Games Between Two Players
Kobayashi Koichi (1 win; 2 loss) vs. Yu Zhengqi
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2016-03-03] 25th Japanese Ryusei, group C
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| Yu Zhengqi 7p | Kobayashi Koichi 9p | B+0.5 |  |
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| [2014-07-24] 21st Japanese Agon Cup, round 1
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| Kobayashi Koichi 9p | Yu Zhengqi 7p | B+R | |
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| [2013-02-14] 39th Japanese Tengen, round 1
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| Kobayashi Koichi 9p | Yu Zhengqi 3p | W+R | |
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