Slot machine result check code

I'm coding a slot machine in Python and have most of the code except from the method to check the results and edit the users credit.

Here is my current code:

http://ift.tt/2qzzap1

I want to make another method within the fruit class called check for example. I'm just looking for some guidance on how to structure the if statements since I don't want a massive list of them. These are the variations of results I wish to check for:

• Two slots are the same
• Two slots are skulls
• Three slots are the same
• Three slots are bells
• Three slots are skulls

The positions of the results do not matter so it can be any of the variations in any slot(s)