CREATE TABLE table_35527 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Game site" TEXT, "Attendance" FLOAT)

Which Date has a Result of w 13 6?
SELECT "Date" FROM table_35527 WHERE "Result" = 'w 13–6'
SELECT "Date" FROM "table_35527" WHERE "Result" = 'w 13–6'