Case 327
Who is guilty?
Exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.
Isla: “Eva is innocent.”
Sam: “The guilty person is one of Isla, Freya or Eva.”
Freya: “The guilty person is one of Sam, Freya or Eva.”
Cole: “None of Isla, Freya or Cole is guilty.”
Eva: “Neither Freya nor Cole is guilty.”
Random case Solution: Sam 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.