Nine rows of nine lights, all initially off.  Clicking a light sets it to on.  The game terminates when a "plus" sign is illuminated in the 5 middle switches of the board (i.e. cell(4,5), cell(5,4), cell(5,5), cell,(5,6), and cell(6,5)).  The lights at the corners of the "plus" (i.e. cell(4,4), cell(4,6), cell(6,4), , and cell(6,6)) should be off.  The status of the other lights does not matter.  Has intermediate state values.