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Subject: Re: WoW does crafty know how to take a beating!

Author: Robert Hyatt

Date: 07:38:04 11/22/02

Go up one level in this thread


On November 22, 2002 at 05:07:41, Sune Fischer wrote:

>On November 22, 2002 at 01:24:44, Robert Hyatt wrote:
>
>>On November 21, 2002 at 23:10:06, Edward Seid wrote:
>>
>>>On November 21, 2002 at 22:32:21, ERIQ wrote:
>>>
>>>>Just got an opening book for Phalanx but no opening book for crafty. played a
>>>>game just to see. Maybe I should set the resign alittle lower for crafty
>>>
>>>The problem with Crafty is that if it's playing another computer, it won't
>>>resign.  I'm not sure what's the logic behind that design.  So in my WB 90 30
>>>Ladder, I end up waiting and waiting for Crafty to get mated in hopeless
>>>positions.  Perhaps Dr. Hyatt can enlighten us... why not make resigning against
>>>other computers an option with Crafty?
>>
>>
>>The issue is this.  The other night I watched Crafty vs a commercial program,
>>crafty ended up with a lone king, the other program had a king rook and pawn.
>>It obviously had the krpk table, but apparently not the kqrk table.  It advanced
>>the pawn to the 7th and then moved idly around until the game ended in a 50 move
>>draw.  All the while crafty's eval was at something like -Mat09 or something...
>>
>>The moral?  Don't resign against a computer, you never know _what_ will
>>happen...
>
>Same with humans, you never know when they blunder.
>
>>That is why I don't resign when playing a machine.
>
>I think that is a bad idea if it is a feature the users would like.
>There are a lot of people doing these automated computers tournaments, and
>engines not resigning is a real waste of time.
>
>It is true that occasionally a point will flip here and there because of some
>bug, but Crafty is at a level where most of these silly bugs should been have
>eliminated long ago. Spending a lot of time hoping for a bug in the opponent is
>pretty lame.
>
>Besides if you don't resign, why should any body else resign? It will all be one
>big waste of time, much better to get on with the next game....

Good point.  However, I consider most of these comp vs comp games to be a huge
waste of time anyway.  It is repetitive, the games are often flawed in various
ways by
incorrect setup, etc...

>
>I guess people should keep a history of what programs refuse to resign, and then
>never resign against them either, to give them a taste of their own medicin.

I don't see _any_ computers resigning on ICC.  Nor offering/accepting draws.
Etc.
Doesn't bother me.  My computer could care less whether it plays one game that
lasts
four hours or four games that last one hour each, so not resigning isn't going
to make
crafty "mad".  :)

But in any case, Crafty has been resigning/offering draws/accepting draws
against human
players for many years.  It offers draws in cases where it is pretty convinced
it is drawn,
even when playing a computer.  But I don't see any reason to _resign_ since my
opponent is
silicon and doesn't get tired...



>
>-S.



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