| # |
Black player |
Rank |
White player |
Rank |
Result |
# moves |
Date |
Event |
Round |
| 1 | O Meien | 9p | Kobayashi Koichi | 9p | B+2.5 | 238 | 1986-01-09 | Honinbo, 41st | League, game 12 | | 2 | Kobayashi Koichi | 9p | O Meien | 7p | W+1 | 242 | 1987-06-25 | Judan, 26th | 1-05 | | 3 | Kobayashi Koichi | 9p | O Meien | 8p | B+5.5 | 282 | 1991-11-30 | NEC Cup, 11th | Quaterfinal | | 4 | O Meien | 9p | Kobayashi Koichi | 9p | W+0.5 | 248 | 1994-08-04 | Tengen, 20th | Quaterfinal - 1 | | 5 | O Meien | 9p | Kobayashi Koichi | 9p | B+6.5 | 219 | 1996-08-01 | Meijin, 21st | League, game 34 | | 6 | Kobayashi Koichi | 9p | O Meien | 9p | W+4 | 285 | 1997-06-26 | Oza, 45th | Quaterfinal - 2 | | 7 | O Meien | 9p | Kobayashi Koichi | 9p | W+2.5 | 233 | 2000-01-06 | Meijin, 25th | League, game 07 | | 8 | Kobayashi Koichi | 9p | O Meien | 9p | B+2 | 302 | 2001-05-30 | Oza, 49th | Quaterfinal - 3 | | 9 | O Meien | 9p | Kobayashi Koichi | 9p | B+R | 181 | 2001-08-25 | NEC Cup, 21st | 1 | | 10 | Kobayashi Koichi | 9p | O Meien | 9p | W+7 | 270 | 2002-01-10 | Judan, 40th | Losers' Section, Final | | 11 | Kobayashi Koichi | 9p | O Meien | 9p | W+R | 202 | 2002-06-06 | Tengen, 28th | Quaterfinal - 2 | | 12 | Kobayashi Koichi | 9p | O Meien | 9p | B+6 | 278 | 2002-09-16 | Ryusei Cup, 11th | Final | | 13 | Kobayashi Koichi | 9p | O Meien | 9p | W+6.5 | 256 | 2002-10-17 | Honinbo, 58th | League, game 04 | | 14 | Kobayashi Koichi | 9p | O Meien | 9p | B+5.5 | 242 | 2003-10-02 | Honinbo, 59th | League, game 01 | | 15 | O Meien | 9p | Kobayashi Koichi | 9p | B+1.5 | 271 | 2008-11-20 | Tengen, 35th | preliminary tournament A final | | 16 | O Meien | 9p | Kobayashi Koichi | 9p | W+R | 130 | 2010-03-04 | Ryusei, 19th | block-F | | 17 | O Meien | 9p | Kobayashi Koichi | 9p | B+5.5 | 256 | 2010-11-11 | Tengen, 37th, preliminary tournament A | Final | | 18 | O Meien | 9p | Kobayashi Koichi | 9p | W+0.5 | 251 | 2011-01-20 | Kisei, 36th, last preliminary tournament | | | 19 | Kobayashi Koichi | 9p | O Meien | 9p | W+4.5 | 225 | 2011-07-28 | | | | 20 | O Meien | 9p | Kobayashi Koichi | 9p | W+R | 194 | 2014-03-20 | Igo Masters Cup, 4th | 1 | | 21 | O Meien | 9p | Kobayashi Koichi | 9p | W+R | 216 | 2014-09-04 | Judan, 53rd, last preliminary tournament | Final | | 22 | O Rissei | 6p | Kobayashi Koichi | 9p | W+R | 170 | 1982-03-25 | Gosei, 07th | Quaterfinal - 1 | | 23 | Kobayashi Koichi | 9p | O Rissei | 7p | W+4 | 250 | 1983-05-26 | Tengen, 09th | 1/8 Final - 4 | | 24 | Kobayashi Koichi | 9p | O Rissei | 7p | B+5.5 | 281 | 1985-05-09 | Oza, 33rd | Final | | 25 | Kobayashi Koichi | 9p | O Rissei | 8p | W+5 | 280 | 1986-10-16 | Honinbo, 42nd | League, game 02 | | 26 | Kobayashi Koichi | 9p | O Rissei | 8p | B+3 | 307 | 1988-08-21 | Ing Cup, 1st | Round 2 | | 27 | Kobayashi Koichi | 9p | O Rissei | 9p | B+3.5 | 264 | 1991-12-19 | Judan, 30th | Losers' Section, Semifinal - 1 | | 28 | O Rissei | 9p | Kobayashi Koichi | 9p | W+1.5 | 288 | 1993-11-18 | Judan, 32nd | Winners' Section, Final | | 29 | O Rissei | 9p | Kobayashi Koichi | 9p | B+R | 219 | 1994-01-01 | Professional Pair Go Tournament | 1 | | 30 | Kobayashi Koichi | 9p | O Rissei | 9p | W+2.5 | 298 | 1994-11-03 | Judan, 33rd | Losers' Section, 2-4 | | 31 | O Rissei | 9p | Kobayashi Koichi | 9p | B+4,5 | 242 | 1995-01-12 | Honinbo, 50th | League, game 13 | | 32 | Kobayashi Koichi | 9p | O Rissei | 9p | W+1.5 | 251 | 1995-09-14 | Oza, 43th | Final | | 33 | O Rissei | 9p | Kobayashi Koichi | 9p | B+12.5 | 277 | 1995-11-03 | NEC Cup, 15th | Quaterfinal - 3 | | 34 | Kobayashi Koichi | 9p | O Rissei | 9p | B+3.5 | 257 | 1996-05-02 | Meijin, 21st | League, game 20 | | 35 | Kobayashi Koichi | 9p | O Rissei | 9p | W+0.5 | 248 | 1996-05-06 | Gosei, 21st | 1/8 Final - 8 | | 36 | O Rissei | 9p | Kobayashi Koichi | 9p | W+R | 128 | 1996-06-20 | Tengen, 22nd | 1/8 Final - 7 | | 37 | O Rissei | 9p | Kobayashi Koichi | 9p | W+R | 246 | 1996-09-05 | Judan, 35th | Winners' Section, Quaterfinal - 4 | | 38 | O Rissei | 9p | Kobayashi Koichi | 9p | B+7.5 | 233 | 1997-03-16 | NHK Cup, 44th | Final | | 39 | Kobayashi Koichi | 9p | O Rissei | 9p | W+11.5 | 277 | 1997-05-01 | Meijin, 22nd | League, game 23 | | 40 | O Rissei | 9p | Kobayashi Koichi | 9p | W+4.5 | 264 | 1997-08-02 | Fujitsu Cup, 10th | Final | | 41 | Kobayashi Koichi | 9p | O Rissei | 9p | B+R | 187 | 1997-08-11 | Meijin, 22nd | Challengers' playoff | | 42 | Kobayashi Koichi | 9p | O Rissei | 9p | B+7 | 282 | 1997-10-26 | KYB98-227 Cup, 30th | Final | | 43 | Kobayashi Koichi | 9p | O Rissei | 9p | W+13 | 191 | 1998-06-26 | Meijin, 23rd | League, game 28 | | 44 | O Rissei | 9p | Kobayashi Koichi | 9p | W+R | 184 | 1999-03-06 | NEC Cup, 18th | Final | | 45 | Kobayashi Koichi | 9p | O Rissei | 9p | B+1.5 | 266 | 1999-07-15 | Meijin, 24th | League, game 31 | | 46 | O Rissei | 9p | Kobayashi Koichi | 9p | B+R | 257 | 2000-01-31 | Kakusei, 22nd | Semifinal - 1 | | 47 | Kobayashi Koichi | 9p | O Rissei | 9p | W+13.5 | 316 | 2000-08-03 | Meijin, 25th | League, game 36 | | 48 | Kobayashi Koichi | 9p | O Rissei | 9p | B+4,5 | 269 | 2000-11-02 | Kakusei, 23rd | Semifinal - 1 | | 49 | O Rissei | 9p | Kobayashi Koichi | 9p | W+2.5 | 236 | 2001-03-03 | Judan, 39th | Title match, game 1 | | 50 | Kobayashi Koichi | 9p | O Rissei | 9p | W+0.5 | 238 | 2001-03-22 | Judan, 39th | Title match, game 2 | | 51 | O Rissei | 9p | Kobayashi Koichi | 9p | W+5.5 | 245 | 2001-04-05 | Judan, 39th | Title match, game 3 | | 52 | Kobayashi Koichi | 9p | O Rissei | 9p | W+2.5 | 250 | 2001-04-20 | Judan, 39th | Title match, game 4 | | 53 | O Rissei | 9p | Kobayashi Koichi | 9p | B+R | 177 | 2001-04-26 | Judan, 39th | Title match, game 5 | | 54 | Kobayashi Koichi | 9p | O Rissei | Judan | B+R | 181 | 2004-03-04 | Meijin, 29th | League, game 14 | | 55 | O Rissei | 9p | Kobayashi Koichi | 9p | B+2.5 | 254 | 2004-03-18 | Honinbo, 59th | League, game 24 | | 56 | Kobayashi Koichi | 9p | O Rissei | 9p | W+R | 220 | 2006-10-22 | NHK Cup, 54th | 2 | | 57 | O Rissei | 9p | Kobayashi Koichi | 9p | W+2.5 | 287 | 2007-10-18 | Tengen, 34th, primary tournament A | Final | | 58 | O Rissei | 9p | Kobayashi Koichi | 9p | W+0.5 | 252 | 2012-03-15 | Igo Masters Cup, 2nd | 1 | | 59 | Kobayashi Koichi | 9p | O Rissei | 9p | W+2.5 | 245 | 2012-04-26 | | | | 60 | O Rissei | 9p | Kobayashi Koichi | 9p | W+0.5 | 273 | 2013-03-14 | Igo Masters Cup, 3rd | 1 | | 61 | O Rissei | 9p | Kobayashi Koichi | 9p | B+10.5 | 267 | 2014-01-09 | Tengen, 40th, preliminary tournament A | Final | | 62 | O Rissei | 9p | Kobayashi Koichi | 9p | W+0.5 | 300 | 2016-04-07 | Igo Masters Cup, 6th | 1st round | | 63 | Obuchi Morito | 9p | Kobayashi Koichi | 9p | B+3.5 | 237 | 2008-02-28 | | | | 64 | Kobayashi Koichi | 9p | Obuchi Morito | 9p | B+11.5 | 212 | 2009-03-12 | | | | 65 | Obuchi Morito | 9p | Kobayashi Koichi | 9p | W+R | 196 | 2012-10-04 | | | | 66 | Kobayashi Koichi | 5p | Oeda Yusuke | 7p | B+R | 175 | 1971-11-18 | Oteai, 1971 | | | 67 | Ogaki Yusaku | 7p | Kobayashi Koichi | 9p | W+R | 182 | 1998-07-30 | Kisei, 23rd | 1-03 | | 68 | Ogaki Yusaku | 9p | Kobayashi Koichi | 9p | W+7.5 | 287 | 2009-04-30 | Honinbo, 65th, last preliminary tournament | | | 69 | Kobayashi Koichi | 9p | Ogaki Yusaku | 9p | B+R | 137 | 2012-11-29 | | | | 70 | Kobayashi Koichi | 9p | Ogaki Yusaku | 9p | W+4.5 | 246 | 2016-07-14 | | | | 71 | Kobayashi Koichi | 9p | Ogata Masaki | 7p | B+1 | 255 | 1990-09-19 | Judan, 29th | Losers' Section, 3-1 | | 72 | Ogata Masaki | 8p | Kobayashi Koichi | 9p | B+R | 169 | 1991-06-13 | Judan, 30th | 1-01 | | 73 | Kobayashi Koichi | 9p | Ogata Masaki | 9p | W+4.5 | 267 | 2005-06-12 | NHK Cup, 53rd | 1 | | 74 | Ohira Shuzo | 9p | Kobayashi Koichi | 7p | B+R | 173 | 1976-07-10 | Kisei, 01st | Top Playesr Section,1 | | 75 | Kobayashi Koichi | 8p | Ohira Shuzo | 9p | B+R | 187 | 1977-09-01 | Oza, 25th | 2-3 | | 76 | Kobayashi Koichi | 9p | Ohira Shuzo | 9p | B+R | 109 | 1979-05-29 | Judan, 19th | 1-04 | | 77 | Kobayashi Koichi | 9p | Ohira Shuzo | 9p | B+7.5 | 299 | 1985-03-14 | Meijin, 10th | League | | 78 | Ohira Shuzo | 9p | Kobayashi Koichi | 9p | B+R | 155 | 1987-12-03 | Meijin, 13th | League, game 01 | | 79 | Ohira Shuzo | 9p | Kobayashi Koichi | 9p | W+R | 190 | 1988-09-06 | Judan, 27th | 1-07 | | 80 | Kobayashi Koichi | 9p | Ohira Shuzo | 9p | B+R | 205 | 1990-09-06 | Tengen, 16th | Semifinal - 1 | | 81 | Kobayashi Koichi | 9p | Okada Yumiko | 6p | B+R | 177 | 2007-05-10 | | | | 82 | Okubo Ichigen | 9p | Kobayashi Koichi | 4p | B+R | 179 | 1969-05-29 | Honinbo, 25th | 2nd stage of Preliminaries | | 83 | Okubo Ichigen | 9p | Kobayashi Koichi | 7p | W+1 | 247 | 1976-06-17 | Tengen, 02nd | 2-4 | | 84 | Onishi Ryuhei | 2p | Kobayashi Koichi | 9p | B+0.5 | 208 | 2016-09-15 | Tengen, 43rd, preliminary tournament A | | | 85 | Ono Yutaka | 4p | Kobayashi Koichi | 5p | W+R | 206 | 1971-06-09 | Oteai, 1971 | | | 86 | Osawa Kenro | 1p ? | Kobayashi Koichi | 9p | W+R | 270 | 2007-12-03 | Japanese Yugen Cup, 1st | | | 87 | Ota Seidou | 9p | Kobayashi Koichi | 9p | W+R | 146 | 1988-04-14 | Gosei, 13th | Round 3-3 | | 88 | Otake Hideo | 7p | Kobayashi Koichi | 7p | W+7.5 | 209 | 1975-07-31 | Honinbo, 31st | Preliminaries, Stage 2nd | | 89 | Kobayashi Koichi | 8p | Otake Hideo | 9p | W+0.5 | 261 | 1977-11-03 | Kisei, 02nd | Quaterfinal - 4 | | 90 | Kobayashi Koichi | 8p | Otake Hideo | 9p | B+R | 217 | 1978-01-12 | Honinbo, 33rd | League, game 09 | | 91 | Kobayashi Koichi | 8p | Otake Hideo | 9p | W+0.5 | 265 | 1978-04-27 | Gosei, 03rd | League, game 02 | | 92 | Kobayashi Koichi | 9p | Otake Hideo | 9p | W+6.5 | 328 | 1981-03-26 | Meijin, 06th | League | | 93 | Otake Hideo | 9p | Kobayashi Koichi | 9p | B+2 | 232 | 1982-01-21 | Meijin, 07th | League, game 08 | | 94 | Kobayashi Koichi | 9p | Otake Hideo | 9p | B+R | 227 | 1982-04-11 | Kisei, 07th | Challengers' Quarter-Final | | 95 | Otake Hideo | 9p | Kobayashi Koichi | 9p | B+R | 111 | 1982-10-21 | Judan, 21st | Winners' Section, Semifinal - 2 | | 96 | Kobayashi Koichi | 9p | Otake Hideo | 9p | B+R | 115 | 1982-11-05 | Shusai Cup, sponsored by Warner-Pioneer, for top 8 Nihon Ki-in professionals | Semifinal - 1 | | 97 | Otake Hideo | 9p | Kobayashi Koichi | 9p | B+R | 125 | 1983-01-20 | Meijin, 08th | 7 | | 98 | Kobayashi Koichi | 9p | Otake Hideo | 9p | W+5 | 196 | 1983-03-03 | Oza, 31st | 3rd Preliminary Round - 4 | | 99 | Otake Hideo | 9p | Kobayashi Koichi | 9p | W+R | 140 | 1984-02-02 | Meijin, 09th | League, game 09 | | 100 | Otake Hideo | 9p | Kobayashi Koichi | 9p | B+R | 135 | 1984-08-23 | Meijin, 09th | Challengers' playoff |
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