was looking at all corner positions and found this one missing
And before writing a page with mistakes I would like to have it here as problem
what is the status of this four on the fourth line in the corner??
Well, there is one stone on each line, 1 to 4.
ThorAvaTahr: I am quite sure that black can live if he plays. But I feel death if white starts. Even the crude hane seems to kill black.
hhw: After there doesn't seem to be much Black can do. Any Black play on the red squares can be (crudely) answered by White at c.
hhw: Black at a and c are the most interesting. But it looks like Black at a and b are defeated by White at x, and Black at c can't do much after White y.