Ambiguous Ko

    Keywords: Ko

Bill Spight: Some years ago I coined the term, sente ko, which seems to be catching on. But looking at this classic example, I realize that it is actually ambiguous, as in ambiguous position.

[Diagram]

Ambiguous ko

If White takes the ko she raises the local temperature from 1/3 to 7/9 by threatening to take again. If Black replies at B2 the temperature drops back down to 1/3. That means that this position is ambiguous, having both sente and gote properties.


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(OC) 2011 the Authors, published under the OpenContent License V1.0.
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