246: Labyrinth Puzzle
Title text: And the whole setup is just a trap to capture escaping logicians. None of the doors actually lead out
This comic alludes to a famous Knights and Knaves-type logic puzzle, in which there are two doors and two guards. One guard always lies, and the other always tells the truth. One of the doors leads to freedom, and you can only ask one guard one question. The solution to this riddle involves a very tricky question indeed, and one would in the xkcd-version risk a stabbing from the third guard. If you want to give the original puzzle a try for yourself, don't read the spoiling next paragraph.
Solution: Ask one guard (it doesn't matter which one) which door the other guard would say leads out. The door indicated doesn't lead out.
- Black Hat: And here we have the labrinth guards. One always lies, one always tells the truth, and one stabs people who ask tricky questions.