Author: Russell
Date: 09:15:11 12/08/05
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On December 08, 2005 at 05:48:39, Vasik Rajlich wrote: >On December 08, 2005 at 01:05:57, Albert Silver wrote: > >>I can't recall Deep Fritz 8 ever looking in such bad shape. It lost even winning >>attacks. Here is one position where I was certain Rybka was done for: >> >>[D]5k1r/pb3q2/1p2p1Rp/3nPp1Q/2r2P2/P5P1/1P2N3/4KB1R w K - 0 32 >> >>yet 20 some moves later the position looked like this: >> >>[D]8/p7/1p2p1k1/1P2Pp2/P2r1PnP/5Q1K/R5B1/2q5 b - - 0 56 >> >>I think Rybka is a poor name. Houdini seems more appropriate. >> >>Bear in mind that this was played using Rybka's "slightly positional" profile. >>My purpose is to test the other as well under identical conditions in order to >>better see how they differ in terms of performance and style. That, and the fact >>Rybka doesn't have its own book, is why I choose to play with the Nunn2 set. >>CEGT reportes that Rybka suffered a marginal loss to Hiarcs 9 as well as a >>serious one to Chess Tiger 15, so Tiger will be the next opponent in the series. >>Then I'll see what the other styles show. >> >>Athlon64 Sempron 3400+ >>Hash: 256 Mb; ponder off >>Time Control: 10min + 2 sec >>Nunn2 Openings set >> >>1 Rybka "SP" Beta 32-bit +24/-3/=13 76.25 30.5/40 >>2 Deep Fritz 8 +3/-24/=13 23.75 9.5/40 >> >>The first match against the default "very positional" style yielded >> >>1 Rybka "VP" Beta 32-bit +18/-10/=12 60.00 24.0/40 >>2 Deep Fritz 8 +10/-18/=12 40.00 16.0/40 >> >>Bear in mind, one match means nothing so no conclusions other than it is a >>different and interesting style should be inferred. >> >> Albert > >I just want to make a comment about the positional vs tactical settings. These >slightly affect the way search is handled. They will not change the general feel >of the program for a human observer. Only different evaluation terms can do >this. > >Vas I will have to say ur Positional settings are stronger than Tacitical settings.
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