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| | white | black | year | event | guessed | | | Otake Hideo (9p) | Kobayashi Koichi (9p) | 1990 | | | start | | Ohira Shuzo (9p) | Kobayashi Satoru (9p) | 1990 | 3rd IBM Hayago Open Final | | start | | O Rissei (9p) | Kobayashi Satoru (9p) | 1990 | 3rd IBM Hayago Open | | start | | Jang Du Jin (4p) | Ko Kwang-myeong (1p) | 1990 | Korea Promotion Tournament, 1990 | | start | | Kato Masao (9p) | Kudo Norio (9p) | 1990 | Kisei, 15th | | start | | Kobayashi Chizu (5p) | Kusunoki Teruko (Female Honinbo) | 1990 | 3rd Female Meijin | | start | | Cho Hun Hyun (9p) | Lee Chang Ho (4p) | 1990 | Kuksu, 34th | | start | | Yoo Chang Hyuk (4p) | Lee Chang Ho (4p) | 1990 | Kiseong, 2nd | | start | | Yoo Chang Hyuk (4p) | Lee Chang Ho (4p) | 1990 | Kiseong, 2nd | | start | | Cho Sonjin (6p) | Maeda Ryoji (6p) | 1990 | 1st Ryusei B | | start | | Nie Weiping (9p) | Ma Xiaochun (9p) | 1990 | 2nd Qiwang | | start | | Honda Kunihisa (9p) | Mimura Tomoyasu (5p) | 1990 | Meijin, 16th | | start | | Hata Hidefumi (5p) | Nakaonoda Tomomi (5p) | 1990 | 1st Ryusei D | | start | | Nakayama Noriyuki (5p) | Nakaonoda Tomomi (5p) | 1990 | 1st Ryusei D | | start | | Hara Sachiko (1p) | Nakayama Kaoru (2p) | 1990 | 3rd Female Meijin | | start | | Miyazaki Shimako (2p) | Nakazawa Ayako (1p) | 1990 | 3rd Female Meijin | | start | | Kitamura Hiroshi (7p) | Narusawa Yasuichi (6p) | 1990 | Oteai 1990 | | start | | Cao Dayuan (8p) | Nie Weiping (9p) | 1990 | New Physical Education Cup | | start | | Ishida Yoshio (9p) | Ohira Shuzo (9p) | 1990 | 3rd IBM Hayago Open | | start | | Chin Kaei (6p) | Onda Yasuhiko (6p) | 1990 | 1st Ryusei C | | start | | Sakata Eio (9p) | O Rissei (9p) | 1990 | 29th Judan | | start | | Kobayashi Koichi (9p) | Otake Hideo (9p) | 1990 | Meijin, 15th | | start | | Yang Sang-kuk (7p) | Paek Seong-ho (7p) | 1990 | 25th Wangwi League | | start | | Chang Su-yeong (8p) | Seo Pong-su (9p) | 1990 | 26th P'aewang | | start | | Im Seon-keun (6p) | Seo Pong-su (9p) | 1990 | 30th Ch'oegowi | | start |
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