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_6 (year VARCHAR, playoffs VARCHAR, league VARCHAR)
### Question:
What year had a 1st round playoff in the NASL indoor league?
### Answer:
SELECT year FROM table_name_6 WHERE playoffs = "1st round" AND league = "nasl indoor"