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| Cho U Vs. Yamashita Keigo | |||
| Date(2005) | Venue | Result | |
| 1 | Oct. 28 | Tokyo | Cho (B) won by resign |
| 2 | Nov. 21 | Kanagawa | Cho (W) won by resign |
| 3 | Dec. 01 | Nara | Cho (B) won by 9.5 |
| 4 | Dec. 08 | Yokohama | --- |
| 5 | Dec. 26 | Yamagata | --- |
| Player | 1st | 2nd | Semifinal | Final |
| O Meien | O 4/28 |
O 6/9 |
Yamashita 8/11 |
Yamashita 9/8 |
| Yoda Norimoto | ||||
| Cho Chikun | Kataoka 5/19 |
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| Kataoka Satoshi | ||||
| Sakai Hideyuki | Yamashita 4/28 |
Yamashita 6/30 |
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| Yamashita Keigo | ||||
| Hane Naoki | Hane.N 4/14 |
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| Enda Hideki | ||||
| Ryu Shikun | Ryu 4/21 |
Ryu 7/14 |
Nakaonoda 8/4 |
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| Mimura Tomoyasu | ||||
| Kobayashi Satoru | Yamada 4/21 |
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| Yamada Kimio | ||||
| O Rissei | O 6/23 |
Nakaonoda 7/14 |
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| Yuki Satoshi | ||||
| Imamura Toshiya | Nakaonoda 5/12 |
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| Nakaonoda Tomomi |