Abstract: A game including a game board is provided with two recesses and including two sets of pieces which may be assembled to reconstitute two similar pictures, one picture within and filling each recess, the pieces of the two sets being of the same shape and size but each piece belonging to one set only and not the other by virtue of the pieces bearing non-interchangeable elements of pictures to be reconstituted. The puzzle may be played competitively, with two players racing against one another to complete pictures.