Games Between Two Players
Kobayashi Koichi (1 win; 1 loss) vs. Okada Yumiko
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2019-01-17] 45th Japanese Gosei, preliminary
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| Okada Yumiko 6p | Kobayashi Koichi 9p | B+R |  |
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| [2007-05-10] 56th Japanese Oza, preliminary
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| Kobayashi Koichi 9p | Okada Yumiko 6p | B+R | |
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