Author: Tony Werten
Date: 10:14:12 02/03/01
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On February 03, 2001 at 12:00:55, Larry Griffiths wrote: >On February 02, 2001 at 19:35:47, Tony Werten wrote: > >> >>Quite normal when you evaluate with material only or eval=0 >> >>>They tend to be much >>>higher on even plys. >> >>Comes with (plain) alfa-beta. You try to get around it with nullmove, extensions >>and an elaborated evaluation function. >> >>Some work left for you, >> >>Tony >> >Thanks Tony, > >I have not been able to get null move to work, but I will keep on trying. I've found that the easiest way is to actually have a make_nullmove function where you store the move, chance color_to_play, get rid off the enpassant square, store hashkey etc. just as you would normally do with a make_move. >I have done some extensions before, but dropped them when I converted from >alpha/beta to negamax. Don't you mean from negamax to alfa-beta ? Easy extensions are "in check" and "passed pawn to 7th rank" >I have no idea what elaborated evaluation means. A "big" evaluation function. Tony > >Larry.
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