Has an AFL game ever ended 112-84?
It has. 112-84 has been a AFL final 5 times in 16,622 games. The first was Richmond beat Fitzroy on May 15, 1937; the latest was Carlton beat Hawthorn on September 13, 1986.
That makes 112-84 the 589th most common final score out of 6,607 that have ever occurred in AFL. One point away, 113-84 has happened 2 times and 112-85 has happened 3 times. At one point the score disappeared for 34 years, between 1947 and 1981.