\begin{tikzpicture}[scale=0.18,every node/.style={font=\tiny}]
\draw (0,0) -- (28,0) -- (28,9) -- (0,9) -- (0,0);
\draw (28,4.5) -- (25,3) -- (27,6) -- (21,3) -- (23,6) -- (17,3) -- (19,6) -- (13,3) -- (15,6) -- (9,3) -- (11,6) -- (5,3) -- (7,6) -- (1,3) -- (3,6) -- (0,4.5);
\draw (27,6) -- (28,7);
\draw (23,6) -- (26,9);
\draw (19,6) -- (22,9);
\draw (25,3) -- (22,0);
\draw (15,6) -- (18,9);
\draw (21,3) -- (18,0);
\draw (11,6) -- (14,9);
\draw (17,3) -- (14,0);
\draw (7,6) -- (10,9);
\draw (13,3) -- (10,0);
\draw (3,6) -- (6,9);
\draw (9,3) -- (6,0);
\draw (5,3) -- (2,0);
\draw (1,3) -- (0,2);
\draw (26,0) -- (28,2);
\draw (0,7) -- (2,9);
\node at (2,1.8){1};
\node at (2,7.2){2};
\node at (6,1.8){2};
\node at (6,7.2){3};
\node at (10,1.8){3};
\node at (10,7.2){4};
\node at (14,1.8){4};
\node at (14,7.2){5};
\node at (18,1.8){5};
\node at (18,7.2){6};
\node at (22,1.8){6};
\node at (22,7.2){7};
\node at (26,1.8){7};
\node at (26,7.2){1};

\node[font=\tiny] at (0.5,8.4){1};
\node[font=\tiny] at (27.5,0.6){1};
\node[font=\tiny] at (0.5,3.8){7};
\node[font=\tiny] at (27.5,5.2){2};
\end{tikzpicture}