BeginnerExercise88/Attempts

Sub-page of BeginnerExercise88
[Diagram]
Black first to live  

KarlKnechtel: This is the best I can do right now... Black already has one eye, and the only plausible way to make a second is by capturing. B1 is a natural way to start - anything other than W2 allows B1 at two to capture something and make the eye.

[Diagram]
Black first to live  

B3 is double atari, and connecting still leaves White in atari. So White elects to save the larger group of stones here.

[Diagram]
Black first to live  

B5 plays atari again, starting a ko. If White chooses to connect instead (at W6), B7 puts the pressure back on.


Nando: Good try, but there's a better way to get life (without ko)

[Diagram]
Black first to live  

B1 is the key. White has no choice but to connect at W2. Then, B3 gets the second eye because of the cutting point at a.


[Diagram]
White can't destroy the eye  

With the sequence up to B9, Black captures White's group.

Gabriel: Suppose W8 was played at B9. What then?

Nevermind, just saw White would be in atari.


[Diagram]
alive  

So, White must connect and Black then ensures life.


What about this?

[Diagram]
black kills?  

Actually, B is dead in gote, being unable to fill the circled point. B fills, W fills, B can't atari while W can.



BeginnerExercise88/Attempts last edited by Gabriel on September 26, 2012 - 06:53
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