\documentclass{standalone}

\usepackage{tikz}
\usepackage{shapes}

\begin{document}
\begin{tikzpicture}
\foreach \i in {0,...,3}{
  \ttsquare{teal}{(2*\i,0)}
  \ttsquare{teal}{(2*\i,2)}
  \ttsquare{teal}{(2*\i,4)}
}
\grid86{[color=red, dashed](-1,-1)}
\foreach \i in {0,...,3}{
  \ttsquareempty{(2*\i,0)}
  \ttsquareempty{(2*\i,2)}
  \ttsquareempty{(2*\i,4)}
}
\end{tikzpicture}
\end{document}
