Beginner Exercise 107 / Solution

Ko  

After , can make ko. threatens a snapback as in the previous Exercise. Usually this is the best way for White.

Alternative ko  

here is usually inferior because it adds a point of territory to Black if he wins the ko. On the other hand, the move has the advantage of not reducing liberties of the eyeless White wall.

White resolves the ko  

In this case, White resolves the ko in an unusual way with . Now if Black takes the ko, White captures the stones. It would be a mistake for White to fill the ko, because that just leads to another ko.

Black lives  

If here, then lives as per rectangular six. Now a and b are miai for life.