| # |
Black player |
Rank |
White player |
Rank |
Result |
# moves |
Date |
Event |
Round |
| 1 | Rin Kaiho | 9p | Kobayashi Koichi | 9p | B+3.5 | 242 | 1990-12-10 | Tengen, 16th | Title match, game 4 | | 2 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | W+10.5 | 255 | 1991-02-03 | Kakusei, 14th | Semifinal - 2 | | 3 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | W+0.5 | 319 | 1991-03-28 | Honinbo, 46th | League, game 24 | | 4 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | B+19.5 | 299 | 1991-04-25 | Oza, 39th | 1 | | 5 | Rin Kaiho | 9p | Kobayashi Koichi | 9p | W+2.5 | 276 | 1991-09-12 | Meijin, 16th | Title match, game 1 | | 6 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | W+2.5 | 276 | 1991-09-26 | Meijin, 16th | Title match, game 2 | | 7 | Rin Kaiho | 9p | Kobayashi Koichi | 9p | W+3.5 | 258 | 1991-10-03 | Meijin, 16th | Title match, game 3 | | 8 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | B+5.5 | 241 | 1991-10-17 | Meijin, 16th | Title match, game 4 | | 9 | Rin Kaiho | 9p | Kobayashi Koichi | 9p | W+3.5 | 259 | 1991-10-24 | Meijin, 16th | Title match, game 5 | | 10 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | B+3.5 | 258 | 1991-12-05 | Honinbo, 47th | League, game 09 | | 11 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | B+7.5 | 275 | 1992-04-30 | Oza, 40th | 1/8 Final - 6 | | 12 | Rin Kaiho | 9p | Kobayashi Koichi | 9p | B+R | 101 | 1992-12-03 | Honinbo, 48th | League, game 08 | | 13 | Rin Kaiho | 9p | Kobayashi Koichi | 9p | W+4.5 | 255 | 1993-07-08 | Gosei, 18th | Title match, game 1 | | 14 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | B+R | 197 | 1993-07-22 | Gosei, 18th | Title match, game 2 | | 15 | Rin Kaiho | 9p | Kobayashi Koichi | 9p | W+R | 206 | 1993-08-11 | Gosei, 18th | Title match, game 3 | | 16 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | B+R | 215 | 1993-09-23 | Judan, 32nd | Winners' Section, Semifinal - 1 | | 17 | Rin Kaiho | 9p | Kobayashi Koichi | 9p | W+6.5 | 240 | 1994-02-10 | Judan, 32nd | Final | | 18 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | W+R | 226 | 1994-06-30 | Oza, 42nd | Quaterfinal - 3 | | 19 | Rin Kaiho | 9p | Kobayashi Koichi | 9p | W+6.5 | 314 | 1994-07-08 | Gosei, 19th | Title match, game 1 | | 20 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | W+5.5 | 253 | 1994-07-16 | Gosei, 19th | Title match, game 2 | | 21 | Rin Kaiho | 9p | Kobayashi Koichi | 9p | B+1.5 | 249 | 1994-07-28 | Gosei, 19th | Title match, game 3 | | 22 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | W+5.5 | 240 | 1994-08-10 | Gosei, 19th | Title match, game 4 | | 23 | Rin Kaiho | 9p | Kobayashi Koichi | 9p | W+2.5 | 281 | 1994-09-08 | Meijin, 19th | Title match, game 1 | | 24 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | B+R | 231 | 1994-09-22 | Meijin, 19th | Title match, game 2 | | 25 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | B+5.5 | 274 | 1994-09-29 | Kisei, 19th | Main Knockout, Semifinal - 1 | | 26 | Rin Kaiho | 9p | Kobayashi Koichi | 9p | W+R | 200 | 1994-10-06 | Meijin, 19th | Title match, game 3 | | 27 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | B+3.5 | 261 | 1994-10-13 | Meijin, 19th | Title match, game 4 | | 28 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | B+4,5 | 237 | 1995-07-12 | Oza, 43th | Quaterfinal - 4 | | 29 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | B+4,5 | 242 | 1995-08-31 | Tengen, 21st | Quaterfinal - 3 | | 30 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | W+R | 108 | 1996-02-08 | Meijin, 21st | League, game 09 | | 31 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | W+2.5 | 227 | 1996-07-25 | Tengen, 22nd | Quaterfinal - 3 | | 32 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | B+7.5 | 300 | 1997-04-19 | NEC Cup, 17th | Round 1 | | 33 | Rin Kaiho | 9p | Kobayashi Koichi | 9p | W+R | 160 | 1997-06-12 | Meijin, 22nd | League, game 27 | | 34 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | B+R | 183 | 1998-01-08 | Meijin, 23rd | League, game 07 | | 35 | Rin Kaiho | 9p | Kobayashi Koichi | 9p | W+R | 238 | 1998-07-16 | Tengen, 24th | Quaterfinal - 4 | | 36 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | B+1.5 | 255 | 1999-01-30 | NEC Cup, 18th | Semifinal - 1 | | 37 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | B+R | 282 | 2000-04-17 | Ryusei Cup, 09th | Block B, Game 23 | | 38 | Rin Kaiho | 9p | Kobayashi Koichi | 9p | W+R | 220 | 2001-08-30 | Judan, 40th | Losers' Section, 2-1 | | 39 | Rin Kaiho | 9p | Kobayashi Koichi | 9p | W+R | 210 | 2003-01-25 | NHK Cup, 51st | 1/8 Final | | 40 | Kobayashi Koichi | 9p | Rin Kaiho | 9p | B+R | 193 | 2003-03-13 | Honinbo, 58th | League, game 23 | | 41 | Rin Kaiho | 9p | Kobayashi Koichi | 9p | W+4.5 | 279 | 2010-11-04 | | | | 42 | Rin Kaiho | 9p | Kobayashi Koichi | 9p | W+R | 208 | 2011-03-24 | Igo Masters Cup, 1st | 2 | | 43 | Rin Kanketsu | 6p | Kobayashi Koichi | 9p | B+14.5 | 208 | 2006-06-22 | Agon Cup, 13th | Last primary tournament, Final | | 44 | Rin Shien | 6p | Kobayashi Koichi | 9p | B+9.5 | 244 | 2006-04-27 | Honinbo, 62nd | Last primary tournament | | 45 | Kobayashi Koichi | 9p | Rin Shien | 7p | W+R | 162 | 2014-10-16 | Judan, 53rd | 1st round | | 46 | Ryu Shikun | 6p | Kobayashi Koichi | 9p | B+R | 165 | 1994-10-20 | Tengen, 20th | Final | | 47 | Kobayashi Koichi | 9p | Ryu Shikun | 6p | W+R | 184 | 1995-07-20 | Judan, 34th | Winners' Section, Quaterfinal - 1 | | 48 | Ryu Shikun | 6p | Kobayashi Koichi | 9p | B+1.5 | 190 | 1995-11-01 | Tengen, 21st | Title match, game 1 | | 49 | Kobayashi Koichi | 9p | Ryu Shikun | 6p | B+R | 151 | 1995-11-23 | Tengen, 21st | Title match, game 2 | | 50 | Ryu Shikun | 6p | Kobayashi Koichi | 9p | W+4.5 | 253 | 1995-11-30 | Tengen, 21st | Title match, game 3 | | 51 | Ryu Shikun | 6p | Kobayashi Koichi | 9p | B+R | 272 | 1995-12-14 | Tengen, 21st | Title match, game 4 | | 52 | Kobayashi Koichi | 9p | Ryu Shikun | 6p | W+0.5 | 227 | 1995-12-21 | Tengen, 21st | Title match, game 5 | | 53 | Ryu Shikun | 7p | Kobayashi Koichi | 9p | B+2.5 | 243 | 1996-09-12 | Oza, 44th | Final | | 54 | Ryu Shikun | 7p | Kobayashi Koichi | 9p | W+8.5 | 218 | 1997-04-24 | Meijin, 22nd | League, game 20 | | 55 | Kobayashi Koichi | 9p | Ryu Shikun | 7p | B+R | 233 | 1998-04-23 | Meijin, 23rd | League, game 19 | | 56 | Kobayashi Koichi | 9p | Ryu Shikun | 7p | B+R | 213 | 1998-10-01 | Tengen, 24th | Final | | 57 | Ryu Shikun | 7p | Kobayashi Koichi | 9p | B+5.5 | 263 | 1999-03-29 | Meijin, 24th | League, game 16 | | 58 | Ryu Shikun | 7p | Kobayashi Koichi | 9p | W+R | 200 | 2000-01-17 | Fujitsu Cup, 13th | Japanese qualifier | | 59 | Ryu Shikun | 7p | Kobayashi Koichi | 9p | B+R | 177 | 2000-05-18 | Meijin, 25th | League, game 23 | | 60 | Ryu Shikun | 7p | Kobayashi Koichi | 9p | B+0.5 | 231 | 2000-11-09 | Tengen, 26th | Title match, game 1 | | 61 | Kobayashi Koichi | 9p | Ryu Shikun | 7p | W+0.5 | 256 | 2000-11-16 | Tengen, 26th | Title match, game 2 | | 62 | Ryu Shikun | 7p | Kobayashi Koichi | 9p | B+0.5 | 245 | 2000-11-30 | Tengen, 26th | Title match, game 3 | | 63 | Kobayashi Koichi | 9p | Ryu Shikun | 7p | B+3 | 239 | 2001-05-03 | Gosei, 26th | Semifinal - 1 | | 64 | Ryu Shikun | 7p | Kobayashi Koichi | 9p | W+R | 232 | 2003-02-27 | Honinbo, 58th | League, game 20 | | 65 | Kobayashi Koichi | 9p | Ryu Shikun | 9p | B+4,5 | 233 | 2007-01-11 | Tengen, 33rd | 1 | | 66 | Ryu Shikun | 9p | Kobayashi Koichi | 9p | B+R | 133 | 2010-01-28 | Tengen, 36th | 1 | | 67 | Ryu Shikun | 9p | Kobayashi Koichi | 9p | W+R | 234 | 2010-02-18 | | | | 68 | Ryu Shikun | 9p | Kobayashi Koichi | 9p | W+7.5 | 238 | 2010-08-05 | Gosei, 36th, preliminary tournament A | | | 69 | Ryu Shikun | 9p | Kobayashi Koichi | 9p | W+R | 166 | 2011-06-09 | Kisei, 36th | League | | 70 | Saijo Masataka | 6p | Kobayashi Koichi | 6p | B+3 | 243 | 1973-04-19 | Oteai, 1973 | | | 71 | Kobayashi Koichi | 9p | Sakai Hideyuki | 7p | B+0.5 | 279 | 2005-04-16 | Pandanet Open Internet World Go Championship, 1st | Quaterfinal | | 72 | Sakai Hideyuki | 8p | Kobayashi Koichi | 9p | B+5.5 | 296 | 2011-12-22 | Tengen, 38th | 1 | | 73 | Sakai Josho | 7p | Kobayashi Koichi | 6p | W+1.5 | 255 | 1974-09-12 | Prime Minister's Cup, 18th | Semifinal - 2 | | 74 | Sakai Maki | 6p | Kobayashi Koichi | 9p | B+4,5 | 258 | 1998-12-24 | Meijin, 24th | League, game 04 | | 75 | Kobayashi Koichi | 6p | Sakai Michiharu | 8p | B+11.5 | 237 | 1973-11-01 | Pro Best Ten, 11th | 1-05 | | 76 | Sakai Michiharu | 8p | Kobayashi Koichi | 8p | W+R | 150 | 1978-04-06 | Tengen, 04th | 1-16 | | 77 | Sakai Takeshi | 6p | Kobayashi Koichi | 6p | W+R | 176 | 1973-05-06 | Prime Minister's Cup, 17th | Preliminaries | | 78 | Kobayashi Koichi | 7p | Sakai Takeshi | 7p | W+7.5 | 263 | 1975-08-28 | Oza, 23rd | 2-3 | | 79 | Kobayashi Koichi | 8p | Sakai Takeshi | 8p | B+R | 113 | 1979-01-11 | Honinbo, 34th | League, game 04 | | 80 | Kobayashi Koichi | 9p | Sakai Takeshi | 8p | W+0.5 | 243 | 1979-06-14 | Kisei, 04th | Final 8 dan | | 81 | Kobayashi Koichi | 9p | Sakai Takeshi | 9p | B+R | 85 | 1988-05-19 | Oza, 36th | 1-07 | | 82 | Sakai Takeshi | 9p | Kobayashi Koichi | 9p | W+4 | 244 | 1990-04-19 | Tengen, 16th | 1/8 Final - 2 | | 83 | Sakai Takeshi | 9p | Kobayashi Koichi | 9p | W+R | 144 | 2006-07-13 | Judan, 45th | 1 | | 84 | Sakai Takeshi | 9p | Kobayashi Koichi | 9p | W+R | 176 | 2007-04-19 | Judan, 46th | Last primary tournament, Final | | 85 | Kobayashi Koichi | 9p | Sakai Takeshi | 9p | W+5.5 | 220 | 2010-11-25 | | | | 86 | Kobayashi Koichi | 7p | Sakata Eio | 9p | B+R | 185 | 1974-11-28 | Pro Best Ten, 12th | Round 2 | | 87 | Kobayashi Koichi | 7p | Sakata Eio | 9p | B+R | 97 | 1975-12-01 | | | | 88 | Kobayashi Koichi | 8p | Sakata Eio | 9p | W+R | 182 | 1979-05-03 | Honinbo, 34th | League, game 26 | | 89 | Sakata Eio | 9p | Kobayashi Koichi | 9p | W+1 | 300 | 1979-12-04 | Judan, 19th | Losers' Section, Semifinal | | 90 | Kobayashi Koichi | 9p | Sakata Eio | 9p | W+0.5 | 274 | 1979-12-15 | JAA, 2nd | Round 2 | | 91 | Kobayashi Koichi | 9p | Sakata Eio | 9p | W+7 | 269 | 1980-01-18 | Haya-go Senshuken, 13th | Semifinal | | 92 | Sakata Eio | 9p | Kobayashi Koichi | 9p | B+R | 155 | 1980-01-31 | Honinbo, 35th | League, game 10 | | 93 | Sakata Eio | 9p | Kobayashi Koichi | 9p | W+R | 234 | 1980-05-22 | Meijin, 05th | League, game 24 | | 94 | Kobayashi Koichi | 9p | Sakata Eio | 9p | B+7.5 | 288 | 1980-12-18 | Meijin, 06th | League | | 95 | Sakata Eio | 9p | Kobayashi Koichi | 9p | W+9 | 237 | 1981-12-24 | Honinbo, 37th | League, game 07 | | 96 | Kobayashi Koichi | 9p | Sakata Eio | 9p | W+Time | 156 | 1982-07-15 | Meijin, 07th | League, game 28 | | 97 | Kobayashi Koichi | 9p | Sakata Eio | 9p | B+R | 203 | 1982-07-25 | Judan, 21st | 1/8 Final - 7 | | 98 | Kobayashi Koichi | 9p | Sakata Eio | 9p | B+R | 157 | 1982-12-16 | Honinbo, 38th | League, game 13 | | 99 | Sakata Eio | 9p | Kobayashi Koichi | 9p | B+10 | 275 | 1983-03-10 | Meijin, 08th | League, game 14 | | 100 | Kobayashi Koichi | 9p | Sakata Eio | 9p | W+10.5 | 268 | 1983-11-17 | Honinbo, 39th | League, game 08 |
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