I've fiddled with magic squares since I got a book called "MathMagic" when I was a kid. I can make a
basic 4x4 5x5, 6x6 square in less than a minute, and transpose it in a minute so you can make it add
up to any number over the base for that square. But this is enough different that it's definately
worth owning, plus I can apply it to the larger squares. Tons faster and much less math. Much less!
Get this!