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4th Honinbo title

Preliminary tournament

A few games from earlier preliminaries.

date black white result #mv sgf
1946 Kajiwara Takeo Nakagawa Shinji B+1.5 206 sgf
1947 Sometani Kazuo Kato Shin B+R 163 sgf
1947 Maeda Nobuaki Kajiwara Takeo W+0.5 289 sgf
1947 Shimamura Toshihiro Sakata Eio B+3.5 275 sgf
1947 Miyashita Shuyo Handa Dogen W+R 184 sgf

The last preliminary
Shimamura Toshihiro Hayashi Yutaro
(B+R)		 Hayashi Yutaro
Hayashi Yutaro
Fujisawa Kuranosuke Handa Dogen
(W+1.5)
Handa Dogen
Kitani Minoru Kitani Minoru
(B+5.5)		 Kitani Minoru
(W+11.5)
Hashimoto Utaro
Sometani Kazuo Sometani Kazuo
Takagawa Kaku

Challenger Playoff

date black white result #mv sgf
1947-07 Kitani Minoru Hayashi Yutaro B+R 169 sgf
1947-08 Hayashi Yutaro Kitani Minoru W+7.5 238 sgf

4th Honinbo Title

This was the first title match played with komi (4.5).

date black white result #mv sgf
1947-10-20..22 Kitani Minoru Iwamoto Kaoru B+4.5 283 sgf
1947-10-28..30 Iwamoto Kaoru Kitani Minoru B+8.5 237 sgf
1947-11-25..27 Kitani Minoru Iwamoto Kaoru W+2.5 309 sgf
1947-12-20..22 Iwamoto Kaoru Kitani Minoru W+0.5 275 sgf
1947-12-26..28 Iwamoto Kaoru Kitani Minoru B+3.5 271 sgf

Iwamoto Kaoru won with 3-2 (and was promoted to 8d afterwards).

Go Seigen

Go Seigen was much stronger than the players in these Honinbo tournaments, but could not participate since, being Chinese, he had to withdraw as a member of Nihon Ki-in. He played a jubango with Hashimoto Utaro and won (6 won, 3 lost, 1 jigo). He played a jubango with Iwamoto Kaoru and won (7 won, 2 lost, 1 jigo). Afterwards he was promoted to 9d.