\documentclass{standalone}

\usepackage{tikz}
\usepackage{shapes}

\begin{document}
\begin{tikzpicture}

\grid{8}{15}{(-4,-4)}

\ttsquare{teal}{(0,0)}
\ttsquare{teal}{(0,7)}

\ttsquare{cyan}{( 0, 2)}
\ttsquare{cyan}{( 0,-2)}
\ttsquare{cyan}{( 2, 0)}
\ttsquare{cyan}{(-2, 0)}

\ttsquare{cyan}{( 0, 9)}
\ttsquare{cyan}{( 0, 5)}
\ttsquare{cyan}{( 2, 7)}
\ttsquare{cyan}{(-2, 7)}

\end{tikzpicture}
\end{document}