Case 331
Who is guilty?
Exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.
Ruby: “Neither Theo nor Jade is guilty.”
Theo: “The guilty person is one of Theo, Finn or Jade.”
Mila: “Finn is guilty.”
Finn: “None of Mila, Finn or Jade is guilty.”
Jade: “Theo is innocent.”
Random case Solution: Finn 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.