CREATE TABLE table_name_51 (score VARCHAR2, competition VARCHAR2, date VARCHAR2)

A competition of test taking place on 23 Apr 1988 had what as a score?
SELECT score FROM table_name_51 WHERE competition = "test" AND date = "23 apr 1988"
SELECT "score" FROM "table_name_51" WHERE "23 apr 1988" = "date" AND "competition" = "test"