[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [gnugo-devel] trevor_1_14.5
From: |
Daniel Bump |
Subject: |
Re: [gnugo-devel] trevor_1_14.5 |
Date: |
Sat, 17 Nov 2001 07:27:11 -0800 |
> The comment to the pattern is important. If the purpose is to limit
> the X eyespace on the bottom, descending or hane is much more severe,
> unless there's some serious problem with the cutting point at *. In
> fact we don't want to spend time and nodes on playing * at all if the
> cutting point is non-problematic.
Yes, the comment is important. Sometimes the sagari is better. But
often not.
> In any case I can propose one simple change to make the pattern more
> specific. We can replace the n classification with the constraint
>
> > ?.*Ox connect
> > ..OXX
> > ..a..
> > .....
> > -----
>
> oplay_attack(a,*,*)
This would rule out the pattern in many cases where escape
into the center is threatened. For example, if it looks like this:
........
........
...O..OO
..OXXXXO
........
........
--------
The solid connection is more likely to prevent escape.
BTW owl test 4 is now broke. I haven't figured out why.
Dan