A tesuji is required, eh? Well, the simplistic move at obviously doesn't work, maybe I'll sacrifice something...
Yep, black can do this. at a doesn't prevent
either. White cannot engage in self-indulgent reading! Playing
immediately at
doesn't work either - black has enough liberties to push at
and falsify the other eye.
Black can't play at a because of a shortage of liberties created by . An approach move at b or c is required first, which gives white enough time to play a.
at a obviously doesn't work (white captures saving the eye), nor does b, which makes a sente for white.
at c has the same result as this diagram. Playing
at d is easily refuted by
at
making for two real eyes on the bottom. There are a couple large ko threats left here for black;
at d would prevent one at the cost of one point.