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Subject: Re: LeTiger and Crafty on ICC for Mr. Hyatt and Andreas

Author: Robert Hyatt

Date: 19:29:08 11/06/00

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On November 06, 2000 at 17:40:01, David Beauregard wrote:

<snip>
>
>Bob you may think that this is a stupid question but being a novice in chess
>programming I would like to know why you like to test using IM or GM players.
>Would not Fritz or Shredder give you better ideas for moves than the humans.
>What percentage of GM's play Crafty and win?  Thanks for the message about not
>taking it all personally.  I am understanding your methodology and can now see
>your viewpoint.  Thanks......Dave Beauregard

As I have said before, developing a program to beat human GM players,
and developing a program to beat other computer programs, is two distinct
things.  If you watch on ICC, you will see what I mean.  We have a new
player there named "guitige" that seems quite good.  He played 41 games
vs scrappy, and lost all 41.  He then went to play another highly-hyped
program and got a win, loss, draw and win.  He then went back to scrappy
and lost 16 more in a row.

He then left me a note "very difficult to reach anti-computer positions
against your program..."  That is what I have been working on for a _long_
time.  To (a) avoid blocked positions by understanding them and (b) being
able to play endgames vs GMs without fear.  You won't find them trying to
trade into simple endings in blitz games.  It is not so easy to trick it
nowadays.

against human players, I can afford to make a few necessary positional
concessions in order to avoid blocked positions and the draws that follow
them around.  But against computers, this can be suicide.  You really
can't afford to give up _anything_ (of course the opponent won't be trying
to block the position, but crafty would be doing everything possible to avoid
the _possibility_...)

That's why I say they are "different" goals.  And taking on the "GM problem"
is (to me) the interesting one.



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