I don't know since I haven't read it, but they could be children, as children often play guessing games in stories.
I'm not sure specifically as I haven't read this particular 'the guessing game short story'. But generally in a guessing game story, it might involve characters trying to guess something like a mystery object, a hidden identity or a secret location.
The mystery aspect makes it interesting. Not knowing what the answer is keeps everyone engaged.
The main characters in 'rules of the game short story' are a daughter and her mother. The daughter is a dynamic character who is growing and learning throughout the story. She is intelligent and uses her skills in the game to navigate her relationship with her mother. The mother, on the other hand, is a more traditional figure. She enforces certain rules and has her own ideas about how the daughter should behave, which often leads to clashes between them.
The two main characters are Rainsford and General Zaroff. Rainsford is a skilled hunter who becomes the victim in Zaroff's sick game. General Zaroff is the antagonist, a bored aristocrat who has turned to hunting humans for entertainment on his island.
I don't know for sure since I haven't read it, but they could be the two players in the chess game.
I'm not sure without reading the story, but it could be a group of friends who are in a competition, like a board game or a race.
I'm not sure as I haven't read the specific story, but they could be competitors in the deadly game, perhaps a strong and ruthless leader type, and a more reluctant but resourceful underdog.
I'm not sure exactly who the main characters are without reading the story, but they could be gamblers or people with a lot at stake in the dice game.
There's no way to tell for sure without reading the story. It might be a group of friends competing in a game, so the main characters would be those friends. Or if it's a story about a big corporate deal (the 'big game' in a business sense), then it could be business people like executives and entrepreneurs.
I don't know as I haven't read the story. It could be a story about athletes, so the main characters might be players on different teams, like a star player and a rookie.