As Tikz beginner, I'd learn skills for GO board drawing to do the following conveniently:
- add stones in arbitrary board positions (BOTH for grid points and unit squares) with text tag or other indicators of shape, color, etc.;
- label X,Y axis systematically and selectively;
- indicate arbitrary rectangles on the board by color or bounds;
- add comments outside of the board such that they have multiple line arrows pointing to arbitrary positions of the board, for example, all opposite boundary position pairs have a common property, several inner positions have a common property, etc.