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| | white | black | year | event | guessed | | | Handa Dogen (9p) | Go Seigen (9p) | 1973 | Judan, 12th | | start | | Honda Kunihisa (9p) | Hashimoto Shoji (9p) | 1973 | Meijin (Yomiuri), 13th | | start | | Sanno Hirotaka (7p) | Hashimoto Shoji (9p) | 1973 | Pro Best Ten, 11th | | start | | Sugiuchi Masao (9p) | Hashimoto Utaro (9p) | 1973 | Lightning Go Championship, 6th | | start | | Chino Tadahiko (7p) | Iwamoto Kaoru (9p) | 1973 | Meijin (Yomiuri), 13th | | start | | Hashimoto Utaro (9p) | Iwata Tatsuaki (9p) | 1973 | Meijin (Yomiuri), 13th | | start | | Cho Chikun (6p) | Kanashima Tadashi (5p) | 1973 | Oteai | | start | | Hashimoto Utaro (9p) | Kano Yoshinori (9p) | 1973 | Meijin (Yomiuri), 13th | | start | | Fujisawa Shuko (9p) | Kato Masao (8p) | 1973 | Pro Best Ten, 11th | | start | | Sakai Michiharu (8p) | Kobayashi Koichi (6p) | 1973 | Pro Best Ten, 11th | | start | | Hashimoto Utaro (9p) | Otake Hideo (9p) | 1973 | Honinbo, 29th | | start | | Takagawa Kaku (9p) | Otake Hideo (9p) | 1973 | Lightning Go Championship, 6th | | start | | Sakata Eio (9p) | Rin Kaiho (9p) | 1973 | Oza, 21st | | start | | Handa Dogen (9p) | Sakata Eio (9p) | 1973 | NHK Cup, 21st | | start | | Rin Kaiho (9p) | Sakata Eio (9p) | 1973 | Oza, 21st | | start | | Rin Kaiho (9p) | Sakata Eio (9p) | 1973 | Oza, 21st | | start | | Hashimoto Shoji (9p) | Takagawa Kaku (9p) | 1973 | Meijin (Yomiuri), 13th | | start | | Miyazaki Hiroshi (5p) | Takagawa Kaku (9p) | 1973 | Oza, 22nd | | start | | Cho Chikun (6p) | Yoshida Yoichi (3p) | 1973 | Oteai | | start | | Iwamoto Kaoru (9p) | Fujisawa Hosai (9p) | 1973 | 13th Old Meijin League | | start | | Otake Hideo (9p) | Hane Yasumasa (8p) | 1973 | 12th Judan | | start | | Honda Kunihisa (9p) | Hashimoto Utaro (9p) | 1973 | Meijin (Yomiuri), 13th | | start | | Otake Hideo (9p) | Hashimoto Utaro (9p) | 1973 | NHK, 21st | | start | | Suzuki Tsuna (3p) | Inoue Machiko (1p) | 1973 | 20th Women's Championship League | | start | | Sakata Eio (9p) | Ishida Yoshio (9p) | 1973 | Japan Series, 1st | | start |
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