Beginner Exercise 111 / Solution

White kills  

will simply kill Black by a squared four.

White failure 1  

here is a mistake. lives with bent four.

White failure 2  

here is another mistake. After atari, White found that playing at a is suicide, so it is not possible to almost fill the eye space into a bulky five.

Black first  

Black first will play and . This results in the same diagram as "White failure2" diagram, in which Black lives.

If at , then Black can even play tenuki.

Black failure 1  

If Black atari at , then kills Black in a bulky five.