The Bruins lead the best-of-seven series 3-2, with a chance to eliminate the Canadiens in Montreal on Monday night. Game 7 would be Wednesday night back in Boston.
Carl Soderberg and Loui Eriksson also scored, and Tuukka Rask stopped 29 shots for Boston. He extended his shutout streak to 122 minutes, 6 seconds before Brendan Gallagher scored to make it 3-1 on a power play with 5:21 left in the second period.
Carey Price made 26 saves for Montreal. P.K. Subban had a late goal power-play goal.
The Bruins had not scored a power-play goal in the playoffs against the Canadiens in 39 tries over 14 playoff games dating to 2009.Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.