Author: Tina Long
Date: 21:07:51 12/12/99
Go up one level in this thread
On December 10, 1999 at 23:23:44, Enrique Irazoqui wrote:
>On December 10, 1999 at 22:53:41, Len Eisner wrote:
>
>>On December 10, 1999 at 22:26:43, Chuck wrote:
>>
>>>On December 10, 1999 at 20:16:13, Bertil Eklund wrote:
>>>
>>>>On December 10, 1999 at 20:01:28, Chuck wrote:
>>>>
>>>[snip]
>>>
>>>>>
>>>>>I think it is very easy to prove that Robert is right here. It is very
>>>>>noticeable. I once played out a 40/2 match between a Mach IV and a Mephisto
>>>>>Polgar, the Mach IV one 10-2. The two machines are very close in strength,
>>>>>probably within 100-150 points. But playing many games and watching these two
>>>>>computers evaluate positions, it was evident that the speed of the Mach IV
>>>>>(compared to the Polgars 5 Mhz) gave it a big tactical advantage. Head-to-head
>>>>>this seems to be magnified. I played an old MChess against the Mach IV and it
>>>>>won 11-1. Wow, what results. The point is, when a progam plays another which is
>>>>>on significantly slower hardware, the faster program is going to win big and
>>>>>it's rating will be inflated. Two years later, when it becomes the one with slow
>>>>>hardware, it will be the one getting pounded, and it's rating will go down. I
>>>>>think at one time the Mach IV was on the SSDF list at around 2200, but late in
>>>>>it's life it dropped to below 2100.
>>>>>
>>>>>Chuck
>>>>
>>>>Hi!
>>>>
>>>>As checked houndreds of times this is completely wrong.
>>>>
>>>>Play two-houndred games and the level should probably be accurate.
>>>>
>>>>Bertil SSDF
>>>
>>>Then explain to me how the Mach IV had a SSDF rating of 2282 in January 1993 but
>>>now has a SSDF rating of 2074!?!
>
>How many games did it play by 1/93 before getting the 2282 rating?
January 1993 (from March 1993 ICCA Journal)
19. Fidelity MachIV 68020 20MHz 2080 +/-26 760games 65% win against average
1972.
Note: 2080 1/93
11/99:
108 Fidelity Mach IV 68020 20 MHz 2074 18 -18 1475 49% 2084
Extra games 715,
change in rating -6
-6!!!!!!!!!
"There's statistics, statistics & outright bloody lies."
Some obscure Australian Politician
I think Len is comparing apples & oranges.
Hi guys,
Tina Long
>
>Enrique
>
>>>Chuck
>>
>>Yes, that is the question, and it applies to the other old programs too. If
>>computers are anything, they are consistant, so the Mach IV would play exactly
>>the same today as it did in 1993, yet its rating is over 200 points lower.
>>
>>Len
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