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BeginnerExercise56

 

Beginner Exercise 56 Solution
   

[Diagram]
Diag.: Black first to live.

Karl Knechtel: Don't be Greedy. The sagari (hang down) seals off enough eye space for Black's two eyes. White's hane won't work here: Black 3 is all that is needed to divide the space as White can't cut at a (because of damezumari (shortage of liberties)). (Is that a record for links in one paragraph? ;) )

unkx80: So far so good. =) How does Black respond if White 2 is played at 3 instead?

Karl Knechtel: White 2 at 3, Black 3 at 2, White 4 at a appears to make seki... and any other Black 3 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 eye space 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. The points a and b are miai for the kill.





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