List of NHL playoff series

Columns: Opponent | S | Occurrences | GP | Rec | %
Detroit Red Wings | 23 | 1929 , 1934 , 1936 , 1939 , 1940 , 1942 , 1943 , 1945 , 1947 , 1948 , 1949 , 1950 , 1952 , 1954 , 1955 , 1956 , 1960 , 1961 , 1963 , 1964 , 1987 , 1988 , 1993 | 117 | 12-11 | .522 | Boston Bruins | 16 | 1933 , 1935 , 1936 , 1938 , 1939 , 1941 , 1948 , 1949 , 1951 , 1959 , 1969 , 1972 , 1974 , 2013 , 2018 , 2019 | 83 | 8-8 | .500 | Montreal Canadiens | 15 | 1918 , 1925 , 1944 , 1945 , 1947 , 1951 , 1959 , 1960 , 1963 , 1964 , 1965 , 1966 , 1967 , 1978 , 1979 | 71 | 7-8 | .467 | Chicago Blackhawks | 9 | 1931 , 1932 , 1938 , 1940 , 1962 , 1967 , 1986 , 1994 , 1995 | 38 | 6-3 | .667 | New York Rangers | 8 | 1929 , 1932 , 1933 , 1937 , 1940 , 1942 , 1962 , 1971 | 35 | 3-5 | .375 | Philadelphia Flyers | 6 | 1975 , 1976 , 1977 , 1999 , 2003 , 2004 | 36 | 1-5 | .167 | St. Louis Blues | 5 | 1986 , 1987 , 1990 , 1993 , 1996 | 31 | 2-3 | .400

Example questions:
How many seasons of the NHL playoff series included the opponent of Toronto that has won six Stanley Cup championships since their founding in 1926 ? | How many NHL seasons included the opponent to Toronto Maple Leafs that was the first expansion team in the post-Original Six era to win the Stanley Cup ? | How many NHL playoff seasons included Toronto 's opponent that is frequently referred to in English and French as the Habs ? | How many NHL seasons included the opponent of Toronto that has won the most Stanley Cup championships of any NHL franchise based in the United States ? | How many seasons included the Toronto Maple Leafs ' opponent that plays its home games at Madison Square Garden in the borough of Manhattan ?

Answers:
9 | 6 | 15 | 23 | 8