Black Vienna^*

Players try to uncover three spies who are hiding their identities among twenty-seven possible suspects represented by cards with letters. After removing three cards that represent the spies, the remaining cards are dealt to the players. They take turns asking each other for information, placing a card with three letters in front of the informant, who then indicates how many of those letters belong to their secret collection. The first player to correctly identify the three missing spies wins.