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Subject: Re: Q&A with Feng-Hsiung Hsu

Author: Andreas Guettinger

Date: 01:53:28 10/14/02

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On October 13, 2002 at 21:20:32, Robert Hyatt wrote:

>On October 13, 2002 at 12:00:39, Andrew Williams wrote:
>
>>Several people asked:
>>
>>Question: What does "12(6)" mean in Deep Blue's logs?
>>
>>Dr Hsu said, "12(6) means 12 plies of brute force (not counting the search
>>extensions & quiescence). 6 means the maximum hardware search depth allowed.
>>this means that the PV could be up to 6 plies deeper before quiescence."
>>
>>Unfortunately questions were being fed through a third-party, so it wasn't
>>possible to get a follow-up.
>>
>>Andrew
>
>I saw the question and answer tonight when I got back home.
>
>Too bad the question wasn't phrased reasonably to clear up the ambiguity.
>
>The above doesn't contradict the email I got from DB team members, nor does it
>contradict the article they published.  It is just too vague...


Seems pretty clear to me what he said. The PV can be up to 6 ply deeper than 12
ply before quiescence search starts, this make a maximal PV length of 18 (not
including extensions).

regards
Andreas



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