Computer Chess Club Archives




Subject: Re: Double Nullmove

Author: Vincent Diepeveen

Date: 06:19:27 03/30/01

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On March 30, 2001 at 09:04:25, David Rasmussen wrote:

>Anyone who have tried double nullmove (I know you have, Vincent :), what are the
>_drawbacks_ of double nullmove?

drawback is easy: always nullmoving reduces at big depths
overhead of it because you are allowed to do a third nullmove then
too. Now after 2 nullmoves you are not allowed to nullmove so
the number of nodes wasted on those searches are obviously
extra nodes when always nullmoving.

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