Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_68 (attendance INTEGER, opponent VARCHAR, score VARCHAR)
### Question:
What is the average attendance when Brewers are the opponent with a score of 6–3?
### Answer:
SELECT AVG(attendance) FROM table_name_68 WHERE opponent = "brewers" AND score = "6–3"