Games Between Two Players
Hsu Chiayuan (1 win; 1 loss) vs. Oya Koichi
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2020-11-09] 47th Japanese Tengen, preliminary
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| Oya Koichi 9p | Hsu Chiayuan 8p | W+R |  |
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| [2014-02-06] 23rd Japanese Ryusei, group stage
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| Oya Koichi 9p | Hsu Chiayuan 1p | B+R | |
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