Drawing path between nodes using TIKZ

Question

TeX Code

\documentclass{standalone}
\usepackage{tikz}

\begin{document}

\begin{tikzpicture}

  \coordinate (A) at (0, 0);
  \coordinate (B) at (2, 3);

  \node[draw,minimum width=10mm] at (A) {};
  \node[draw,minimum width=10mm] at (B) {};
\end{tikzpicture}

\end{document}

How such path can be drawn using Tikz?

Answer 1

you can make a temporary relative node and use orthogonal identifiers

\begin{tikzpicture}

  \node[draw,minimum width=10mm] (A) at (0, 0) {};
  \node[draw,minimum width=10mm] (B) at (2, 3) {};

\draw[->] (A) |- ++(1,-1) |- (B);
\end{tikzpicture}

or use paths.ortho library of our qrrbrbirlbel but I don't know the latest status of it. I remember him saying about incompatibility somewhere.