\documentclass{ppex}
\nonstopmode
\usepackage {go}
\pagestyle{empty}

\begin{document}
\ResetPreambleCommands
\ReadyForTheFray
\usepackage {go}
\gofontsize{15}

\pos{c}{15}=\black.
\pos{d}{17}=\black.
\pos{d}{3}=\letter{3}
\pos{f}{4}=\black{\triangle}
\pos{f}{6}=\letter{10}
\pos{d}{4}=\white.
\pos{d}{6}=\white.
\pos{g}{17}=\letter{5}
\pos{h}{17}=\letter{8}
\pos{i}{4}=\letter{5}
\pos{k}{17}=\white.
\pos{n}{2}=\black.
\pos{n}{3}=\black.
\pos{o}{3}=\black.
\pos{o}{2}=\white.
\pos{o}{5}=\black.
\pos{p}{2}=\white.
\pos{q}{2}=\white.
\pos{p}{3}=\white.
\pos{p}{4}=\black.
\pos{p}{7}=\white.
\pos{q}{4}=\white.
\pos{q}{3}=\black.
\pos{q}{5}=\black.
\pos{q}{6}=\black.
\pos{q}{8}=\black.
\pos{r}{4}=\white.
\pos{r}{5}=\white.
\pos{r}{6}=\letter{5}
\pos{q}{16}=\white.
\pos{q}{14}=\letter{5}
\pos{r}{14}=\letter{6}
\pos{o}{17}=\letter{8}
\begin{center}
 \mbox{\showfulldiagram } \\ Best moves for Black are near
 \textblack{\triangle}
\end{center}
\end{document}