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Subject: Re: DF7/ Bahrain is stronger than Deep Blue II was (I guess...?)

Author: Jeremiah Penery

Date: 16:16:34 10/13/02

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On October 13, 2002 at 19:03:39, Mike S. wrote:

>On October 13, 2002 at 18:24:58, Deepak Nityanandam wrote:
>
>>During Dr Hsu's chat he said that the DB2 programmers didnt even consider DF
>>for benchmarking purposes as they thought it was "way to weak" to play against
>>DB2.
>
>Maybe in 1997. But now as it's clear (or fairly clear...) that Deep Blue's
>typical depth of "11(6)" did NOT mean 11 + 6 of nominal depth, but a depth of 11
>and a *maximum* of 6 plies in the hardware for quiesence search  (I hope I got
>that right, finally), it seems obvious that Fritz has become stronger than Deep
>Blue was. And most probably some other programs too, which are of similar
>strength like Fritz 7.
>
>It has been reported that Deep Fritz in Bahrain reaches a depth of 16 or 17 (I
>can't remember exactly and where I read it) in the middlegame.
>
>Also, even on single cpu running at 1,2 GHz, Fritz 7 reaches "base" depths of
>15...16 in a few minutes, and selective depths of more than 40! It was said that
>Deep Blue II had much more knowledge in the evals (than used today), but can
>that compensate for ~4...5 additional plies? In general, I don't think so.

Chessmaster searches _far_ less deeply than Fritz if you try to count plies that
way, but I wouldn't say Chessmaster is all that much weaker than Fritz.



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