Author: Dave Gomboc
Date: 08:06:30 02/01/00
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On February 01, 2000 at 00:43:26, Christophe Theron wrote: >On January 31, 2000 at 02:24:16, Dave Gomboc wrote: > >>On January 30, 2000 at 21:39:16, Christophe Theron wrote: >> >>>So all that is needed is that the SSDF guys drop Chess Tiger DOS and start >>>testing the Rebel-Tiger instead. >>> >>>I cannot be sure the Rebel-Tiger would be on top again, but I am sure it plays >>>significantly better. So... >> >>This is exactly what I thought would happen, even though you previously said >>that SSDF could start testing with Chess Tiger DOS because things wouldn't >>change for Rebel-Tiger's release. You really should take credit when it is your >>due, Christophe! ;) >> >>Dave > > >Come on, didn't you follow what happened? Yes, I did. >Rebel-Tiger, commercial version, is by default EXACTLY the same engine than the >DOS engine that has been tested by the SSDF, with the only exception, that has >been checked by the SSDF and mentionned in their comments, that it computes >somewhat faster (about 8%). The difference only comes from the compiler used to >build the commercial engine, it is not a matter of optimized code. > >But while the engine was tested by the SSDF, I was still working to improve it >(I had less than one month to do that). As I wanted to keep my promise that the >commercial version would play exactly like the version tested by the SSDF, the >improvements have been included in the commercial version but they are not >activated by default. I wasn't even sure when the master CD went to duplication >that these new settings were better or not! I think it is good that you kept your promise. >The engine has been "frozen" by the end of November, so I had enough time since >that to check if the new settings are really better or not. > >They DO improve the program's strength. So now there are 4 good reasons for the >SSDF to test the commercial product: > >* it is somewhat faster >* it can use bigger hash tables >* it has improved algorithms >* there will be soon an opening book patch > >I don't feel like I have betrayed anybody. I have kept my promise to the SSDF, >and my customers do get the latest and best engine I have produced. > >What do you say about Fritz6 followed several weeks after by Fritz6a, and >Junior6 followed by Junior6a? I think they shouldn't be tested separately either, and my understanding is that they won't be. Doesn't your original statement imply that there should be a separate entry for Rebel-Tiger than for Chess-Tiger on the SSDF list? That is certainly how it reads to me. > Christophe Dave
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