How to Play
Whodunit
Whodunit is a classic logic-grid mystery. Four murders were committed, and every suspect used exactly one weapon in exactly one location. Your job is to work out who used which weapon, and where, using only a list of indirect clues.
Rules
- There are four suspects, four weapons, and four locations. Each suspect is paired with exactly one weapon and one location.
- Read every clue carefully. Most are indirect ("the Professor did not use the Knife") rather than direct answers.
- Tap a grid cell to cross it out (mark "no"), tap again to confirm it as a match ("yes"), tap a third time to clear it.
- The case is closed once every suspect has a confirmed weapon and a confirmed location.
Tips & Strategy
- Start by crossing out every combination that a clue directly rules out. These are the safest moves, with no guessing.
- Once a suspect's row (or a weapon/location's column) has only one open cell left, that cell must be a "yes" even without a clue saying so directly.
- An "either/or" clue becomes useful as soon as you can rule out one of the two options in some other way. The other option is then confirmed.
- Cross out a cell as soon as you've ruled it out instead of leaving it blank. That keeps the remaining open cells much easier to track.
Frequently Asked Questions
- Do I need to guess to solve Whodunit?
- No. Every case can be solved by logic alone: comparing the clues with the grid always leaves one certain match for each weapon and location, so you never have to choose between two suspects.
- What does crossing out a cell do?
- It marks a suspect as definitely not having this weapon or location. It's a memory aid and doesn't confirm anything by itself.
- Does confirming one cell affect the rest of its row or column?
- No, each cell is independent. Confirming a suspect's weapon doesn't automatically cross out their other possible weapons; you do that yourself.
