\documentclass[tikz,border=5pt]{standalone}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}[baseline=0cm, scale=0.5]
\node (a) at (0,0) {};\node (b) at (-2,-2) {};\node (c) at (0,-4) {};\node (d) at (2,-2) {};\node (e) at (-5,-6) {};\node (f) at (5,-6) {};
\draw[thick] (b)--(e)--(-3,-8)--(-5,-10)--(5,-10)--(7,-8)--(5,-6)--(d);
\draw[thick] (e)--(-7,-8)--(-5,-10);
\draw[thick] (5,-6)--(3,-8)--(5,-10);
\draw[thick] (-5,-6)--(-3,-8)--(-5,-10);
\draw[thick] (a)--(b)--(c)--(d)--(a);
\draw[fill=white] (-1.5,-.5) rectangle (1.5,.5);
\draw[fill=white] (-1,0)--(1,0);
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\draw[radius=.35,fill=white] (0,0) circle node {2};
\draw[radius=.35,fill=white] (1,0) circle node {3};
\draw[fill=white] (-3.5,-2.5) rectangle (-.5,-1.5);\draw[thick] (-3,-2)--(-1,-2);
\draw[radius=.35,fill=white] (-3,-2) circle node {3};
\draw[radius=.35,fill=white] (-2,-2) circle node {2};
\draw[radius=.35,fill=white] (-1,-2) circle node {3};
\draw[fill=white] (3.5,-2.5) rectangle (.5,-1.5);\draw[thick] (3,-2)--(1,-2);
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\draw[fill=white] (-1.5,-4.5) rectangle (1.5,-3.5);\draw[thick] (-1,-4)--(1,-4);
\draw[radius=.35,fill=white] (-1,-4) circle node {3};
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\draw[fill=white] (-6.5,-6.5) rectangle (-3.5,-5.5);\draw[thick] (-6,-6)--(-4,-6);
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\draw[radius=.35,fill=white] (-4,-6) circle node {3};
\draw[fill=white] (-8.5,-8.5) rectangle (-5.5,-7.5);\draw[thick] (-8,-8)--(-6,-8);
\draw[radius=.35,fill=white] (-8,-8) circle node {2};
\draw[radius=.35,fill=white] (-7,-8) circle node {1};
\draw[radius=.35,fill=white] (-6,-8) circle node {3};
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\draw[radius=.35,fill=white] (-2,-8) circle node {2};
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\draw[radius=.35,fill=white] (-4,-8) circle node {3};
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\draw[radius=.35,fill=white] (-6,-10) circle node {2};
\draw[radius=.35,fill=white] (-5,-10) circle node {1};
\draw[radius=.35,fill=white] (-4,-10) circle node {2};
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\draw[radius=.35,fill=white] (4,-6) circle node {1};
\draw[radius=.35,fill=white] (5,-6) circle node {3};
\draw[radius=.35,fill=white] (6,-6) circle node {1};
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\draw[radius=.35,fill=white] (3,-8) circle node {3};
\draw[radius=.35,fill=white] (4,-8) circle node {1};
\draw[fill=white] (5.5,-8.5) rectangle (8.5,-7.5);\draw[thick] (8,-8)--(6,-8);
\draw[radius=.35,fill=white] (6,-8) circle node {1};
\draw[radius=.35,fill=white] (7,-8) circle node {3};
\draw[radius=.35,fill=white] (8,-8) circle node {2};
\draw[fill=white] (3.5,-10.5) rectangle (6.5,-9.5);\draw[thick] (4,-10)--(6,-10);
\draw[radius=.35,fill=white] (4,-10) circle node {2};
\draw[radius=.35,fill=white] (5,-10) circle node {3};
\draw[radius=.35,fill=white] (6,-10) circle node {2};
\end{tikzpicture}
\end{document}