Case 291
Who is guilty?
Exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.
Ruby: “Jade is innocent.”
Theo: “The guilty person is one of Theo, Mila or Jade.”
Mila: “Mila is innocent.”
Finn: “Neither Theo nor Jade is guilty.”
Jade: “None of Ruby, Theo or Jade is guilty.”
Random case Solution: Mila 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.