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| white | black | year | event | guessed | |
| Kitani Minoru (8p) | Mitsuhara Itaro (7p) | 1950 | 6th Honinbo | | start |
| Fujisawa Kuranosuke (9p) | Takagawa Kaku (7p) | 1950 | 6th Honinbo | | start |
| Kitani Minoru (8p) | Takagawa Kaku (7p) | 1950 | 6th Honinbo | | start |
| Miyashita Shuyo (7p) | Takagawa Kaku (7p) | 1950 | 6th Honinbo | | start |
| Sakata Eio (7p) | Takagawa Kaku (7p) | 1950 | Honinbo, 6th | | start |
| Iwamoto Kaoru (8p) | Fujisawa Kuranosuke (9p) | 1950 | 6th Honinbo League | | start |
| Hashimoto Utaro (8p) | Go Seigen (9p) | 1950 | Three-game match sponsored by Mainichi Shinbun | | start |
| Iwamoto Kaoru (8p) | Hasegawa Akira (7p) | 1950 | 6th Honinbo League | | start |
| Kitani Minoru (8p) | Hasegawa Akira (7p) | 1950 | 6th Honinbo League | | start |
| Go Seigen (9p) | Hashimoto Utaro (8p) | 1950 | Second 10-game match sponsored by Yomiuri Shinbun | | start |
| Takagawa Kaku (7p) | Iwamoto Kaoru (8p) | 1950 | 6th Honinbo League | | start |
| Takagawa Kaku (7p) | Kitani Minoru (8p) | 1950 | 6th Honinbo League | | start |
| Fujisawa Kuranosuke (9p) | Sakata Eio (7p) | 1950 | 6th Honinbo League | | start |
| Hasegawa Akira (7p) | Sakata Eio (7p) | 1950 | 6th Honinbo League | | start |
| Kitani Minoru (8p) | Sakata Eio (7p) | 1950 | 6th Honinbo League | | start |
| Fujisawa Kuranosuke (9p) | Takagawa Kaku (7p) | 1950 | 6th Honinbo League | | start |
| Kitani Minoru (8p) | Fujisawa Hosai (9p) | 1951 | Japan Promotion Tournament, 1951 | | start |
| Go Seigen (9p) | Hasegawa Akira (7p) | 1951 | Go vs. 8- and 7-dans Series, sponsored by Yomiuri Shinbun | | start |
| Kitani Minoru (8p) | Iwamoto Kaoru (8p) | 1951 | Japan Promotion Tournament, 1951 | | start |
| Hashimoto Utaro (8p) | Kubouchi Shuchi (6p) | 1951 | Honinbo vs. Five Players, sponsored by Kyodo Tsushin | | start |
| Fujisawa Kuranosuke (9p) | Miyashita Shuyo (7p) | 1951 | Oteai | | start |
| Hayashi Yutaro (7p) | Takagawa Kaku (7p) | 1951 | Japan Promotion Tournament, 1951 | | start |
| Shinohara Masami (7p) | Takagawa Kaku (7p) | 1951 | Japan Promotion Tournament, 1951 | | start |
| Go Seigen (9p) | Fujisawa Kuranosuke (9p) | 1951 | 4-game match sponsored by Mainichi Shinbun | | start |
| Go Seigen (9p) | Fujisawa Kuranosuke (9p) | 1951 | Ten-game match sponsored by Yomiuri Shinbun | | start |
