Case 159
Who is guilty?
Exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.
Isla: “The guilty person is either Sam or Eva.”
Sam: “Neither Isla nor Freya is guilty.”
Freya: “Neither Isla nor Sam is guilty.”
Cole: “Neither Sam nor Freya is guilty.”
Eva: “Freya is guilty.”
Random case Solution: Eva 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.