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UnderTheStonesPro...

 

Under the Stones Problem 4 / Solution
Sub-page of UnderTheStonesProblem4

[Diagram]
Ko

This is a ko. Assuming W6 is a ko threat and black answers with B7 then black cannot kill by playing under the stones as shown in the next two diagrams.


[Diagram]
Continuation 1

[Diagram]
Continuation 2

And white is alive because of his second eye at a.


[Diagram]
White's resistance is not enough

W2 is not the best move. B7 under BC.



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This is a copy of the living page "Under the Stones Problem 4 / Solution" at Sensei's Library.
(OC) 2004 the Authors, published under the OpenContent License V1.0.