Fix and make suggestions on current python code for small game program - Quick fix for £10

I have the following program that seeks to complete the following task: [login to view URL] The program works to some degree but needs fixes in the following areas: 1. The "go back" feature on a double roll 2. The obstacles being read from file I would like a fix to the program (not a new piece of code, but a correction with explanation of the current one) and some comments and help/tutoring/explanations as to how to improve this code, what is wrong with it, what could be better, declaration of global variables, etc. As this is not a full request for a program, but just a fix and hopefully a small bit of trouble shooting, it is only put up for a £10 for anyone who's interested. For GREAT explanations and any wise and helpful advice that would take me/us further as programmers, we would happily add a bonus. Following files have been uploaded: Python file (main) Two text files (used to read/write from) Task file (PDF)