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| | white | black | year | event | guessed | | | Takemiya Masaki (7p) | Ishii Kunio (8p) | 1973 | Honinbo, 29th | | start | | Kobayashi Chizu (2p) | Ito Tomoe (5p) | 1973 | 20th Women's Championship League | | start | | Ohira Shuzo (9p) | Iwata Tatsuaki (9p) | 1973 | Pro Best Ten, 11th | | start | | Yamabe Toshiro (9p) | Otake Hideo (9p) | 1973 | Meijin (Yomiuri), 13th | | start | | Cho Chikun (6p) | Rin Kaiho (9p) | 1973 | 11th Pro Best Ten | | start | | Hashimoto Utaro (9p) | Rin Kaiho (9p) | 1973 | Judan, 12th | | start | | Sakata Eio (9p) | Rin Kaiho (9p) | 1973 | Japan Series, 1st | | start | | Kato Masao (8p) | Sakata Eio (9p) | 1973 | Nihon Ki-in Championship, 21st | | start | | Miyashita Shuyo (9p) | Sakata Eio (9p) | 1973 | 29th Honinbo League | | start | | Ohira Shuzo (9p) | Sakata Eio (9p) | 1973 | Pro Best Ten, 11th | | start | | Ishida Yoshio (9p) | Sugiuchi Masao (9p) | 1973 | 13th Old Meijin League | | start | | Sakata Eio (9p) | Sugiuchi Masao (9p) | 1973 | Honinbo, 29th | | start | | Ishida Yoshio (9p) | Takagawa Kaku (9p) | 1973 | NHK Cup, 21st | | start | | Kageyama Toshiro (6p) | Chino Tadahiko (7p) | 1973 | 17th Prime Minister's Cup | | start | | Kitamura Hiroshi (5p) | Fukui Susumu (5p) | 1973 | 17th Prime Minister's Cup | | start | | Cho Chikun (5p) | Haruyama Isamu (6p) | 1973 | 17th Prime Minister's Cup | | start | | Hashimoto Utaro (9p) | Hashimoto Shoji (9p) | 1973 | | | start | | Hashimoto Utaro (9p) | Ishii Shinzo (8p) | 1973 | 4th All-Japan First Place Championship | | start | | Kawamoto Noboru (6p) | Kanno Kiyonori (6p) | 1973 | 17th Prime Minister's Cup | | start | | Miwa Yoshiro (7p) | Kodama Kunio (5p) | 1973 | 17th Prime Minister's Cup | | start | | Kuwahara Munehisa (7p) | Koyama Shizuo (5p) | 1973 | 17th Prime Minister's Cup | | start | | Kada Katsuji (9p) | Otake Hideo (9p) | 1973 | 12th Old Meijin League | | start | | Kajiwara Takeo (9p) | Otake Hideo (9p) | 1973 | All Japan First Place Tournament, 3rd | | start | | Kato Masao (7p) | Sakata Eio (9p) | 1973 | 28th Honinbo | | start | | Takagi Shoichi (7p) | Sakata Eio (9p) | 1973 | Judan, 11th | | start |
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