\subsection{Sliding Puzzle}
\begin{figure}[h!]
\begin{center}
\includegraphics[width=4cm]{plugins/images/ss-sliding-\genericimg.png}
\end{center}
\caption{Sliding puzzle}
\end{figure}

The classic sliding puzzle game.  Rearrange the pieces so that you can
see the whole picture.

Key controls:

\begin{table}[h!]
\begin{center}
\begin{tabular}{@{}ll@{}}\toprule
\textbf{Key} & \textbf{Action}\\\midrule
UP/DOWN/LEFT/RIGHT & Moves \\
F1 & Shuffle \\
F2 & Change the picture \\
OFF & Stop the game \\\bottomrule
\end{tabular}
\end{center}
\end{table}