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

Author: Jeremiah Penery

Date: 19:22:29 10/17/02

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On October 17, 2002 at 20:58:39, Uri Blass wrote:

>On October 17, 2002 at 18:14:56, Jeremiah Penery wrote:
>
>>On October 17, 2002 at 13:09:58, Vincent Diepeveen wrote:
>>
>>>On October 17, 2002 at 06:46:50, Jeremiah Penery wrote:
>>>
>>>You don't put on your 20GB harddrive box that it is
>>>a 14(6) GB harddrive.
>>>
>>>Instead you sell it as 20GB.
>>
>>If you have 2 partitions on it, you can split it that way.  Or do you think you
>>should write that one partition is 20GB and the other is 6?
>>
>>>You are a complete idiot if you believe that 12(6) is 18 ply.
>>
>>I don't think I said anywhere that I believe 12(6) _is_ 18 ply.  But I'm pretty
>>sure it's more than 12.
>>
>>>There is so many statements now which if you litterary interpret them
>>>means that 12(6) = 12 ply.
>>>
>>>The clearest statement is the advances of artificial intelligence.
>>>
>>>It seems to me that the only person who tries to present things better
>>>than they are is Hsu.
>>
>>Hsu is the one who said 12 ply - how is that trying to present things better
>>than they are?  More like worse.
>
>Based on other things that he said(deeper blue is better than deep Fritz) it
>seems that Hsu is not the person who tries to present things worse than they are
>so if he says 12 plies he cannot mean more than what is considered as 12 plies
>by people except extensions.
>>
>>>The documents which clearly state non-ambigious 12 ply are written
>>>by 3 persons and proofreaded.
>>
>>The paper that states '12.2 ply' says that is the iteration depth, which is
>>software.
>
>No
>
>I did not see where they said that the iteration depth is the software
>I remember that they even said that iteration x means depth
>x-4 in the software(I understood that it was about deep blue Junior and not
>about deeper blue but I guess that the word iteration has similiar meaning in
>deeper blue).

Ok, i-4 is the MINIMUM software depth.  In Crafty (or Fritz, or Diep, or
anything else), when it reports a depth of 12, the MINIMUM can be several plies
lower due to null-move (or some other) pruning.  Should we now say that Crafty
is really getting 8 plies instead of 12 because of this?  Well, you can if you
want.

It doesn't change the fact that DB's iteration depth is meaning software.
Whether the number is i-4, i, or i+4 doesn't change that fact.



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