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_22993 ( "Pos" real, "Member Association" text, "Points (total 500)" real, "Clubs" real, "Group stage" real, "Play-off" real, "AFC Cup" real )

### Question ###
which group stage was there 0 play-offs and 12 clubs played in it

### Accurate SQL ###

SELECT COUNT("Group stage") FROM table_22993 WHERE "Play-off" = '0' AND "Clubs" = '12'