Games Between Two Players
Kobayashi Koichi (1 win; 3 loss) vs. So Yokoku
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2025-07-24] 81st Japanese Honinbo, preliminary B
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| Kobayashi Koichi 9p | So Yokoku 9p | W+16.5 |  |
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| [2008-09-18] 34th Japanese Kisei, preliminary
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| So Yokoku 8p | Kobayashi Koichi 9p | B+12.5 | |
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| [2006-06-29] 32nd Japanese Meijin, preliminary
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| So Yokoku 8p | Kobayashi Koichi 9p | B+R | |
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| [2004-11-21] 52nd Japanese NHK Cup, round 2
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| So Yokoku 7p | Kobayashi Koichi 9p | W+1.5 | |
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