Schrödinger's cats. You play several rounds in which your aim is to hold your own against the others and be the last person left in the game. In the first round, you are each dealt six cards and a physics cat with an individual ability. The first person makes a claim about how many cards of a quantum state (live cat, dead cat or empty box) there are in total among all the cards distributed. Then it's your turn in turn. On your turn, you have the choice between two actions: Either you make a claim that is higher than the previous one, or you challenge the current claim and end the round. At the end of the round, you reveal your hand cards and check the current claim. Whoever was right stays in the game. If you were wrong, you are eliminated. In the next rounds, you play with one person and one card less in your hand - until there is only one person left. This person wins the game. You can use your physics cat's ability once to play a little trickery.