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| white | black | year | event | guessed | |
| Im Seon Keun (6p) | Kang Hun (7p) | 1990 | Ch'oegowi, 30th | | start |
| Yu Pyeong-ho (6p) | Kang Man-u (6p) | 1990 | 1st BC Card Cup | | start |
| Rin Kaiho (9p) | Kataoka Satoshi (9p) | 1990 | Honinbo, 46th | | start |
| Hane Yasumasa (9p) | Kato Masao (9p) | 1990 | 38th Oza Final | | start |
| Kang Hun (7p) | Kim Su-chang (7p) | 1990 | 1st BC Card Cup | | start |
| Otake Hideo (9p) | Kobayashi Koichi (9p) | 1990 | 15th Meijin Final | | start |
| Otake Hideo (9p) | Kobayashi Koichi (9p) | 1990 | Honinbo, 46th | | start |
| Rin Kaiho (1p) | Kobayashi Koichi (1p) | 1990 | 16th Tengen Title | | start |
| Sugiuchi Kazuko (8p) | Kobayashi Reiko (6p) | 1990 | 3rd Female Meijin | | start |
| Kato Masao (9p) | Kobayashi Satoru (9p) | 1990 | Kisei, 15th | | start |
| Takemiya Masaki (9p) | Kobayashi Satoru (9p) | 1990 | Kisei, 15th | | start |
| Kobayashi Kenji (6p) | Komatsu Hideki (7p) | 1990 | 1st Ryusei D | | start |
| Asano Yasuko (1p) | Konishi Kazuko (2p) | 1990 | 10th Female Honinbo | | start |
| Nakazawa Ayako (1p) | Kusunoki Teruko (7p) | 1990 | 9th Women's Honinbo Final | | start |
| Chen Linxin (8p) | Liang Weitang (7p) | 1990 | 1990 Chinese Individual Championship | | start |
| Zheng Hong (6p) | Liang Weitang (7p) | 1990 | 1990 Chinese Individual Championship | | start |
| Li Xing (7p) | Liao Guiyong (7p) | 1990 | 1990 Chinese Individual Championship | | start |
| Wang Yuan (7p) | Liao Guiyong (7p) | 1990 | 1990 Chinese Individual Championship | | start |
| Jin Weibin (7p) | Li Gang (6p) | 1990 | 1990 Chinese Individual Championship | | start |
| Yang Hui (7p) | Liu Bo (1p) | 1990 | 1990 Chinese Individual Championship (Women) | | start |
| Ma Xiaochun (9p) | Liu Fan (1p) | 1990 | 1990 Chinese Individual Championship | | start |
| Zhang Wendong (7p) | Liu Jing (3p) | 1990 | 1990 Chinese Individual Championship | | start |
| 吴肇义 (8p) | Liu Xiaoguang (1p) | 1990 | 中国围棋全国个人赛 | | start |
| Jin Weibin (7p) | Liu Xiaoguang (9p) | 1990 | 1990 Chinese Individual Championship | | start |
| Ma Xiaochun (9p) | Liu Xiaoguang (9p) | 1990 | 1990 Chinese Individual Championship | | start |
