\documentclass{standalone}

\usepackage{tikz}
\usepackage{shapes}

\begin{document}
\begin{tikzpicture}
  \grid{8}{8}{(-4,-4)}

  \square{green}{(-1,3)}
  \square{green}{(0,3)}
  \square{green}{(1,3)}
  \square{green}{(3,-1)}
  \square{green}{(3,0)}
  \square{green}{(3,1)}
  \square{green}{(-1,-3)}
  \square{green}{(0,-3)}
  \square{green}{(1,-3)}
  \square{green}{(-3,-1)}
  \square{green}{(-3,0)}
  \square{green}{(-3,1)}

  \square{green}{(2,2)}
  \square{green}{(2,-2)}
  \square{green}{(-2,2)}
  \square{green}{(-2,-2)}

  \disk{cyan}{(0,0)}

\end{tikzpicture}
\end{document}