Author: A.G.B. Bluemers
Date: 15:48:41 10/14/04
Go up one level in this thread
On October 14, 2004 at 14:16:20, Stuart Cracraft wrote:
>Note that on a full Wac test, futility pruning and extended futility
>pruning together reduced my Wac result from 250/300 to 225/300.
>
>My margins as above are 3 pawns (3000) and 5 pawns (5000).
>
>Either I don't have it right, or my implementation is inefficient,
>or the theory is wrong and futility/extended pruning are bad for tactics.
>
>Stuart
efficient it is not,i think.
before you do makemove()
if (FUTIL_R != 0.0) {
if (depth == iply-1) {
if (incheck || alpha < eval(bd,QUIET)+3000)
prune = 0;
else
prune = 1;
} else if (depth == iply-2) {
if (incheck || ml.cap!=0 || alpha < eval(bd,QUIET)+5000)
prune = 0;
else
prune = 1;
}
}
gener_moves();
for everymove
>
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