Magic Square 3x3 Problem

Figure from the 1985 Morrone Patent U.S. 4,548,410.

The Morrone patent (Fig. 3 shown above) shows a version of the Nine Puzzle where instead of a missing square there are 9 pieces and an extra tenth position into which one can be slid so the others can move around like the standard Nine Puzzle; the patent also shown an object of the puzzle to arrange the pieces so that the numbers add to 15 in all directions. Below is an add for Phenyo Caffein which was found tucked into the pages of the green cover version of the 1893 Hoffman book. It presents a 3x3 magic square puzzle. This puzzle is also shown on the back of the Phenyo Caffein solution to the Misfit Puzzle, and Phenyo Caffein also provides a version of the Sectional Checkboard Puzzle.



Further reading:
See also the The Great Fifty Puzzle for 4x4 Magic Squares.
Morrone Patent, from: www.uspto.gov - patent no. 4,548,410
Wikipedia Page, from: http://en.wikipedia.org/wiki/Magic_square