Magic
 

http://www.milaadesign.com/wizardy.html
:up:

Didn't work the first time, but the next 6 times after that it guessed right every time!

I'm going to hide under my bed with a tin foil hat on, because someone is reading my thoughts.....

:eek:

Two right and two wrong. :p

Give example of wrong number guessed...

The algorythm is actually simple.. because the resultant number (the one the computer guesses) is always a multiple of 9.
If you look at the "answer" page all multiples of 9 have the same symbol....

So I am interested in a number that it "guessed" wrong

Okay, I get it: I was confused when different symols came up, but I wasn't noticing that it switches the symbols each time; but you're right, the one it assigns is always a multiple of nine.