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Subject: Re: ELO 3000

Author: Anthony Cozzie

Date: 12:05:12 08/25/03

Go up one level in this thread


On August 25, 2003 at 13:51:10, andy ********* wrote:

>On August 25, 2003 at 07:55:52, Mark Young wrote:
>
>>On August 25, 2003 at 07:13:54, David Bigler wrote:
>>
>>>Hi all !!
>>>
>>>My computer often plays on PlayChess.com
>>>My hardware system is 1 Athlon XP 2600+ with 512 Mb RAM
>>>I use 48 mb hashtables and no tablebases because the programm I use is Shredder
>>>7.04 and therefore, tablebases slows too much this programm in blitz.
>>>
>>>Shredder 7.04 is realy an impressive programm. And it is far the strongest one
>>>for the moment.
>>>I actually have an ELO of 2860 and my record was 2985 on a single CPU.
>>>
>>>The secret of this high ELO with a single CPU is that I work a lot on the
>>>opening book.
>>>I make the computer play my one tournament opening because it is more
>>>interesting also for me. Then each game the computer plays, I analyse it and
>>>modify the opening book if necessary.
>>>
>>>It seems that now even computers with ELO of arround 2500 ELO often uses 2 CPU.
>>>So the level is going higher and higher.
>>>
>>
>>
>>>My target is to have over 3000 ELO with this single CPU. I am not sure it is
>>>possible...........but we will see.
>>
>>A 3000 blitz rating is meaningless on playchess.com. Anyone with the same or
>>close to the same hardware and program you are running is playing the same
>>strengh you are playing no matter what rating they show on playchess.com. You
>>can be 3000 rating and they could be 2600 rating. Still you are not really 400
>>rating points better, just using a better formula most likely.
>
>Yes with identical hardware and settings , both programs must have the same
>intrinsic playing strength , however with a more optimised book it would be
>possible to have an higher rating.  The problem with very high ratings on
>playchess.com is often the player's "incestous" formula , often playing the
>same people time after time, perhaps creating a kind of isolated grading pool ?
>I experimented with 2 accounts , which had the same hardware,settings and book.
>The "no rating restrictions" had a grade of approx 2500 , while the more
> "restrictive" was 2700+ , that's clearly nonsense !

Part of this is also the fact that the elo system itself is not perfect.  Sonas
has done some stats on this at some point I think (his work with humans is a lot
better than his work with computers)

anthony



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