Case 300
Who is guilty?
Exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.
Chloe: “The guilty person is one of Chloe, Leo or Kai.”
Leo: “The guilty person is one of Leo, Esme or Kai.”
Esme: “Neither Esme nor Nina is guilty.”
Kai: “Esme is guilty.”
Nina: “None of Chloe, Esme or Nina is guilty.”
Random case Solution: Kai 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.