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Subject: Re: Fruit fly races

Author: Steven Edwards

Date: 10:14:07 04/07/05

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On April 07, 2005 at 09:08:43, Stan Arts wrote:

>Instead, I'm trying to combine an AB-type search with a more AI approach.
>It has sort of an overhead. That will be like a conscious brain that tries to
>steer in a certain direction, form "ideas" and remembers them/sticks to them.
>And an AB-search part that looks at tactics, and positional consequences, like
>"normal".  But the overhead will still have influence on that and if a best AB-
>move really steers away from the current "idea" it might look for an
>alternative, and things like that. (So the search won't be very efficient, maybe
>getting true scores for several moves. But that's not so important. )

This sound interesting.  One possibly related idea that has been tried is to
have a family of evaluation functions and a family of move ordering functions
and have some analysis/recognizer select among these functions for the A/B
search.

>So, I hope my program will be able to do things like:
>Bluff. (If I've got a good position and formed a plan, but the plan turns to be
>bad later on by search, then maybe still continue the plan (depending on a few
>things) , and hope the opponent won't find the refutation.)
>If I've found I'll be mated by a really deep mate, not to sacrifice material to
>be mated in 11 instead of 10, but to play for complication, and hope the
>opponent doesn't see/find the mate.   And things like that. It's not really
>possible to make a regular AB-program do that.

There have been some attempts at this with the use of a swindle option.
(Unlikely to work against a computer opponent.)  Symbolic should have one of
these but it's not there -- yet.  It will need one, as I have noted more than a
few games between the toolkit and human opponents where the program lost a half
point because it resigned in a lost endgame (due to tablebase knowledge) when
the human opponent might not have found the correct continuation.

>This will only have use against humans, ofcourse..
>And the search will be fairly similair to previous Neurosis's one, so I can
>mostly work on this overhead thing. Hope to have some news about it in a few
>months..

>Goodluck with Symbolic !

Thank you.



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