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BQM 149
Path: BigQuestionMark   · Prev: BQM148   · Next: BQM150
    Keywords: Life & Death, Question

In-game life and death query

[Diagram]
Catching the corner

Rich: In a game last night, I managed to play W in sente; my opponent thought a group that big (10-12 pts) must be able to live - until I played W1.

Did black have a chance at this point? We played it out and couldn't see anything; is 1 also the vital point for black?


[Diagram]
Black dies

Hans: Black seems to die. The only chance for black is to connect at a instead of B2 and put all his hopes on a seki.

[Diagram]
Seki?

Hans: May be this is a seki. Later I may have more time to examine this.

Rich: Interesting position; I keep coming up with death by rabbit, though...

[Diagram]
Shortage of liberties

Dave: This W3, W5 is conceptually incorrect I think. After B6 White is short of liberties. Black has time to live at a.


[Diagram]
Dead?

Dave: Instead does simply W3 kill Black?


[Diagram]
What now?

Dave: But what happens after this B2? Rich: I'm currently looking through variations of 'a' or 'b'; maybe a ko?

f3etoiles No, this dies too :


[Diagram]
The continuation

unkx80: However, it is not known what happens when Black plays at a...



[Diagram]
What now?

Dieter: Here Black dies either by being cut or rabbity six. But if B4 at a he lives. I keep reading.



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This is a copy of the living page "BQM 149" at Sensei's Library.
(OC) 2004 the Authors, published under the OpenContent License V1.0.