Re: [gnugo-devel] Patch: removal of value()s from patterns.db

[Arend Bayer]

On Fri, 25 Oct 2002 address@hidden wrote:

> I don't think the value(30) in ED45 should be taken out. It is
> valued slightly less than a J pattern in a situation where
> it is urgent that a move be made to prevent W from pushing
> through and cutting. In strategy2:79 it is possible that the
> hane at R4 is better than N3 but actually this is not so
> clear. In any case the move at Q6 is not good here. This
> pattern prevents a tenuki which is almost always a serious mistake.
>
Another example where ED45 is suboptimal is in
regression/games/handtalk/handtalk1.sgf, move 31.
C12 is much to slow here and D13 clearly better.

It may always be a problem that such patterns tend to be to general, and
I'd prefer to think of all these high fixed value patterns as temporary
workarounds. E.g. it would be nice if GNU Go could actually understand
the problem in situations as in this handtalk game. With the new
connection code it may actually be possible to tackle this. (Note that in
the handtalk game, C17/C13/C10 are incorrectly amalgamated.)

Arend