Author: David Rasmussen
Date: 04:21:12 11/26/02
Go up one level in this thread
On November 26, 2002 at 05:22:42, Dann Corbit wrote:
>
>Are you absolutely sure that the nodes are being counted correctly? This is not
>exactly a wild-open sort of position with scads of deep combinations in waiting.
> It's hard to imagine how the qnodes can go berserk like that.
I'm pretty sure I'm counting them correctly. I count only the nodes that
Q-search _generates_, not the node I'm in on entering Q-search. Normally, my
Q-percentage isn't that high. Before I got SEE, it was regularly in the 60%'s.
Now, it is usually about 20-40%. But in this particular position (and the ones
"near" it), and probably many others, the Q-search explodes.
I'm counting like this:
Score Search(pos,...)
{
++nodes;
...
if (depth < ONE_PLY)
{
--nodes;
return Quiescence(pos,...);
}
...
}
and
Score Quiescence(pos,...)
{
++nodes;
...
while (anymore interesting moves)
{
...
MakeMove(pos,move);
score = -Quiescence(pos,...);
UnMakeMove(pos,move);
++qNodes;
...
}
}
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