sjoelund (29-30k): Since the standard response for black at a is to invade at , don't we do the same here? If black plays , we answer .
unkx80: Nice attempt there, but this is not solved. and allows Black to connect outside.
If we block at , forces . Black then plays and has a living formation.
unkx80: at a lives unconditionally.
ichundso?: a "a" too.
ichundso? This is the best result for white i can think about. at wont be good, because black wont play at since he can get 2 eyes (no need to escape anymore as seen below). Note that avoids a ko fight because if he cant push at a if