Games Between Two Players
Kobayashi Koichi (1 win; 2 loss) vs. Ogata Masaki
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2005-06-12] 53rd Japanese NHK Cup, round 1
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| Kobayashi Koichi 9p | Ogata Masaki 9p | W+4.5 |  |
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| [1991-06-13] 30th Japanese Judan, winner section round 1
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| Ogata Masaki 8p | Kobayashi Koichi 9p | B+R | |
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| [1990-09-19] 29th Japanese Judan, loser section round 3
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| Kobayashi Koichi 9p | Ogata Masaki 7p | B+1.5 | |
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