This game teaches you to do a simple stage magic trick called "21 Cards". The cat will secretly choose a random card. You, the magician, have to guess which card it is. You will have 3 chances to get clues from the cat. Each time, you get to stack the cards into piles in any order, and the cat will tell you which pile has the secret card. If you are smart about how you stack the cards (or just know the trick), it's not hard to find out which one is the secret card. Even if you don't cheat...!
