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Re: [gnugo-devel] trevor_1_14.5
From: |
Daniel Bump |
Subject: |
Re: [gnugo-devel] trevor_1_14.5 |
Date: |
Fri, 16 Nov 2001 13:48:31 -0800 |
> Dan wrote:
> > Why does this patch remove owl attack pattern A1?
> >
> > That pattern looks needed to me. You could quibble with
> > the valuation.
>
> I think Trevor is on the right track. It's not enough that a pattern
> is needed sometimes, we simply can't afford too many ineffective hits.
> Pattern A1 looks like it may well be too general.
I'm surprised at this opinion. How would you make it more specific?
Here's the pattern:
Pattern A1
# sometimes sagari is better
?.*Ox connect
..OXX
.....
.....
-----
:8,n,value(80)
If O neglects to reinforce X can substantially improve
his eyespace in sente by hane underneath. Usually he can
push at least twice in sente.
Removing this pattern seems surely harmful.
Dan