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KanazawaProblem50

 

Kanazawa Problem 50 / Solution
Sub-page of KanazawaProblem50

[Diagram]
Main line

[Diagram]
Continuation

White cannot protect at a because of shortage of liberties and Black will make two eyes.



[Diagram]
Some more about the position

Black's formation is a carpenter's square. The vital point of this shape is the marked point (2-2). If White plays there instead of at the marked stone, the position becomes ko.



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This is a copy of the living page "Kanazawa Problem 50 / Solution" at Sensei's Library.
(OC) 2004 the Authors, published under the OpenContent License V1.0.