computer-go: Local search

[frank-steinmann@xxxxxxxxxxx (Frank Steinmann)]

I suppose, for live and death or safety problems you usually use a local
search. But how do you specify the search area for a local search?
Let's suppose that we want to check wether a certain block or group is alive
or dead. We could take the bounding box of the block and, for example,
extend it by 2 in every direction. But I think, that wouldn't be very
expedient in some cases. How do you handle that?

Frank