Bolduc scored five-hole on Ukko-Pekka Luukkonen for Montreal’s third straight shootout goal after Cole Caufield and Alexandre Texier scored on Montreal’s first two attempts. Jack Quinn was unable to deke Jacob Fowler after Tage Thompson scored with Buffalo’s first attempt in the tiebreaker.
Bolduc scored the only goal in a six-round shootout win against the Detroit Red Wings on Saturday.
Lane Hutson and Caufield each had a goal and an assist, Juraj Slafkovsky had two assists, and Fowler made 14 saves in his third straight start for Montreal (3-2-1). Juraj Slafkovsky had two assists.
Olen Zellweger scored twice and Ukko-Pekka Luukkonen made 35 saves for Buffalo (3-3-1), which won 5-3 against the Florida Panthers on Monday. Mattias Samuelsson and Beck Malenstyn each had two assists.
Buffalo scored twice in 61 seconds to overcome a 3-1 deficit early in the third period.
Josh Norris cut it to 3-2 at 4:24 of the third period. His shot from the top of the slot went in off Canadiens defenseman Adam Engstrom’s leg.
Zellweger tied it 3-3 with his second goal of the game at 5:25. His shot sailed through traffic in front and went in off Fowler’s right arm, and the 23-year-old defenseman scored twice for the first time in 170 NHL games.
Luukkonen made a save on Phillip Danault’s tipped shot from the goalmouth with five seconds remaining in regulation to send the game to overtime.
Zellweger gave Buffalo a 1-0 lead at 2:16 of the first period. His wrist shot from the left point went into the net off Engstrom’s glove for his first goal since being traded to the Sabres from the Anaheim Ducks on June 26.
Hutson tied it 1-1 on a 5-on-3 power play at 14:28. His wrist shot from the point sailed over Luukkonen’s left shoulder with Danault providing a screen in front of the net.
Caufield put Montreal up 2-1 at 1:19 of the second period. He one-timed a slap shot past Luukkonen stick side from the left face-off dot on a pass from Slafkovsky, who got his second straight assist.
Josh Anderson made it 3-1 at 19:10 with a wrist shot from the left face-off circle on a setup from Hutson, who dished a backhand pass to his left while driving the right side of the slot.
Luukkonen lunged to his left to make a highlight-reel glove save on Anderson’s shot on a pass from Chris Kreider on a two-man breakaway at 11:53 of the first.
Rasmus Dahlin did not make the trip. The Sabres captain is day-to-day after sustaining an upper-body injury Monday.
Mike Matheson did not play for Montreal; the defenseman is day-to-day with a lower-body injury.
Linesman Ryan Daisy left the game with an apparent left leg injury after Sabres forward Jiri Kulich fell on his leg at 5:28 of the first. Daisy, who had to be helped off the ice, did not return and the two referees and remaining linesman officiated the rest of the game.
