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Subject: Re: crafty 19.6 better than 17.14

Author: Alex Szabo

Date: 09:41:30 12/06/03

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On December 06, 2003 at 11:51:20, Mike Byrne wrote:

>On December 06, 2003 at 11:45:46, Alex Szabo wrote:
>
>>On December 06, 2003 at 11:33:42, Joachim Rang wrote:
>>
>>>On December 06, 2003 at 11:22:15, Alex Szabo wrote:
>>>
>>>>My self-play experiment between crafty versions 19.6 and 17.14 resulted in the
>>>>19.6 version being stronger by 11 (plus or minus 2) rating points.
>>>>
>>>>The experiment was for 20,000 games at a 20+1 time control.  It was run on a
>>>>2x2GHz pentium4 linux system with xboard 4.2.6.  I can include other details if
>>>>there is interest.
>>>
>>>20.000 Games at a 20+1 time control? How many month did your test last? It seems
>>>to me impossible to play 20.000 games with Crafty 19.6 since this version is
>>>only a few weeks available.
>>>
>>>regards Joachim
>>
>>It would have taken about 30 days; it actually took 7.5 days because I ran 4
>>matches at the same time.
>
>Did you mean 2,000 games and not 20,000 games.   20,000 games in 30 days means
>666 games a day or 28 games every hour.  Or perhap better defined what did you
>mean by 20+1?.

I mean 20,000 (twenty thousand) games.  "20+1" means clocks start with 20
seconds and 1 second is added after each move played.  The command to xboard
was, in part, "-tc 0:20 -inc 1".  My actual throughput was 110.5 games per hour
for the 181 hours the experiment took to run.



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