White's strongest resistance leads to seki.
This doesn't work either.
If at either a or b then white takes the other point, reducing the eyespace to a bulky five.
If at c then at a kills, while at d will be answered by at b.
here might look promising, but it's also a mistake which is punished by the clever sequence up to .
If black plays at a then at b sets up a snapback.
at b is answered by at a capturing the stones on the left.