Original Description:
Seven sets of triplets — born in the same year — get together at a fancy dress party to celebrate. Each family of triplets dresses the same. After everyone arrives, there are 3 aliens, 3 farmers, 3 surgeons, 3 marine biologists, 3 bushrangers, 3 astronauts and 3 pirates.
Three tables have been arranged with 7 seats around each table. Each family of triplets wants to hear as much gossip as possible about the other families, so they decide that each triplet should sit on a different table. They also decide that a differently dressed person should sit next to each triplet. For example, if one farmer sits next to a pirate on one table, then the other farmers cannot sit next to a pirate on their tables.
The challenge is to follow these rules to arrange the triplets at each table so the party can begin!