How to Play Whodunnit Daily

Whodunnit Daily is a daily logic deduction game. You're given a handful of suspects, each making one statement, and you must reason out who is guilty.

The rules

• Exactly one suspect is guilty.
• The guilty suspect's statement is a lie.
• Every innocent suspect tells the truth.
• There is always exactly one culprit consistent with all the clues — no guessing.

The method

1. Read all statements.
2. Pick a suspect and assume they are guilty.
3. Under that assumption, mark each statement true or false.
4. Check the rules: the assumed-guilty one must be lying, and everyone else must be truthful.
5. If anything breaks, that suspect can't be guilty. Repeat. Only one survives.

Worked example

Suspects — Ava: "It was Ben." Ben: "I didn't do it." Cara: "Ava is telling the truth."

Assume Ben is guilty: Ben's "I didn't do it" becomes a lie (good — the guilty lies). Ava's "It was Ben" is true and Ava is innocent (good). Cara's "Ava is telling the truth" is true and Cara is innocent (good). Everything holds, so Ben is guilty. Try Ava or Cara instead and an innocent ends up lying — forbidden. The answer is unique: Ben.

Pro tips

• Find statements that can't both be true — your liar is often in that pair.
• "I'm innocent" claims are the cleanest lever: true iff that suspect really is innocent.
• When in doubt, fully chain out one hypothesis rather than eyeballing.

Try today's puzzle → or see the solution.