The Bruins went ahead to stay, 3-2, at 12:08 of the second period when Boychuk, who had one goal in the regular season, shot a 40-footer inside the near post for his third playoff goal.
The shot got through several players before it sailed past Lundqvist.
“It was definitely a screen,” Boychuk said. “All I had to do was hit the net because there were a couple of guys in front of him.”
Boston never trailed as rookie Torey Krug scored the first goal before Rangers captain Ryan Callahan tied it. Gregory Campbell made it 2-1, and New York pulled even again on Rick Nash’s goal, his first of the playoffs after he led the Rangers with 21 in the regular season.
Now the Rangers find themselves in a familiar position, down 0-2.
They lost the first two games of their first-round series in Washington, won the next two in New York before losing Game 5 on the road.
But Lundqvist posted consecutive shutouts in Games 6 and 7 against the Capitals when the Rangers faced elimination.
“We’ve done it before,” Lundqvist said, “but I think we are playing a better team now so it’s going to be tough to do it.”
There’s also the matter of his left shoulder that was hit by Daniel Paille’s shot in the third period. Lundqvist rubbed it after the game and said, “We’ll take a look at it.”
Tuukka Rask was solid again for Boston, stopping 35 shots.
“You have to give Tuukka a lot of credit,” Julien said. “Turnovers and giveaways in the second period are not something we do too much, and it could have been disastrous.”
After the second period, “I told guys to play to win,” he said. “I don’t like our team when we are back on our heels and protecting a one-goal lead that way.”