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Subject: Re: 200 games with same program, 2xhardware, percentage of loss and elo

Author: Dann Corbit

Date: 08:48:48 01/07/02

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On January 07, 2002 at 09:40:17, K. Burcham wrote:

>we see elo opinions here often.
>but how does an elo difference convert to win/loss.
>
>using the same program. same default settings.
>one program has 1000mhz 256 megs ram.
>second program has 2000mhz 512 megs ram.
>estimated kns for program one, 500kns.
>estimated kns for program two, 1000kns.
>
>if we play a 200 game match.
>this is time setting per move. percentage of wins for 2000mhz.
>
>1sec  3sec  6sec  10sec  15 sec  20sec  30 sec  45sec  1min  2min  3min 5min
>
>95%   93%   91%    89%    87%     85%    83%     81%     79%  77%   75%  73%
>
>anyone think this chart would be close
Here are some figures at slow time control (equivalent to G/4 hrs for the
equivalent hardware used below), for engines where I have run quite a few games:
Program           Elo    Games diff
Yace 0.99.50      2623    176    0
Amy-07            2546    133   77
ZChess-222        2515    214  108
Amyan-1423        2375    112  248
Fortress-162      2283    165  340
Faile-14          2231    186  392
31337-30          2054    180  569

Here is a 5 minute blitz rating list for the same engines:
Program           Elo    Games diff
Yace 0.99.50      2524    456    0
ZChess 2.22       2428    520   96
Amy 0.7           2329    768  195 {fits my theory that Amy gains w/ time}
Amyan 1.423i      2328    340  196
Fortress 1.6.2    2163    768  361
Faile 1.4         2135    768  389
31337 0.30-2      1932    520  592


Now, the absolute numbers are irrelevant, but the differences should be telling.
At 48x longer time control the differences in ELO are not dramatic.

In other words, I would expect the ratios to hold approximately the same (with a
bit of variation here or there) for all time differences.



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