CREATE TABLE table_39793 ("Position" FLOAT, "Team" TEXT, "Points" FLOAT, "Played" FLOAT, "Drawn" FLOAT, "Lost" FLOAT, "Against" FLOAT, "Difference" TEXT)

What is the lowest Points when against is 50, and there are less than 20 played?
SELECT MIN("Points") FROM table_39793 WHERE "Against" = '50' AND "Played" < '20'
SELECT MIN("Points") FROM "table_39793" WHERE "Against" = '50' AND "Played" < '20'