Author: A. Steen
Date: 23:16:30 11/20/05
Go up one level in this thread
On November 21, 2005 at 01:48:25, enrico carrisco wrote: >On November 21, 2005 at 01:36:49, Tord Romstad wrote: > >>Hi Enrico, >> >>This is not really a question of EGTBs or not, but about null move >>pruning. Unlike most other engines, Fruit *always* uses null move >>pruning, even when one side has only the king left. This is the >>reason why Fruit doesn't announce mate quickly in your position. >> >>Try to deactivate null move pruning in Fruit (set the "NullMove Pruning" >>parameter to "Never"), and Fruit will announce mate after a few >>seconds. >> > >Hello Tord. > >I understand that -- but my mainpoint was that EGTBs help in the same position >and *do* announce mate. Unless Fruit can "auto-disable" its permanent NullMove >Pruning in such a situation than it benefits from EGTBs. > >My mistake was to not post the rest of the analysis where the shuffling of >pieces (as in my later examples) took place. Right, so you now agree that my correction of you was absolutely correct. :) I had said that I agreed EGTBs were useful but that your initial (at that time, ONLY) example proved (if anything) the opposite, as all engines found the perfect move faster than an EGTB search would, and at least 9 out of 10 stuck with it for the same cut-off. And your following abuse of me, inferring I needed help to join up the dots and understand your higher logic, is therefore seen for what it is. As well as your strawman argumentation that you were really referring to scholarly research on EG analysis, and not real-life against the clock play as per your original post. If I have a big impressive "Profile", I guess I won't have to say "Sorry" either! I am learning so much, thanks! Best, A.S. >Of course, if the shuffling and >pointless moves did not occur than I would agree that the only loss without >EGTBs would be the mate announced and polished PV (in the examples provided.) > >Regards, > >-elc.
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