223WN notcher

    Keywords: Life & Death

Alive

[Diagram]

223N

Contrary to 223WS notcher, in the neutral case, Black can play B6. This however is not quite related to the strength of the notcher but due to the lack of liberties in the former case, whereas here there is a liberty at the marked spot.

So it is comparable to the 223WS notcher with outside liberties.


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