Author: Tijs van Dam
Date: 06:36:00 01/26/00
Go up one level in this thread
On January 26, 2000 at 09:29:27, Robert Hyatt wrote:
>On January 26, 2000 at 08:08:01, Tijs van Dam wrote:
>
>OK: The normal window failed low. I am now going to do a search that I
>_know_ can't fail low, because alpha=-INFINITY...
>
>
>
>> if (value <= alpha) {
>> value=ABSearch(tree,-MATE,beta,wtm,depth-2*INCPLY,ply,DO_NULL);
>
>here the following line is missing:
>
> tree->hash_move[ply]=tree->pv[ply-1].path[ply];
>
>This was deleted somewhere along the way. However it isn't really
>important... this case is _very_ rare.... a search to depth=N will produce
>a score of X, A search to depth=N-something only rarely fails low and breaks
>this...
>
I see. But why did you keep the line for the research in? It is useless now,
isn't it?
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