The object of this game is to move the large square block (the
one with the green circle in the middle) to the lower right-hand corner
of the board.
There are 12 different starting positions that can be selected using
buttons to the left of the puzzle.
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<applet codebase=. code=DD2.class width=480 height=310
 alt="Sorry.  Your browser does not support Java">
Oops.  Your browser does not support java.
</applet>
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This game is based on a wooden puzzle named ``The Dirty Dozen''
purchased from a shop near Faneuil Hall in Boston and manufactured
by The Square Root Company, 945 Eichler Drive, Mountain View, CA 94040.
Neither the puzzle, nor  its packaging bore any copyright or
patent markings.
However,
this java implementation of the puzzle is copyright 1996 by
<a href=../../drh/index.html>D. Richard Hipp</a>.