Games Between Two Players
Ko Iso (2 win; 2 loss) vs. Matsumoto Takehisa
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2020-11-16] 30th Japanese Ryusei, group D
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| Matsumoto Takehisa 8p | Ko Iso 9p | W+R |  |
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| [2006-10-04] 31st Japanese Shinjin O, final 3
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| Ko Iso 7p | Matsumoto Takehisa 6p | W+5.5 | |
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| [2006-09-20] 31st Japanese Shinjin O, final 2
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| Matsumoto Takehisa 6p | Ko Iso 7p | B+R | |
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| [2006-09-13] 31st Japanese Shinjin O, final 1
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| Ko Iso 7p | Matsumoto Takehisa 6p | B+R | |
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