Author: Christopher A. Morgan
Date: 10:34:06 12/29/01
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I think the engine matches on one computer/processor are fairly accurate in assesing the relative strengths of different engines, at least I have found that to be true. My non-scientific test results (not enough games, time controls too short) generally track the latest SSDF placements. I do have ponder off and have followed the discussions here re the effect of doing so on the strengths of the program, particularly Dr. Hyatt's comments, but I think to leave ponder on would create more uncertainty in the results due to different usage of RAM by different programs than leaving ponder off. Engine matches could never be definitive, but they are useful nevertheless is providing a guide as as to the relative strengths of different programs. I always use the opening book that comes with a program as I feel that is an integral part of a given program. I'll run an engine tournament with F7, Deep Fritz, and CT14 and post results here. I'm trying to get auto232 to work with two comparable computers (Athlon 750 and PIII 800) and when I do I will be able to post match results here. Those reults would be reliable, as is the SSDF, but statistically not anywhere near a definitive answer when we have programs very close to the same strength. The SSDF, Frank and Sara do sufficient testing, among others, to give us as close to a definitive answer as we are likely to get. Chris On December 29, 2001 at 05:02:55, Brian Katz wrote: >On December 28, 2001 at 21:26:00, eric guttenberg wrote: > >>I don't have any idea whether these engine v engine matches on one >>computer are reliable or not. For what it's worth, I have run 2 >>10 game blitz matches between F7 and F6. One with permanent brain on >>and one with permanent brain off(I don't know which is better). >>Both matches ended with the identical score of F7 winning 5-3 with >>2 draws. >> I do have the 7,0,0,2 Fritz 7 engine which is the upgrade, as I >>understand. Is it possible you have Fritz 7 without the upgrade? >> >>I might add F7 also beat Hiarcs7.32 in an engine blitz match by 7-1 >>with 2 draws. >> >>eric >Thank you for your reply. >Yes, I do have the latest upgrade (7,0,0,2)as listed in the properties window >when right clicking onto the Fritz 7 engine from the Chessbase engines folder >and then selecting the version tab...(For those who are not familiar with >checking the version that way) >I do not know how reliable engine tournaments are when run on one computer >either. >Supposedly, Permanent Brain should be turned off, otherwise processing time will >be divided. Some engines HOG more processing time than others. However, I firmly >believe that Permanent Brain is a necessary part of some programs. Taking that >away to give each engine full use of the processing time may affect some >programs in a negative way. >I have personally found when running an engine tournament, using Deep Junior 6 >vs Junior 6 or Fritz 6 on a single processor, with Permanent Brain turned on, >(which by the way runs a bit slower than Junior 6 if run on a single processor) >that Deep Junior 6 wins most games if Permanent Brain is turned on. Deep Junior >6 is a processing time HOG. When Permanent Brain is turned off the results are >quite different. >I have not found any drastic increase in playing strength between Fritz 7 and >Deep Fritz or Fritz 6. Engine tournaments between Fritz 6 and Fritz 6 Old showed >a big difference. The older Fritz 6 service packs required you to type in the >URL given to you from an email sent to you from Chessbase, and then downloading >that service pack, and then entering a PASSWORD that was given to you for Fritz >6. The same was true for Junior 6, different service pack and different >password, but there was no Junior 6 and Junior 6 Old. Only the upgraded version >would appear. Why don't the new service packs show the engines as Old and then >the newer versions? Whether it be Fritz 6a or Fritz 6e? In the beginning it was >Fritz 6 and Fritz 6 Old after the service pack. Then you could make comparisons >with one computer. Now the upgrade just goes through. >Of course you could always keep the old version in a different folder, have the >Fritz 6 programs loaded into TWO different folders so they can each have their >own engine folder to choose from, and then run games with TWO separate >interfaces with a split screen and manually enter the moves back and forth, with >the Permanent Brain feature turned off. That can prove to be very time consuming >though. However, most of us are addicted to this game or computers of both, so >doing this may not be a problem for many of us. >Any other responses on Fritz7 vs Fritz 6 and Deep Fritz would be greatly >appreciated. I do not know how Deep Fritz on a Dual Precessor fairs against >Fritz 7 on a single processor. Any responses on that would be greatly >appreciated as well.
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