What Date had a Series of ATCC Round 6?
CREATE TABLE table_name_28 (
    date VARCHAR,
    series VARCHAR
)
SELECT date FROM table_name_28 WHERE series = "atcc round 6"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What Date had a Series of ATCC Round 6? ### Input: CREATE TABLE table_name_28 (
    date VARCHAR,
    series VARCHAR
) ### Response: SELECT date FROM table_name_28 WHERE series = "atcc round 6"