Author: Tony Werten
Date: 05:30:33 08/30/00
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On August 30, 2000 at 04:06:57, Uri Blass wrote: >On August 30, 2000 at 03:44:07, Tony Werten wrote: > >>On August 29, 2000 at 14:44:57, Dann Corbit wrote: >> >>>On August 29, 2000 at 13:13:10, Masciulli Gianluigi wrote: >>> >>>>"...is that during the tournament the programs run on processors of different >>>>speeds. Surely it would be a fairer test of the program if the processor speeds >>>>were equal for all? The programmers seem to think that speed is not all that >>>>crucial (though they typically say it is ‘helpful’), but I suspect it may be a >>>>little more important than they care to admit." >>>> >>>>by J. Levvit at Kasparov chess site. >>>> >>>>I wonder why he can't understand that some programs are build with different >>>>platform in mind and that upgrading from 500 to 750mh cpu is "helpfull" but not >>>>"crucial". >>> >>>Every little bit helps of course. A faster CPU, faster ram, larger hash, bigger >>>tablebase, better opening book, etc. >>> >>>The fundamental algorithms are most important. The quality of the opening book >>>is second. CPU speed and memory are probably next. Tablebase files are last in >>>importance. >>> >>>Doubling the CPU speed would not be nearly so important as a superior algorithm >>>or bug free opening book. >> >>A very important thing you forgot is the quality of the evaluation. Specially >>passed pawns seem to be important. In the game against SOS, my program >>sacrificed a rook to create 5 (!) passed pawns. One on the 7th, one on the 6th >>and one on the 5th row. 3 out of 5 where on adjacent lines, unfortunately 5 out >>of 5 were useless. >> >>Tony > >I think that your program overevaluated the passed pawns. >I believe that reducing the value of the pawns can give your program better >results. > >I believe that over evaluating pawns is a common mistake of beginners. >I know that one of the changes in Junior6 relative to Junior5 was reducing the >value of pawns. > >Big value of pawns can help your program to score better in test positions >because in these positions there are often sacrifice of a piece for pawns but it >can be also counter productive in games. Yes, I think so to. I'll see how it does at the Dutch Open. Tony > >Uri
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