122WS notcher

    Keywords: Life & Death, Shape
[Diagram]
122WS  

This is a critical notcher. Black can live by playing at the vital point a, after which the two squared points are miai to make a second eye. If the two marked corners of the notch are empty, the same holds true. Anything weaker than this shape (shorter legs, a weak and an empty corner) is dead.


122WS notcher last edited by TheBigH on February 3, 2016 - 08:21
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