Re: strength of chess computer programs vs. time
- From: Guy Macon <http://www.guymacon.com/>
- Date: Fri, 20 Jul 2007 20:56:02 +0000
Hello wrote:
In the old days (70's & 80's) an increase in search depth (by extra time,
faster system, whatever) mean a straight increase in play strength. Linear
growth.
Roughly 100 elo for every extra ply.
However, that quickly changed. By the late 80s onward, it was fairly
obvious it was a curve and not linear.
The more powerful the computers got, and the better the programs, the slower
the strength improvements came.
There was a 'deminishing returns' to the growth of the machine power /
search time.
It didn't really flatten out, but it definetly went from a straight line
(linear) to a much more of a curve with progressively slower growth.
That makes sense. How often does a computer end up in a position
where the position is even after 20 plies but won after 30 plies?
How often is it even after 30 plies but won after 40?
--
Guy Macon
<http://www.guymacon.com/>
.
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