Games Between Two Players
Kobayashi Koichi (3 win; 0 loss) vs. Arimura Hiroshi
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2017-11-09] 44th Japanese Tengen, preliminary
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| Arimura Hiroshi 8p | Kobayashi Koichi 9p | W+7.5 |  |
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| [2001-01-29] 14th Fujitsu Cup, Japanese preliminary
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| Kobayashi Koichi 9p | Arimura Hiroshi 7p | B+5.5 | |
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| [1991-09-19] 30th Japanese Judan, loser section round 2
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| Kobayashi Koichi 9p | Arimura Hiroshi 4p | B+R | |
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