In the first stage, 32 unseeded 5, 6 and 7 dans were sorted into
five knockout groups.
The winners of these groups (Sakata Eio 7 dan, Mitsuhara Itaro
7 dan, Miyashita Shuyo 7 dan, Shinohara Masami 6 dan and Magari
Reiki 5 dan) advanced to the second stage along with the five
players who had 3-3 scores in the 5th Honinbo league (Fujisawa
Kuranosuke 9 dan, Hasegawa Akira 7 dan, Hayashi Yutaro 7 dan,
Kitani Minoru 7 dan, Takagawa Kaku 7 dan).
In the second stage, players were eliminated after two losses.
First round (1950-08-10,11)
|Fujisawa Kuranosuke||Miyashita Shuyo||B+5.5|
|Takagawa Kaku||Kitani Minoru||W+R|
|Mitsuhara Itaro||Hasegawa Akira||B+2.5|
|Sakata Eio||Hayashi Yutaro||B+R|
|Magari Reiki||Shinohara Masami||B+R|
Second round (1950-08-16,17)
|Takagawa Kaku||Fujisawa Kuranosuke||B+R|
|Mitsuhara Itaro||Kitani Minoru||W+2.5|
|Miyashita Shuyo||Hayashi Yutaro||B+8.5|
|Shinohara Masami||Hasegawa Akira||W+5.5|
|Magari Reiki||Sakata Eio||W+R|
Third round (1950-08-23,24)
|Fujisawa Kuranosuke||Mitsuhara Itaro||B+R|
|Takagawa Kaku||Miyashita Shuyo||B+R|
|Hasegawa Akira||Magari Reiki||B+R|
The five survisors of this stage advanced into the league along with
Iwamoto Kaoru 8 dan, who was defeated in the previous Honinbo title match.