Case 187
Who is guilty?
Exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.
Ruby: “The guilty person is one of Ruby, Theo or Mila.”
Theo: “The guilty person is one of Ruby, Mila or Finn.”
Mila: “The guilty person is either Ruby or Theo.”
Finn: “None of Theo, Finn or Jade is guilty.”
Jade: “Neither Ruby nor 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.