| # |
Black player |
Rank |
White player |
Rank |
Result |
# moves |
Date |
Event |
Round |
| 1 | Imamura Toshiya | 8p | Kobayashi Koichi | 9p | B+4,5 | 277 | 1989-07-07 | Gosei, 14th | Title match, game 1 | | 2 | Kobayashi Koichi | 9p | Imamura Toshiya | 8p | B+R | 141 | 1989-07-11 | Gosei, 14th | Title match, game 4 | | 3 | Kobayashi Koichi | 9p | Imamura Toshiya | 8p | B+R | 205 | 1989-07-18 | Gosei, 14th | Title match, game 2 | | 4 | Imamura Toshiya | 8p | Kobayashi Koichi | 9p | W+3.5 | 282 | 1989-07-28 | Gosei, 14th | Title match, game 3 | | 5 | Imamura Toshiya | 8p | Kobayashi Koichi | 9p | W+6 | 255 | 1989-11-23 | Judan, 28th | Losers' Section, 3-2 | | 6 | Imamura Toshiya | 9p | Kobayashi Koichi | 9p | W+2.5 | 241 | 1990-06-14 | Tengen, 16th | Quaterfinal - 3 | | 7 | Kobayashi Koichi | 9p | Imamura Toshiya | 9p | B+R | 191 | 1992-01-08 | Honinbo, 47th | League, game 13 | | 8 | Kobayashi Koichi | 9p | Imamura Toshiya | 9p | B+R | 169 | 1999-09-02 | Haya Go Open | 2-4 | | 9 | Imamura Toshiya | 9p | Kobayashi Koichi | 9p | B+0.5 | 276 | 2000-01-24 | NHK Cup, 47th | 4-3 | | 10 | Imamura Toshiya | 9p | Kobayashi Koichi | 9p | W+R | 306 | 2004-02-05 | Meijin, 29th | League, game 11 | | 11 | Kobayashi Koichi | 9p | Imamura Yoshiaki | 9p | W+1.5 | 276 | 2000-06-22 | Meijin, 25th | League, game 29 | | 12 | Imamura Yoshiaki | 8p | Kobayashi Koichi | 9p | B+0.5 | 275 | 2003-08-07 | Kisei, 28th | League, Group A, game 08 | | 13 | Kobayashi Koichi | 7p | Inoue Kunio | 5p | B+R | 143 | 1976-03-09 | Prime Minister's Cup | Preliminaries | | 14 | Ishida Akira | 7p | Kobayashi Koichi | 7p | W+R | 134 | 1976-09-30 | Prime Minister's Cup, 20th | Final, game 1 | | 15 | Kobayashi Koichi | 7p | Ishida Akira | 7p | B+R | 205 | 1976-10-14 | Prime Minister's Cup, 20th | Final, game 2 | | 16 | Ishida Akira | 7p | Kobayashi Koichi | 8p | W+R | 222 | 1979-04-19 | Oteai, 1979 | | | 17 | Kobayashi Koichi | 9p | Ishida Akira | 8p | B+R | 149 | 1981-07-23 | Kisei, 06th | Strongest Player Quarterfinal | | 18 | Ishida Akira | 9p | Kobayashi Koichi | 9p | B+R | 169 | 1982-06-24 | Kisei, 07th | Strongest Player Quarterfinal | | 19 | Kobayashi Koichi | 9p | Ishida Akira | 9p | B+R | 169 | 1983-06-02 | Meijin, 08th | League, game 25 | | 20 | Ishida Akira | 9p | Kobayashi Koichi | 9p | B+R | 191 | 1984-06-14 | Meijin, 09th | League, game 25 | | 21 | Kobayashi Koichi | 9p | Ishida Akira | 9p | B+R | 139 | 1985-02-21 | Meijin, 10th | League, game 11 | | 22 | Ishida Akira | 9p | Kobayashi Koichi | 9p | W+R | 120 | 1987-06-04 | Meijin, 12th | League, game 25 | | 23 | Ishida Akira | 9p | Kobayashi Koichi | 9p | W+R | 214 | 1988-03-24 | Meijin, 13th | League, game 16 | | 24 | Ishida Akira | 9p | Kobayashi Koichi | 9p | W+R | 186 | 1988-06-01 | Gosei, 13th | Challengers' Final | | 25 | Kobayashi Koichi | 9p | Ishida Akira | 9p | B+0.5 | 221 | 2003-03-03 | Ryusei Cup, 12th | Block F, Game 11 | | 26 | Kobayashi Koichi | 8p | Ishida Yoshio | 9p | W+R | 142 | 1978-04-13 | Honinbo, 33rd | League, game 25 | | 27 | Ishida Yoshio | 9p | Kobayashi Koichi | 8p | B+R | 131 | 1978-05-04 | Gosei, 03rd | League | | 28 | Kobayashi Koichi | 8p | Ishida Yoshio | 9p | W+R | 238 | 1979-03-22 | Honinbo, 34th | League, game 16 | | 29 | Ishida Yoshio | 9p | Kobayashi Koichi | 9p | B+R | 243 | 1979-08-28 | Oza, 28th | Semifinal - 1 | | 30 | Ishida Yoshio | 9p | Kobayashi Koichi | 9p | W+R | 164 | 1980-02-21 | Honinbo, 35th | League, game 12 | | 31 | Kobayashi Koichi | 9p | Ishida Yoshio | 9p | W+R | 157 | 1983-02-27 | Haya-go Senshuken, 15th | Final, game 1 | | 32 | Ishida Yoshio | 9p | Kobayashi Koichi | 9p | B+0.5 | 242 | 1983-03-13 | Haya-go Senshuken, 15th | Final, game 2 | | 33 | Kobayashi Koichi | 9p | Ishida Yoshio | 9p | W+4 | 261 | 1983-07-14 | Judan, 22nd | 1/8 Final - 7 | | 34 | Kobayashi Koichi | 9p | Ishida Yoshio | 9p | W+35 | 287 | 1984-01-04 | Haya-go Senshuken, 16th | Final, game 3 | | 35 | Kobayashi Koichi | 9p | Ishida Yoshio | 9p | W+15 | 248 | 1984-02-26 | Haya-go Senshuken, 16th | Final, game 1 | | 36 | Ishida Yoshio | 9p | Kobayashi Koichi | 9p | W+3 | 254 | 1984-03-11 | Haya-go Senshuken, 16th | Final, game 2 | | 37 | Ishida Yoshio | 9p | Kobayashi Koichi | 9p | W+R | 256 | 1985-11-16 | Tengen, 11th | Title match, game 1 | | 38 | Kobayashi Koichi | 9p | Ishida Yoshio | 9p | B+1.5 | 256 | 1985-11-29 | Tengen, 11th | Title match, game 2 | | 39 | Ishida Yoshio | 9p | Kobayashi Koichi | 9p | W+R | 146 | 1985-12-04 | Tengen, 11th | Title match, game 3 | | 40 | Kobayashi Koichi | 9p | Ishida Yoshio | 9p | W+R | 200 | 1986-05-01 | Gosei, 11th | Round 3 | | 41 | Kobayashi Koichi | 9p | Ishida Yoshio | 9p | B+2.5 | 209 | 1988-08-11 | Meijin, 13th | League, game 33 | | 42 | Kobayashi Koichi | 9p | Ishida Yoshio | 9p | B+0.5 | 272 | 1992-11-19 | Honinbo, 48th | League, game 05 | | 43 | Ishida Yoshio | 9p | Kobayashi Koichi | 9p | B+2.5 | 261 | 1994-06-20 | Ryusei Cup, 04th | Block A, Game 23 | | 44 | Ishida Yoshio | 9p | Kobayashi Koichi | 9p | W+R | 188 | 2003-06-12 | Kisei, 28th | League, Group A, game 02 | | 45 | Ishida Yoshio | 9p | Kobayashi Koichi | 9p | W+4.5 | 277 | 2011-06-25 | Igo Masters Cup, 1st | Semifinal | | 46 | Ishida Yoshio | 9p | Kobayashi Koichi | 9p | B+R | 239 | 2012-12-20 | | | | 47 | Ishigure Ikuro | 8p | Kobayashi Koichi | 8p | W+R | 172 | 1978-09-28 | Oteai, 1978 | | | 48 | Ishigure Ikuro | 8p | Kobayashi Koichi | 9p | W+R | 108 | 1981-09-03 | Kisei, 06th | Stongest Player Final | | 49 | Ishigure Ikuro | 8p | Kobayashi Koichi | 9p | W+R | 132 | 1981-10-08 | Kisei, 06th | 1 | | 50 | Ishigure Ikuro | 9p | Kobayashi Koichi | 9p | B+R | 149 | 1991-05-16 | Tengen, 17th | 1/8 Final - 4 | | 51 | Ishigure Ikuro | 9p | Kobayashi Koichi | 9p | W+R | 156 | 1995-11-16 | Gosei, 21st | 2-1 | | 52 | Kobayashi Koichi | 9p | Ishigure Ikuro | 9p | B+5.5 | 238 | 2010-05-13 | | | | 53 | Kobayashi Koichi | 4p | Ishii Kunio | 8p | B+1.5 | 258 | 1970-02-12 | Nihon Ki-in Championship, 17th | main tournament, round 1 | | 54 | Ishii Kunio | 9p | Kobayashi Koichi | 9p | W+R | 178 | 1979-07-03 | Oza, 28th | Quaterfinal - 1 | | 55 | Ishii Kunio | 9p | Kobayashi Koichi | 9p | W+1.5 | 284 | 1979-11-29 | Meijin, 05th | Qualifications - 3 | | 56 | Kobayashi Koichi | 9p | Ishii Kunio | 9p | B+R | 137 | 1982-07-29 | Kisei, 07th | Strongest Player Semifinal | | 57 | Kobayashi Koichi | 9p | Ishii Kunio | 9p | W+R | 134 | 1982-10-14 | Kisei, 07th | 1 | | 58 | Ishii Kunio | 9p | Kobayashi Koichi | 9p | W+R | 186 | 1983-08-11 | Meijin, 08th | 36 | | 59 | Kobayashi Koichi | 9p | Ishii Kunio | 9p | B+R | 173 | 1984-01-29 | Haya-go Senshuken, 16th | Semifinal - 1 | | 60 | Ishii Kunio | 9p | Kobayashi Koichi | 9p | W+R | 168 | 1993-04-08 | Oza, 41st | 1/8 Final - 4 | | 61 | Kobayashi Koichi | 9p | Ishii Kunio | 9p | W+0.5 | 263 | 1995-03-16 | Gosei, 20th | 1/8 Final - 4 | | 62 | Kobayashi Koichi | 9p | Ishii Kunio | 9p | B+R | 143 | 1997-01-01 | NHK Cup, 45th | 2-3 | | 63 | Ishii Kunio | 9p | Kobayashi Koichi | 9p | B+R | 157 | 1997-12-18 | Oza, 46th | Preliminaries, 3-1 | | 64 | Ishii Kunio | 9p | Kobayashi Koichi | 9p | W+R | 184 | 2004-03-29 | Ryusei Cup, 13th | Block G, Game 11 | | 65 | Ishii Mamoru | 7p | Kobayashi Koichi | 7p | W+R | 194 | 1976-06-05 | Kisei, 01st | Meidan, Final 7 dan | | 66 | Ishii Mamoru | 9p | Kobayashi Koichi | 9p | W+R | 106 | 1996-02-15 | Tengen, 22nd | 1-04 | | 67 | Ishii Shinzo | 9p | Kobayashi Koichi | 7p | B+1 | 253 | 1976-03-06 | Oza, 24th | 1/8 Final - 3 | | 68 | Kobayashi Koichi | 8p | Ishii Shinzo | 9p | B+R | 153 | 1977-04-28 | Oza, 25th | 1-01 | | 69 | Ishii Shinzo | 5p | Kobayashi Koichi | 9p | W+4.5 | 240 | 1985-02-28 | Tengen, 11th | | | 70 | Ishikura Noboru | 9p | Kobayashi Koichi | 9p | W+0.5 | 246 | 2007-02-22 | Judan, 46th | Preliminaries | | 71 | Iwata Tatsuaki | 9p | Kobayashi Koichi | 8p | W+5.5 | 282 | 1979-05-17 | Oza, 27th | 1-02 | | 72 | Iwata Tatsuaki | 9p | Kobayashi Koichi | 9p | W+6 | 222 | 1981-12-16 | Honinbo, 37th | League, game 04 | | 73 | Iwata Tatsuaki | 9p | Kobayashi Koichi | 9p | W+0.5 | 269 | 1983-01-13 | Judan, 21st | Losers' Section, Semifinal - 1 | | 74 | Iwata Tatsuaki | 9p | Kobayashi Koichi | 9p | W+6 | 255 | 1983-03-24 | Honinbo, 38th | League, game 24 | | 75 | Iwata Tatsuaki | 9p | Kobayashi Koichi | 9p | W+R | 188 | 1984-02-09 | Honinbo, 39th | League, game 18 | | 76 | Kobayashi Koichi | 9p | Iwata Tatsuaki | 9p | B+R | 217 | 1984-10-25 | Honinbo, 40th | League, game 03 | | 77 | Iwata Tatsuaki | 9p | Kobayashi Koichi | 9p | W+4.5 | 255 | 1987-05-14 | Oza, 35th | 1-08 | | 78 | Kobayashi Koichi | 9p | Iyama Yuta | 7p | W+8.5 | 252 | 2007-06-07 | Tengen, 33rd | 3 | | 79 | Iyama Yuta | 7p | Kobayashi Koichi | 9p | B+R | 181 | 2008-03-13 | Judan, 47th | Last primary tournament | | 80 | Iyama Yuta | 9p | Kobayashi Koichi | 9p | B+R | 261 | 2014-09-11 | Agon Cup, 21st | Semifinal | | 81 | Kobayashi Koichi | 9p | Izumitani Hideo | 8p | | 291 | 2015-07-30 | | | | 82 | Jiang Zhujiu | 7p | Kobayashi Koichi | 9p | W+R | 140 | 1985-03-11 | Japan-China Super Go, 1st | game 07 | | 83 | Jin Zezhen | 7p | Kobayashi Koichi | 9p | B+9.5 | 267 | 2016-10-06 | | | | 84 | Kada Katsuji | 9p | Kobayashi Koichi | 7p | W+R | 192 | 1976-07-08 | Kisei, 01st | Zendan - 1 | | 85 | Kada Katsuji | 9p | Kobayashi Koichi | 9p | W+0.5 | 230 | 1985-03-28 | Honinbo, 40th | League | | 86 | Kageyama Toshiro | 6p | Kobayashi Koichi | 6p | W+0.5 | 277 | 1972-01-01 | Prime Minister's Cup, 16th | Semifinal | | 87 | Kobayashi Koichi | 6p | Kaji Kazutame | 7p | B+R | 99 | 1974-06-06 | Prime Minister's Cup, 18th | 2 | | 88 | Kajiwara Takeo | 9p | Kobayashi Koichi | 9p | W+R | 242 | 1983-12-15 | Judan, 22nd | Losers' Section, Semifinal - 2 | | 89 | Kobayashi Koichi | 9p | Kajiwara Takeo | 9p | B+R | 215 | 1984-09-06 | Judan, 23rd | Winners' Section, Round 2 | | 90 | Kamimura Haruo | 6p | Kobayashi Koichi | 8p | B+R | 137 | 1978-03-18 | Shinei, 10th | Final | | 91 | Kamimura Haruo | 6p | Kobayashi Koichi | 9p | W+R | 196 | 1982-02-04 | Gosei, 07th | 1/8 Final - 6 | | 92 | Kamimura Haruo | 9p | Kobayashi Koichi | 9p | | 296 | 2015-06-25 | | | | 93 | Kamimura Kunio | 5p | Kobayashi Koichi | 5p | W+R | 112 | 1971-03-11 | Prime Minister's Cup, 15th | Preliminaries | | 94 | Kobayashi Koichi | 9p | Kamimura Kunio | 8p | B+R | 117 | 1985-08-08 | Tengen, 11th | 3-1 | | 95 | Kamimura Kunio | 9p | Kobayashi Koichi | 9p | W+4.5 | 269 | 1988-05-26 | Tengen, 14th | 1-16 | | 96 | Kobayashi Koichi | 9p | Kamimura Kunio | 9p | B+R | 157 | 1997-04-07 | Ryusei Cup, 06th | Block A, Game 10 | | 97 | Kobayashi Koichi | 5p | Kanno Kiyonori | 6p | B+7 | 272 | 1971-05-13 | Oteai, 1971 | | | 98 | Kobayashi Koichi | 7p | Kano Yoshinori | 9p | B+R | 161 | 1975-04-24 | Oza, 23rd | 1-01 | | 99 | Kataoka Satoshi | 9p | Kobayashi Koichi | 9p | B+1.5 | 255 | 1983-11-24 | Gosei, 09th | 1 | | 100 | Kobayashi Koichi | 9p | Kataoka Satoshi | 7p | B+R | 189 | 1984-12-27 | Honinbo, 40th | League |
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