Beginner Exercise 49 / Solution

Sub-page of BeginnerExercise49

The solution is to capture at B1.

Black lives  

If White tries to escape with W2, then Black B3 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 B1 is a failure, because after W2, Black has only one eye.

Failure II  

Directly preventing the white+circle stone from connecting is also a mistake. After W2, Black dies with a farmer's hat big eye dead shape.

Failure III  

If B1 here, W2 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 B1. Quite the contrary; after W2 and B3 black is left with a pyramid four in gote and dies.

splice, unkx80

Beginner Exercise 49 / Solution last edited by on May 28, 2012 - 13:07
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