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BQM61
Keywords: Life & Death, Question
I received the following question about the carpenter's square and forward it to SL while I'm thinking about it myself.
White 1 is said to be incorrect because it allows Black to live in seki.
After this position two variations arise: a and b.
After 2, Black's seven-space big eye space is of living kind. White can't make an eye in it, and neither can she almost fill with a killing shape. So far so good.
The second variation as given in the book of my correspondent is this one. jsha: Isn't 7 suicide? Dieter: Yes, I think 5 and 7 must be inverted. I'll WME this page soon. Bill: 5 and 7 corrected.
Now, Black throws in and then the book says something like White must connect at a and Black captures at b: White can't play c because of shortage of liberties. So Black lives. However, ...
White simply captures a stone, letting Black cut her stones. Next, she fills a Black liberty. Black is dead. ... But I think I found it already.
Yes. This is a position that is often given as a life-and-death problem, and 1 is the correct answer. --TimHunt This is a copy of the living page "BQM61" at Sensei's Library. ![]() |