There's an entire book dedicated to this subject: https://pragprog.com/book/jbmaze/mazes-for-programmers https://pragprog.com/book/jbmaze/mazes-for-programmers

There's an entire book dedicated to this subject: https://pragprog.com/book/jbmaze/mazes-for-programmers https://pragprog.com/book/jbmaze/mazes-for-programmers It is not as hard as it looks, it is essentially a drunkard's walk. And some strategies to remove bias, which that book covers nicely.