A New CAPTCHA
My son, Spane, who was five years old at the time, came up with this game one day when we were waiting in a long, long line. He said "What letter is T plus 5?" and I said "Y", and he said "Correct!". I was really amazed that he could do that in his head, since I still had to use my fingers. Recently, I was lurking in one of the developers' groups and followed a discussion on image CAPTCAs, how terrible they were, and thought Spane's game might make a good CAPTCHA. Well, here it is. Give it a try!