GokyoSeimyoVolume3Problem2/Attempts

[Diagram]

Black captures

White is caught in a double damezumari.

[Diagram]

Very difficult ko

White can try W4 and W6, but the resulting ko is extremely difficult, with three approach moves required, and black taking the ko first.

[Diagram]

B9 @ B7, W10 @ B5, B11 @ a

B5 is the common way to avoid such a ko, but Black cannot avoid the ko here, because white now has just enough liberties


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(OC) 2009 the Authors, published under the OpenContent License V1.0.
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