Beginner Exercise 128 / Solution

Sub-page of BeginnerExercise128

Solution

[Diagram]
White first to kill.  

Karl Knechtel: I believe W1 is correct. B2 at b is answered by W3 at c, and b cannot capture three to make an eye - it's a matter of white's liberties rather than black's lack of them, however.

[Diagram]
White connects out, Black fails to make eyes  
[Diagram]
White connects out, Black fails to make eyes (variation)  

W7 at B4.

[Diagram]
White is persistent  

With black cutting/trying to capture at c, as shown, white applies the same technique on the other side. Now there is a shortage of liberties situation which prevents black from cutting on this side.

[Diagram]
White is persistent (continued)  

White gets to connect whatever black tries, and the best black can do is get a couple of simple kos on top, but these are not life.

[Diagram]
White is persistent (variant)  

Of course the throw-in of B2 does no good either. Now the a points are miai to kill, producing results from the previous diagrams.



Failure

[Diagram]
Failure.  

Attaching at W1 is not so good. After B3, the result is a ko, not as good as a direct kill.



Beginner Exercise 128 / Solution last edited by ryouga on January 22, 2004 - 14:10
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