Who Farted?

About Who Farted?

Who Farted? puts a knights-and-knaves logic puzzle inside a crowded lift. The doors are stuck between floors, the passengers stand in numbered spots from left to right, and each makes one statement: a denial, a claim that someone else is lying, or a hint about where the smell came from. An elevator notice above the statements gives the day's rule, which on most days is that only the culprit lies.

The week runs like a newspaper puzzle, from one star on Monday to five on Sunday. Tuesday's statements are about where people stand, with Marcel the mime pointing instead of talking. Wednesday brings Biscuit the dog, who cannot speak but can be guilty. Thursday adds an innocent liar, Friday uses if-then statements, Saturday has two culprits and Sunday packs seven people in with an innocent liar. Every puzzle is checked to have exactly one answer.

You can tap passengers to mark them innocent or suspicious as notes, and Sniff gives a hint about where the culprit is standing, at the cost of showing on your shared result. Accusing the wrong person lets the culprit get away, so the point is to be sure first. Past elevators are in a calendar archive and count toward your totals but not your streak. It needs no sign-up and can be played in English, Spanish, Portuguese, French and German. It is one of Ana Puzzle's daily games.

How to play Who Farted?

1. Read the elevator notice for today's rule, usually that only the culprit lies.
2. Read each passenger's statement; spots are numbered from left to right.
3. Tap passengers to mark them innocent or suspicious as you reason.
4. Assume each suspect in turn is guilty and check whether everyone else's statement still holds.
5. Press Accuse and tap the culprit once only one suspect fits; a wrong accusation ends the puzzle.

Screenshots

Tips

• Start with statements that call someone else a liar: when only the culprit lies, one of those two is guilty.
• Check the weekday before you start: Thursday and Sunday have an innocent liar and Saturday has two culprits.
• Save Sniff for when you are truly stuck, since it shows on your shared result.

Questions