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BeginnerExercise56

 

Beginner Exercise 56 Solution
   

[Diagram]
Diag.: Black first to live.

KarlKnechtel: Don't Be Greedy. The sagari seals off enough EyeSpace for black's two eyes. White's hane won't work here; black 3 is all that is needed to DivideTheSpace as white can't cut at a (due to damezumari). (Is that a record for links in one paragraph? ;) )

unkx80: So far so good. =) How do black respond if white 2 plays at 3 instead?

KarlKnechtel: White 2 at 3, black 3 at 2, white 4 at a appears to make seki... and any other black 3 in response would seem to let white connect underneath. So I suppose this is the main line.

unkx80: Yes. I reproduced the main line below.


[Diagram]
Diag.: Main Line.

[Diagram]
Diag.: Black failure

Black 1 fails here; it allows white to throw in. Black's eventual EyeSpace will consist of at most the marked area, and white can play 4 at the squared point to kill that space (though I don't even think it's necessary immediately).


[Diagram]
Diag.: Black failure 2

Sagari on the wrong side. 'a' and 'b' are miai for the kill.





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