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Tsumego From Games 18
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    Keywords: Problem

[Diagram]
Diag.: White at the corner

According to the record from Neostone, this position is from 2002-10-28, Yun Chun Ho? 9d (W) vs. Kim Seung-chun 7p (B).

Is White alive in the corner ?



Lucky I cannot believe a pro could get this wrong: maybe it was a blind spot.

-- Oops. I meant that White lives with tenuki. Black said that Black cannot kill White even if Black plays first.


[Diagram]
Diag.: White lives (8 at 3)

White 1 is the answer, it gives Black damezumari. Black 2 looks like a vital point but it doesn't work.


[Diagram]
Diag.: Continuation

White is alive.



Example of Black's failure:

[Diagram]
Diag.: Hane

[Diagram]
Diag.: hane (cont)

[Diagram]
Diag.: hane (cont2)

[Diagram]
Diag.: hane (variation)


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This is a copy of the living page "Tsumego From Games 18" at Sensei's Library.
(OC) 2003 the Authors, published under the OpenContent License V1.0.