"General Zaroff, what you speak of is murder." Rainsford is strongly against what Zaroff does now for hunting. This is a man v. man conflict because they're at odds with the idea. This scene foreshadows what will happen later on in the story. (This scene is taken place at General Zaroff's house)
"No General, I will not hunt." Rainsford says that he will not hunt because he does not want to play General Zaroff's game, and he doesn't want to die pleasing him. General Zaroff says that if Rainsford does not play then Rainsford will be handed to Ivan, for which, Ivan would possibly murder him as well. This is a Man v. Man conflict because General Zaroff does not give Rainsford a choice, and no matter what Rainsford decides to do, there is a possilbity that he would die.
"A man, who had been hiding in the curtains of the bed, was standing there." Rainsford was hiding behind the curtains of the bed because he came to conclusion that in order for him to win, he had to be inside the house and kill General Zaroff. He decided to swim around the island to get to the house, it was faster than walking through the jungle. General Zaroff realized that Rainsford had won the game. This is a man v. man conflict because Rainsford had to kill Zaroff, and he ended up feeding him to the dogs. It was either himself of Zaroff.