CREATE TABLE table_56303 ("Date" TEXT, "Opponent" TEXT, "Score" TEXT, "Loss" TEXT, "Attendance" TEXT, "Record" TEXT)

What was the date of the Mariners game that had a score of 1-12?
SELECT "Date" FROM table_56303 WHERE "Score" = '1-12'
SELECT "Date" FROM "table_56303" WHERE "Score" = '1-12'