I'm a fan of the crash and slots game (especially the reactoonz and sweet bonanza) but I never try out the mines games either and I dont understand the concept of the game aswell and as a gambler when you dont understand the rules of the game then you are eligible to play it.
The concept of mines is easy to understand, you just guess the boxes that you think do not contain a bomb because when you happen to choose the one with the bomb, the round match is over. The only really difficult thing is to win because the only thing you can do in this game is a guess, there are no hints that will help you to have a chance to avoid those who should not be chosen.