Author: Uri Blass
Date: 09:56:20 06/17/01
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On June 17, 2001 at 09:09:27, Vincent Diepeveen wrote: >On June 17, 2001 at 04:11:26, Uri Blass wrote: > >>Are there top programs that are designed to see always simple tactics after >>enough time? >> >>Is it possible to change them to see always simple tactics after enough time >>when the price is only being 0.1% slower by using 2 engines when one engine is >>usually used only for only 0.1% of the time or maybe my math is wrong and only >>using another engine makes the program already more than 0.1% slower because of >>the fact that the program is bigger(even if the other engine is simply the >>original engine without null move pruning)? > >Here i can jump in with double nullmove. A few years ago some people >doubted nullmove to be a correct way of searching in *any* respect. > >Nothing would beat fullwidth. Hence Deep Blue being fullwidth. >Nowadays thinking has changed after everyone has been beaten by >nullmove. Not exactly truth. Junior is still one of the top programs and it is not a null mover. It has other problems of not seeing simple tactics(for example uncorrect stalemate detection that happens in some rare cases so the engine can say mate against itself when there is a stalemate combination). Uri
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