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Subject: Re: DEEP BLUES AVERAGE PLY?

Author: Vincent Diepeveen

Date: 16:22:15 08/21/02

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On August 21, 2002 at 17:37:14, Uri Blass wrote:

>On August 21, 2002 at 17:31:53, Uri Blass wrote:
>
>>On August 21, 2002 at 17:21:08, Robert Hyatt wrote:
>>
>>>On August 21, 2002 at 14:48:04, Vincent Diepeveen wrote:
>>>
>>>>On August 21, 2002 at 14:42:49, Robert Hyatt wrote:
>>>>
>>>>Bob if you don't read what they write,
>>>>then please show us you can do math.
>>>>
>>>>Please quote what is the theoretic number to search FULLWIDTH without
>>>>hashtables OR killermoves and WITH singular extensions a treesize
>>>>of 18 ply..
>>>>
>>>
>>>First, they don't claim to do "fullwidth" in the hardware.
>>
>>The 12.2 is software+hardware depth.
>>It is very clear from their paper.
>>
>>see page 13 table 2
>>
>>iteration 12
>>minimum software depth 8
>>
>>The explanation say that is it about the position before white's move
>>in game 2 against kasparov.
>>
>>Uri
>
>They also explain "given iteration i the software is assigned i-4 ply"
>In the examples the maximal depth is only 40 plies and top programs of today
>have no problem to get that maximal depth.
>
>Uri

The fact that this has been written clearly by the deep blue team in
2001 (august) and published in if i remember well artificial intelligence,
it clearly indicates that they were a bit sick of the confusion as well
and very clearly wrote down what the thing did and was.

We can only thank them for doing so.





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