\documentclass{standalone}

\usepackage{tikz}
\usepackage{shapes}

\begin{document}
\begin{tikzpicture}
  \grid{10}{10}{(-4,-4)}

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

  \staircase{magenta}{(2,1)}
  \staircase{magenta}{(-2,-1)}
  \staircase{magenta}{(-3,2)}
  \staircase{magenta}{(3,-2)}
  \staircase{magenta}{(1,-3)}
  \staircase{magenta}{(-1,3)}

  \square{green}{(2,-1)}
  \square{green}{(-1,1)}
  \square{green}{(1,2)}

\end{tikzpicture}
\end{document}