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Subject: Re: Pro Deo at Blitz: re-examined

Author: Dave Kuntzsch

Date: 10:37:45 09/12/04

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On September 12, 2004 at 05:46:21, Ed Schröder wrote:

>On September 11, 2004 at 23:12:46, Albert Silver wrote:
>
>>One of the common seen comments on Pro Deo is that it is a poor blitz player.
>>I've seen this comment in several Computer Chess forums. However, one can't help
>>but notice how unusually quickly it plays compared to the time it has alloted,
>>no matter what the time control. At the Pro Deo parameter page
>>(http://members.home.nl/matador/engine.htm) there is a switch that allows one to
>>have Pro Deo play faster or slower on average:
>>
>>[Time Control ? 125]            * 125
>>[Time Control Status ? PB ONLY] * ALWAYS|PB ONLY
>>
>>(to activate, one must replace the '?' with '=')
>>
>>I ran 2 blitz matches using the Nunn 2 set with Pro Deo playing against Ruffian
>>1.05 at 5 mins + 3 sec increment, in one set using the default settings
>>(September 1st) and in the other using the time control parameter. The only
>>other change I made was to turn off all learning (position, engine, book) so as
>>to be sure the conditions were identical. It's not conclusive but it is very
>>interesting, as 80 games were played in all.
>>
>>Conditions: Athlon 2400XP+, 32 MB hash, Arena 1.08 GUI, pondering off.
>>
>>Without Time Control setting: Pro Deo lost 16 - 24 to Ruffian 1.05
>>
>>With the Time Control setting (at 125): Pro Deo *won* 20.5 - 19.5
>>
>>                                        Albert
>
>
>Let me clarify.
>
>[Time Control = 125]            * 125
>[Time Control Status = PB ONLY] * ALWAYS|PB ONLY
>
>First of all "PB ONLY" stands for "Permanent Brain Only". Meaning that the 25%
>increase of time management is only active when using the Permanent Brain (PB).
>If you want the option to be active in (say) regular eng-eng matches where the
>PB is off by default then set the switch to ALWAYS.
>
>I don't know how you have tested but if the 2 matches were without PB you have
>played with indentical settings.
>
>The switch is there because I think that increasing the time control works when
>the PB is active and doesn't work very well when it is not.
>
>As you see testing is hell.
>
>My best,
>
>Ed

For clarification: Are you saying that if we want [Time Control = 125] to work
for eng-eng matches, we must specify [Time Control Status = PB ONLY]? Or is it
the other way around: [Time Control Status = ALWAYS]?

Dave



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