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Under the Stones Problem 6 / Solution
Sub-page of UnderTheStonesProblem6

Solution

[Diagram]
Solution

B1 and B3 sets up the under the stones tesuji.


[Diagram]
Solution

But the throw-in at W4 is also a tesuji to circumvent the under the stones tesuji.


[Diagram]
Solution

The solution is a ko, with White taking the ko first.


[Diagram]
Variation

Things get easy when W4 descends, all Black has to do is to continue with the original plan.


[Diagram]
Variation

This is the standard end result of the under the stones tesuji.



Failure

[Diagram]
Failure

Suppose B7 and B9 proceeds with the under the stones tesuji...


[Diagram]
Failure

White lives after W4, since Black cannot approach at a.



This is a copy of the living page "Under the Stones Problem 6 / Solution" at Sensei's Library.
(OC) 2004 the Authors, published under the OpenContent License V1.0.