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Subject: Re: Rebel's Phony Elo settings

Author: Dave Gomboc

Date: 10:40:16 04/04/99

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On April 04, 1999 at 08:19:52, Francois Bertin wrote:

>On April 04, 1999 at 03:12:17, Dave Gomboc wrote:
>
>>On April 03, 1999 at 21:57:06, odell hall wrote:
>>> I set rebel 10's elo at my uscf rating (1810) to see just how realistic the
>>>rating are.  I played a six game match at game/5.  I was soundly crushed every
>>>game!!. Do not believe for a minute that the elo settings for rebel are
>>>accurate. Rebel plays much stronger than the elo might suggest. I believe with
>>>programs getting as strong as they are that a reasonable goal for programmers
>>>would be to develop realistic elo settings for their programs.
>
>>There is a certain limit below which it doesn't go... it might be 1400, it might
>>be 1600, I don't know exactly.  The lower limit might even depend on the
>>hardware you're running on.  I propose that you do an experiment: set it to
>>1400, see if you start beating it up, or if it is still crushing you.  If you
>>are still getting crushed then it serves you right for having such a fast
>>computer. <grin>  (Actually, that was just a joke: I'd expect that the program
>>compensates for the machine speed.)
>
>  Not exactly true, Dave. You can set the Elo option at any level you like,
>even 800 ;-) I often play Rebel at a time level of 5 sec./move and
>Elo 1200-1300 and I have good games, although I still have to actually win
>one... (sigh) At that level, I generally get a good position because
>the program seems to neglect its king safety, and then I loose because
>I typically leave a piece "en prise" or don't see a tactical shot that Rebel
>is still able to spot, even at that level. That's on a P100 and of course,
>I don't use the regular book; instead, I either select the small book or the
>"blunder" book.
>
>                          Regards,
>                                        François Bertin

We have a misunderstanding.  While you can set it to 800, it will never play as
bad as an 800.  There is a limit to its "artificial dumbness". :-)  That is what
I meant when I said "there is a certain limit below which it doesn't go...".
Maybe that limit is 1400, maybe 1600, and as Ed reports, it's certainly much
higher than those figures at blitz.

I think Ed did get some useful feedback though: now he is aware that people
expect the estimated rating to take into account the time control, instead of
assuming a 40/2 game.

Dave Gomboc



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