Snapback Problem 29 / Attempts

Sub-page of SnapbackProblem29
[Diagram]

B6 on W3

I think the best Black can do is save some of his stones and let the left part get pinced off. White´s stones are protected by a snapback-threat to both sides. Correct? -- SvenB

unkx80: General idea is correct. However, White's moves are slightly suboptimal. The hint is "snapback", which is in the title of the problem.

[Diagram]

Black connects

Hmmm... I don´t see how White could prevent Black from saving the right half - what am I missing? -- SvenB

unkx80: Actually, you can't prevent Black can saving the stones on the right half. I mean there is an even better way for capturing the stones on the left half.

[Diagram]

Black lives I



[Diagram]

Black lives II



[Diagram]

Black lives III



[Diagram]

Black lives IV


[Diagram]

Solution with snapback

Shaydwyrm: unkx80 must be referring to the fact that the exchange of a for b is unnecessary.

[Diagram]

Continuation

Shaydwyrm: If black resists with B1, W2 creates a snapback. Black can't capture at a because white will then capture at b leaving black dead in the corner. I took Bill's suggestion for extending the right side of the problem in order to clarify that b is not the edge of the board, so capturing there does not create a ko. I don't know if anyone else was confused by that, but I was...


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