Snapback Problem 29 / Solution

Sub-page of SnapbackProblem29
[Diagram]

Solution

Surely W1 is the first move, since playing anywhere else allows Black at W1 to make two eyes.

[Diagram]

Needless?

Perhaps this diagram is almost needless? If B2, W3 kills.

[Diagram]

Solution

If B2 connects, then W3 cuts. The four Black stones at the corner has only two liberties...

[Diagram]

Solution

But if B4 ataris, then bingo, W5 is a snapback.

[Diagram]

Solution

This leaves Black with only one eye.

[Diagram]

Suboptimal

W3 to W5 does the job as well, but it is suboptimal. The sacrifice of W3 is not neccessary here.

[Diagram]

Variation

What about B2? Next, a and b seems miai...

[Diagram]

Variation

But W3 solves the problem. Black suffers from double shortage of liberties yet again.


This is a copy of the living page "Snapback Problem 29 / Solution" at Sensei's Library.
(OC) 2007 the Authors, published under the OpenContent License V1.0.
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