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_84 (diff INTEGER, played INTEGER)
### Question:
What is the average diff when games played are more than 6?
### Answer:
SELECT AVG(diff) FROM table_name_84 WHERE played > 6