For lessons, as well as threads about specific moves, and anything else worth studying.
lightvector
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by lightvector Sun Sep 11, 2011 10:04 am
I have a question about a tsumego. In Davies' book "Tesuji", the following problem is given, with the following solution.
$$c
Click Here To Show Diagram Code [go]$$c
But what if white responds this way?
$$c
Click Here To Show Diagram Code [go]$$c
I'm having difficulty reading this out. Can black capture white from here? There are a lot of variations where white gets into a capturing race with the corner. And there's also the problem that unless black spends a whole move to defend D7, white can escape there if he ever has at least 3 liberties on his turn.
daal
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by daal Sun Sep 11, 2011 11:01 am
lightvector wrote:
But what if white responds this way?
$$c
Click Here To Show Diagram Code [go]$$c
I'm having difficulty reading this out. Can black capture white from here? There are a lot of variations where white gets into a capturing race with the corner. And there's also the problem that unless black spends a whole move to defend D7, white can escape there if he ever has at least 3 liberties on his turn.
Seems to me that b1 catches black.
$$c
Click Here To Show Diagram Code [go]$$c $$c
Click Here To Show Diagram Code [go]$$c
or
$$c
Click Here To Show Diagram Code [go]$$c
Patience, grasshopper.
Joaz Banbeck
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by Joaz Banbeck Sun Sep 11, 2011 11:05 am
daal wrote: ...
$$c
Click Here To Show Diagram Code [go]$$c $$c
Click Here To Show Diagram Code [go]$$c
emeraldemon
Gosei
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by emeraldemon Sun Sep 11, 2011 11:15 am
seems like
has to be here:
$$Bcm1
Click Here To Show Diagram Code [go]$$Bcm1
looks like maybe a ko? I agree it seems very complicated.
$$Wcm1
Click Here To Show Diagram Code [go]$$Wcm1
Shaddy
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by Shaddy Sun Sep 11, 2011 11:39 am
$$Bcm1
Click Here To Show Diagram Code [go]$$Bcm1
lightvector
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by lightvector Sun Sep 11, 2011 12:51 pm
Shaddy wrote: $$Bcm1
Click Here To Show Diagram Code [go]$$Bcm1
But it's still ko if white descends?
$$Wcm1
Click Here To Show Diagram Code [go]$$Wcm1$$Wcm1
Click Here To Show Diagram Code [go]$$Wcm1
Solomon
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by Solomon Sun Sep 11, 2011 1:19 pm
lightvector wrote: Shaddy wrote: $$Bcm1
Click Here To Show Diagram Code [go]$$Bcm1
But it's still ko if white descends?
$$Wcm1
Click Here To Show Diagram Code [go]$$Wcm1$$Wcm1
Click Here To Show Diagram Code [go]$$Wcm1$$Wcm1
Click Here To Show Diagram Code [go]$$Wcm1$$Wcm1 10 at 5
Click Here To Show Diagram Code [go]$$Wcm1 10 at 5$$Wcm1
Click Here To Show Diagram Code [go]$$Wcm1
lightvector
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by lightvector Sun Sep 11, 2011 2:07 pm
Araban wrote:
$$Wcm1
Click Here To Show Diagram Code [go]$$Wcm1
Wow B6 is really neat. Thanks.
I wonder why the book author didn't choose a simpler position to illustrate this tesuji. Or maybe this line of resistance was just overlooked.
cyclops
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by cyclops Mon Sep 12, 2011 5:44 am
$$Wc
Click Here To Show Diagram Code [go]$$Wc
where is the unconditional kill?
daal
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by daal Mon Sep 12, 2011 7:08 am
cyclops wrote: $$Wc
Click Here To Show Diagram Code [go]$$Wc
where is the unconditional kill?
How about this? White can play at neither a nor b, but black can play at a anytime.
$$
Click Here To Show Diagram Code [go]$$
Patience, grasshopper.
cyclops
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by cyclops Mon Sep 12, 2011 7:52 am
daal wrote:
How about this?
thx, Daal. Great!
has to be here:
