Beginner Exercise 93 / Solution

Black first to achieve the best possible result.  

KarlKnechtel: I think this is Black's best start.

Black first to achieve the best possible result  

Black captures the rest of the white stones eventually; he's ahead in the semeai.

Black first to achieve the best possible result  

This double atari is fatal. If White captures, Black also captures and puts White back in atari, while Black's endangered group still has two liberties.

Black first to achieve the best possible result  

Black still wins the race this way:

Black first to achieve the best possible result  

White is caught in a snapback.

Black failure  

If Black starts on the wrong side, White just sacrifices the two stones and lives easily.