This is a board game I designed based on chess. As you can see, the rules only give you information about four animals, but the actual game includes much more animals. So to play this game, you need to communicate with other players, and come up with your own set of rules.
This game design resembles the limitation of teaching inside classroom. We can only receive limited amount of knowledge in the classroom, but when we go outside and connect with the real world and the society, there are many unknown things to you. To work them out, you need to communicate with others or form your own set of rules.