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Subject: Re: Robert------Deep Blue knowledge question

Author: Robert Hyatt

Date: 06:37:54 04/11/02

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On April 10, 2002 at 11:59:58, Roy Eassa wrote:

>
>Dr. Hyatt, I think this part of what you said is the big factor that is most
>often overlooked:

That is why I say this so often.  99% of the people here are computer users,
never having paid any attention to any hardware design issues...  That gives
them no perspective to understand this from if someone doesn't help...



>
>
>Deep Blue was _hardware_.  In a software chess engine, every bit of evaluation
>"knowledge" you add costs you in terms of speed.  So
>it is a series of compromises...  gaining this bit of knowledge is more than
>offset by the tactical loss of skill due to the engine running slower...  for
>example.
>
>DB was different, because they designed the evaluation in hardware, and they
>could pipeline the whole thing so that many parts of the evaluation could
>proceed in parallel.  Which means that they could add "knowledge" with no cost
>in speed at all.  That gives them a great advantage in that any knowledge can
>be added without regard to reducing the tactical skill of the machine, something
>that the rest of us have to deal with daily...
>
>
>
>I don't think everybody realizes this fact, whereas they DO realize that DB was
>dozens of times faster than today's PCs, etc.



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