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Subject: Re: Change of Subject

Author: James Robertson

Date: 17:46:14 08/24/99

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On August 24, 1999 at 20:28:19, KarinsDad wrote:

>On August 24, 1999 at 19:18:15, Georg v. Zimmermann wrote:
>
>>Are you talking about Bullet against other progs or against humans?
>>
>>And by the way : I bet Fritz5 is strongest, cause it is a very fast searcher,
>>much faster than Hiarcs and Genius.
>
>I get confused on this fast searcher is better at speed chess issue.
>
>From my understanding, Fritz5 (.32) handles about 10 times as many nodes per
>second as Hiarcs7.32 (give or take on the same hardware).
>
>To me, this would mean that Fritz5 would get 1+ ply deeper, but well below 2
>ply. So, Fritz5 would go down about 7+ ply on a fast system in 1 second and
>Hiarcs7 would go down about 6 ply in 1 second. Does this really correspond to a
>REAL significant ability considering that it's only one more ply?
>
>Doesn't 1 ply only correspond to about 50-70 elo (when you are talking so few
>ply) and couldn't that be recovered in a lot of cases due to the heavier
>evaluation in a slow searcher (i.e. there are other considerations than just
>material gain)? To me, it would seem like the fast searcher would not have THAT
>big of an advantage.
>
>KarinsDad :)

Also, remember that better move ordering makes fewer NPS. So Hiarcs could in
fact be searching deeper and have a lower NPS. My program's NPS has fallen from
(if I remember correctly) around 600k/second to about 100k/second and the 100/k
second plays _way_ better chess, bullet or otherwise.

James



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