- Rule Hunt A machine knows one rule about three numbers. Test it until you can prove what the rule is.
- Telephone A famous title, described in one sentence and passed along six people. Name the original from what survives.
- Stereotypicle One country, six fond notes about it from the rest of the world. Every wrong pin says how far and which way.
- Stamped One English word a day and the passport it travelled on. Start from its oldest stamp and name the word it became.
- Brink Five prompts a day, each a rule and a push. Go as far as you can without going over; break the rule and the ground gives way.
More machines are being built.