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KanazawaProblem43

 

Kanazawa Problem 43 / Solution
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[Diagram]
Main line

The black group makes a comb formation with unfinished 'legs'. Here B1 is the vital point.


[Diagram]
Variation 1

[Diagram]
Variation 2


[Diagram]
Failure 1

Knowing the comb formation tempts one to extend the leg with B1. White plays W2 to create a bulky five and plays W4 at the vital point.


[Diagram]
Failure 1 variation


[Diagram]
Failure 2

So, since the WC stone seemed to be the one spoiling the comb party, Black tries B1 here. Up to W6 he gets a ko.



[Diagram]
Failure 3?

Black extending to enlarge his space seems to work. Anyone counter this diagram ?


[Diagram]
Failure 3?

How about W2 to get an advantageous ko?



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This is a copy of the living page "Kanazawa Problem 43 / Solution" at Sensei's Library.
(OC) 2004 the Authors, published under the OpenContent License V1.0.