How to determine NPS

[Kempelen]

What I do:

I define node as a new board position. So I increment the node counter each time I enter Search() or Quiesce().

Also I increment the node counter each time I try a illegal makemove, because although is illegal, is a new position which is rejected, like it would be if a cut off.

I think this system is similar to increment node count each time makemove() is call.

FS