Answer:
Theme:
The theme of "rules of the game" is the idea that society's rules and expectations can limit one's ability to truly be oneself.
Message or big idea:
The author communicates this message through the story's main character, Waverly, who struggles to reconcile her desire to be a successful chess prodigy with her mother's traditional expectations for her to become a skilled Chinese wife.
Two specific details:
Two specific details from the text that support this theme are Waverly's internal conflict between her love for chess and her fear of disappointing her mother and the cultural pressure placed on Waverly to conform to traditional gender roles.