Beginner Exercise 49 / Solution

Sub-page of BeginnerExercise49
[Diagram]
Solution  

The solution is to capture at B1.

[Diagram]
Black lives  

If White tries to escape with W2, then Black B3 makes two eyes and lives.

[Diagram]
White captured I  

White cannot escape now.

[Diagram]
White captured II  

White cannot play inside anymore and Black is alive.


[Diagram]
Black still lives  

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


[Diagram]
Failure I  

The connection at B1 is a failure, because after W2, Black has only one eye.

[Diagram]
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.

[Diagram]
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.

[Diagram]
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 83.86.230.246 on May 28, 2012 - 13:07
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