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Subject: Re: More Adam vs Hydra Hype

Author: Vincent Diepeveen

Date: 07:27:28 05/27/05

Go up one level in this thread


On May 26, 2005 at 17:19:58, Charles Roberson wrote:

>On May 26, 2005 at 10:40:04, Darrel Briley wrote:
>
>>There's another article on Chessbase site today concerning the upcoming match.
>>
>>http://www.chessbase.com/newsdetail.asp?newsid=2412
>>
>>
>>-1 second to analyse 200 million chess moves and chose the best one. This
>>includes projecting the game 18-40 moves head (6 more than Deep Blue)
>
>   Hmmm, lets do the math.
>    200 million nps for 3 minutes = 200M * 60 * 3 = 36 Billion Nodes.
>
>    Now, lets assume that their Effective Branch Factor is 2.
>    2 to the 35 is over 34 billion. This indicates 35 ply in 3 minutes at an
>    EBF of 2. Now, 35 ply is 17.5 moves.

>    Now, assuming they are giving us average numbers this means that in the
>    middle game it will project much less than 17.5 moves.
>
>    So, do we believe that they have the EBF down to 2 all the time?

[small cough]

Deep Blue searched 10-12 ply




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