Games Between Two Players
Kobayashi Koichi (3 win; 0 loss) vs. Sanno Hirotaka
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2018-03-01] 74th Japanese Honinbo, preliminary
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| Kobayashi Koichi 9p | Sanno Hirotaka 9p | B+R |  |
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| [2008-07-10] 34th Japanese Kisei, preliminary
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| Kobayashi Koichi 9p | Sanno Hirotaka 9p | B+R | |
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| [2007-01-25] 63rd Japanese Honinbo, preliminary
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| Kobayashi Koichi 9p | Sanno Hirotaka 9p | B+5.5 | |
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