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_1817852_1 ( destroyed VARCHAR, survived VARCHAR )

### Question ###
If there were 14 in 1990 and 6 survived how many were destroyed?

### Accurate SQL ###

SELECT destroyed FROM table_1817852_1 WHERE 1990 = 14 AND survived = 6