CASE ZERO
Case 318

Who is guilty?

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

Amira: “Neither Jack nor Mae is guilty.”
Jack: “The guilty person is either Jack or Hugo.”
Tess: “None of Amira, Jack or Tess is guilty.”
Hugo: “Mae is guilty.”
Mae: “Neither Amira nor Mae is guilty.”
Random case
Solution: Hugo 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.