Author: Ed Schröder
Date: 15:24:06 04/02/00
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On April 02, 2000 at 16:33:24, blass uri wrote: >On April 02, 2000 at 15:46:54, Dave Gomboc wrote: > >>It sounds like your tunable policy paid off, in terms of people discovering good >>adjusted parameters? >> >>Dave > >Chess knowledge=25 is not an idea of me. > >I suggested to use it only after I read in Ed's site that Ed found that it is an >improvement against computers and maybe also an improvement against humans. > >I found also (after I read that Ed found that knowledge=25 is an improvement) >that Rebel(knowledge=0) does not lose in a result of almost 60:0 against >Rebel(chess knowledge=500) at 7 plied depth and it convinced me that Rebel knows >some important things even with knowledge=0. > >I think that the numbers of the chess knowledge parameter were misleading and >the minimal number should be clearly bigger than 0. > >I believe that this is the reason that people did not try to reduce the chess >knowledge parameter in the Rebel century personality contest. > >Uri I also did not expect it either that lowering the Chess Knowledge parameter would make Rebel stronger. In my tests I always increased the value of the Chess Knowledge parameter. When I did a test with [Chess Knowledge=25] (it was just curiosity) I was surprised to see the enormous speed gain of the search. Then [Chess Knowledge=25] suddenly had my full attention. So the improvement was discovered by accident. No real surprise as most of the time it goes that way. Chess remains a mystery, it is like a maze of 2^64 entries and no exit. Ed
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