Author: blass uri
Date: 08:08:59 05/29/00
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On May 29, 2000 at 10:51:51, Ed Schröder wrote: >On May 29, 2000 at 02:17:28, Eelco de Groot wrote: > >>That looks very good, Ed! You sure seem to have improved the search! I would >>love to have a new engine in ECTool. I hope there will be a discount for Rebel >>owners? I suppose that would be Rebel for Windows then. I particularly like the >>idea of ECTool as a sort of an alternative interface for Rebel, if it can also >>use bookopenings and personalities. > >The Century 2.0 engine is a between version and will be only for >ECTOOL and EPD2DIAG as it became time people are offered an update. >Upgrading from Rebel10 is possible. > >>I am almost positive that if in the new search you see more tactics that also >>means that there are some pruning differences now. And in that case I would >>think that that also means that you had to do some retuning. Looking at the >>different lines played by the new engine it seems to be playing rather >>differently, too? If you could maybe say something about that Ed? It would be >>much appreciated! > >The last 2-3 years I mainly worked to tune Rebel's evaluation function, >the thing I like to do most. It has been a good thing to do that and the >results against strong humans (GM challenge, Israel League) has proven >that. > >Because of all the work on eval I have neglected search the last 2-3 years. >Not that that matters much against humans but I noticed in comp-comp you >can not neglect search for such a long time without consequences. It is important also against humans. Rebel could avoid gxf5 and fxe4 if it could be faster in the only game that it lost against humans in the Israeli league. Uri
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