| 31st Okan Tournament | ||||
|---|---|---|---|---|
| Hane Yasumasa | Hane Yasumasa W+12.5 |
Hane Yasumasa W+R |
Hane Yasumasa W+R |
Hane Yasumasa W+R |
| Hiroe Katsuhiko | ||||
| Kuwata Yasuaki | ||||
| Morishima Kaoru | Morishima Kaoru B+1.5 |
|||
| Tsuchida Masamitsu | Tsuchida Masamitsu B+R |
|||
| Baba Shigeru | ||||
| Ito Yoji | Ito Yoji B+R |
Ito Yoji W+R |
||
| Yamashiro Hiroshi | Yamashiro Hiroshi B+2.5 |
|||
| Saijo Masataka | ||||
| Hiroe Hiroyuki | Hiroe Hiroyuki W+7.5 |
|||
| Hotta Seiji | Hotta Seiji B+0.5 |
|||
| Iwata Tatsuaki | ||||
| date | black | white | result | #mv | sgf |
|---|---|---|---|---|---|
| 1990-11-02 | Hane Yasumasa | Ogata Masaki | W+R | 172 | sgf |
Ogata Masaki retains the Okan title.