Gokyo Shumyo, Section 1, Problem 97 / Attempts
unkx80: I find this a difficult problem.
Dieter: Me too, unkx80.
![[Diagram]](../../diagrams/31/8be743cdbab90457d9bffff2140e6825.png)
Analysis
a is an half-eye, but if the
stones get captured, then a becomes a full eye.
![[Diagram]](../../diagrams/22/e47495891857e697d3b35e44c618770b.png)
Attempt
Dieter:
doesn't look necessary here, but it is [1]:
![[Diagram]](../../diagrams/33/8e841d2edf910b1278c7727e138dcd4b.png)
Variation I
![[Diagram]](../../diagrams/0/f6cdd5a74e05283df70b4547ee367d7c.png)
Variation II
![[Diagram]](../../diagrams/12/d3491e8614315bb6f8a8e32cfeddb187.png)
Variation III
![[Diagram]](../../diagrams/6/5f3f641cb8a4166f7a080ca02e71cb48.png)
Var iv
Dieter: Up 'till
is part of the solution. The next move to think about is the astute
.
![[Diagram]](../../diagrams/25/72e27fdd91269cc52babc24acccfd1f9.png)
Var iv
unkx80: Looks like there are a few ways of solving this. One which looks nicer might be this.
![[Diagram]](../../diagrams/18/ef8e6ca70e76b3844347e2bce1dd114b.png)
Var iv
Dieter: Yes. I now understand why that white stone on the upper left komoku is in place. But let's leave it here. You are a quick thinker unkx80.
unkx80: Which komoku is it?
[1]
![[Diagram]](../../diagrams/3/77476f688134411f7a63b2adcdb46b32.png)
White 4 necessary
![[Diagram]](../../diagrams/11/a8e031188fc25a8da53e817eafbb176f.png)
Failure
Bill: For a while I thought that
was a good move. ;-) I missed
, which I now think is correct.
![[Diagram]](../../diagrams/30/f67b9853e6449def678f2e723031af7b.png)
Failure (ii)
One point is that, thanks to
, White can afford to play
here.
![[Diagram]](../../diagrams/22/85fe21ce9149ec172de28c662d534414.png)
Extended problem
![[Diagram]](../../diagrams/4/65021325a960d342e44559f1698d99aa.png)
My solution?
![[Diagram]](../../diagrams/39/0780ef3af25ebad365a083d40e792bc1.png)
continuation