Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_77 ( date VARCHAR, surface VARCHAR, tournament VARCHAR )

### Question ###
What date was the game played on the hard surface at the Tournament of Sweden f2?

### Accurate SQL ###

SELECT date FROM table_name_77 WHERE surface = "hard" AND tournament = "sweden f2"