Author: Uri Blass
Date: 07:20:48 09/26/02
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On September 26, 2002 at 09:33:37, Albert Silver wrote: >On September 26, 2002 at 09:11:48, Bernhard Bauer wrote: > >>On September 26, 2002 at 09:03:14, Andreas Guettinger wrote: >> >>>In general I agree that TB should be used and do the work for the engine >>>wherever possible, but KRxK? Hey that's the basics! Even my cat can win that! :) >>> >>>Andreas >> >>That means your cat dosn't make use of the nullmove heuristic. >>If you teach your cat how to use nullmove it may no longer win that! >>Bernhard > >Don't just about all of the top engines use nullmove? Funny that I never heard >of one of them not being able to mate with K+R vs. K > > Albert 1)I am not sure if they use it in K+R vs K 2)I suspect that not every use of null move in K+R vs K is going to lead to a draw. Null move pruning means pruning position with no threat and if the position when the side with the king is in zunzwang are positions when there is a threat then it means that they are not going to prune them. Uri Uri
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