Beginner Exercise 276 / Solution
There are two eye spaces here, the left one promising two eyes.
After
securing one eye,
destroys the other eye.
on a works, too, but leaves an additional ko-threat.
When Black secures the right eye first,
destroys the left eye.
There is no chance for forcing a ko, because after
,
captures two stones.
After
, White killing the left eye first is not a good idea, because
creates another potential eye.