In Kanazawa Problem 75 / Solution, the following response is untreated:
I believe that the /
exchange is unnecessary, and that
at
already forces
. Otherwise
at
seems to live or get out very quickly. So here, IMHO, is the main line.
White 11 at a makes an eye.
The variations at are similar to Kanazawa Problem 75 / Solution.
Other responses at run into shortage of liberties.
@
If Black a, b, or c, White d.