Games Between Two Players
Cho U (14 win; 4 loss) vs. Ko Iso
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2019-11-07] 45th Japanese Gosei, round 1
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| Ko Iso 9p | Cho U 9p | W+R |  |
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| [2019-07-25] 75th Japanese Honinbo, preliminary
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| Cho U 9p | Ko Iso 8p | W+3.5 | |
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| [2018-07-19] 43rd Japanese Meijin, league
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| Ko Iso 8p | Cho U 9p | W+R | |
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| [2017-08-03] 42nd Japanese Meijin, league
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| Cho U 9p | Ko Iso 8p | B+R | |
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| [2016-12-22] 72nd Japanese Honinbo, league
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| Ko Iso 8p | Cho U 9p | B+R | |
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| [2016-02-11] 41st Japanese Meijin, league
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| Ko Iso 8p | Cho U 9p | W+R | |
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| [2015-01-15] 40th Japanese Meijin, league
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| Cho U 9p | Ko Iso 8p | W+R | |
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| [2014-10-30] 41st Japanese Tengen, preliminary
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| Ko Iso 8p | Cho U 9p | B+R | |
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| [2014-06-05] 39th Japanese Meijin, league
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| Cho U 9p | Ko Iso 8p | B+0.5 | |
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| [2012-10-11] 68th Japanese Honinbo, league
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| Ko Iso 8p | Cho U 9p | W+R | |
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| [2012-03-29] 67th Japanese Honinbo, league
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| Ko Iso 8p | Cho U 9p | W+R | |
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| [2012-01-23] 50th Japanese Judan, challenger decision match
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| Cho U 9p | Ko Iso 8p | B+R | |
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| [2009-01-29] 47th Japanese Judan, challenger decision match
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| Cho U 9p | Ko Iso 7p | B+R | |
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| [2008-11-22] 28th Japanese NEC Cup, round 2
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| Ko Iso 7p | Cho U 9p | W+R | |
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| [2008-09-11] 34th Japanese Tengen, challenger decision match
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| Ko Iso 7p | Cho U 9p | W+1.5 | |
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| [2008-05-22] 47th Japanese Judan, winner section round 1
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| Cho U 9p | Ko Iso 7p | B+R | |
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| [2007-03-29] 32nd Japanese Meijin, league
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| Cho U 9p | Ko Iso 7p | B+4.5 | |
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| [2005-01-06] 31st Japanese Tengen, round 1
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| Ko Iso 3p | Cho U 9p | W+R | |
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