Beginner Exercise 49 / Solution

Solution  

The solution is to capture at .

Black lives  

If White tries to escape with , then Black makes two eyes and lives.

White captured I  

White cannot escape now.

White captured II  

White cannot play inside anymore and Black is alive.

Black still lives  

Even with an additional stone helping White to connect, Black lives.

Failure I  

The connection at is a failure, because after , Black has only one eye.

Failure II  

Directly preventing the stone from connecting is also a mistake. After , Black dies with a farmer's hat big eye dead shape.

Failure III  

If here, sets up a ko which Black must win in order to live. Since Black can live unconditionally, this is not the best result.

Continuation of Failure III: too clever  

satyreyes: It does not help black to threaten with . Quite the contrary; after and black is left with a pyramid four in gote and dies.