Games Between Two Players
Otake Hideo (2 win; 2 loss) vs. Oya Koichi
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2014-03-27] 23rd Japanese Ryusei, group stage
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| Oya Koichi 9p | Otake Hideo 9p | W+R |  |
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| [2008-09-04] 35th Japanese Tengen, preliminary
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| Otake Hideo 9p | Oya Koichi 9p | B+R | |
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| [2003-01-20] 12th Japanese Ryusei, group stage
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| Oya Koichi 9p | Otake Hideo 9p | B+1.5 | |
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| [2001-01-18] 56th Japanese Honinbo, league
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| Otake Hideo 9p | Oya Koichi 8p | W+R | |
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