Yes, the problem with the mines is really serious, but we just didn't have time to come up with a good solution. As for the gameplay, the main thing is to create a chain of structures: mine -> factory -> city (house). I didn't understand much about the scoring algorithm invented by andolg, but as far as I understood, if there are several paths from different mines to the factory, then there will be more points. I am very glad that you liked the game!