Added Moscow Puzzles

Misc/Moscow Puzzles/problems/101.tex

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+\documentclass[../main.tex]{subfiles}
+
+\begin{document}
+
+	\problem{The Courageous Garrison}
+
+	A courageous garrison was defending a snow fort. The commander arranged his forces as shown in the square frame (the inner square showing the garrison's total strength of 40 boys): 11 boys defending each side of the fort.
+
+	\begin{figure}[h]
+		\centering
+		\includegraphics[width=12cm]{101a}
+	\end{figure}
+
+	The garrison ``lost'' 4 boys during each of the first, second, third, and fourth assaults and 2 during the fifth and last. But after each charge 11 boys defended each side of the snow fort. How?
+
+	\vfill
+
+	\begin{figure}[h]
+		\centering
+		\includegraphics[width=4cm]{101b}
+	\end{figure}
+
+\end{document}