CASE ZERO
Case 106

Who is guilty?

Exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.

Ava: “The guilty person is one of Eli, Miles or Zoe.”
Eli: “Zoe is innocent.”
Nora: “The guilty person is one of Ava, Eli or Nora.”
Miles: “Neither Eli nor Zoe is guilty.”
Zoe: “Neither Miles nor Zoe is guilty.”
Random case
Solution: Ava 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.