Spymasters know the secret identities of 25 agents. Their teammates know the agents only by their codenames. Spymasters take turns giving one-word clues. A clue may relate to multiple words on the table. The field operatives try to guess which words their spymaster meant. When a field operative touches a word, the spymaster reveals its secret identity. If the field operatives guess correctly, they may continue guessing, until they run out of ideas...