Games Between Two Players
Kobayashi Koichi (5 win; 6 loss) vs. Yamabe Toshiro
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [1982-03-28] 14th Japanese Hayago Championship, final 3
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| Yamabe Toshiro 9p | Kobayashi Koichi 9p | W+1.5 |  |
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| [1982-03-14] 14th Japanese Hayago Championship, final 2
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| Kobayashi Koichi 9p | Yamabe Toshiro 9p | B+1.5 | |
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| [1982-02-28] 14th Japanese Hayago Championship, final 1
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| Yamabe Toshiro 9p | Kobayashi Koichi 9p | B+R | |
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| [1981-10-22] 37th Japanese Honinbo, preliminary
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| Yamabe Toshiro 9p | Kobayashi Koichi 9p | W+0.5 | |
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| [1981-07-15] 6th Japanese Meijin, league
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| Kobayashi Koichi 9p | Yamabe Toshiro 9p | B+R | |
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| [1980-07-17] 36th Japanese Honinbo, preliminary
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| Kobayashi Koichi 9p | Yamabe Toshiro 9p | B+R | |
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| [1977-10-06] 25th Japanese Oza, semi-final
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| Yamabe Toshiro 9p | Kobayashi Koichi 8p | B+R | |
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| [1977-10-02] 10th Japanese Hayago Championship, semi-final
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| Yamabe Toshiro 9p | Kobayashi Koichi 8p | B+R | |
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| [1977-09-15] 3rd Japanese Meijin, preliminary
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| Kobayashi Koichi 8p | Yamabe Toshiro 9p | W+R | |
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| [1977-01-16] 24th Japanese NHK Cup, round 2
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| Yamabe Toshiro 9p | Kobayashi Koichi 7p | B+6.5 | |
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| [1976-03-18] 15th Japanese Judan, preliminary
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| Yamabe Toshiro 9p | Kobayashi Koichi 7p | B+R | |
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