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| white | black | year | event | guessed | |
| Hosokawa Senjin (7p) | Takagawa Kaku (7p) | 1950 | Japan Promotion Tournament, 1950 | | start |
| Takagawa Kaku (7p) | Fujisawa Kuranosuke (9p) | 1950 | 6th Honinbo League | | start |
| Kitani Minoru (8p) | Hasegawa Akira (7p) | 1950 | 6th Honinbo League | | start |
| Yamabe Toshiro (5p) | Hoshino Toshi (3p) | 1950 | Oteai | | start |
| Sakata Eio (7p) | Kitani Minoru (8p) | 1950 | 6th Honinbo League | | start |
| Iwamoto Kaoru (8p) | Takagawa Kaku (7p) | 1950 | 6th Honinbo League | | start |
| Sakata Eio (7p) | Takagawa Kaku (7p) | 1950 | 1st Nihon Ki-in Highest Dans Tournament | | start |
| Kitani Minoru (8p) | Fujisawa Kuranosuke (9p) | 1950 | 5th Honinbo League | | start |
| Kitani Minoru (8p) | Hashimoto Utaro (8p) | 1950 | 5th Honinbo League | | start |
| Hasegawa Akira (7p) | Hayashi Yutaro (7p) | 1950 | 5th Honinbo League | | start |
| Takagawa Kaku (7p) | Kaji Kazutame (3p) | 1950 | Reimeikai meeting | | start |
| Takagawa Kaku (7p) | Kitani Minoru (8p) | 1950 | 5th Honinbo League | | start |
| Go Seigen (8d) | Sakata Eio (7d) | 1950 | Sponsored by Yomiuri Shinbun | | start |
| Go Seigen (8p) | Sumino Takeshi (6p) | 1950 | Go Seigen vs. 10 High dan players | | start |
| Fujisawa Kuranosuke (9p) | Suzuki Kensho (5p) | 1950 | 5th Honinbo League | | start |
| Hashimoto Utaro (8p) | Yamabe Toshiro (5p) | 1950 | East-West Japan W&C Tournament | | start |
| Hashimoto Utaro (8p) | Hasegawa Akira (7p) | 1950 | 5th Honinbo League | | start |
| Hashimoto Utaro (8p) | Iwamoto Kaoru (8p) | 1950 | 5th Honinbo Final | | start |
| Shinohara Masami (6p) | Fujisawa Shuko (5p) | 1950 | Japan Promotion Tournament, 1950 | | start |
| Iwamoto Kaoru (8p) | Hashimoto Utaro (8p) | 1950 | 5th Honinbo Final | | start |
| Iwamoto Kaoru (8p) | Hashimoto Utaro (8p) | 1950 | 5th Honinbo Final | | start |
| Hashimoto Utaro (8p) | Iwamoto Kaoru (8p) | 1950 | 5th Honinbo Final | | start |
| Fujisawa Shuko (5p) | Kuroda Yukio (4p) | 1950 | Japan Promotion Tournament, 1950 | | start |
| Kitani Minoru (8p) | Nabeshima Ichiro (6p) | 1950 | Japan Promotion Tournament, 1950 | | start |
| Takagawa Kaku (7p) | Sato Sunao (5p) | 1950 | Japan Promotion Tournament, 1950 | | start |
