🚀 go-pugleaf

I compiled gnuchessx with the following options:

OPT= -DUSEINT -DCACHE -DGDX -DHASGETTIMEOFDAY -DDEEPNULL -DQUIETBACKGROUND\
	-DSEMIQUIETBOOKGEN -DWAY4PL64 -DHASHSTATS -DAGING
plus either -DKILLT, -DHISTORY, or both..

K= killt (only), H= history (only), K&H= both
n/n/n= win/loss/draw for white

0:01			0:10			(-st)

K-H	H-K		K-H	H-K
8/20/2	8/18/4		5/3/2	3/5/2

K-K&H	K&H-K		K-K&H	K&H-K
14/13/3	13/14/3		4/5/1	7/2/1

K-K			K-K			control for K
13/13/4			3/5/2

H-H			H-H			control for H
9/18/3			3/4/3

White and black were run simultaneously on an hp735.
0:01 gave ~20,000 nodes with depth 4-6
0:10 	  ~180,000		   5-7

There's not enough games for good statistics..  But it seems like H is
weaker as white (or stronger as black).  Could there be a reason for this?

Other notes:

About 20% of the time, 3 errors occur when one side tries to mate.  For
example:

Ignoring illegal move from machine
Bad move in chess program output: a6b7
Illegal move: Qg1

(Qg1 is mate, and a6b7 is the king's attempt to move out of the way- it
isn't a legal move.)

What do WAY4PL64 and AGING do?  Also, in the Makefile the option for client
uses NULLMOVE and normal uses DEEPNULL.  Shouldn't they both use both?

BTW, pl69 is great- thanks to all who worked on it!