Eli5, How do these work and how could you make stuff like this?

Question

I saw this:

[https://youtu.be/ikbEBp5BeCM] and several other videos that have a similar style, but exactly is it made. Is every possibility just accounted for, or is there a system, or a trick to it?

In: Mathematics

Answer 1

Just look at what every action does. The first one already forces you to the top left corner, or one of the pink squares of the second column.
The second one brings you to one of the 2 green squares on row 1, column 2, or row 2, column one. The third one moves you to either row 2, column 3, or row 3, column 2. Finally, the fourth move brings you to the losing square.