Author: Ernst A. Heinz
Date: 06:01:59 01/22/98
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On January 22, 1998 at 08:42:06, Robert Hyatt wrote: >Yep... Forgot. For me, I couldn't do the above... because I don't use >fail-soft and most scores (excepting mate and draw) are always inside >the alpha/beta window. But shifting the null-move window down does >exactly the same thing, ie searching alpha-piece, beta-piece produces >the same information. Yes, but it is much more expensive because you must do a second null move search whose trans/ref efficiency is probably bad because of the shifted search bounds. Furthermore, the condition of the static evaluation failing high is important. >I thought my idea of first noting that this was a PV move, and then >trying the null-move threat extension only after that was from the >paper. As you can only do a non-zero window null move search somewhere down the PV, this is certainly implied by the paper. =Ernst=
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