I know I'm not the only one that would like a crack at that robot!
Slim, I think that the FB Beginner class has advanced well beyond FB Hacker now. However, I still need ideas for challenges for people not as advanced. — hartnell
Here is an idea for a challenge.
The robot has locked Sandman's lunch in his robot-stomach. To open up the robots stomach, you must print a key that looks like:
k k0k F F F