\subsection{Sokoban} \screenshot{plugins/images/ss-sokoban}{Sokoban}{fig:sokoban} The object of the game is to push boxes into their correct position in a crowded warehouse with a minimal number of pushes and moves. The boxes can only be pushed, never pulled, and only one can be pushed at a time. The controls are: \begin{table} \begin{btnmap}{}{} UP/DOWN/LEFT/RIGHT & Move the ``sokoban'' up, down, left or right \\ F1 & Back to previous level \\ F2 & Restart level \\ F3 & Go to next level \\ ON & Undo last movement \\ OFF & Exit sokoban \\ \end{btnmap} \end{table}