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_91 ( city VARCHAR, score VARCHAR, result VARCHAR, competition VARCHAR )

### Question ###
Which City has a Result of w, and a Competition of international friendly (unofficial match), and a Score of 1-0?

### Accurate SQL ###

SELECT city FROM table_name_91 WHERE result = "w" AND competition = "international friendly (unofficial match)" AND score = "1-0"