Games Between Two Players
Hikosaka Naoto (3 win; 3 loss) vs. Sonoda Yuichi
| Game Date and Game Description | |||||
| Black | White | Result | Replay | Download | |
 [2018-03-15] 43rd Japanese Kisei, preliminary
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| Sonoda Yuichi 9p | Hikosaka Naoto 9p | B+R |  |
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| [2005-02-01] 14th Japanese Ryusei, group stage
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| Hikosaka Naoto 9p | Sonoda Yuichi 9p | B+0.5 | |
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| [1991-04-18] 17th Japanese Tengen, round 2
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| Hikosaka Naoto 8p | Sonoda Yuichi 9p | W+R | |
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| [1989-07-29] 2nd Japanese IBM Hayago Open, round 2
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| Hikosaka Naoto 7p | Sonoda Yuichi 9p | B+R | |
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| [1984-09-02] 32nd Japanese NHK Cup, round 2
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| Hikosaka Naoto 6p | Sonoda Yuichi 9p | B+0.5 | |
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| [1983-07-14] 8th Japanese Kisei
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| Sonoda Yuichi 9p | Hikosaka Naoto 6p | B+4.5 | |
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