BQM4

  Difficulty: Advanced   Keywords: EndGame, Life & Death, Tactics, Question
[Diagram]

Can Black live?

White to play next. Can Black live in the corner?


HolIgor: My answer is yes. Or have a considerable profit. Black is a ko-master here. Of course, seki is equal to life, too.

[Diagram]

One of the variations

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Continuation

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White has a single ko threat

I think that Black should be satisfied with the exchange.

I don't know if this is the best solution for both Black and White; but it seems that White has big problems.


[Diagram]

Another variation

[Diagram]

Seki


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