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26th Honinbo title

Preliminaries

A few games.

date black white result #mv sgf
1970-04-08 Takemiya Masaki Kamimura Kunio B+ 200 sgf
1970-07-30 Takagawa Shukaku Takemiya Masaki W+R 162 sgf
1970-08-05 Hashimoto Shoji Hashimoto Utaro W+3.5 238 sgf
1970-09 Sanno Hirotaka Hashimoto Utaro W+ 202 sgf
1970-10-01 Yamabe Toshiro Hashimoto Utaro W+R 150 sgf
1970-10-22 Chino Tadahiko Hashimoto Utaro B+2.5 244 sgf
1970-11-12 Ishida Yoshio Oeda Yusuke B+R 117 sgf
1970-12-17 Shimamura Toshihiro Fujisawa Shuko W+4.5 247 sgf

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. Sakata Eio 4-3 B+R W+R W+3.5
2. Kato Masao 5-2
3. Kano Yoshinori 2-5 W+R B+5.5 B+R
4. Fujisawa Hosai 5-2 W+
5. Ishida Yoshio 6-1 W+9.5 B+1.5 W+0.5 W+R
6. Fujisawa Shuko 3-4 B+0.5 B+ B+R W+
7. Hoshino Toshi 2-5
8. Chino Tadahiko 1-6 B+R B+

The 26th Honinbo Title

date black white result #mv sgf
1971-04-26,27 Rin Kaiho Ishida Yoshio B+R 163 sgf
1971-05-06,07 Ishida Yoshio Rin Kaiho B+1.5 251 sgf
1971-05-18,19 Rin Kaiho Ishida Yoshio B+R 195 sgf
1971-05-31,06-01 Ishida Yoshio Rin Kaiho B+R 183 sgf
1971-06-10,11 Rin Kaiho Ishida Yoshio W+R 218 sgf
1971-06-21,22 Ishida Yoshio Rin Kaiho B+0.5 241 sgf

Ishida won with 4-2.

There is a very detailed commentary on this title match, The 1971 Honinbo Tournament, by Kaoro Iwamoto (and James C. Davies), Ishi Press, 1976. It contains an analysis of these six games, the seven preceding League games by Ishida, and his last game in the Preliminaries.