Zero Seven is a psychological quiz game where you need to answer correctly the questions that mostly begin with the words «How many...». Any answer must be a whole number from 0 to 7, and the players bid for the number they consider correct with a combination of their number cards so that their sum equals the estimated answer. The players can’t use bidding cards they’ve placed as bets before, so they have to plan carefully which cards they should keep and which ones they are ready to sacrifice to get the full hand back. There is also an “Elementary!” rule which allows to profit from all other players answering correctly. Most of the times the winner is not the one who reads a lot of books, but the one who is the most cunning! —description from the publisher