\input{code-page}
\documentclass[border=0.5cm, varwidth=9cm]{standalone}
\usepackage{../../latex/pgf-go}


\pgfgoset{profile = pgfgo, goban = {13, label = {at = {south, west}}}}


\begin{document}
	% Each framework is a polygon given by its corners;
	% 	pgf-go fills its squares and measures it.
	
	\begin{goban}
		\stones[b]{K4, K10, J7, L7}
		\stones[w]{D4, D10, C7, F3}
		\territory[b, draw = region]{J3, M3, M11, J11}
		\territory[w, draw = region]{B2, F2, F5, E5, E11, B11}
		\marks[triangle]{J10}
		\arrow{D7}{G7}
	\end{goban}

	\smallskip
	Black's framework: \pgfgoregion{b}{area} squares; White's: \pgfgoregion{w}{area}.
	The triangle shows where White can reduce it.
\end{document}