Games Between Two Players
Ko Iso (3 win; 1 loss) vs. Kurahashi Masayuki
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2016-07-14] 55th Japanese Judan, preliminary
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| Kurahashi Masayuki 9p | Ko Iso 8p | W+0.5 |  |
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| [2010-05-27] 49th Japanese Judan, winner section round 1
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| Ko Iso 7p | Kurahashi Masayuki 9p | B+R | |
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| [2009-01-22] 35th Japanese Tengen, round 1
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| Kurahashi Masayuki 9p | Ko Iso 7p | B+R | |
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| [2006-01-19] 32nd Japanese Tengen, round 1
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| Ko Iso 7p | Kurahashi Masayuki 9p | B+R | |
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