| # |
Black player |
Rank |
White player |
Rank |
Result |
# moves |
Date |
Event |
Round |
| 1 | Tono Hiroaki | 9p | Kobayashi Koichi | 9p | W+1 | 271 | 1998-07-09 | Meijin, 23rd | League, game 32 | | 2 | Tono Hiroaki | 9p | Kobayashi Koichi | 9p | W+R | 182 | 1998-07-10 | Judan, 36th | Losers' Section, 1-2 | | 3 | Tozawa Akinobu | 7p | Kobayashi Koichi | 7p | W+R | 136 | 1974-10-17 | Prime Minister's Cup, 18th | Final | | 4 | Tozawa Akinobu | 8p | Kobayashi Koichi | 7p | W+3 | 242 | 1976-08-26 | Prime Minister's Cup, 20th | Quaterfinal - 4 | | 5 | Kobayashi Koichi | 8p | Tozawa Akinobu | 8p | B+R | 205 | 1979-09-20 | Oteai, 1979 | | | 6 | Tsuchida Masamitsu | 7p | Kobayashi Koichi | 6p | B+R | 175 | 1974-10-03 | Pro Best Ten, 12th | 1 | | 7 | Kobayashi Koichi | 9p | Tsuneishi Takashi | 1p ? | B+1.5 | 249 | 2012-09-13 | Gosei, 38th, preliminary tournament A | | | 8 | Kobayashi Koichi | 9p | Tsuruyama Atsushi | 7p | W+8.5 | 276 | 2012-02-02 | Kisei, 37th, last preliminary tournament | | | 9 | Tsuruyama Atsushi | 7p | Kobayashi Koichi | 9p | W+3.5 | 251 | 2012-12-06 | Tengen, 39th. preliminary tournament A | Final | | 10 | Uchida Shuhei | 7p | Kobayashi Koichi | 9p | W+R | 212 | 2016-08-04 | Gosei, 42nd, preliminary tournament A | | | 11 | Umeki Suguru | 4p | Kobayashi Koichi | 7p | W+R | 128 | 1974-10-24 | Oteai, 1974 | | | 12 | Kobayashi Koichi | 9p | Ushinohama Satsuo | 9p | W+2 | 295 | 1982-01-04 | Tengen, 08th | 1-08 | | 13 | Ushinohama Satsuo | 9p | Kobayashi Koichi | 9p | W+8.5 | 259 | 1985-10-28 | Kisei, 10th | Quaterfinal | | 14 | Ushinohama Satsuo | 9p | Kobayashi Koichi | 9p | W+0.5 | 261 | 2000-11-26 | NHK Cup, 47th | 2 | | 15 | Wang Jianhong | 7p | Kobayashi Koichi | 9p | W+1.5 | 221 | 1990-04-01 | Fujitsu Cup, 03rd | 2-2 | | 16 | Kobayashi Koichi | 9p | Wang Lei | 8p | W+R | 240 | 2003-09-11 | Internet Go cn-jp | 4 | | 17 | Kobayashi Koichi | 9p | Wang Lei | 8p | B+1.5 | 303 | 2003-11-12 | Nongshim Cup, 05th | 2-1 | | 18 | Weon Seongjin | 4p | Kobayashi Koichi | 9p | B+3.5 | 236 | 2002-04-30 | LG Cup, 07th | 1-01 | | 19 | Weon Seongjin | 5p | Kobayashi Koichi | 9p | B+3.5 | 279 | 2003-11-15 | Nongshim Cup, 05th | 2-4 | | 20 | Kobayashi Koichi | 9p | Xiao Zhenghao | 8p | W+0.5 | 240 | 2013-12-22 | | | | 21 | Kobayashi Koichi | 9p | Xie Yimin | 4p | B+R | 201 | 2008-09-25 | Tengen, 35th | preliminary tournament A | | 22 | Xie Yimin | 4p | Kobayashi Koichi | 9p | W+0.5 | 317 | 2009-09-03 | Tengen, 36th, preliminary tournament A | | | 23 | Kobayashi Koichi | 9p | Xie Yimin | 5p | B+R | 93 | 2011-02-17 | | | | 24 | Yamabe Toshiro | 9p | Kobayashi Koichi | 8p | B+R | 251 | 1977-10-02 | Haya-go Senshuken, 10th | Semifinal - 2 | | 25 | Yamabe Toshiro | 9p | Kobayashi Koichi | 8p | B+R | 193 | 1977-10-06 | Oza, 25th | Semifinal - 1 | | 26 | Kobayashi Koichi | 9p | Yamabe Toshiro | 9p | B+R | 147 | 1979-07-17 | Honinbo, 36th | League-entry preliminary, semi-final | | 27 | Kobayashi Koichi | 9p | Yamabe Toshiro | 9p | B+R | 117 | 1981-07-15 | Meijin, 6th | League | | 28 | Yamabe Toshiro | 9p | Kobayashi Koichi | 9p | W+0.5 | 255 | 1981-10-22 | Honinbo, 37th | League-entry preliminary, final | | 29 | Yamabe Toshiro | 9p | Kobayashi Koichi | 9p | B+R | 251 | 1982-02-07 | Tokyo Cup, 14th | 1 | | 30 | Kobayashi Koichi | 9p | Yamabe Toshiro | 9p | B+1.5 | 262 | 1982-03-21 | Tokyo Cup, 14th | 2 | | 31 | Yamabe Toshiro | 9p | Kobayashi Koichi | 9p | W+1.5 | 268 | 1982-03-28 | Tokyo Cup, 14th | 3 | | 32 | Yamada Kimio | 6p | Kobayashi Koichi | 9p | W+R | 130 | 1994-09-15 | Tengen, 20th | Semifinal - 1 | | 33 | Yamada Kimio | 7p | Kobayashi Koichi | 9p | B+R | 183 | 1997-06-29 | Judan, 36th | 1-08 | | 34 | Kobayashi Koichi | 9p | Yamada Kimio | 7p | W+2.5 | 247 | 1999-06-28 | Ryusei Cup, 08th | Quaterfinal - 3 | | 35 | Kobayashi Koichi | 9p | Yamada Kimio | 7p | B+R | 119 | 2000-01-01 | Tokyo Cup, 33rd | 3, semifinals | | 36 | Yamada Kimio | 8p | Kobayashi Koichi | 9p | W+R | 188 | 2000-12-10 | NHK Cup, 47th | 3 | | 37 | Kobayashi Koichi | 9p | Yamada Kimio | 8p | B+7 | 277 | 2001-03-29 | Oza, 49th | 1-04 | | 38 | Yamada Kimio | 8p | Kobayashi Koichi | 9p | W+2 | 250 | 2001-08-03 | Judan, 40th | Losers' Section, 1-3 | | 39 | Yamada Kimio | 8p | Kobayashi Koichi | 9p | W+10.5 | 267 | 2003-05-12 | Ryusei Cup, 12th | 1/8 Final - 1 | | 40 | Yamada Kimio | 8p | Kobayashi Koichi | 9p | W+2.5 | 253 | 2003-10-11 | NEC Cup, 23rd | Round 2 | | 41 | Yamada Kimio | 8p | Kobayashi Koichi | 9p | B+R | 233 | 2004-08-29 | Ryusei Cup, 13th | F 8 | | 42 | Yamada Kimio | 9p | Kobayashi Koichi | 9p | B+2.5 | 248 | 2007-07-02 | NHK Cup, 55th | 2 | | 43 | Kobayashi Koichi | 9p | Yamada Kimio | 9p | W+14,5 | 261 | 2012-04-16 | NHK Cup, 60th | 1 | | 44 | Kobayashi Koichi | 9p | Yamada Takuji | 7p | B+R | 113 | 2007-08-23 | Meijin, 33rd, last preliminary tournament | Preliminaries | | 45 | Kobayashi Koichi | 9p | Yamada Takuji | 7p | W+0.5 | 255 | 2008-08-14 | | | | 46 | Kobayashi Koichi | 9p | Yamada Takuji | 8p | W+0.5 | 251 | 2015-05-14 | | | | 47 | Kobayashi Koichi | 9p | Yamada Takuji | 8p | B+R | 231 | 2016-06-02 | | | | 48 | Yamashiro Hiroshi | 6p | Kobayashi Koichi | 8p | B+4 | 252 | 1979-05-10 | Oteai, 1979 | Preliminaries | | 49 | Kobayashi Koichi | 9p | Yamashiro Hiroshi | 6p | B+R | 113 | 1980-01-17 | Meijin, 05th | League, game 05 | | 50 | Yamashiro Hiroshi | 8p | Kobayashi Koichi | 9p | B+1.5 | 259 | 1983-12-22 | Honinbo, 39th | League, game 10 | | 51 | Kobayashi Koichi | 9p | Yamashiro Hiroshi | 9p | W+R | 134 | 1985-04-18 | Honinbo, 40th | League, game 25 | | 52 | Yamashiro Hiroshi | 8p | Kobayashi Koichi | 9p | W+2.5 | 278 | 1985-07-11 | Meijin, 10th | League, game 30 | | 53 | Kobayashi Koichi | 9p | Yamashiro Hiroshi | 9p | W+4.5 | 240 | 1986-04-10 | Honinbo, 41st | League, game 26 | | 54 | Kobayashi Koichi | 9p | Yamashiro Hiroshi | 9p | B+R | 179 | 1986-12-11 | Meijin, 12th | League, game 02 | | 55 | Kobayashi Koichi | 9p | Yamashiro Hiroshi | 9p | W+R | 204 | 1986-12-25 | Honinbo, 42nd | League, game 09 | | 56 | Kobayashi Koichi | 9p | Yamashiro Hiroshi | 9p | B+R | 151 | 1987-02-15 | Haya-go Senshuken, 19th | Semifinal | | 57 | Kobayashi Koichi | 9p | Yamashiro Hiroshi | 9p | B+R | 191 | 1988-02-10 | Honinbo, 43rd | League, game 19 | | 58 | Yamashiro Hiroshi | 9p | Kobayashi Koichi | 9p | B+0.5 | 259 | 1989-01-11 | Honinbo, 44th | League, game 13 | | 59 | Yamashiro Hiroshi | 9p | Kobayashi Koichi | 9p | W+0.5 | 313 | 1991-08-14 | Judan, 30th | Losers' Section, 1-2 | | 60 | Yamashiro Hiroshi | 9p | Kobayashi Koichi | 9p | B+R | 165 | 1992-01-17 | Kisei, 16th | Title match, game 1 | | 61 | Kobayashi Koichi | 9p | Yamashiro Hiroshi | 9p | W+4.5 | 266 | 1992-01-30 | Kisei, 16th | Title match, game 2 | | 62 | Yamashiro Hiroshi | 9p | Kobayashi Koichi | 9p | W+1.5 | 250 | 1992-02-06 | Kisei, 16th | Title match, game 3 | | 63 | Kobayashi Koichi | 9p | Yamashiro Hiroshi | 9p | B+5.5 | 251 | 1992-02-20 | Kisei, 16th | Title match, game 4 | | 64 | Yamashiro Hiroshi | 9p | Kobayashi Koichi | 9p | B+6.5 | 253 | 1992-02-27 | Kisei, 16th | Title match, game 5 | | 65 | Kobayashi Koichi | 9p | Yamashiro Hiroshi | 9p | B+4,5 | 251 | 1992-03-12 | Kisei, 16th | Title match, game 6 | | 66 | Yamashiro Hiroshi | 9p | Kobayashi Koichi | 9p | W+0.5 | 244 | 1992-03-19 | Kisei, 16th | Title match, game 7 | | 67 | Yamashiro Hiroshi | 9p | Kobayashi Koichi | 9p | B+1.5 | 243 | 1992-06-04 | Judan, 31st | 1/8 Final - 5 | | 68 | Yamashiro Hiroshi | 9p | Kobayashi Koichi | 9p | W+R | 198 | 1992-08-12 | Oza, 40th | Semifinal - 1 | | 69 | Yamashiro Hiroshi | 9p | Kobayashi Koichi | 9p | B+R | 167 | 1992-10-01 | Tengen, 19th | Final | | 70 | Kobayashi Koichi | 9p | Yamashiro Hiroshi | 9p | W+1.5 | 258 | 1993-02-10 | Honinbo, 48th | League, game 18 | | 71 | Kobayashi Koichi | 9p | Yamashiro Hiroshi | 9p | B+R | 213 | 1995-04-13 | Honinbo, 50th | League, game 25 | | 72 | Yamashiro Hiroshi | 9p | Kobayashi Koichi | 9p | W+1 | 259 | 1997-06-19 | Kisei, 22nd | Final 9 dan | | 73 | Kobayashi Koichi | 9p | Yamashiro Hiroshi | 9p | B+R | 169 | 2007-04-09 | NHK Cup, 55th | 1 | | 74 | Yamashiro Hiroshi | 9p | Kobayashi Koichi | 9p | B+3.5 | 225 | 2011-09-29 | Kisei, 36th | League | | 75 | Yamashiro Hiroshi | 9p | Kobayashi Koichi | 9p | B+4,5 | 247 | 2013-05-13 | Igo Masters Cup, 3rd | 2 | | 76 | Yamashiro Hiroshi | 9p | Kobayashi Koichi | 9p | W+R | 172 | 2014-05-08 | Igo Masters Cup, 4th | 2 | | 77 | Kobayashi Koichi | 9p | Yamashita Keigo | 9p | W+8.5 | 203 | 2000-07-08 | Gosei, 25th | Title match, game 1 | | 78 | Yamashita Keigo | 6p | Kobayashi Koichi | 9p | B+R | 145 | 2000-07-13 | Gosei, 25th | Title match, game 2 | | 79 | Kobayashi Koichi | 9p | Yamashita Keigo | 6p | B+R | 304 | 2000-07-23 | Gosei, 25th | Title match, game 3 | | 80 | Yamashita Keigo | 6p | Kobayashi Koichi | 9p | W+1.5 | 254 | 2000-08-23 | Gosei, 25th | Title match, game 4 | | 81 | Kobayashi Koichi | 9p | Yamashita Keigo | 7p | W+2.5 | 248 | 2000-08-30 | Gosei, 25th | Title match, game 5 | | 82 | Yamashita Keigo | 9p | Kobayashi Koichi | 9p | B+R | 213 | 2001-06-21 | Judan, 40th | 1-06 | | 83 | Kobayashi Koichi | 9p | Yamashita Keigo | 7p | B+R | 165 | 2001-07-05 | Gosei, 26th | Title match, game 1 | | 84 | Yamashita Keigo | 7p | Kobayashi Koichi | 9p | B+17.5 | 287 | 2001-07-20 | Gosei, 26th | Title match, game 2 | | 85 | Kobayashi Koichi | 9p | Yamashita Keigo | 7p | B+R | 207 | 2001-07-24 | Gosei, 26th | Title match, game 3 | | 86 | Yamashita Keigo | 7p | Kobayashi Koichi | 9p | B+1.5 | 220 | 2001-08-15 | Gosei, 26th | Title match, game 4 | | 87 | Kobayashi Koichi | 9p | Yamashita Keigo | 7p | B+1.5 | 230 | 2001-08-20 | Gosei, 26th | Title match, game 5 | | 88 | Yamashita Keigo | 7p | Kobayashi Koichi | 9p | W+2 | 265 | 2001-12-06 | Judan, 40th | Losers' Section, Semifinal - 2 | | 89 | Yamashita Keigo | 7p | Kobayashi Koichi | 9p | B+R | 171 | 2002-06-13 | Kisei, 27th | League, Group B, game 01 | | 90 | Kobayashi Koichi | 9p | Yamashita Keigo | 7p | W+4.5 | 210 | 2002-12-05 | Honinbo, 58th | League, game 10 | | 91 | Yamashita Keigo | 9p | Kobayashi Koichi | 9p | W+1.5 | 266 | 2003-12-11 | Honinbo, 59th | League, game 10 | | 92 | Kobayashi Koichi | 9p | Yamashita Keigo | 9p | B+R | 227 | 2004-02-21 | NEC Cup, 23rd | Semifinal - 2 | | 93 | Yamashita Keigo | 9p | Kobayashi Koichi | 9p | B+4 | 264 | 2004-04-05 | Gosei, 29th | Quaterfinal - 4 | | 94 | Kobayashi Koichi | 9p | Yamashita Keigo | 9p | W+6.5 | 235 | 2004-09-23 | Judan, 43rd | Losers' Section, 2-3 | | 95 | Kobayashi Koichi | 9p | Yamashita Keigo | 9p | W+0.5 | 299 | 2006-06-15 | Judan, 45th | 1 | | 96 | Yamashita Keigo | 9p | Kobayashi Koichi | 9p | B+R | 203 | 2009-10-08 | Meijin, 35th, last preliminary tournament | | | 97 | Yamazaki Masuo | 7p | Kobayashi Koichi | 8p | W+R | 194 | 1979-06-07 | Oteai, 1979 | | | 98 | Yang Jae-ho | 9p | Kobayashi Koichi | 9p | B+5 | 250 | 1996-10-28 | Samsung Cup, 01st | Quaterfinal - 4 | | 99 | Kobayashi Koichi | 9p | Yashiro Kumiko | 6p | W+3.5 | 230 | 2017-01-12 | | | | 100 | Kobayashi Koichi | 9p | Yasuda Yasutoshi | 9p | B+R | 225 | 2006-07-20 | Gosei, 32nd | Primary tournament A |
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