Okay kiddo, let me explain "king, queen, knave" to you in a way that you will understand it easily!
You know how when you play games with cards, there are different cards with different characters on them like hearts, diamonds, spades, and clubs? In the game "king, queen, knave", there are three very special cards that represent three important characters in a kingdom.
The first important character is the "king". He is like the boss of the kingdom and everyone has to listen to him. The king has a very important role because he is the one who makes all the important decisions for the kingdom and he is very powerful.
The second important character is the "queen". She is like the boss's helper and she works alongside him to help make important decisions for the kingdom. The queen is also very important because she often represents the king when he is not there and she has a lot of power too.
The third character is the "knave". He is like the joker of the game and he is a bit tricky. Sometimes he helps the king and queen, but other times he is more interested in looking out for himself. The knave is not as important as the king and queen, but he is still a valuable member of the kingdom.
So in the game, players choose one of the three characters and try to guess which one the other player has chosen. It's like a guessing game and whoever guesses correctly wins. It's a fun way to imagine what it might be like to be a king, queen, or knave in a kingdom!