Author: Christophe Theron
Date: 10:30:32 12/12/00
Go up one level in this thread
On December 12, 2000 at 03:36:52, Mogens Larsen wrote:
>On December 11, 2000 at 20:27:43, Christophe Theron wrote:
>
>>Excuse me Mogens, but I believe I have some knowledge about what's going on in a
>>chess program (mine for example), and I can assure you that programs DO plan.
>
>Well, I'm sorry to say that programs don't plan. You can guide it towards a
>certain type of position that it knows how to handle by changing certain
>parameters, eg. putting pressure on the opponents king until it feels
>confidentabout the attack.
This way of explaining things shows that you don't know how programs can plan.
It's not about changing weights of the evaluation terms. It's about looking at
the position like a human would do and selecting the appropriate "goals", and
then trying to achieve them by calculation.
>But it's clear in the cases where the attack fails that the program won't have a
>clue what to do next. It'll most likely attack even more and end up losing. The
>same bewilderment will happen in quiet or very closed positions. There will be
>numerous examples of simple planning that a program won't be able to solve.
What you are saying here is not that program do not plan. You are just saying
that in some cases they don't find the right plan, or don't have one. It happens
to humans too.
It doesn't refute the fact that programs DO plan.
>That would include your program as well, so the answer is still no. Ordinary
>calculation based on increased values (bigger carrot) and dedicated knowledge
>(longer stick) isn't planning.
Chess programs have others ways to plan. Not just bigger carrot and longer
stick.
That was good in the Chess Challenger era. Programs have evolved, you know.
>>But I can assure you that if humans are planning, then programs (some of them)
>>do it as well.
>
>Some programs in some cases will appear to be planning. Not a general trend by
>far.
>
>Mogens.
>
>PS: And in case you say "Yes, they do" again, I say "No, they don't" :o).
So I guess I should stop trying to explain you why they plan.
Christophe
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