10 questions · hard · Trivia quiz · Boston Celtics
The full count of eighteen, taken apart by decade and by position in the order. Eleven titles in the Russell era, two in the 1970s, three in the Bird era, then 2008 and 2024: ten counting questions whose answers can each be re-derived from the title lists in the file, including the share of the total that Red Auerbach coached and the ordinal of four individual title years.