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Prime Minister's Cup Finals

The Prime Minister's Cup tournament (首相杯争奪高段者トーナメント) has been held 25 times, first in 1957, last in 1981. The Prime Minister after whom this event was named was Hatoyama Ichiro (1883-1959).

Participants were 5-7 dan. Until 1974 the final was a single game. From 1975 on, the final was a best-of-three. Komi was 4.5 until 1974, 5.5 from 1975. Allotted time was 4h each.

# year winner opponent sgf
1 1957 Fujisawa Hideyuki Ohira Shuzo
2 1958 Okubo Ichigen Kajiwara Takeo
3 1959 Hasegawa Akira Shinohara Masami
4 1960 Ohira Shuzo Suzuki Goro
5 1961 Kano Yoshinori Sakakibara Shoji
6 1962 Hayashi Yutaro Okubo Ichigen
7 1963 Sakakibara Shoji Shinohara Masami
8 1964 Miwa Yoshiro Sakakibara Shoji
9 1965 Otake Hideo Kageyama Toshiro
10 1966 Hoshino Toshi Kageyama Toshiro
11 1967 Suzuki Goro Oeda Yusuke
12 1968 Ishida Yoshio Takagi Shoichi
13 1969 Takagi Shoichi Ishigure Ikuro
14 1970 Kojima Takaho Ishigure Ikuro
15 1971 Takemiya Masaki Kurosawa Tadanao
16 1972 Kobayashi Koichi Cho Chikun
17 1973 Takemiya Masaki Kato Masao
18 1974 Kobayashi Koichi Tozawa Akinobu
19 1975 Takagi Shoichi Kojima Takaho
20 1976 Kobayashi Koichi Ishida Akira
21 1977 Awaji Shuzo Fukui Masaaki
22 1978 Nakamura Hidehito Kanashima Tadashi
23 1979 Haruyama Isamu Umeki Suguru
24 1980 Fukui Masaaki O Rissei
25 1981 Awaji Shuzo Kataoka Satoshi