Games Between Two Players
O Rissei (2 win; 1 loss) vs. Moriyama Naoki
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2009-02-12] 22nd Fujitsu Cup, Japanese preliminary
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| O Rissei 9p | Moriyama Naoki 9p | W+2.5 |  |
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| [1991-09-26] 16th Japanese Kisei, round 2
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| O Rissei 9p | Moriyama Naoki 8p | B+4.5 | |
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| [1989-05-28] 37th Japanese NHK Cup, round 1
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| O Rissei 9p | Moriyama Naoki 7p | B+R | |
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