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| | white | black | year | event | guessed | | | Yoon Ki hyun (9p) | O Gyu Cheol (3p) | 1990 | Kiwang, 15th | | start | | Cho Chikun (9p) | Ohira Shuzo (9p) | 1990 | 38th Oza | | start | | Kano Yoshinori (9p) | O Meien (8p) | 1990 | 29th Judan | | start | | Mashiko Fumihiko (4p) | Omori Yasushi (3p) | 1990 | Japan Promotion Tournament, 1990 | | start | | Awaji Shuzo (9p) | Otake Hideo (9p) | 1990 | Meijin, 15th | | start | | Sakata Eio (9p) | Oyama Kunio (9p) | 1990 | Judan, 29th | | start | | Chen Linxin (8p) | Qian Yuping (9p) | 1990 | New Physical Education Cup | | start | | Liang Weitang (7p) | Qian Yuping (9p) | 1990 | Mingren, 3rd | | start | | Liu Xiaoguang (9p) | Qian Yuping (9p) | 1990 | CCTV Cup | | start | | Wang Hongjun (7p) | Qian Yuping (9p) | 1990 | 3rd Mingren League | | start | | Yu Bin (8p) | Qian Yuping (9p) | 1990 | Mingren, 3rd | | start | | Awaji Shuzo (9p) | Rin Kaiho (9p) | 1990 | 38th Oza | | start | | Honda Kunihisa (9p) | Rin Kaiho (9p) | 1990 | Meijin, 15th | | start | | Komatsu Hideki (7p) | Rin Kaiho (9p) | 1990 | Judan, 29th | | start | | Nie Weiping (9p) | Ruan Yunsheng (7p) | 1990 | 3rd Mingren League | | start | | Lee Chang Ho (4p) | Seo Bong Soo (9p) | 1990 | Kiseong, 2nd | | start | | Cho Hun-hyeon (9p) | Seo Pong-su (9p) | 1990 | 2nd Tong Yang Securities Cup | | start | | Zhang Wendong (7p) | Seo Pong-su (9p) | 1990 | 2nd Tong Yang Securities Cup | | start | | Shinkai Hiroko (4p) | Shoji Kazuko (3p) | 1990 | 3rd Female Meijin | | start | | Miyazawa Goro (8p) | Sonoda Yuichi (9p) | 1990 | 16th Tengen | | start | | Yoshida Mika (4p) | Sugiuchi Kazuko (8p) | 1990 | 9th Female Honinbo | | start | | Imamura Toshiya (8p) | Takagi Shoichi (9p) | 1990 | 15th Gosei | | start | | Cho Chikun (9p) | Takemiya Masaki (9p) | 1990 | Meijin, 15th | | start | | Kataoka Satoshi (9p) | Takemiya Masaki (9p) | 1990 | 15th Gosei | | start | | Hisajima Kunio (8p) | Tokimoto Hajime (8p) | 1990 | Kisei, 15th | | start |
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