OK i'll have a go for W!
This ends in gote for W
Bill: Too deep.
And this ends in sente but steals much less territory
unkx80: Sente but loses points. No need to think too hard...
bobulatorm Oh! Of course! Is this right?
argh i've just seen another route although i think B should play 2 at 5. will try again later. sorry for my lack of reading skills!
Dieter: yes, this should be the solution
Bill: Yes, is the right reply to
. :-)
ichundso?: i think this is very very slightly better, because "a" is a ko threat that destroyes a black ko threat at "b"
What about when Black plays first?
Dieter: If Black goes first, he wins two points and leaves a half-point ko. The local tally is 1, so the miai value is 2 1/2 ??
Bill: It has been a while, so I'll reply.
is orthodox play. Later,
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is sente.
The hane, , is correct only in very special circumstances, where Black is komaster and the ambient temperature is very low. To win the ko Black would need some very large ko threats, but then Black could pick up an extra point.
Last question: How much is this White sente worth?