I also used a program of dubious origin which gave an advantage. This is the easiest cheat that gives a minimal advantage. It's easy to spot because it's used like this:
The first stage is you creating a game, because only the creator of the game can save it. This is what is needed. The game is saved, and the game file ends up in the maps/save folder.
This saved file is added to the program in which you can look closely to see the squares, this is a town hall, therefore this is how the spot is calculated.
How to notice: you and everyone present have a saved game file. It can be saved just like that (by accident, for example), or it can be saved for the purpose of using a cheat.
