\documentclass{standalone}
\usepackage[paperwidth=\maxdimen,paperheight=\maxdimen]{geometry}
\usepackage{pgf,tikz}
\begin{document}

\begin{tikzpicture}[x=24pt, y=24pt, draw=white, double=black, line width=2.1pt]
	\node (2) at (0, 0) {$2$};
	\node (3) at (2, 0) {$3$};
	\node (1) at (7, 0) {$1$};
	\node (6) at (14, 0) {$6$};
	\node (4) at (21, 0) {$4$};
	\node (5) at (25, 0) {$5$};

	\draw[double=white,draw=green] (4) -- (21, -5) -- (11, -5) -- (11, 3) -- (3, 3) -- (3, -1) -- (1, -1) -- (1, 5) -- (13, 5) -- (13, -1) -- (15, -1) -- (15, 5) -- (25, 5) -- (5);
	\draw[double=white,draw=blue] (2) -- (0, -2) -- (4, -2) -- (4, 1) -- (8, 1) -- (8, -8) -- (24, -8) -- (24, 2) -- (20, 2) -- (20, -3) -- (12, -3) -- (12, 4) -- (2, 4) -- (3);
	\draw[double=white,draw=red] (6) -- (14, 8) -- (29, 8) -- (29, -9) -- (7, -9) -- (1);
	\draw[double=green] (3) -- (2, -10) -- (28, -10) -- (28, 4) -- (21, 4) -- (4);
	\draw[double=blue] (5) -- (25, -4) -- (17, -4) -- (17, 2) -- (9, 2) -- (9, -1) -- (6, -1) -- (6, 7) -- (19, 7) -- (19, -1) -- (22, -1) -- (22, 3) -- (27, 3) -- (27, -7) -- (14, -7) -- (6);
	\draw[double=red] (1) -- (7, 6) -- (18, 6) -- (18, -2) -- (23, -2) -- (23, 1) -- (26, 1) -- (26, -6) -- (16, -6) -- (16, 1) -- (10, 1) -- (10, -2) -- (5, -2) -- (5, 2) -- (0, 2) -- (2);
\end{tikzpicture}
\end{document}