Games Between Two Players
Ko Iso (1 win; 3 loss) vs. Ichiriki Ryo
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2020-12-10] 76th Japanese Honinbo, league
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| Ko Iso 9p | Ichiriki Ryo 8p | W+R |  |
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| [2019-01-27] 66th Japanese NHK Cup, round 3
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| Ichiriki Ryo 8p | Ko Iso 8p | B+R | |
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| [2018-10-18] 74th Japanese Honinbo, league
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| Ichiriki Ryo 8p | Ko Iso 8p | B+R | |
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| [2013-11-07] 39th Japanese Meijin, preliminary
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| Ko Iso 8p | Ichiriki Ryo 3p | B+3.5 | |
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