Re: computer-go: Empty board spaces management

[Dave Dyer <ddyer@xxxxxxxxxxx>]

 In my program, I found it useful to manage six types of regions
in the same manner as groups of stones.

 black stones
 white+empty stones (black eyes)
 white stones
 black+empty stones (white eyes)
 empty stones
 black+white stones (occupied space)

I apply the same types of operations to all different types of regions,
in a more or less symmetric way; for example, 
	given a black group get the adjacent white+empty groups
	given a white+empty group, get the contained white groups
	given a white+empty group, get the adjacent black groups
etc.