Games Between Two Players
Kobayashi Koichi (3 win; 4 loss) vs. Kato Atsushi
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2021-10-21] 61st Japanese Judan, preliminary C
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| Kato Atsushi 9p | Kobayashi Koichi 9p | B+1.5 |  |
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| [2013-01-10] 39th Japanese Tengen, round 1
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| Kato Atsushi 9p | Kobayashi Koichi 9p | W+R | |
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| [2011-09-08] 37th Japanese Gosei, preliminary
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| Kobayashi Koichi 9p | Kato Atsushi 9p | B+R | |
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| [2011-04-07] 50th Japanese Judan, preliminary
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| Kobayashi Koichi 9p | Kato Atsushi 8p | W+R | |
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| [2009-08-29] 5th Japanese Daiwa-Shoken Cup, round 2
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| Kobayashi Koichi 9p | Kato Atsushi 8p | B+R | |
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| [2008-08-21] 34th Japanese Meijin, preliminary
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| Kobayashi Koichi 9p | Kato Atsushi 8p | W+0.5 | |
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| [2001-06-28] 49th Japanese Oza, semi-final
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| Kato Atsushi 7p | Kobayashi Koichi 9p | B+1.5 | |
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