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Subject: Re: New SSDF rating list

Author: blass uri

Date: 04:01:40 08/05/00

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On August 04, 2000 at 22:57:21, Derrick Wilson wrote:

>On August 04, 2000 at 22:25:43, Imran Hendley wrote:
>
>>On August 04, 2000 at 22:01:43, Derrick Wilson wrote:
>>
>>>On August 04, 2000 at 21:21:42, Laurence Chen wrote:
>>>
>>>><snip>
>>>>> I don't believe this list for a second!! Consider this, on a pent 200 the list
>>>>>states that hiarcs6 is only 2417, yet the same program on that hardware defeated
>>>>>2495 dean hergott in a six game match!!
>>>>Yes, Dean Hergott at the time did not have a copy of Hiarcs to play and practice
>>>>with.  Also computers chess at the time was not taken as seriously as it now.
>>>>The other explanation is that Dean Hergott was not aware of any anti-computer
>>>>strategy, or, he played he's usual style because he did not believe that the
>>>>computer was a serious threat.  Result he lost to Hiarcs 6 on a Pentium 200.  If
>>>>you look at the games, the games were not closed, locked up positions, no
>>>>anti-computer strategy was used.
>>>>Laurence
>>>
>>>
>>>Yawn....excuses, excuses, excuses... if my grandma had wings she could fly. If i
>>>could play better chess I could beat Garry kasparov.
>>
>>There's no law that says someone can't defeat an opponent rated 78 points higher
>>in a 6 game match. Six games isn't a lot, and the margin isn't all that big. It
>>happens. I don't think this one match is reason enough to say the SSDF should
>>not have lowered their ratings. You gotta see the big picture.
>
>
>  Which is? The question is not whatever or not they should have lowered their
>rating, obviously they should, but by how much?


Every number may be wrong because the performance of programs against humans may
be different than the performance against computers.

I also read that there was a noise in the match against Hiarcs6 and one match is
also not an evidence.

I believe that if you do a match between humans with 78 points rating difference
you will find often 4:2 results for the player with the lower rating.

I am sure that you can find examples in the ssdf games when program A won the
first 6 games 4:2 inspite of being more than 78 points lower based on the ssdf
rating.

Uri




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