Author: Sergei S. Markoff
Date: 07:02:25 10/01/03
Go up one level in this thread
Hello!
>I just posted a message almost identical to my current one on the Winboard
>forum, but I guess CCC is a better place to discuss this. Is the pseudo-code
>below a correct implementation of your idea?
I have two corrections.
1. Uri is right. The same piece capture isn't always the capture to the same
square.
2.
>
>int search(int alpha, int beta, int depth) {
> int value, null_value;
> move_t *move;
>
> if(depth <= 0) return qsearch(alpha, beta, depth);
>
> make_null_move();
> null_value = -search(-beta, -alpha, depth-R-1);
> unmake_null_move();
> if(null_value >= beta) return null_value;
> else ThreatMove[Ply] = CurrentMove[Ply+1];
if(SameTarget(ThreatMove[Ply],ThreatMove[Ply-2])) extend_flag=true;
// Then you must use this flag to add about 1/2 plies to all moves
// in this node, but take care of extension limitation
Best wishes,
Sergei
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