Author: Uri Blass
Date: 11:50:00 09/05/01
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On September 05, 2001 at 14:31:38, guy haworth wrote: > >Ernst Heinz used Fritz (with help from ChessBase to set up the experiment >repeatably and carefully). > >Clearly, advances in search strategies are reducing the effective fan-out: pick >your favourite number in the range 3-6. Certainly, 3 gives 3^3 = 27 < 35 and an >improvement of 3 plies. I do not see why do you assume that the branching factor is at least 3. There are cases mainly in the endgame when the branching factor of Deep Fritz is 2.5 or even less than 2. > >'All other things being equal', EH's results suggest that you are not going to >see more than 240 ELO improvement by upping guaranteed-search-depth from say 14 >to 17 plies. > >Results for other chess engines will be less predictable. > >Interesting comparison between SSDF results and EH's. EH ran 3,000 games per >match which is by a long way, more than others have done. > >G Did he use different programs? The ssdf use different programs for their tests. Uri
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