RTG Problem 41 / Attempts

interesting  

zinger: threatens a, and if , then leaves white short of liberties and unable to push in at b, leaving only one eye.

interesting  

This way, white can live with part of the group, while black captures five stones. But:

ko  

If black wants the whole corner, he can try here, and starts a ko.

White dies  

There is no ko, white dies unconditionally like this. He doesn't have enough liberties. Looks like the solution?

zinger: ah, fascinating. Good find !