Case 009
Who is guilty?
Exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.
Maya: “Owen is innocent.”
Noah: “Neither Maya nor Lena is guilty.”
Lena: “Neither Maya nor Owen is guilty.”
Owen: “The guilty person is either Maya or Iris.”
Iris: “The guilty person is one of Noah, Lena or Owen.”
Random case Solution: Iris is guilty. Testing each possible culprit leaves this as the only assignment where the culprit's statement is false and all four innocent statements are true.