#/# refers to bosses the party intends to kill. VT, Valindra's Tower, has 2 bosses, and 1/2 means first boss only. MC, Malabog's Castle, has 3 bosses thus 2/3 means killing the first 2 bosses. The only other dungeon where you're likely to see this nomenclature is CN, Castle Never, where people do 1/4, 2/4, and typically…