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Subject: Re: Set the Record straight again, Bob - - -

Author: Robert Hyatt

Date: 06:36:12 01/26/04

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On January 26, 2004 at 04:34:54, ALI MIRAFZALI wrote:

>On January 26, 2004 at 03:54:04, David Dory wrote:
>
>>On January 26, 2004 at 02:14:39, ALI MIRAFZALI wrote:
>>
>>>On January 25, 2004 at 21:38:27, Robert Hyatt wrote:
>>>
>>>>On January 25, 2004 at 20:04:16, Rolf Tueschen wrote:
>>>>
>>>>>- - in a famous German forum the kids are on the streets and they shout:
>>>>>
>>>>>These old-fashioned Cray Blitz and Deep Blue monuments won't be "disqualified"
>>>>>by their authors with actualized Elo numbers.
>>>>>
>>>>>Is that true? Would these legends lose badly against today's elite of
>>>>>computerchess programs?
>>>>>
>>>>>I'm waiting!
>>>>>
>>>>>Rolf
>>>>
>>>>
>>>>I don't believe _any_ of them would "lose badly".  Any "super-program" from deep
>>>>thought through Cray Blitz would be very tough opponents for today's programs.
>>>>However, hardware is beginning to catch up.  Someone just pointed out on a chess
>>>>server last night that this quad opteron system I have is about the same speed
>>>>as the Cray T90 I ran on in 1995, in terms of raw nodes per second (6-7M back
>>>>then, 7-8M typically on the quad opteron).  So it is now probable that Crafty
>>>>could actually win a match from Cray Blitz on a T90 with 32 CPUs, assuming I use
>>>>the quad opteron.  My quad xeon 700 got ripped by the same machine a couple of
>>>>years back, however, so it would still be dangerous.
>>>>
>>>>I can't say much about how it would compare to other commercial programs as I
>>>>didn't run those tests with very little test time to play with the T90.
>>>>
>>>>The superiority of today's programs over the super-computers of 1995 are mainly
>>>>mythical, IMHO.  I suspect the games would be a _lot_ more interesting than some
>>>>would believe.  Of course, there is little chance to test such a hypothesis
>>>>since most old programs are long-retired, and such hardware is not readily
>>>>available today.
>>>I disagree.DeepBlue would get slaughtered ;by todays top commercial programs.
>>>It is known that standards in the midninties were not very high compared to
>>>today.I think you over estimate Nodes per second for some reason.For instance
>>>chess Tiger on Palm has a respectable SSDF rating of 2101 searching about
>>>only 200 positions per second on the palm.A decade ago at such low NPS it was
>>>inconceivable to get such rating.
>>
>>This is the question, then. Did Deep Blue meet the standards of the 90's or did
>>DB blow the lid off those 90's standards?
>>
>>I believe the latter.
>>
>>Robert probably "overestimes" node per second because he's old enough to
>>remember when those n/s were quite low - and how much that restricted the search
>>horizon. The chess programs were almost blind to the game. Indeed, in early
>>matches, the authors would agree to simply quit playing because their programs
>>just couldn't "understand" the end game. No table bases remember, and inadequate
>>search speed to find any way to make progress.
>>
>>A "blind" chess program is a dumb chess program, and no "higher standards" of
>>programming will change that.
>>
>>Dave
>I encourage you to read Vincent Diepeeveens threads on this subject.He is a
>1.Fidemaster (unlike most posters here) 2.A chess programmer (unlike most people
>here who are endusers of products).Furthermore an American chess program
>has NEVER been no1. on the SSDF list .All current Commercial programs are from
>Europe.Makes me wonder about things like Deep Blue ....Just an intuitive feeling

I suppose you notice that Vincent has _never_ been number one on the SSDF
either, so the fact that I have not is hardly a kiss of death.  As far as your
"number one on the SSDF" who cares?  No "big iron" program was _ever_ on the
SSDF, but I doubt any program in the first 10 years of the SSDF could win more
than one random game out of 25 against the "big iron" programs...

Your logic is _sorely_ lacking, as are your facts...






>..........



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