Games Between Two Players
Kobayashi Koichi (3 win; 0 loss) vs. Mukai Chiaki
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2021-04-05] 77th Japanese Honinbo, preliminary
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| Mukai Chiaki 5p | Kobayashi Koichi 9p | W+R |  |
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| [2017-10-26] 57th Japanese Judan, preliminary
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| Mukai Chiaki 5p | Kobayashi Koichi 9p | W+R | |
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| [2016-07-28] 65th Japanese Oza, preliminary
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| Kobayashi Koichi 9p | Mukai Chiaki 5p | B+0.5 | |
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