SELECT "Opponent" FROM table_14931 WHERE "Score" = '9 - 6' AND "Attendance" > '31,293'
Who was the opponent of the game that 31,293 people attended that had a final score of 9 - 6.
CREATE TABLE table_14931 (
    "Date" text,
    "Opponent" text,
    "Score" text,
    "Loss" text,
    "Attendance" real,
    "Record" text
)