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Subject: Re: An Experiment that disproves Hyatt's 1000X NPS Theory

Author: Albert Silver

Date: 10:42:07 09/17/05

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On September 17, 2005 at 10:04:32, ALI MIRAFZALI wrote:

>Hyatt has claimed many times that a Nodes Per Second Factor of one thousand
>times would not be overcome by the program with the less Nodes per second.In
>this Experiment it was shown conclusively that this is false .Although I played
>4 games ,I do not think the result would have been different if I had played a
>hundred more.Time Control 40 MOVES IN 2 HOURS followed by sudden death in 1
>hour.Hardware: GNU CHESS 4.11 a program from 1996 ran a celeron 1.8 Gig machine
>;Chess Tiger on Palm ran on the Palm Tungten E.NODES PER SECOND:ON THE
>AVERAGE:CHESSTIGER ON PALM 500 per second ,GNU CHESS 4.11 500000 per second on
>the celeron 1.8 Gig.1000X DIFFERENCE.Hyatt and some other people have always
>argued about the supremecy of DeepBlue based on its speed.I think these days
>these arguments are false;and Speed does not mean as much as it used to.Deep
>blue would be crushed by todays program's.A lot of STRENGTH is EVALUATION
>FUNCTION.Take a look at these games:
>Match ended in 2-2 draw.

The idea of testing this is certainly interesting but the conditions seem rather
dubious IMHO. For one thing, 4 games really is COMPLETELY meaningless, andwith
all due respect to claim you don't think the result could have been different
shows how much you don't understand this.

BTW, does Tiger really only get 500 nodes per second on your Palm? That seems
ridiculously low. I don't have Tiger, nor a Palm for that matter, but on my Dell
Pocket PC at 624MHz, I get about 50,000 nps on average for Fruit 2.1.

Note that if one is to believe the results of Hiarcs site
(http://www.hiarcs.com/phresults.htm), Tiger on the Palm has inordinately bad
results (they claim it plays over 400 points worse than Hiarcs on identical
hardware, which is HUGE), so perhaps it isn't the ideal choice.

                                        Albert



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