🚀 go-pugleaf

> 
> 	Is pl73 better with or without KILLT and AGING defined?
> 
> R. Luebbert
> luebberw@lp.musc.edu
> 

Defining KILLT is always good.  The KILLT heuristics is actually
a move ordering heuristics.  It favors moves towards the centre and
will try these out first.  The effect of defining KILLT is to reduce
the size of the search tree without any loss of move quality.

I am however, unfamiliar with the AGING algorithm.  I recently
talked to Roger Uzun who told me that the AGING implementation in
Gnuchess isn't correctly implemented.  He has been exchanging lots of
e-mail with Dan Oetting (who implemented the AGING feature), and they
have agreed on a better way of doing it.  Roger has sent me their
version of AGING which I am currently trying to understand.  I'll try
and send a mail to Dan to see if he has any input (perhaps he might
read this message).

For the time being, I guess you might like to leave AGING out.

Kong Sian