Life In 19x19

Thanks. I've already implemented flood filling. My major problem is contour tracing because i really don't know how to extract contours efficiently before applying flood filling algorithm.

Hello. I'm afraid my question has been asked several times before, but I've not found anything about very basics of go programming.
Me and my classmates are making c++ study project. It should be cross platform multiplayer go. And my part of the task is the interior game's logic. Score calculating ...