Beginner Exercise 332 / Solution

Seki  

and make the corner a seki and nullify White's territory (6 points after White playing inside).

Is it really seki?  

Later, can capture two stones, but then has to give way after - leading ultimately to the same score as the seki.

Result after follow-up  

4 points for each side - the net is still zero. White can use - above and a as two ko threats for small ko fights.