Games Between Two Players
Ryu Shikun (1 win; 3 loss) vs. Oya Koichi
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2008-12-11] 18th Japanese Ryusei, group stage
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| Ryu Shikun 9p | Oya Koichi 9p | B+R |  |
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| [2004-12-20] 14th Japanese Ryusei, group stage
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| Ryu Shikun 9p | Oya Koichi 9p | W+4.5 | |
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| [1993-04-29] 18th Japanese Shinjin O, round 3
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| Oya Koichi 7p | Ryu Shikun 5p | B+2.5 | |
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| [1993-03-13] 8th Japanese NEC Shunei, final
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| Oya Koichi 7p | Ryu Shikun 5p | B+R | |
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