Implemented the userHasOneTheGame instance method in WordFinder, which appears fully functional.  In order to do that, I also created another property in WordFinder that tracks the previously guessed characters and stores them in a NSMutableString.
Added EquivalentPartition Class.  I need to change the number of equivalent partitions that are created to deal with duplicate characters.  The update word list methods in WordFinder.m need to be updated.
All combinations are now successfully checked.  There is still some tweaking that needs to be implemented to fix a problem for when a word satisfies multiple combinations.
Equivalent Partition creation is now working as expected.