Simon shows a very special kind of magic square in which not only the rows, the columns and the diagonals add up to the magic number but also “plus signs”, crosses, sums of diagonals – all in all, thousands of ways to make the magic number (especially if you wrap the grid around a torus). Simon also explains the equation behind the magic!
Simon learned about the equation and the way to make the square from a comment to this video on the SingingBanana channel.
Geeks out of the box 