Matthew Poitras and Trent Frederic scored 56 seconds apart in the third period, and the Bruins beat the Blackhawks 3-0 on Tuesday night to match the best start in franchise history.

Pavel Zacha also scored for Boston, which began the trip with wins at San Jose, Los Angeles and Anaheim. Jeremy Swayman made 23 saves in his 10th career shutout.

The Bruins moved to 6-0 in the franchise's centennial season. Boston also won its first six games of the 1937-38 season.

Petr Mrazek made 40 stops for Chicago in its third consecutive loss. The Blackhawks also lost to the Bruins on Oct. 11, falling 3-1 in Boston.

Chicago appeared to jump in front on Connor Bedard's power-play goal with 6:45 left in the first period. Boston defenseman Charlie Coyle passed the puck right to Bedard, who beat Swayman with a rocket from the slot.

But it was waved off after an offside challenge by Montgomery. The United Center crowd of 19,370 booed when the ruling was announced.

The Blackhawks placed forward Taylor Hall (left shoulder) on injured reserve. The move was made retroactive to Saturday. Hall has no goals and two assists in five games after he was acquired in a June trade with Boston.

The Blackhawks are at the Vegas Golden Knights on Friday night.