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_15 (opponents VARCHAR, partner VARCHAR)

### Question ###
What is the name of the opponent when anastasia pivovarova was the partner?

### Accurate SQL ###

SELECT opponents FROM table_name_15 WHERE partner = "anastasia pivovarova"