Longest uncrossed knight's path

Longest uncrossed knight's path is a problem which involves moving a knight (the chess piece) from one location on a chessboard to another location, without visiting the same square twice and without the knight moving in a direction which creates a line that crosses itself. This is a difficult problem to solve because the knight can move in many different directions at once, making it hard to plan out a path that goes from point A to point B without crossing itself. To solve this problem, people have to come up with an algorithm that tries every possible combination of knight moves until it finds the one that reaches the destination without crossing itself.