25th Honinbo title 1970

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# 25th Honinbo title

## Preliminaries

The finals of the preliminaries were won by Fujisawa Hosai, Iwata Tatsuaki, Kano Yoshinori, and Hisai Keishi.

## League

In the first column the white player, on the top row the black player.

# | player | result | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
1. | Fujisawa Hosai | 3-4 |  |  | W+R |  | W+R |  | B+R |
2. | Kato Masao | 5-2 | B+R |  |  | B+11.5 |  | W+R |  | W+R
3. | Hisai Keishi | 1-6 |  | B+R |  |  | B+0.5 |  | W+0.5 |
4. | Sakata Eio | 6-1 | W+R |  | W+1.5 |  |  | W+R |  | W+R
5. | Takagawa Shukaku | 3-4 |  | B+R |  | B+R |  |  | W+R |
6. | Iwata Tatsuaki | 3-4 | W+8.5 |  | W+8.5 |  | B+3.5 |  |  | B+0.5
7. | Fujisawa Shuko | 2-5 |  | B+R |  | W+11.5 |  | B+R |  |
8. | Kano Yoshinori | 5-2 | W+R |  | W+R |  | W+0.5 |  | W+R |

## Demotion Playoff

Each of Takagawa Shukaku, Iwata Tatsuaki and Fujisawa Hosai ended with 3 wins. A playoff determined who of these three remained in the League. Fujisawa Hosai won.

date | black | white | result | #mv | sgf
--- | --- | --- | --- | --- | ---
1970-06-17,18 | Takagawa Shukaku | Iwata Tatsuaki | B+R | 253 | sgf
1970-07-01,02 | Takagawa Shukaku | Fujisawa Hosai | W+2.5 | 284 | sgf

## 25th Honinbo Title

date | black | white | result | #mv | sgf
--- | --- | --- | --- | --- | ---
1970-04-27,28 | Sakata Eio | Rin Kaiho | W+2.5 | 253 | sgf
1970-05-07,08 | Rin Kaiho | Sakata Eio | B+0.5 | 264 | sgf
1970-05-15,16 | Sakata Eio | Rin Kaiho | W+6.5 | 246 | sgf
1970-05-27,28 | Rin Kaiho | Sakata Eio | B+1.5 | 240 | sgf

Rin Kaiho won with 4-0.