Games Between Two Players
Kobayashi Koichi (52 win; 30 loss) vs. Rin Kaiho
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2018-07-01] Shaoxing World Veterans Tournament, round 1
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+R |  |
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| [2011-03-24] 1st Japanese Igo Masters Cup, round 2
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| Rin Kaiho 9p | Kobayashi Koichi 9p | W+R | |
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| [2010-11-04] 59th Japanese Oza, preliminary
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| Rin Kaiho 9p | Kobayashi Koichi 9p | W+4.5 | |
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| [2004-01-25] 51st Japanese NHK Cup, round 3
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| Rin Kaiho 9p | Kobayashi Koichi 9p | W+R | |
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| [2003-03-13] 58th Japanese Honinbo, league
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+R | |
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| [2001-08-30] 40th Japanese Judan, loser section round 2
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| Rin Kaiho 9p | Kobayashi Koichi 9p | W+R | |
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| [2000-04-17] 9th Japanese Ryusei, group stage
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+0.5 | |
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| [1999-01-30] 18th Japanese NEC Cup, semi-final
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+1.5 | |
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| [1998-07-16] 24th Japanese Tengen, round 3
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| Rin Kaiho 9p | Kobayashi Koichi 9p | W+R | |
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| [1998-01-08] 23rd Japanese Meijin, league
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+R | |
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| [1997-06-12] 22nd Japanese Meijin, league
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| Rin Kaiho 9p | Kobayashi Koichi 9p | W+R | |
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| [1997-04-19] 17th Japanese NEC Cup, round 1
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+7.5 | |
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| [1996-07-25] 22nd Japanese Tengen, round 3
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| Kobayashi Koichi 9p | Rin Kaiho 9p | W+2.5 | |
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| [1996-02-08] 21st Japanese Meijin, league
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| Kobayashi Koichi 9p | Rin Kaiho 9p | W+R | |
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| [1995-08-31] 21st Japanese Tengen, round 3
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+4.5 | |
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| [1995-07-12] 43rd Japanese Oza, round 2
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+4.5 | |
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| [1994-10-12] 19th Japanese Meijin, title match #4
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+3.5 | |
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| [1994-10-05] 19th Japanese Meijin, title match #3
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| Rin Kaiho 9p | Kobayashi Koichi 9p | W+R | |
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| [1994-09-29] 19th Japanese Kisei, semi-final
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+5.5 | |
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| [1994-09-21] 19th Japanese Meijin, title match #2
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+R | |
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| [1994-09-07] 19th Japanese Meijin, title match #1
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| Rin Kaiho 9p | Kobayashi Koichi 9p | W+2.5 | |
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| [1994-08-10] 19th Japanese Gosei, title match #4
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| Kobayashi Koichi 9p | Rin Kaiho 9p | W+5.5 | |
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| [1994-07-28] 19th Japanese Gosei, title match #3
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| Rin Kaiho 9p | Kobayashi Koichi 9p | B+1.5 | |
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| [1994-07-16] 19th Japanese Gosei, title match #2
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| Kobayashi Koichi 9p | Rin Kaiho 9p | W+5.5 | |
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| [1994-07-08] 19th Japanese Gosei, title match #1
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| Rin Kaiho 9p | Kobayashi Koichi 9p | W+6.5 | |
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| [1994-06-30] 42nd Japanese Oza, round 2
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| Kobayashi Koichi 9p | Rin Kaiho 9p | W+R | |
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| [1994-02-10] 32nd Japanese Judan, challenger decision match
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| Rin Kaiho 9p | Kobayashi Koichi 9p | W+6.5 | |
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| [1993-09-23] 32nd Japanese Judan, winner section semi-final
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+R | |
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| [1993-08-11] 18th Japanese Gosei, title match #3
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| Rin Kaiho 9p | Kobayashi Koichi 9p | W+R | |
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| [1993-07-22] 18th Japanese Gosei, title match #2
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+R | |
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| [1993-07-08] 18th Japanese Gosei, title match #1
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| Rin Kaiho 9p | Kobayashi Koichi 9p | W+4.5 | |
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| [1992-12-03] 48th Japanese Honinbo, league
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| Rin Kaiho 9p | Kobayashi Koichi 9p | B+R | |
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| [1992-04-30] 40th Japanese Oza, round 1
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+7.5 | |
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| [1991-12-05] 47th Japanese Honinbo, league
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+3.5 | |
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| [1991-11-03] 14th Japanese Kakusei, semi-final
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| Kobayashi Koichi 9p | Rin Kaiho 9p | W+10.5 | |
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| [1991-10-23] 16th Japanese Meijin, title match #5
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| Rin Kaiho 9p | Kobayashi Koichi 9p | W+3.5 | |
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| [1991-10-16] 16th Japanese Meijin, title match #4
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+5.5 | |
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| [1991-10-02] 16th Japanese Meijin, title match #3
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| Rin Kaiho 9p | Kobayashi Koichi 9p | W+3.5 | |
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| [1991-09-25] 16th Japanese Meijin, title match #2
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| Kobayashi Koichi 9p | Rin Kaiho 9p | W+2.5 | |
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| [1991-09-11] 16th Japanese Meijin, title match #1
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| Rin Kaiho 9p | Kobayashi Koichi 9p | W+2.5 | |
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| [1991-04-25] 39th Japanese Oza, round 1
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+19.5 | |
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| [1991-03-28] 46th Japanese Honinbo, league
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| Kobayashi Koichi 9p | Rin Kaiho 9p | W+0.5 | |
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| [1990-12-10] 16th Japanese Tengen, title match #4
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| Rin Kaiho 9p | Kobayashi Koichi 9p | B+3.5 | |
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| [1990-11-29] 16th Japanese Tengen, title match #3
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| Kobayashi Koichi 9p | Rin Kaiho 9p | W+R | |
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| [1990-11-23] 16th Japanese Tengen, title match #2
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| Rin Kaiho 9p | Kobayashi Koichi 9p | B+0.5 | |
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| [1990-11-01] 16th Japanese Tengen, title match #1
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+R | |
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| [1990-07-07] 3rd Fujitsu Cup, semi-final
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| Rin Kaiho 9p | Kobayashi Koichi 9p | B+2.5 | |
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| [1989-12-25] 45th Japanese Honinbo, league
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+1.5 | |
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| [1989-10-21] 9th Japanese NEC Cup, round 2
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| Rin Kaiho 9p | Kobayashi Koichi 9p | B+7.5 | |
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| [1989-10-09] 12th Japanese Kakusei, round 2
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| Rin Kaiho 9p | Kobayashi Koichi 9p | B+4.5 | |
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| [1988-08-31] 36th Japanese Oza, semi-final
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+1.5 | |
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| [1988-08-15] 13th Japanese Meijin, challenger play-off
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+16.5 | |
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| [1988-06-16] 13th Japanese Meijin, league
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| Rin Kaiho 9p | Kobayashi Koichi 9p | W+4.5 | |
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| [1987-10-15] 43rd Japanese Honinbo, league
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+R | |
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| [1987-05-07] 12th Japanese Meijin, league
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| Rin Kaiho 9p | Kobayashi Koichi 9p | B+R | |
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| [1987-03-10] 42nd Japanese Honinbo, league
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+R | |
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| [1987-03-01] 34th Japanese NHK Cup, round 4
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| Rin Kaiho 9p | Kobayashi Koichi 9p | B+12.5 | |
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| [1986-03-19] 41st Japanese Honinbo, league
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| Rin Kaiho 9p | Kobayashi Koichi 9p | W+R | |
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| [1985-09-22] 11th Japanese Tengen, semi-final
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| Rin Kaiho 9p | Kobayashi Koichi 9p | W+1.5 | |
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| [1985-02-16] 4th Japanese NEC Cup, semi-final
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+3.5 | |
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| [1985-01-24] 10th Japanese Meijin, league
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+R | |
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| [1984-01-19] 9th Japanese Meijin, league
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+2.5 | |
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| [1983-07-21] 8th Japanese Meijin, league
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| Kobayashi Koichi 9p | Rin Kaiho 9p | W+9.5 | |
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| [1983-05-02] 38th Japanese Honinbo, challenger decision match
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| Rin Kaiho 9p | Kobayashi Koichi 9p | B+0.5 | |
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| [1983-02-24] 38th Japanese Honinbo, league
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+12.5 | |
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| [1982-08-12] 7th Japanese Meijin, league
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+R | |
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| [1982-04-08] 37th Japanese Honinbo, league
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| Rin Kaiho 9p | Kobayashi Koichi 9p | W+0.5 | |
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| [1981-11-19] 6th Japanese Kisei, challenger decision match #2
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| Kobayashi Koichi 9p | Rin Kaiho 9p | W+4.5 | |
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| [1981-11-12] 6th Japanese Kisei, challenger decision match #1
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| Rin Kaiho 9p | Kobayashi Koichi 9p | B+R | |
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| [1981-07-18] 1st Japanese NEC Cup, round 1
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| Kobayashi Koichi 9p | Rin Kaiho 9p | W+R | |
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| [1981-01-08] 6th Japanese Meijin, league
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| Rin Kaiho 9p | Kobayashi Koichi 9p | B+5.5 | |
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| [1980-06-19] 5th Japanese Meijin, league
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| Kobayashi Koichi 9p | Rin Kaiho 9p | B+R | |
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| [1979-12-13] 35th Japanese Honinbo, league
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| Kobayashi Koichi 9p | Rin Kaiho 9p | W+R | |
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| [1979-08-09] 4th Japanese Kisei
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| Rin Kaiho 9p | Kobayashi Koichi 8p | B+R | |
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| [1979-02-08] 34th Japanese Honinbo, league
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| Rin Kaiho 9p | Kobayashi Koichi 8p | W+R | |
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| [1978-08-03] 4th Japanese Tengen, round 3
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| Kobayashi Koichi 8p | Rin Kaiho 9p | B+2.5 | |
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| [1978-07-06] 26th Japanese Oza, round 1
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| Rin Kaiho 9p | Kobayashi Koichi 8p | B+8.5 | |
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| [1978-02-09] 33rd Japanese Honinbo, league
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| Rin Kaiho 9p | Kobayashi Koichi 8p | B+1.5 | |
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| [1978-01-26] 3rd Japanese Gosei, preliminary
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| Kobayashi Koichi 8p | Rin Kaiho 9p | B+R | |
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| [1977-09-11] 25th Japanese NHK Cup, round 2
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| Kobayashi Koichi 8p | Rin Kaiho 9p | W+R | |
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| [1976-11-04] 2nd Japanese Tengen, semi-final
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| Kobayashi Koichi 7p | Rin Kaiho 9p | B+R | |
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| [1973-12-30] 6th Japanese Hayago Championship, round 2
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| Rin Kaiho 9p | Kobayashi Koichi 6p | B+R | |
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