The Pro-Ama Honinbo Match

Professional go players have a Honinbo title since 1941. Amateurs have a Amateur Honinbo title since 1955. Since 1963 there is a 1-game match between the pro and ama Honinbo title holders, with varying handicap and komi. Some details are given here (Japanese). See also SL.

The 54th Pro-Ama Honinbo Match was held on 2016-12-18 between Iyama Yuta, the 71st Honinbo, and Ozeki Minoru, the 62nd Amateur Honinbo.

The table below gives the results, sometimes the game itself. In all cases, the amateur played Black. Here "ha" means handicap. Starting from the 33rd edition, B can freely choose where to place the handicap stones. Negative ("reverse") komi means that W pays B.

# year black white ha komi result

1 1963 Harada Minoru Sakata Eio 2 0 B+6

2 1964 Harada Minoru Sakata Eio 2 0 B+R

3 1965 Kikuchi Yasuro Sakata Eio 0 −5 B+8

4 1966 Kikuchi Yasuro Sakata Eio 0 −4 W+3

5 1967 Murakami Bunsho Sakata Eio 0 −5 B+2

6 1968 Harada Minoru Rin Kaiho 0 −3.5 W+R

7 1969 Kikuchi Yasuro Rin Kaiho 0 −4.5 B+0.5

8 1970 Narumi Naoshi Rin Kaiho 0 −3.5 W+R

9 1971 Miura Hiroshi Ishida Yoshio 2 0 W+R

10 1972 Kikuchi Yasuro Ishida Yoshio 0 −3.5 W+R

11 1973 Kikuchi Yasuro Ishida Yoshio 0 −4.5 W+0.5

12 1974 Miura Hiroshi Ishida Yoshio 0 −4.5 W+R

13 1975 Taguchi Tetsuro Ishida Yoshio 0 −4.5 W+R

14 1976 Murakami Bunsho Takemiya Masaki 0 −4 W+R

15 1977 Kikuchi Yasuro Kato Masao 0 −5.5 W+3.5

16 1978 Murakami Bunsho Kato Masao 0 −4.5 W+18.5

17 1979 Miura Hiroshi Kato Masao 0 −5.5 W+R

18 1980 Miura Hiroshi Takemiya Masaki 2 0 W+R

19 1981 Murakami Bunsho Cho Chikun 0 −5.5 W+6.5

20 1982 Kikuchi Yasuro Cho Chikun 2 0 B+R

21 1983 Kikuchi Yasuro Rin Kaiho 0 −5 W+4

22 1984 Kikuchi Yasuro Rin Kaiho 2 2.5 B+4.5

23 1985 Nakazono Seizo Takemiya Masaki 0 −5 B+7

24 1986 Hirata Hironori Takemiya Masaki 0 −2.5 W+R

25 1987 Nakazono Seizo Takemiya Masaki 0 −5 B+R

26 1988 Hirata Hironori Takemiya Masaki 0 −2.5 W+8.5

27 1989 Harada Minoru Cho Chikun 0 −5 Jigo

28 1990 Nakazono Seizo Cho Chikun 0 −5 W+R

29 1991 Tanaka Masato Cho Chikun 2 2.5 W+R

30 1992 Nakazono Seizo Cho Chikun 2 0 W+3

31 1993 Hirata Hironori Cho Chikun 2 −2.5 W+R

32 1994 Takano Hideki Cho Chikun 2 −5 W+R

33 1995 Nakazono Seizo Cho Chikun 3 2.5 B+10.5

34 1996 Muraoka Toshihiko* Cho Chikun 2 −5 W+R

35 1997 Harada Minoru Cho Chikun 3 2.5 W+1.5

36 1998 Tanaka Masato Cho Chikun 3 0 B+1

37 1999 Miura Hiroshi Cho Sonjin 3 2.5 B+10.5

38 2000 Iwai Ryuichi O Meien 2 −5 B+4

39 2001 Komori Shoji O Meien 2 −2.5 W+R

40 2002 Samejima Ichiro Kato Masao 2 −5 B+R

41 2003 Harada Minoru Cho U 2 −3 Jigo

42 2004 Tanaka Nobuhiro Cho U 2 −3 W+R

43 2005 Hiraoka Satoshi Takao Shinji 2 −6 B+5

44 2006 Murakami Fukashi Takao Shinji 2 −3 B+4

45 2007 Takizawa Yuta Takao Shinji 2 0 W+R

46 2008 Hon Seisen Hane Naoki 2 −3 B+R

47 2009 Hiraoka Satoshi Hane Naoki 2 0 B+R

48 2010 Ryu Shinhwan Yamashita Keigo 2 3 B+R

49 2011 Nakazono Seizo Yamashita Keigo 0 −6 B+7

50 2012 Hiraoka Satoshi Iyama Yuta 0 −3 W+3

51 2013 Hon Soggi Iyama Yuta 0 −6 B+R

52 2014 Hon Soggi Iyama Yuta 0 −3 W+9

53 2015 Shibano Ryunosuke Iyama Yuta 0 −6 W+R

54 2016 Ozeki Minoru Iyama Yuta 2 3 W+R

55 2017 Hayashi Takashi Iyama Yuta 2 0 W+R

56 2018 Hiraoka Satoshi Iyama Yuta 2 −3 B+R

57 2019 Ozeki Minoru Iyama Yuta 2 0 B+R

58 -

59 2021 Hiraoka Satoshi Iyama Yuta 0 −6 W+R

60 2022 Kurita Yoshiki Iyama Yuta 0 −6 W+10

61 2023 Ozeki Minoru Ichiriki Ryo 0 −6 W+7

#	year	black	white	ha	komi	result
1	1963	Harada Minoru	Sakata Eio	2	0	B+6
2	1964	Harada Minoru	Sakata Eio	2	0	B+R
3	1965	Kikuchi Yasuro	Sakata Eio	0	−5	B+8
4	1966	Kikuchi Yasuro	Sakata Eio	0	−4	W+3
5	1967	Murakami Bunsho	Sakata Eio	0	−5	B+2
6	1968	Harada Minoru	Rin Kaiho	0	−3.5	W+R
7	1969	Kikuchi Yasuro	Rin Kaiho	0	−4.5	B+0.5
8	1970	Narumi Naoshi	Rin Kaiho	0	−3.5	W+R
9	1971	Miura Hiroshi	Ishida Yoshio	2	0	W+R
10	1972	Kikuchi Yasuro	Ishida Yoshio	0	−3.5	W+R
11	1973	Kikuchi Yasuro	Ishida Yoshio	0	−4.5	W+0.5
12	1974	Miura Hiroshi	Ishida Yoshio	0	−4.5	W+R
13	1975	Taguchi Tetsuro	Ishida Yoshio	0	−4.5	W+R
14	1976	Murakami Bunsho	Takemiya Masaki	0	−4	W+R
15	1977	Kikuchi Yasuro	Kato Masao	0	−5.5	W+3.5
16	1978	Murakami Bunsho	Kato Masao	0	−4.5	W+18.5
17	1979	Miura Hiroshi	Kato Masao	0	−5.5	W+R
18	1980	Miura Hiroshi	Takemiya Masaki	2	0	W+R
19	1981	Murakami Bunsho	Cho Chikun	0	−5.5	W+6.5
20	1982	Kikuchi Yasuro	Cho Chikun	2	0	B+R
21	1983	Kikuchi Yasuro	Rin Kaiho	0	−5	W+4
22	1984	Kikuchi Yasuro	Rin Kaiho	2	2.5	B+4.5
23	1985	Nakazono Seizo	Takemiya Masaki	0	−5	B+7
24	1986	Hirata Hironori	Takemiya Masaki	0	−2.5	W+R
25	1987	Nakazono Seizo	Takemiya Masaki	0	−5	B+R
26	1988	Hirata Hironori	Takemiya Masaki	0	−2.5	W+8.5
27	1989	Harada Minoru	Cho Chikun	0	−5	Jigo
28	1990	Nakazono Seizo	Cho Chikun	0	−5	W+R
29	1991	Tanaka Masato	Cho Chikun	2	2.5	W+R
30	1992	Nakazono Seizo	Cho Chikun	2	0	W+3
31	1993	Hirata Hironori	Cho Chikun	2	−2.5	W+R
32	1994	Takano Hideki	Cho Chikun	2	−5	W+R
33	1995	Nakazono Seizo	Cho Chikun	3	2.5	B+10.5
34	1996	Muraoka Toshihiko*	Cho Chikun	2	−5	W+R
35	1997	Harada Minoru	Cho Chikun	3	2.5	W+1.5
36	1998	Tanaka Masato	Cho Chikun	3	0	B+1
37	1999	Miura Hiroshi	Cho Sonjin	3	2.5	B+10.5
38	2000	Iwai Ryuichi	O Meien	2	−5	B+4
39	2001	Komori Shoji	O Meien	2	−2.5	W+R
40	2002	Samejima Ichiro	Kato Masao	2	−5	B+R
41	2003	Harada Minoru	Cho U	2	−3	Jigo
42	2004	Tanaka Nobuhiro	Cho U	2	−3	W+R
43	2005	Hiraoka Satoshi	Takao Shinji	2	−6	B+5
44	2006	Murakami Fukashi	Takao Shinji	2	−3	B+4
45	2007	Takizawa Yuta	Takao Shinji	2	0	W+R
46	2008	Hon Seisen	Hane Naoki	2	−3	B+R
47	2009	Hiraoka Satoshi	Hane Naoki	2	0	B+R
48	2010	Ryu Shinhwan	Yamashita Keigo	2	3	B+R
49	2011	Nakazono Seizo	Yamashita Keigo	0	−6	B+7
50	2012	Hiraoka Satoshi	Iyama Yuta	0	−3	W+3
51	2013	Hon Soggi	Iyama Yuta	0	−6	B+R
52	2014	Hon Soggi	Iyama Yuta	0	−3	W+9
53	2015	Shibano Ryunosuke	Iyama Yuta	0	−6	W+R
54	2016	Ozeki Minoru	Iyama Yuta	2	3	W+R
55	2017	Hayashi Takashi	Iyama Yuta	2	0	W+R
56	2018	Hiraoka Satoshi	Iyama Yuta	2	−3	B+R
57	2019	Ozeki Minoru	Iyama Yuta	2	0	B+R
58	-
59	2021	Hiraoka Satoshi	Iyama Yuta	0	−6	W+R
60	2022	Kurita Yoshiki	Iyama Yuta	0	−6	W+10
61	2023	Ozeki Minoru	Ichiriki Ryo	0	−6	W+7

*) Amateur Honinbo Sakai Hideyuki was substituted by 2nd place winner Muraoka Toshihiko.

The 1989 and 1990 matches were both held on 1990-11-25.
The 2017 match was held on 2018-01-13.
The 2018 match was held on 2019-01-26.
The 2019 match was held on 2020-02-09.
The 2020 match was cancelled.