 45. Rf6+ Kg7 46. Re6 e2 47. a3 a6 48. d6 Rc1+ 49. Kh2 Rd1 50. f5 Rd2 51. Be1 Rd1 52. Bc3+ Kg8 53. Bb4 Rd3 54. Rxe2 Rxd6 55. Re8+ Bxe8 56. Bxd6 Bd7 57. Kg3 Kf7 58. Kf4 h6 59. Ke5 Ba4 60. Bb4 Bb5 61. Bd2 Bf1 62. h4 Be2 63. Kf4 Kf6 64. Kg3 h5 65. Bc3+ Kf7 66. g5 Bd3 67. Kf4 Bc2 68. g6+ Kg8 69. Kg5 Bd3 70. f6 1-0

[Event "Tokyo op"]
[Site "Tokyo"]
[Date "2018.10.06"]
[Round "2"]
[White "Ogasa, Seiichi"]
[Black "Higashino, Tetsuo"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "1745"]
[BlackElo "2209"]
[PlyCount "80"]
[EventDate "2018.10.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. d3 d6 6. e4 c5 7. c3 Nc6 8. h3 e5 9. Bg5 Qb6 10. Qd2 Be6 11. Na3 Qa6 12. Rfd1 b5 13. Bf1 Qb7 14. Bh6 d5 15. Bxg7 Kxg7 16. Qg5 Rad8 17. Qe3 d4 18. Qe2 a6 19. Bg2 Qe7 20. Nh4 Qd7 21. Kh2 Rfe8 22. f4 exf4 23. gxf4 Nh5 24. Qf2 Qc7 25. e5 Ne7 26. Be4 Nd5 27. Bxd5 Rxd5 28. c4 bxc4 29. Nxc4 Bd7 30. Nd6 Rxd6 31. exd6 Qxd6 32. Rf1 Re3 33. Ng2 Rxh3+ 34. Kg1 Ng3 35. Qd2 Bc6 36. Rfe1 Qd5 37. Re4 Rh1+ 38. Kf2 Nxe4+ 39. dxe4 Qxe4 40. Rg1 Qf3+ 0-1

[Event "JPN SC3 email"]
[Site "ICCF email"]
[Date "2013.03.01"]
[Round "?"]
[White "Hayakawa, Satoru"]
[Black "Ogasa, Seiichi"]
[Result "1-0"]
[ECO "E60"]
[WhiteElo "2311"]
[BlackElo "2022"]
[PlyCount "49"]
[EventDate "2013.??.??"]
[EventType "tourn (corr)"]
[EventRounds "5"]
[EventCountry "JPN"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. c4 d6 6. d4 c5 7. d5 e6 8. dxe6 Bxe6 9. Ng5 Nc6 10. Nxe6 fxe6 11. Nc3 a6 12. Bf4 Ne8 13. Ne4 Ne5 14. Bh3 Qe7 15. Bg5 Bf6 16. Bxf6 Rxf6 17. Nxf6+ Qxf6 18. Rc1 b5 19. Bg2 Rd8 20. cxb5 axb5 21. a4 Rb8 22. b4 c4 23. axb5 d5 24. Bxd5 exd5 25. Qxd5+ 1-0

[Event "JPN SC3 email"]
[Site "ICCF email"]
[Date "2013.03.01"]
[Round "?"]
[White "Ogasa, Seiichi"]
[Black "Huzita, Sadayuki"]
[Result "0-1"]
[ECO "A07"]
[WhiteElo "2022"]
[BlackElo "2066"]
[PlyCount "58"]
[EventDate "2013.??.??"]
[EventType "tourn (corr)"]
[EventRounds "5"]
[EventCountry "JPN"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nc6 3. Bg2 e5 4. d3 Bb4+ 5. c3 Be7 6. 0-0 Nf6 7. Nbd2 0-0 8. e4 dxe4 9. dxe4 Qd3 10. Re1 Rd8 11. Qe2 Qxe2 12. Rxe2 Be6 13. Ng5 Bg4 14. Re1 Nd7 15. Nc4 Nc5 16. Be3 Nd3 17. Reb1 h6 18. Nf3 b5 19. Ncd2 Rab8 20. h3 Be6 21. Ne1 Bc5 22. Bxc5 Nxc5 23. Nf1 Na4 24. Ne3 Na5 25. f4 Nc4 26. Nxc4 bxc4 27. Nf3 exf4 28. gxf4 Rxb2 29. Rxb2 Nxb2 0-1

[Event "JPN SC3 email"]
[Site "ICCF email"]
[Date "2013.03.01"]
[Round "?"]
[White "Ogasa, Seiichi"]
[Black "Tago, Shunnichi"]
[Result "0-1"]
[ECO "B17"]
[WhiteElo "2022"]
[BlackElo "1793"]
[PlyCount "52"]
[EventDate "2013.??.??"]
[EventType "tourn (corr)"]
[EventRounds "5"]
[EventCountry "JPN"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Ng3 e6 7. Bd3 Be7 8. 0-0 c5 9. c3 0-0 10. Re1 Qc7 11. Ne5 Rd8 12. Nh5 g6 13. Ng3 c4 14. Nxc4 b5 15. Nd2 a6 16. h4 Bd6 17. Ndf1 Bb7 18. h5 Qc6 19. d5 Qxd5 20. Ne3 Qc6 21. hxg6 hxg6 22. Ne2 Ng4 23. Nd4 Bh2+ 24. Kf1 Nxe3+ 25. Bxe3 Qxg2+ 26. Ke2 Nc5 0-1

[Event "JPN SC3 email"]
[Site "ICCF email"]
[Date "2013.03.01"]
[Round "?"]
[White "Saitou, Atsushi"]
[Black "Ogasa, Seiichi"]
[Result "1-0"]
[ECO "D87"]
[WhiteElo "2208"]
[BlackElo "2022"]
[PlyCount "63"]
[EventDate "2013.??.??"]
[EventType "tourn (corr)"]
[EventRounds "5"]
[EventCountry "JPN"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 0-0 9. 0-0 Nc6 10. Be3 Qc7 11. Rc1 Rd8 12. Bf4 Qd7 13. d5 Na5 14. Bd3 b5 15. Be3 c4 16. Bc2 e6 17. dxe6 fxe6 18. f4 Qe7 19. Qe1 Nc6 20. e5 Bb7 21. Rb1 a6 22. Bb6 Rd7 23. a4 Qa3 24. Ng3 b4 25. Ne4 b3 26. Bxb3 cxb3 27. Nc5 Re7 28. Rxb3 Qxb3 29. Nxb3 Rb8 30. Nc5 a5 31. Qd2 Ba8 32. Rb1 1-0

[Event "JPN SC3 email"]
[Site "ICCF email"]
[Date "2013.03.01"]
[Round "?"]
[White "Schmidt, Loren R"]
[Black "Ogasa, Seiichi"]
[Result "1-0"]
[ECO "D91"]
[WhiteElo "2306"]
[BlackElo "2022"]
[PlyCount "39"]
[EventDate "2013.??.??"]
[EventType "tourn (corr)"]
[EventRounds "5"]
[EventCountry "JPN"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bg5 Ne4 5. Bh4 Nxc3 6. bxc3 Bg7 7. e3 c5 8. Nf3 Nc6 9. cxd5 Qxd5 10. Be2 0-0 11. 0-0 cxd4 12. cxd4 Bf5 13. Nd2 e5 14. Bf3 Qb5 15. d5 e4 16. Nxe4 Bxe4 17. Bxe4 Ne5 18. d6 Rfe8 19. Rb1 Qc4 20. Qd5 1-0

[Event "JPN Hayakawa-4 email"]
[Site "ICCF email"]
[Date "2011.12.31"]
[Round "?"]
[White "Hayakawa, Satoru"]
[Black "Ogasa, Seiichi"]
[Result "1-0"]
[ECO "C17"]
[WhiteElo "2314"]
[BlackElo "2089"]
[PlyCount "53"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "JPN"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 Ne7 6. Nf3 Nbc6 7. Nb5 Bxd2+ 8. Qxd2 0-0 9. dxc5 Ng6 10. Qe3 f6 11. exf6 Qxf6 12. 0-0-0 Nge5 13. Nxe5 Nxe5 14. f3 b6 15. cxb6 axb6 16. Kb1 Bd7 17. Be2 Rfc8 18. Rhe1 Qf5 19. Nd4 Qf6 20. f4 Nf7 21. Bg4 e5 22. Bxd7 exd4 23. Rxd4 Rd8 24. Rxd5 Nh6 25. g4 Qf8 26. Qxb6 Qxf4 27. Be6+ 1-0

[Event "JPN Hayakawa-4 email"]
[Site "ICCF email"]
[Date "2011.12.31"]
[Round "?"]
[White "Horie, Takahiro"]
[Black "Ogasa, Seiichi"]
[Result "1-0"]
[ECO "E68"]
[WhiteElo "1863"]
[BlackElo "2089"]
[PlyCount "57"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "JPN"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. d4 d6 6. c4 Nbd7 7. Nc3 e5 8. dxe5 dxe5 9. e4 c6 10. Qc2 Qc7 11. b3 a5 12. Bb2 Nc5 13. Nxe5 Qxe5 14. Nd5 Qd6 15. e5 Qd8 16. exf6 cxd5 17. fxg7 Re8 18. cxd5 b6 19. Rad1 Bf5 20. Qd2 Ra7 21. h3 Rd7 22. Qd4 Re2 23. Bf3 Rc2 24. g4 Be4 25. Bxe4 Nxe4 26. Ba1 Nd6 27. Qf4 Rxa2 28. Bf6 Qa8 29. Rfe1 1-0

[Event "JPN Hayakawa-4 email"]
[Site "ICCF email"]
[Date "2011.12.31"]
[Round "?"]
[White "Hoshino, Eizo"]
[Black "Ogasa, Seiichi"]
[Result "1/2-1/2"]
[ECO "A25"]
[WhiteElo "2142"]
[BlackElo "2089"]
[PlyCount "39"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "JPN"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. c4 e5 2. e3 Nc6 3. Nc3 f5 4. d4 Nf6 5. d5 Ne7 6. Nf3 d6 7. Be2 Ng6 8. h4 e4 9. Nd4 a6 10. h5 Ne5 11. Qc2 Bd7 12. f3 Qe7 13. fxe4 fxe4 14. Nxe4 Nfg4 15. Bd2 Qf7 16. 0-0-0 0-0-0 17. Rdf1 Qe8 18. c5 Kb8 19. c6 Bc8 20. cxb7 1/2-1/2

[Event "JPN Hayakawa-4 email"]
[Site "ICCF email"]
[Date "2011.12.31"]
[Round "?"]
[White "Ogasa, Seiichi"]
[Black "Huzita, Sadayuki"]
[Result "0-1"]
[ECO "A23"]
[WhiteElo "2089"]
[BlackElo "1865"]
[PlyCount "56"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "JPN"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 c6 4. Bg2 d5 5. Nf3 d4 6. Nb1 e4 7. Ng5 Bf5 8. 0-0 h6 9. Nxf7 Kxf7 10. Qb3 Qb6 11. Qa4 Na6 12. f3 exf3 13. Bxf3 Bc2 14. Bd5+ cxd5 15. Qd7+ Kg6 16. Rxf6+ Qxf6 17. d3 dxc4 18. Nd2 cxd3 19. Nf3 dxe2 20. Bf4 Bc5 21. Ne5+ Kh7 22. Qxb7 Rae8 23. Qd5 d3+ 24. Kg2 Rxe5 25. Bxe5 Qf2+ 26. Kh3 Qf1+ 27. Kg4 h5+ 28. Kh4 Be7+ 0-1

[Event "JPN Hayakawa-4 email"]
[Site "ICCF email"]
[Date "2011.12.31"]
[Round "?"]
[White "Ogasa, Seiichi"]
[Black "Saitou, Tomoe"]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "2089"]
[PlyCount "33"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "JPN"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. 0-0 Bc5 5. d4 Bd6 6. c4 0-0 7. Nc3 dxc4 8. e4 Nc6 9. e5 Bb4 10. exf6 Qxf6 11. Nb5 a6 12. Nxc7 Rb8 13. d5 exd5 14. Nxd5 Qd6 15. Bf4 Qg6 16. Bxb8 Nxb8 17. Nxb4 1-0

[Event "JPN Hayakawa-4 email"]
[Site "ICCF email"]
[Date "2011.12.31"]
[Round "?"]
[White "Ogasa, Seiichi"]
[Black "Schmidt, Loren R"]
[Result "0-1"]
[ECO "B02"]
[WhiteElo "2089"]
[BlackElo "2246"]
[PlyCount "38"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "JPN"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Nc3 e6 6. Nxd5 exd5 7. d4 d6 8. cxd6 cxd6 9. Nf3 Nc6 10. Bf4 dxe5 11. dxe5 Bb4+ 12. Bd2 Bxd2+ 13. Qxd2 0-0 14. Be2 Re8 15. 0-0 Nxe5 16. Rfd1 Nc6 17. Bb5 Qb6 18. Qxd5 Be6 19. Qh5 g6 0-1

[Event "JPN Hayakawa-4 email"]
[Site "ICCF email"]
[Date "2011.12.31"]
[Round "?"]
[White "Ogasa, Seiichi"]
[Black "Tago, Shunnichi"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "2089"]
[BlackElo "1788"]
[PlyCount "105"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "JPN"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 d5 6. Qc2 c5 7. Bg2 Nbd7 8. 0-0 Ne4 9. a3 Bxd2 10. Nbxd2 Ndf6 11. cxd5 Nxd2 12. Nxd2 exd5 13. Qxc5 Be6 14. Rac1 Rc8 15. Qb5+ Bd7 16. Qxb7 Rb8 17. Qa6 0-0 18. b3 Bb5 19. Qa7 Qb6 20. Qxb6 Rxb6 21. Bf3 Rbb8 22. Rc5 a4 23. b4 Rfc8 24. Rfc1 Re8 25. e3 Ne4 26. Nb1 Nxc5 27. Rxc5 Rec8 28. Nc3 Rxc5 29. dxc5 Kf8 30. Bxd5 Ke7 31. Kg2 f6 32. Kf3 f5 33. Kf4 Kf6 34. h4 h6 35. h5 Be8 36. Bf3 Rd8 37. Nd5+ Ke6 38. Nc7+ Kf6 39. b5 Bxh5 40. Bxh5 g5+ 41. Kf3 Ke5 42. b6 Rd3 43. b7 Rb3 44. c6 Kd6 45. Na6 Kxc6 46. b8Q Rxb8 47. Nxb8+ Kc5 48. Bf7 h5 49. e4 h4 50. gxh4 fxe4+ 51. Kxe4 gxh4 52. Nd7+ Kd6 53. Ne5 1-0

[Event "JPN Hayakawa-4 email"]
[Site "ICCF email"]
[Date "2011.12.31"]
[Round "?"]
[White "Saitou, Atsushi"]
[Black "Ogasa, Seiichi"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "2155"]
[BlackElo "2089"]
[PlyCount "39"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "8"]
[EventCountry "JPN"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 c5 5. d5 d6 6. Nf3 0-0 7. h3 e6 8. Bd3 exd5 9. exd5 Re8+ 10. Be3 Nh5 11. 0-0 Na6 12. a3 Ng3 13. Bg5 f6 14. Bxf6 Bxf6 15. fxg3 Nc7 16. Qd2 Bg7 17. g4 Rb8 18. Rab1 a6 19. Ne4 b5 20. Nfg5 1-0

[Event "JPN-ch pr04 email"]
[Site "ICCF email"]
[Date "2011.02.27"]
[Round "?"]
[White "Miyata, Kazunori"]
[Black "Ogasa, Seiichi"]
[Result "0-1"]
[ECO "C12"]
[WhiteElo "1685"]
[PlyCount "34"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3 7. bxc3 Ne4 8. Qg4 g6 9. 0-0-0 c5 10. Nf3 Qa5 11. Kb1 Nxc3+ 12. Bxc3 Qxc3 13. Bd3 Rg8 14. Rhe1 c4 15. Be2 Nc6 16. Qf4 Qb4+ 17. Kc1 c3 0-1

[Event "JPN-ch pr04 email"]
[Site "ICCF email"]
[Date "2011.02.27"]
[Round "?"]
[White "Ogasa, Seiichi"]
[Black "Miyata, Kazunori"]
[Result "1-0"]
[ECO "A52"]
[BlackElo "1685"]
[PlyCount "47"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Nc6 5. Bg5 Be7 6. Bxe7 Qxe7 7. Nc3 Ncxe5 8. Nd5 Qd8 9. e3 0-0 10. h3 Nxf3+ 11. Qxf3 Ne5 12. Qg3 Re8 13. Be2 d6 14. 0-0 Kh8 15. Rad1 b6 16. e4 c5 17. f4 Nc6 18. Bd3 Nd4 19. f5 Bb7 20. f6 g6 21. Qg5 Ne6 22. Qh6 Bxd5 23. exd5 Nd4 24. Qg7# 1-0

[Event "JPN-ch pr04 email"]
[Site "ICCF email"]
[Date "2011.02.27"]
[Round "?"]
[White "Ogasa, Seiichi"]
[Black "Saitou, Mami"]
[Result "1-0"]
[ECO "A07"]
[PlyCount "45"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 Nc6 4. 0-0 e5 5. d3 Bc5 6. Nxe5 Nxe5 7. d4 Qd6 8. dxc5 Qxc5 9. Be3 Qb5 10. Nc3 Qxb2 11. Bd4 Qb4 12. Bxe5 Qc5 13. Bxf6 gxf6 14. Nxd5 0-0 15. Nxf6+ Kg7 16. Ne4 Qe5 17. f4 Qb5 18. Qd4+ Kg8 19. Nf6+ Kg7 20. Nh5+ Kh6 21. Qg7+ Kxh5 22. Bf3+ Bg4 23. Qxh7# 1-0

[Event "JPN-ch pr04 email"]
[Site "ICCF email"]
[Date "2011.02.27"]
[Round "?"]
[White "Ogasa, Seiichi"]
[Black "Tago, Shunnichi"]
[Result "1-0"]
[ECO "B04"]
[BlackElo "1747"]
[PlyCount "53"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. exd6 cxd6 6. Nc3 g6 7. Nf3 Bg7 8. Be2 0-0 9. 0-0 Qc7 10. Nb5 Qd8 11. Be3 Bg4 12. h3 Bf5 13. Qd2 N8d7 14. Nh4 Be4 15. Nc3 Nf6 16. d5 Rc8 17. b3 Qd7 18. Rac1 Ra8 19. f3 Bf5 20. g4 g5 21. Nxf5 h6 22. h4 e6 23. Nxg7 Kxg7 24. hxg5 hxg5 25. Bxg5 Rh8 26. Bxf6+ Kxf6 27. Ne4+ 1-0

[Event "JPN-ch pr04 email"]
[Site "ICCF email"]
[Date "2011.02.27"]
[Round "?"]
[White "Saitou, Mami"]
[Black "Ogasa, Seiichi"]
[Result "0-1"]
[ECO "B30"]
[PlyCount "48"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Nf3 g6 4. Bb5 Bg7 5. d4 cxd4 6. Nxd4 Nxd4 7. 0-0 Nxb5 8. Nxb5 d6 9. Bf4 Qb6 10. a4 a6 11. Nc3 Nf6 12. e5 dxe5 13. Bxe5 0-0 14. b3 Bf5 15. Bd4 Qc7 16. h3 e5 17. Be3 Qxc3 18. Ra3 Rfd8 19. Qe2 Nd5 20. Bd2 Qxc2 21. h4 Nf4 22. Qe3 Rxd2 23. Qxe5 Bxe5 24. a5 Qe4 0-1

[Event "JPN-ch pr04 email"]
[Site "ICCF email"]
[Date "2011.02.27"]
[Round "?"]
[White "Tago, Shunnichi"]
[Black "Ogasa, Seiichi"]
[Result "1-0"]
[ECO "C44"]
[WhiteElo "1747"]
[PlyCount "61"]
[EventDate "2011.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. d4 Nxe4 5. d5 Nb8 6. Bd3 Nc5 7. Nxe5 d6 8. Bb5+ Nbd7 9. Nf3 a6 10. Be2 Be7 11. Qc2 Nf6 12. 0-0 Nxd5 13. Bc4 Be6 14. b4 Nd7 15. Nd4 N7f6 16. Nxe6 fxe6 17. Re1 Qd7 18. Nd2 0-0-0 19. Nf3 e5 20. Rd1 Qc6 21. Qb3 Nf4 22. Bxf4 exf4 23. Be6+ Kb8 24. c4 Qe4 25. Re1 Qg6 26. a4 Rde8 27. b5 a5 28. b6 c6 29. Qc3 Qh5 30. Re5 dxe5 31. Qxa5 1-0

