Author: Charles Roberson
Date: 14:19:58 05/26/05
Go up one level in this thread
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?
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