Beginner Exercise 66 / Solution

Black can kill by playing 1.  

Black can kill by playing at . White cannot play at a because of shortage of liberties. Hence the white group is left with one eye.

Note that and cause the point at b to become a false eye.

Failure 1.  

The push at fails. makes the second eye.

Failure 2.  

The placement at is not good for killing the white group.