There are three boxes, but only one of them has gold inside. Each box has a message printed on it — exactly one of the three messages is true, and the other two are lies.
- The first box says: “Gold is in this box.”
- The second box says: “Gold is not in this box.”
- The third box says: “Gold is not in Box 1.”
Which box contains the gold?
Send your solutions to DecisionManagementCommunity@gmail.com, or open a pull request to add yours here.
One submitted solution (Prolog, by Matteo Redaelli) was originally published as an external write-up whose link no longer resolves. If you’re the author (or know a working link), please open a pull request adding the
urlfield back.