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| white | black | year | event | guessed | |
| Tabuchi Koichi (1p) | Fujisawa Shuko (1p) | 1940 | Japan Promotion Tournament, 1940 | | start |
| Hashimoto Utaro (7p) | Iwamoto Kaoru (7p) | 1940 | Japan Promotion Tournament, 1940 | | start |
| Hashimoto Utaro (7p) | Kubomatsu Katsukiyo (7p) | 1940 | Japan Promotion Tournament, 1940 | | start |
| Takagawa Kaku (5p) | Murashima Yoshinori (5p) | 1940 | Japan Promotion Tournament, 1940 | | start |
| Hashimoto Utaro (7p) | Sekiyama Riichi (6p) | 1940 | Win & continue tuchikomi ournament sponsored by Yomiuri newspaper | | start |
| Hosokawa Senjin (6p) | Takagawa Kaku (5p) | 1940 | Japan Promotion Tournament, 1940 | | start |
| Sekiyama Riichi (6p) | Go Seigen (7p) | 1940 | Japan Promotion Tournament, 1940, Later | | start |
| Go Seigen (7p) | Kitani Minoru (7p) | 1940 | Kamakura 10-game match | | start |
| Onoda Chiyotaro (7p) | Kitani Minoru (7p) | 1940 | Japan Promotion Tournament, 1940 | | start |
| Kitani Minoru (7p) | Kubomatsu Katsukiyo (7p) | 1940 | Japan Promotion Tournament, 1940 | | start |
| Kitani Minoru (7p) | Fujisawa Hosai (5p) | 1940 | Japan Promotion Tournament, 1940 | | start |
| Takagawa Kaku (5p) | Handa Dogen (4p) | 1940 | Japan Promotion Tournament, 1940 | | start |
| Hashimoto Utaro (6p) | Maeda Nobuaki (6p) | 1940 | | | start |
| Go Seigen (7p) | Kitani Minoru (7p) | 1940 | Kamakura 10-game match | | start |
| Hashimoto Utaro (7p) | Kubomatsu Katsukiyo (6p) | 1940 | | | start |
| Hashimoto Utaro (7p) | Kubomatsu Katsukiyo (6p) | 1940 | | | start |
| Takagawa Kaku (5p) | Tainaka Shin (4p) | 1940 | Japan Promotion Tournament, 1940 | | start |
| Onoda Chiyotaro (7p) | Fujisawa Kuranosuke (5p) | 1940 | Oteai | | start |
| Takagawa Kaku (5p) | Fujita Toyojiro (4p) | 1940 | Oteai, First Session | | start |
| Kitani Minoru (7p) | Go Seigen (7p) | 1940 | Japan Promotion Tournament, 1940, Later | | start |
| Sakata Eio (4p) | Handa Hayami (4p) | 1940 | Oteai | | start |
| Onoda Chiyotaro (7p) | Hashimoto Utaro (7p) | 1940 | Game to mark promotions of Hashimoto and Onoda, sponsored by Asahi Shinbun | | start |
| Kubomatsu Katsukiyo (6p) | Iwamoto Kaoru (6p) | 1940 | Oteai | | start |
| Hashimoto Utaro (7p) | Kitani Minoru (7p) | 1940 | Kitani vs. Hashimoto 3 games | | start |
| Koizumi Shigeo (4p) | Matsuura Katsuji (2p) | 1940 | Oteai | | start |
