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19th Judan title

Winners' Section

Winners' Section
Tono Hiroaki		Cho Chikun W+R	Kobayashi Koichi B+F	Hashimoto Shoji B+R

Sugiuchi Masao	Cho Chikun B+R
Cho Chikun	Cho Chikun B+R
Kudo Norio	Nakamura Hidehito B+R	Kobayashi Koichi B+R
Nakamura Hidehito	Nakamura Hidehito B+R
Ohira Shuzo	Kobayashi Koichi B+R
Kobayashi Koichi	Kobayashi Koichi B+R
Sakata Eio	Takagi Shoichi B+R	Honda Kunihisa B+7.5	Hashimoto Shoji B+
Takagi Shoichi	Takagi Shoichi B+R
Ishida Yoshio	Honda Kunihisa B+
Honda Kunihisa	Honda Kunihisa B+
Kato Masao	Rin Kaiho B+R	Hashimoto Shoji B+6.5
Rin Kaiho	Rin Kaiho B+R
Ishida Akira	Hashimoto Shoji W+R
Hashimoto Shoji	Hashimoto Shoji W+R

Losers' Section

Losers' Section
Sugiuchi Masao		Sugiuchi Masao W+	Sakata Eio W+R	Kobayashi Koichi W+1.5	Kobayashi Koichi B+R

Kudo Norio	Kudo Norio B+
Ohira Shuzo	Kudo Norio B+
Sakata Eio	Sakata Eio W+2.5	Sakata Eio B+R
Ishida Yoshio	Sakata Eio W+2.5
Kato Masao	Kato Masao B+
Ishida Akira	Kato Masao B+
Kobayashi Koichi
Tono Hiroaki		Tono Hiroaki B+	Rin Kaiho W+0.5	Honda Kunihisa B+R
Nakamura Hidehito		Tono Hiroaki B+
Takagi Shoichi		Rin Kaiho B+R
Rin Kaiho		Rin Kaiho B+R
Cho Chikun			Honda Kunihisa B+2.5
Honda Kunihisa			Honda Kunihisa B+2.5

Challenger decision match

Winner of the Winners' Section against winner of the Losers' Section.

date	black	white	result	#mv	sgf
1981-02-12	Kobayashi Koichi	Hashimoto Shoji	W+R	196	sgf

19th Judan Title

date	black	white	result	#mv	sgf
1981-03-04	Otake Hideo	Hashimoto Shoji	B+1.5	213	sgf
1981-03-19	Hashimoto Shoji	Otake Hideo	W+0.5	269	sgf
1981-04-01	Otake Hideo	Hashimoto Shoji	B+R	221	sgf

Otake Hideo won with 3-0.