(A1) Boston Bruins vs. (A4) Hartford Whalers This was the second playoff meeting between these two teams. This was a rematch of last year's Adams Division Semifinals in which Boston won in seven games. (A2) Montreal Canadiens vs. (A3) Buffalo Sabres This was fifth playoff series between these two teams, and were meeting for the second straight year. Both teams split their previous four playoff meetings. Montreal won last year's Adams Division Semifinals in six games. (P1) Pittsburgh Penguins vs. (P4) New Jersey Devils This was the first playoff meeting between these two teams. (P2) New York Rangers vs. (P3) Washington Capitals This was the third playoff series meeting between these two teams, and were meeting for the second straight year. Both teams split the previous two meetings. Washington won last year's Patrick Division Finals in five games. Clarence Campbell Conference (N1) Chicago Blackhawks vs. (N4) Minnesota North Stars This was the sixth playoff meeting between these two teams and were meeting for the second straight year. Chicago won four of the previous five playoff meetings, including last year's Norris Division Semifinals in seven games. (N2) St. Louis Blues vs. (N3) Detroit Red Wings This was the third playoff meeting between these two teams. Both teams split the previous two meetings. Detroit won their most recent meeting in five games in the 1988 Norris Division Finals. (S1) Los Angeles Kings vs. (S4) Vancouver Canucks This was the second playoff meeting between these two teams. Vancouver won the only prior meeting in five games in the 1982 Smythe Division Finals. (S2) Calgary Flames vs. (S3) Edmonton Oilers This was the fifth playoff meeting between these two rivals with Edmonton winning three of the four previous series. They last met in the 1988 Smythe Division Finals, which Edmonton won in a four-game sweep. These teams did not meet again in the playoffs until 2022. Division Finals Prince of Wales Conference (A1) Boston Bruins vs. (A2) Montreal Canadiens This was the eighth straight and 26th overall playoff meeting between these two teams. Montreal lead the all-time meetings 21–4. Boston won last year's Adams Division Finals in five games. (P1) Pittsburgh Penguins vs. (P3) Washington Capitals This was the first playoff meeting between these two teams. Clarence Campbell Conference (N2) St. Louis Blues vs. (N4) Minnesota North Stars This was the ninth playoff series between these two teams, and the last one before the