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| white | black | year | event | guessed | |
| Hashimoto Utaro (6p) | Kubomatsu Katsukiyo (6p) | 1939 | Uchikomi Win & Continue sponsored by Yomiuri Shinbun | | start |
| Go Seigen (6p) | Murashima Yoshinori (5p) | 1939 | Japan Promotion Tournament, 1939, Spring | | start |
| Kato Shin (7p) | Hashimoto Utaro (6p) | 1939 | Uchikomi Win & Continue sponsored by Yomiuri Shinbun | | start |
| Go Seigen (6p) | Kitani Minoru (7p) | 1939 | Japan Promotion Tournament, 1939, Spring | | start |
| Go Seigen (7p) | Kitani Minoru (8p) | 1939 | Kamakura 10-game match | | start |
| Hashimoto Utaro (6p) | Sakata Eio (4p) | 1939 | Japan Promotion Tournament, 1939, Spring | | start |
| Fujisawa Shuko (9p) | Suzuki Tsuna (3p) | 1939 | Insei League | | start |
| Maeda Nobuaki (6p) | Go Seigen (7p) | 1940 | 1st Honinbo | | start |
| Sekiyama Riichi (6p) | Go Seigen (7p) | 1940 | 1st Honinbo | | start |
| Iwamoto Kaoru (6p) | Hashimoto Utaro (6p) | 1940 | Japan Promotion Tournament, 1940 | | start |
| Go Seigen (7p) | Kato Shin (7p) | 1940 | 1st Honinbo | | start |
| Kitani Minoru (7p) | Kato Shin (7p) | 1940 | 1st Honinbo | | start |
| Go Seigen (7p) | Kitani Minoru (7p) | 1940 | | | start |
| Sekiyama Riichi (6p) | Kubomatsu Katsukiyo (6p) | 1940 | 1st Honinbo | | start |
| Go Seigen (7p) | Maeda Nobuaki (6p) | 1940 | 1st Honinbo | | start |
| Kubomatsu Katsukiyo (6p) | Maeda Nobuaki (6p) | 1940 | 1st Honinbo | | start |
| Segoe Kensaku (7p) | Maeda Nobuaki (6p) | 1940 | 1st Honinbo | | start |
| Go Seigen (7p) | Suzuki Tamejiro (7p) | 1940 | 1st Honinbo | | start |
| Kubomatsu Katsukiyo (7p) | Fujisawa Kuranosuke (5p) | 1940 | Oteai | | start |
| Kitani Minoru (7p) | Go Seigen (7p) | 1940 | | | start |
| Hashimoto Utaro (7p) | Hasegawa Akira (5p) | 1940 | Japan Promotion Tournament, 1940 | | start |
| Go Seigen (7p) | Hosokawa Senjin (6p) | 1940 | Japan Promotion Tournament, 1940, Later | | start |
| Takagawa Kaku (5p) | Kajiwara Takeo (3p) | 1940 | Japan Promotion Tournament, 1940 | | start |
| Hashimoto Utaro (7p) | Maeda Nobuaki (6p) | 1940 | Japan Promotion Tournament, 1940 | | start |
| Hashimoto Utaro (7p) | Murashima Yoshinori (5p) | 1940 | Japan Promotion Tournament, 1940 | | start |
