Greetings fellow magi.
I recently saw an amazing piece of number magic performed over here in the wet UK.
A grid of squares, a chosen number from a spectator, a few frantic seconds of scribbling by the magician, and all the squares now have numbers written in them.
BUT, all 4 corners add up to the spectators number, lines horizontally/ vertically/ diagonally add up etc...any group of 4 squares add up etc.....quite astounding, to me, at least.
Any ideas as to it's availability?
Many thanks.
Darren

What you have seen is called a Magic Square, and I can do no better than point you at my own website, as this is a bit of a speciality of mine.

You will find some interactive Magic Squares, references to lots of books (including my own), links to other websites, and more.

Happy hunting!

Mark,
Many thanks for your prompt assistance!
I'm on my way there right now!
Cordially,
Darren

I recommend Mark's website: it's excellent.

If you can track it down, Bert Allerton's book on close-up magic has an excellent chapter on magic squares.

Thanks,
Richard Green