Stumped it with Severian from The Book of the New Sun. It did get the first three I threw at it fairly easily. It even guessed Ani Difranco eventually.
One of my best friends is named Kevin Flynn And you know the peanut butter jelly time flash? That's his work.
I tried Elminster the Mage and it got it in 20!
I tried the dragon from Farmer Giles of Ham but I might have mis answered some of the questions (for instance I couldn't remember what color he is, red was my guess).
Ok, I must admit I have used things like this before, and normally they don't work well. But DAMN! I was going to go on a stump it, but it guesses every time! Consider me impressed!
3 strikes, he's out...Didn't get Aziraphale, the angel in the Terry Prachet/Neil Gaimen novel "Good Omens" either..Came close though, he did name two archangels.
Stumped it with Greta van Susterenen. It did get Jack Torence from The Shining in like 12 questions and Roland Deschaine of Gilead (Dark Tower series) in like 15. I'm pretty impressed (it was guessing katie couric and barbara walters when I beat it).