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| | white | black | year | event | guessed | | | Cho Chikun (9p) | Nakazono Kiyozo (7p) | 1990 | 28th Pro-Am Honinbos Match | | start | | 廖桂永 (9p) | Obuchi Morito (1p) | 1990 | 中日对抗赛 | | start | | Chin Kaei (6p) | Obuchi Morito (6p) | 1990 | 38th NHK Cup | | start | | 廖桂永 (9p) | Ogata Masaki (1p) | 1990 | 中日对抗赛 | | start | | Fukui Susumu (7p) | Ohira Shuzo (9p) | 1990 | 3rd Fujitsu Cup | | start | | Honda Kunihisa (9p) | Ohira Shuzo (9p) | 1990 | 38th NHK Cup | | start | | Ishii Shinzo (9p) | Ohira Shuzo (9p) | 1990 | 38th NHK Cup | | start | | Komatsu Hideki (7p) | Ohira Shuzo (9p) | 1990 | Gosei, 15th | | start | | O Meien (8p) | Ohira Shuzo (9p) | 1990 | 38th NHK Cup | | start | | Awaji Shuzo (9p) | O Meien (8p) | 1990 | 38th NHK Cup | | start | | Chino Tadahiko (9p) | O Meien (8p) | 1990 | 38th NHK Cup | | start | | Yamashiro Hiroshi (9p) | O Meien (8p) | 1990 | 38th NHK Cup | | start | | Cho Chikun (9p) | O Rissei (9p) | 1990 | Kakusei, 12th | | start | | Fujisawa Shuko (9p) | Otake Hideo (9p) | 1990 | 37th NHK Cup | | start | | Kobayashi Koichi (9p) | Otake Hideo (9p) | 1990 | Kisei, 14th | | start | | Kobayashi Koichi (9p) | Otake Hideo (9p) | 1990 | 23rd Hayago Championship | | start | | Takemiya Masaki (9p) | Otake Hideo (9p) | 1990 | 2nd Kirin Cup team tournament | | start | | Yoda Norimoto (7p) | Otake Hideo (9p) | 1990 | Honinbo, 45th | | start | | Kajiwara Takeo (9p) | Oyama Kunio (9p) | 1990 | 38th NHK Cup | | start | | Cho Chikun (9p) | Rin Kaiho (9p) | 1990 | Meijin, 15th | | start | | Ishida Yoshio (9p) | Rin Kaiho (9p) | 1990 | 38th NHK Cup | | start | | Kamimura Kunio (8p) | Rin Kaiho (9p) | 1990 | 37th NHK Cup | | start | | Kato Masao (9p) | Rin Kaiho (9p) | 1990 | 38th NHK Cup | | start | | Kobayashi Koichi (9p) | Rin Kaiho (9p) | 1990 | 23rd Hayago Championship | | start | | Takagi Shoichi (9p) | Rin Kaiho (9p) | 1990 | 2nd Kirin Cup team tournament | | start |
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