An oldie, but still fun

Can you figure out how this works?

1) Go to the link below. After reading each window, click on the boy in the lower right corner of the picture.

2) In the last window type in your answer in the white box using the Keyboard (there is NO cursor).

3) Watch the paper in the boy's hand. You will be amazed. And no, I don't know how it's done. Click here:

Fido Puzzle


/ˈɪzəˌbɛl/ pink 5
I wish he'd guess my original number, then that's more cool. :lol:

Just a guess about how it works:
I wonder if the responses are always digits that add up to 9. So when you write the other number, it's easy to guess what number you didn't write.


Registered Member
Neat, he got it the first time. I remember something along those lines we did in Middle or High school where you have someone start out with a number do a few math problems through several steps and then you could guess their answer, but I don't remember how it was done.