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Chicago • Duncan Keith had a goal and three assists, and the Chicago Blackhawks used a four-goal third period to finish off the St. Louis Blues with a 5-1 victory in Game 6 of their first-round playoff series on Sunday.

Chicago won four in a row after a slow start in St. Louis. The defending Stanley Cup champions will play the winner of the Minnesota-Colorado series in the Western Conference semifinals.

Jonathan Toews, Patrick Sharp, Andrew Shaw and Keith scored in the third period as the Blackhawks improved to 14-2 in home playoff games over the last two seasons. Corey Crawford made 35 saves,.

Rangers 4, Flyers 2 • In New York, Brad Richards and Dominic Moore scored second-period goals, and Henrik Lundqvist made 24 saves as the Rangers pushed the Flyers to the brink of elimination.

Defenseman Marc Staal gave the Rangers the lead in the first period and they extended it in the second in taking a 3-2 edge in the first-round series.

Ducks 5, Stars 4 (OT) • In Dallas, Nick Bonino scored 2:47 into overtime, after getting one of Anaheim's two goals late in regulation, and the Ducks beat the Dallas Stars in Game 6 on Sunday night to clinch the first-round series. The Ducks scored twice in the final 2:10 of regulation to force overtime. —

NHL playoffs

O Sunday

Chicago 5, St. Louis 1

Blackhawks win series 4-2

N.Y. Rangers 4, Phila. 2

Rangers lead series 3-2

Anaheim, 5, Dallas 4 (OT)

Ducks win series 4-2

Monday

Pittsburgh at Columbus,5 p.m., NBCSN

Penguins lead series 3-1

Colorado at Minnesota, 7 p.m., CNBC

Avalanche lead series 3-2

• San Jose at Los Angeles, 8 p.m., NBCSN

Sharks lead series 3-2