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| | white | black | year | event | guessed | | | Hashimoto Shoji (9p) | Ishida Yoshio (9p) | 1980 | 18th Judan | | start | | Ishii Kunio (9p) | Ishida Yoshio (9p) | 1980 | 6th Gosei | | start | | Otake Hideo (9p) | Ishida Yoshio (9p) | 1980 | Lightning Go Championship, 12th | | start | | Otake Hideo (9p) | Ishida Yoshio (9p) | 1980 | Lightning Go Championship, 12th | | start | | Ishida Yoshio (9p) | Kato Masao (9p, Honinbo) | 1980 | 2nd JAA Cup | | start | | Kanda Ei (4p) | Kobayashi Kenji (4p) | 1980 | Kisei, 5th | | start | | Takemiya Masaki (9p) | Kobayashi Koichi (9p) | 1980 | Honinbo, 35th | | start | | Yamashiro Hiroshi (6p) | Kobayashi Koichi (9p) | 1980 | Meijin, 5th | | start | | Rin Kaiho (9p) | Kudo Norio (9p) | 1980 | 18th Judan | | start | | Sugiuchi Kazuko (7p) | Kusunoki Teruko (5p) | 1980 | 2nd Women's Kakusei | | start | | Wu Songsheng (9p) | Liu Xiaoguang (6p) | 1980 | New Physical Education Cup, 2nd | | start | | Hiroe Katsuhiko (6p) | Morishima Kaoru (6p) | 1980 | 21st Okan | | start | | Wu Songsheng (9p) | Nie Weiping (9p) | 1980 | New Physical Education Cup, 2nd | | start | | Wu Yulin (6p) | Nie Weiping (9p) | 1980 | Invitation Tournament, 1980 | | start | | Saijo Masataka (7p) | Okumura Hideo (6p) | 1980 | 21st Okan | | start | | Tsuchida Masamitsu (9p) | Okumura Hideo (6p) | 1980 | 21st Okan | | start | | Hata Hidefumi (3p) | O Meien (3p) | 1980 | Kisei, 5th | | start | | Ishida Yoshio (9p) | Otake Hideo (9p) | 1980 | Lightning Go Championship, 12th | | start | | Cho Chikun (8p) | Rin Kaiho (9p) | 1980 | 18th Judan | | start | | Fujisawa Shuko (9p) | Rin Kaiho (9p) | 1980 | Kisei, 4th | | start | | Kobayashi Koichi (9p) | Sakata Eio (9p) | 1980 | Honinbo, 35th | | start | | Yamashiro Hiroshi (6p) | Sato Sunao (9p) | 1980 | Gosei, 5th | | start | | Honda Kunihisa (9d) | Sekiyama Toshio (9d) | 1980 | 6th Meijin | | start | | Cho Hun-hyeon (8p) | Seo Pong-su (6p) | 1980 | 5th Kukgi Final | | start | | Baba Shigeru (7p) | Shimamura Toshihiro (9p) | 1980 | 21st Okan | | start |
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