Lundqvist, who notched the fourth post-season shutout of his career, turned aside 14 shots in the final period for the Rangers, who bounced back from a 3-2 overtime loss Saturday to grab a 2-games-to-1 lead in the Eastern Conference quarterfinal series.
The Swedish netminder made two key saves early in the third on Ottawa's Colin Greening to preserve New York's lead.
Craig Anderson stopped 22 shots for the Senators, who will host Game 4 Wednesday.
Couple calls 9-1-1 over missing hash browns; assault McDonanld's employees
Wisconsin business offering 'therapeutic cuddling' forced to close