Snapback Problem 15 / Solution

Sub-page of SnapbackProblem15

Answer: Black owns 5 points of territory.

Reason: Black does not need to defend at all.

[Diagram]

Black does not need to defend

Even if White has filled up all the outside liberties, there is no need for Black to defend against the double atari at a.

[Diagram]

Illustration

If W1 double atari, then B2 connects. When W3 captures two black stones...

[Diagram]

The snapback

.. B4 is the snapback.

Now the territory count: When we cancel out White's two dead stones against Black's two prisoners, we get back 5 points.


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(OC) 2014 the Authors, published under the OpenContent License V1.0.
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