Name the scoreboard for total being 23.5
CREATE TABLE "table1_21234111_6" (
  "order" real,
  "couple" text,
  "karen" text,
  "nicky" text,
  "jason" text,
  "ruthie" text,
  "robin" text,
  "total" text,
  "scoreboard" text,
  "song" text,
  "public_vote_pct" text,
  "result" text
);
SELECT "scoreboard" FROM "table1_21234111_6" WHERE "total"='23.5';