Case 055
Who is guilty?
Exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.
Isla: “None of Isla, Sam or Cole is guilty.”
Sam: “Neither Cole nor Eva is guilty.”
Freya: “Freya is innocent.”
Cole: “Neither Sam nor Freya is guilty.”
Eva: “The guilty person is either Isla or Sam.”
Random case Solution: Isla 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.