Beginner Exercise 1 / Solution

Kill  

White is unable to make two eyes now and is thus dead.

Only one eye  

Let us assume that Black has filled all the outside liberties, with the stones. If White now plays at a or b then Black plays on the other point and captures all stones. So what if Black plays first?

Black plays first  

If , White can capture three stones with . But ...

Kill  

... then kills White.