Games Between Two Players
Kobayashi Koichi (3 win; 1 loss) vs. Yasuda Yasutoshi
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2016-03-03] 25th Japanese Ryusei, group C
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| Yasuda Yasutoshi 9p | Kobayashi Koichi 9p | W+R |  |
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| [2008-10-02] 34th Japanese Gosei, preliminary
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| Kobayashi Koichi 9p | Yasuda Yasutoshi 9p | W+R | |
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| [2007-05-03] 33rd Japanese Meijin, preliminary
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| Kobayashi Koichi 9p | Yasuda Yasutoshi 9p | B+R | |
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| [2006-07-20] 32nd Japanese Gosei, preliminary
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| Kobayashi Koichi 9p | Yasuda Yasutoshi 9p | B+R | |
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