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_1064 ( "Pos" real, "Member Association" text, "Points (total 500)" real, "Clubs" real, "Group stage" real, "Play-off" real, "AFC Cup" real )

### Question ###
How many times has the playoff been 1 in the contest for the afc cup?

### Accurate SQL ###

SELECT COUNT("AFC Cup") FROM table_1064 WHERE "Play-off" = '1'