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_204_675 ( id number, "year" number, "game of the year" text, "abstract strategy" text, "advanced strategy" text, "family" text, "family card" text, "family strategy" text, "party" text, "puzzle" text, "word" text, "historical simulation" text, "other" text )

### Question ###
true or false , in 1991 there was not a game winner in the advanced strategy catagory .

### Accurate SQL ###

SELECT (SELECT "advanced strategy" FROM table_204_675 WHERE "year" = 1991) IS NULL