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Subject: Re: The New SSDF List Accurate?

Author: Graham Laight

Date: 05:52:52 09/19/00

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On September 18, 2000 at 19:00:49, Christophe Theron wrote:

>On September 18, 2000 at 17:42:06, odell hall wrote:
>
>>Hello CCC
>>
>>
>>  How many think the new SSDF List is relatively Accurate?  Personally I commend
>>SSDF for doing a outstanding Job, Based on my observations of the grandmaster
>>Challenge and other 40/2 events, I think the list is very reliable.
>>I believe it is safe to say that any top program  running on a K62-450 is 2500
>>elo, or very near.  I think that now that the rating has been significantly
>>lowered, this list will be taken far more seriously in determining Fide rating
>>for Modern Programs. I am curious if some skeptics of the List in the Past,
>>consider the list still to high, or Just about right?  Opinions Welcome
>
>
>I guess the adjustement was justified for the top programs on recent hardware,
>but for the older programs on slow hardware the change has been really unfair.
>
>I'm talking about the dedicated chess computer around 1900-2200 elo. Now they
>are rated 1800-2100 elo, which is probably not fair at all.

The problem is that the humans have moved upwards against the computers by
discovering the power of killing off tactics in a position - e.g. by blocking
the centre.

In view of this increase in the sophistication of humans, I think the re-rating
is entirely fair.

-g

>It would have been better to do the change differently. Maybe by adding the
>games against human players in the SSDF database, giving them a higher weight
>than the comp-comp games, then recompute all the ratings based on this.
>
>I don't know if it is the best way, but just decreasing the whole list by 100
>elo points is not exactly a scientific method.
>
>The good thing is that it will stop the main critisism against the SSDF list, I
>mean people saying that the computers were overrated.
>
>I'm a strong supporter of the SSDF list. This is why I believe I can tell
>franckly my opinion about this change. :)
>
>
>
>    Christophe



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