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Subject: Re: How strong is PF2 on a 400 Mhz Axim running PPC 2003 ?

Author: Drexel,Michael

Date: 09:10:22 09/22/03

Go up one level in this thread


On September 22, 2003 at 05:13:32, Uri Blass wrote:

>On September 22, 2003 at 01:57:02, Drexel,Michael wrote:
>
>>On September 21, 2003 at 19:54:12, Mike Byrne wrote:
>>
>>>Current SDDF ratings
>>>
>>>  Program/Computer Rating
>>>1 Shredder 7.04 UCI 256MB Athlon 1200 MHz  2810
>>>2 Shredder 7.0 256MB Athlon 1200 MHz  2770
>>>3 Fritz 8.0 256MB Athlon 1200 MHz  2762
>>>4 Deep Fritz 7.0 256MB Athlon 1200 MHz  2761
>>>5 Fritz 7.0 256MB Athlon 1200 MHz  2742
>>>6 Shredder 6.0 Pad UCI 256MB Athlon 1200  2724
>>>7 Shredder 6.0 256MB Athlon 1200 MHz  2721
>>>8 Chess Tiger 15.0 256MB Athlon 1200 MHz  2720
>>>9 Shredder 7.0 UCI 128MB K6-2 450 MHz  2717
>>>9 Chess Tiger 14.0 CB 256MB Athlon 1200  2717
>>>
>>>Based on everything I have looked at (analysis of positions etc), PF 2 is more
>>>akin to Shredder 7 and not Shredder 7.04.   On a Dell Axim running at 400 Mhz,
>>>it appears to be about 12=15x slower than a P4 1.7 Ghz which runs pretty close
>>>to a P3 1.2Ghz.
>>>
>>>If one assumes for the moment that doubling of speed is worth 50 points (which
>>>is high IMO - I think it's closer to 35-40 points at the high end) - then we can
>>>work backwards.  For simplicity. let's just say an Axim is 16X slower than 1,2
>>>Ghz (it's not - but this make the numbers easier to work with).
>>>
>>>16x = 2^4.  So we take 50 x 4= 200 points - so in the case PF2 on a Dell Axim
>>>running Mobile 2003 is equal to 2570 to SSDF conservatively.
>>
>>38 Shredder 4.0  128MB  K6-2 450 MHz       2571   23   -22   986   58%  2510
>>
>>I think 2570 is way too high. Somewhere between 2450 and 2500 is more realistic.
>>
>>This over 200
>>>points higher than any estimate for any program running on the Palm Tungsten and
>>>clearly ahead of any dedidicated unit..  This clearly in IM range and maybe even
>>>weak GM level.
>>
>>Usually you dont want to play tournament games against it anyway.
>>With imported Shredder7 book it would probably score ~50% against any Top
>>Grandmaster in rapid chess (15,25 or 30 min) provided that they dont know the
>>progam nor its book.
>
>Genius3(p90) already scored good results at 25 minutes per game including 1.5-.5
>against kasparov.
>It lost 2-0 against anand but it also beated anaother GM 2-0

Genius 3 even on a modern PC is not very strong. Even a weaker player than I am
can beat it with a Kingsindian attack or some strange Gambit lines.
Kasparov played a bad opening line.

>
>It happened against unprepared opponents and kasparov even complained after it
>that he believed that he was playing Genius2(kasparov later beated genius3(p120)
>1.5-.5 when Genius3 used a different opening book but it was only after some
>preperation from kasparov.

Genius 3 played simply not enough games. It can win a two games match against
any top chessprogram even today.

>
>I believe that Shredder4 on K6-450 is clearly better than Genius3 on P90

It should be clearly better in Computermatches.
We have no idea how Shredder 4 on a K6-450 would perform against top players.

>so I expect it to get more than 50% against the top GM's if they are not
>prepared unless the top GM's play today significantly better than the level they
>played in 1994

Of course the top players of today play significantly better.
Opening theory has improved much and the opening is part of the game.

Michael

>
>Uri



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