CREATE TABLE table_203_683 (id DECIMAL, "season" TEXT, "league" TEXT, "gold" TEXT, "silver" TEXT, "bronze" TEXT, "winning manager" TEXT)

what was the only season that skeid won gold ?
SELECT "season" FROM table_203_683 WHERE "gold" = 'skeid'
SELECT "season" FROM "table_203_683" WHERE "gold" = 'skeid'