Games Between Two Players
Ko Iso (2 win; 2 loss) vs. Motoki Katsuya
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2019-03-28] 44th Japanese Kisei, league B2
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| Ko Iso 8p | Motoki Katsuya 8p | W+R |  |
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| [2019-01-10] 44th Japanese Gosei, round 2
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| Motoki Katsuya 8p | Ko Iso 8p | W+R | |
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| [2018-01-11] 73rd Japanese Honinbo, league
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| Ko Iso 8p | Motoki Katsuya 8p | B+R | |
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| [2017-04-06] 72nd Japanese Honinbo, league
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| Ko Iso 8p | Motoki Katsuya 7p | W+R | |
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