Snapback Problem 20 / Solution

Sub-page of SnapbackProblem20

Solution

[Diagram]

Solution

White needs to give atari to the marked Black stone, otherwise Black will take one of the two remaining liberties of the white group at the top or take the single White stone.

The solution is for White to give atari with W1, and then to set up a ko in the corner with W3. White needs to win this ko twice in order to kill the Black group.

[Diagram]

Reference

For reference, here is the snapback which should be considered.



Failure

[Diagram]

Reference

W1 is a careless move. If B2 carefully descends and not carelessly capture at a, then White is completely dead.


This is a copy of the living page "Snapback Problem 20 / Solution" at Sensei's Library.
(OC) 2014 the Authors, published under the OpenContent License V1.0.
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