What is the internal conflict for Zaroff?

There are quite a few conflicts that the characters are faced with in this short story. Zaroff's major internal conflict stems from the fact that he no longer enjoys hunting animals.  Zaroff's internal conflict is that he does not see the challenge in hunting animals and needs to find a more intelligent type of prey to hunt -- for him this prey becomes man.  The internal conflict then becomes -- does he hunt man or does he continue to hunt something that he does not see a point in hunting.  Zaroff obviously makes the decision to hunt man.