| Awaji Shuzo | O Meien W+R 1998-03-19 |
O Meien W+R 1998-04-16 |
Cho Chikun W+R 1998-05-14 |
Ryu Shikun B+0.5 1998-08-13 |
Kobayashi Koichi B+R 1998-10-01 |
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| O Meien | ||||||
| Sakata Eio | Sakata Eio W+R 1998-01-29 |
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| Suzuki Isao | ||||||
| Ishikura Noboru | Cho Chikun W+8.5 1998-03-05 |
Cho Chikun W+R 1998-04-23 |
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| Cho Chikun | ||||||
| Kobayashi Satoru | Kobayashi Satoru W+4.5 1998-03-26 |
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| O Rissei | ||||||
| Mimura Tomoyasu | Ryu Shikun B+3.5 1998-01-29 |
Ryu Shikun B+R 1998-05-07 |
Ryu Shikun W+R 1998-06-25 |
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| Ryu Shikun | ||||||
| Hikosaka Naoto | Hikosaka Naoto B+1.5 1998-03-19 |
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| Kataoka Satoshi | ||||||
| Yamashiro Hiroshi | Yamashiro Hiroshi W+2.5 1998-02-12 |
Yamashiro Hiroshi B+2.5 1998-05-07 |
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| Kato Masao | ||||||
| Yoda Norimoto | Yoda Norimoto W+4.5 1998-04-09 |
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| Kurahashi Masayuki | ||||||
| Ishida Yoshio | Ishida Yoshio B+R 1998-01-29 |
Takemiya Masaki B+2.5 1998-06-18 |
Takemiya Masaki B+R 1998-07-09 |
Kobayashi Koichi B+R 1998-08-13 |
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| Yamashita Keigo | ||||||
| Takemiya Masaki | Takemiya Masaki B+R 1998-03-26 |
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| Hane Naoki | ||||||
| Fujisawa Shuko | Hashimoto Shoji W+2.5 1998-02-05 |
Takao Shinji W+15.5 1998-05-14 |
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| Hashimoto Shoji | ||||||
| Takao Shinji | Takao Shinji W+R 1998-02-19 |
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| Honda Kunihisa | ||||||
| Endo Takahiro | Kobayashi Koichi B+R 1998-01-22 |
Kobayashi Koichi B+R 1998-04-02 |
Kobayashi Koichi W+R 1998-07-16 |
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| Kobayashi Koichi | ||||||
| Yo Kagen | Hasegawa Sunao B+R 1998-02-05 |
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| Hasegawa Sunao | ||||||
| Oyama Kunio | Rin Kaiho W+R 1998-02-26 |
Rin Kaiho W+R 1998-06-11 |
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| Rin Kaiho | ||||||
| Enda Hideki | Enda Hideki B+0.5 1998-03-12 |
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| Kiyonari Tetsuya | Ishida Atsushi B+4.5 1998-01-15 |
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| Ishida Atsushi | ||||||
| date | black | white | result | #mv | sgf |
|---|---|---|---|---|---|
| 1998-11-05 | Kobayashi Koichi | Kudo Norio | W+1.5 | 224 | sgf |
| 1998-11-12 | Kudo Norio | Kobayashi Koichi | W+R | 226 | sgf |
| 1998-12-03 | Kobayashi Koichi | Kudo Norio | B+R | 215 | sgf |
| 1998-12-10 | Kudo Norio | Kobayashi Koichi | B+6.5 | 265 | sgf |
| 1998-12-17 | Kudo Norio | Kobayashi Koichi | W+11.5 | 266 | sgf |
Kobayashi Koichi won 3-2.