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Subject: Re: My proposal to SSDF: decrease level by 100 points

Author: blass uri

Date: 00:49:58 07/28/00

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On July 28, 2000 at 01:16:36, Lanny DiBartolomeo wrote:

>On July 28, 2000 at 00:58:14, Jouni Uski wrote:
>
>>I made comparison between Carson's latest human list and SSDF to clear
>>possible level difference. But it's very difficult, when there are not many
>>exactly same software and hardware combinations. I removed multiprosessor
>>results and made assumption, that difference between 200MMX and 450 Mhz is 79p
>>(for comp-comp, sure not for human-comp). Here's some figures:
>>
>> Program   average speed   Against humans   SSDF rating         difference
>>
>> Rebel         431Mhz      2549/33 games    2594 (200MMX+79p)     -45
>> Fritz6        500Mhz      2457/15          2721 (450)           -264
>> Hiarcs6       272Mhz      2573/20          2518 (200MMX)         +55
>> Shredder      500Mhz      2495/8           2676 (450)           -181
>> CM5/6K        375Mhz      2521/14          2653 (200MMX+79p)    -132
>>
>>This means, that average difference (Against human - SSDF rating) is -85p.
>>(Weighted difference for all 90 games).
>>
>>I think this confirms general feeling, that SSDF must drop level by 100 points.
>>Counting these multiprosessor Junior/Fritz may still lower level.
>>
>>I this this kind of list is much more reasonable than current:
>>
>> 1  Fritz 6.0 128MB K6-2 450 MHz          2621
>> 2  Junior 6.0 128MB K6-2 450 MHz         2589
>> 3  Chess Tiger 12.0 DOS 128MB K6-2 450   2571
>> 4  Fritz 5.32 128MB K6-2 450 MHz         2554
>> 5  Nimzo 7.32 128MB K6-2 450 MHz         2553
>> 6  Junior 5.0 128MB K6-2 450 MHz         2526
>> 6  Hiarcs 7.32 128MB K6-2 450 MHz        2526
>> 8  Crafty 17.07/CB 128MB K6-2 450 MHz    2524
>> 9  Nimzo 99 128MB K6-2 450 MHz           2523
>> 10 Hiarcs 7.32 64MB P200 MMX             2477
>> 11 Fritz 5.32 64MB P200 MMX              2475
>> 12 Chessmaster 6000 64MB P200 MMX        2474
>> 13 Hiarcs 7.0 64MB P200 MMX              2460
>> 13 Fritz 5.0 PB29% 67MB P200 MMX         2460
>> 15 Nimzo 99 64MB P200 MMX                2449
>> 16 Junior 5.0 64MB P200 MMX              2437
>> 17 Nimzo 98 58MB P200 MMX                2425
>> 18 Rebel 9.0 47MB P200 MMX               2420
>> 19 Hiarcs 6.0 49MB P200 MMX              2418
>> 20 Rebel 8.0 51MB P200 MMX               2410
>>
>>Jouni
>
>Yes, but if you leave Fritz6 on top it is too inflated compared to human games,
>  and dropping hiarcs rating would be a problem as well since it earned its
>rating 2573, it seems like the damage is done and you need a separate ratings
>list for comps vs human.  I do not think you can just lower the ratings straight
>across the board.
>  Lanny

I think that the leader of the ssdf(if it is not for a short period) will always
be inferior against computers(unless there is a big difference of more than 100
elo ssdf rating).

The best players will always buy the number 1 in the ssdf and prepare against it
so programs number 2 and number 3 can get better result against humans because
humans are less prepared against them.

Fritz is leading the ssdf most of the time in the last years.

Some other programs like Junior and tiger and chessmaster could be the leaders
only for a short time.

This is the reason that people buy more fritz and this is the reason that fritz
is inferior against humans(I talked with one of the players in the israeli
league and he told me that he prepared against Fritz but did not prepared
against other programs).

Uri



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