Games Between Two Players
Kobayashi Koichi (5 win; 2 loss) vs. Sugiuchi Masao
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [1999-04-12] 8th Japanese Ryusei, group stage
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| Sugiuchi Masao 9p | Kobayashi Koichi 9p | W+R |  |
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| [1985-12-25] 41st Japanese Honinbo, league
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| Sugiuchi Masao 9p | Kobayashi Koichi 9p | B+6.5 | |
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| [1983-01-27] 21st Japanese Judan, loser section final
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| Kobayashi Koichi 9p | Sugiuchi Masao 9p | B+R | |
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| [1977-01-06] 2nd Japanese Tengen, final 4
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| Kobayashi Koichi 7p | Sugiuchi Masao 9p | B+R | |
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| [1976-12-16] 2nd Japanese Tengen, final 3
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| Sugiuchi Masao 9p | Kobayashi Koichi 7p | W+0.5 | |
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| [1976-12-07] 2nd Japanese Tengen, final 2
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| Kobayashi Koichi 7p | Sugiuchi Masao 9p | B+R | |
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| [1976-11-29] 2nd Japanese Tengen, final 1
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| Sugiuchi Masao 9p | Kobayashi Koichi 7p | B+4.5 | |
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