BQM80
This is a problem in a book I'm reading:
Black to play and capture the two white stones. The book tells me Black's best move is a, and White's best response is c, and I understand the rest of the sequence. But why is White's best move c? What happens if White plays b instead?
(note: Thanks to everyone. Misread the book. Black plays at b not a ...)
unkx80: Was there a typo in the book? I think the solution should be this.
icepick: This is what is termed the Crosscut Tesuji, from TesujiTheBook. unkx80's solution is correct.
This is a given variation that can be tricky for Black. As Dieter pointed out,
is the correct follow up.
This is Dieter's proposed move (
). It looks good - this way Black not only captures the two cutting stones, but also the marked stone and
. - Andre Engels, after improvement/correction by Dieter
unkx80: While you are at it consider this one. Of course you would have known the correct solution already, but what if...?
Andre Engels: Dieter's descent again resolves the problem. Charles It may do; but now White at a is a reading problem. Andre Engels: The solution seems to be that Black connects at b and wins the capturing race by one move. But this position is surely more complicated than the books usually show.
Bill: Shouldn't Black descend again with
? Then it's me ari me nashi. The above is one variation. If
is at
,
is at
.
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at a instead.
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2024 the Authors,
published under the ![Sensei's Library [Welcome to Sensei's Library!]](../../images/stone-hello.png)