\input{preamble-standalone.ltx}
\begin{document}

% Ex. No. 251 (Section 32.2 : \tkzcname{tkzInit} and \tkzcname{tkzShowBB})

\begin{tikzpicture}
 \tkzInit[xmin=-1,xmax=3,ymin=-1, ymax=3]
 \tkzGrid
 \tkzShowBB[red,line width=2pt]
\end{tikzpicture}

\end{document}