Tell me the score on april 27 with visitor of buffalo
CREATE TABLE "eastern_conference_quarter_finals_vs_2" (
  "date" text,
  "visitor" text,
  "score" text,
  "home" text,
  "record" text
);
SELECT "score" FROM "eastern_conference_quarter_finals_vs_2" WHERE "visitor"='buffalo' AND "date"='april 27';