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Subject: Re: Junior - Crafty NPS Challenge - a user experiment

Author: Robert Hyatt

Date: 19:03:53 11/21/03

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On November 21, 2003 at 19:11:41, Will Singleton wrote:

>On November 21, 2003 at 18:24:42, Robert Hyatt wrote:
>
>>On November 21, 2003 at 18:05:55, Joachim Rang wrote:
>>
>>>On November 21, 2003 at 16:47:52, Peter Berger wrote:
>>>
>>>>Following recent heated discussions I'd love to do a little testmatch. There are
>>>>different versions of the challenge online - I chose one that I can kind of
>>>>simulate myself with slower hardware.
>>>>
>>>>Junior 8.0.0.2 will play on a P233MMX, 32 MB RAM.
>>>>Crafty 19.4 will play on a PIV2.0GHz notebook, 1GHz RAM.
>>>>
>>>>Time control will be game in 2 hours with 10 seconds increment/move. The match
>>>>will be done like older FIDE world championship matches - the first one to win 6
>>>>games wins the match, draws won't count.
>>>>
>>>>Junior uses 16MB Hash, 3+4 men tablebases, 1MB cache, junior8.ctg.
>>>>Crafty uses 384MB Hash, 64MB hashp, 3+4 men tablebases, 32MB cache, own book,
>>>>aware of playing a computer.
>>>>
>>>>Compairing setups with Crafty bench (hash 12M, hashp 3M, cache 1M on the slower
>>>>one) suggests a speed difference factor of about 10.5 in raw nodes per seconds
>>>>and 11.0 in "SMP time to-ply-measurement" between the two computers.
>>>>As the Junior Mark doesn't work on the slower one and Junior chooses to search
>>>>different depths on both in the starting position, I can't really give a number.
>>>>The difference seems to be slightly lower for Junior though, sth like 9.0 maybe.
>>>>
>>>>Saying that the faster computer is about 10 times faster shouldn't be too wrong.
>>>>
>>>>That's also clearly an upper-bound for faster hardware Crafty could reasonably
>>>>come up to compete with against a single-CPU opponent in a current competition
>>>>on fast computers IMHO - the speedup demands 16 CPUs I guess, and I don't know
>>>>if Crafty can really scale that well.
>>>>
>>>>With this setup Crafty should be the clear favourite I suppose.
>>>>
>>>>Crafty won the toss and will have the white pieces in the first game.
>>>>
>>>>Peter
>>>
>>>
>>>nice test indeed. I think crafty will win.
>>>
>>>regards Joachim
>>
>>If it loses I should obviously retire from computer chess due to gross
>>incompetence.
>
>You already have two people (above) who think Junior has a chance to win, so I
>suppose you should at least start checking the social security balance.  Me, I
>think Crafty will win easily, perhaps 6-0 (not counting draws).
>
>Will

I'd expect 5-1 or 6-0 at 10:1 time odds, discounting quite a few draws
that are expected...

As for who thinks that a 10:1 time odds is not enough, I suspect they have
not "gotten dirty" by writing something that is serious.  10:1 is quite a
bonus.  100:1 is even better...

If I couldn't win at 10:1 it would be time to hang it up, IMHO, no matter
how much or little time I get to spend on it...


>
>ps  Nice of Peter to arrange this match, promises to be diverting.  Any chance
>of a live feed using Tom's viewer?



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