In addition to the hoshi (4-4, star point) there is now present.
White invades. Black blocks off the wider side. In this position, making the hanging connection with is a safe, thick move.
above isn't the usual play - White can die here. See 4463 enclosure, for the standard ko variation. Charles Matthews
This joseki most often arises when is a response to
. In this position, connecting at
can be considered almost obligatory.
What happens if Black tries to kill the invasion stones with here?
This is Black's most severe continuation. The fight will depend on the surrounding stones.
Locally, White is dead: after White b, Black c, d and e are miai. Note that cannot be played at a.
Rich: I can't see a good way for Black to stop White sneaking out with the clamp; couldn't this be better than the previous example, depending on surrounding stones?
Charles That's one from Get Strong at Crawl.
Rich: Sometimes better a crawling weasel than a dead lion, no? :) I see the point - if you have somewhere to crawl to, you're probably better off not invading at the 3-3 in the first place,
Charles Depends a bit; but the 4463 enclosure 2-4 approach might sometimes be more useful. Anyway,
of the initial diagram seems to be a pro move.
What about this?
unkx80: The result should be a ko. See tripod group for a more detailed discussion.
[Joonas Tyystjärvi]: Supposing that the cutting point to the right of is not usable, does this work? It seems to me that after
, White is alive - are Black's moves correct? (Of course, the result is locally very bad for White.)
I think Black can kill by playing at
instead. If Black omits
, then White a Black b
makes life - Andreas
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