Which Date has an Attendance larger than 16,186, and Points smaller than 52, and a Record of 21–16–9?
CREATE TABLE "regular_season" (
  "date" text,
  "opponent" text,
  "score" text,
  "loss" text,
  "attendance" real,
  "record" text,
  "arena" text,
  "points" real
);
SELECT "date" FROM "regular_season" WHERE "attendance">'16,186' AND "points"<52 AND "record"='21–16–9';