Games Between Two Players
Cho Chikun (0 win; 2 loss) vs. Koyama Kuya
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2023-11-27] 79th Japanese Honinbo, preliminary A
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| Cho Chikun 9p | Koyama Kuya 5p | W+1.5 |  |
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| [2021-11-01] 61st Japanese Judan, preliminary B
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| Koyama Kuya 5p | Cho Chikun 9p | B+R | |
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