Carey Price made 26 saves for the shutout and the Montreal Canadiens beat the Boston Bruins 4-0 on Monday night to force Game 7.
Thomas Vanek scored twice and Lars Eller and Max Pacioretty also scored for Montreal, which overwhelmed the Bruins to tie the series at 3-3.
Game 7 is Wednesday night in Boston.
Eller opened the scoring just 2:11 into the game after the Bruins misplayed the puck and Eller was alone in front of the net to beat a sprawled out Tuukka Rask.
Pacioretty made it 2-0 after scoring on a long stretch pass through Rask's legs in the second period.
Before the period was over Vanek scored on the power play. Vanek added his second of the game into an empty net late in the third.
Rask finished with 24 saves for the Bruins.