when you start, there's a random number one from six, when you click and spin, you chose a random number. if this is the number the breaker is in. you lose. after every time you spin, you narrow the barrels available, this will slowly limit options until you are force to lose. after every safe turn though. you have the ability to reset the barrels available along with the ones the breaker is in to their original state. you can do this with replenish or the red button.