CHICAGO — As was the case in half the games in last season’s Stanley Cup  finals, the Bruins and Blackhawks couldn’t settle Sunday’s rematch in regulation. The Blackhawks beat the Bruins, who were without Adam McQuaid for most of the game, with a 3-2 shootout victory that was sealed by Patrick Kane.
Brad Marchand , who had no points in the finals last season, scored two goals in less than 70 seconds for the B’s, tying the game late in the first and giving the B’s the lead 50 seconds into the second period. He also scored the Bruins’ only shootout goal.
The Blackhawks got on the board first thanks to Marian Hossa, who picked up his 20th goal of the season on a 2-on-1 in which Kevan Miller was the only Bruin back after a pinch from Zdeno Chara . Patrick Sharp beat Miller to the puck and fed Hossa on the doorstep, with Hossa beating Tuukka Rask  to make it 1-0.
The Bruins looked to be headed into the first intermission trailing until Marchand beat Corey Crawford stick-side with 18.9 seconds remaining in the first. Marchand picked up his first career goal against the Blackhawks when he took a nice pass from Patrice Bergeron  and fired a wrist shot from the right circle that beat Crawford.
The pesky forward picked up his 14th goal of the season early in the second, taking a feed from Reilly Smith in the neutral zone and beating Crawford five-hole to give the Bruins a 2-1 lead. That lead was erased on a soft goal against Rask, who didn’t seal off the post on a puck Brandon Bollig had thrown on net from the right circle.
The B’s lost McQuaid to an undisclosed injury in the second period. McQuaid did not play the last 11:26 of the second and was announced as done for the game by the team prior to start of the third period.
The Bruins will head back to Boston to face the Kings in a matinee Monday at TD Garden.
WHAT WENT WRONG FOR THE BRUINS
– Saturday marked the fifth time this season the Bruins have had to play most of a game with only five defensemen. The loss dropped them to 3-1-1 in such games this season.
– Rask is one of the more technically sound goaltenders in the league, so not sealing off the post on Bollig’s goal wasn’t a great look. Rask also had a flub late in the second period when he poked at and missed a puck off the stick of Jonathan Toews in the final seconds of the second period.
– Speaking of Toews, the Bruins couldn’t capitalize on an opportunity in the second period when Toews was given a 10-minute misconduct for throwing his broken stick over the glass. It wasn’t a power-play situation for the B’s, but 10 minutes with Toews in the box makes the Blackhawks a much easier team to play against in all three zones, but the B’s couldn’t manage to add to their lead.
– Ten of the Bruins’ last 11 penalties have been on defensemen with the exception of a too-many-men bench minor Thursday in Dallas. The latest came in the second period on Matt Bartkowski, which the B’s were able to kill off successfully. Boston has allowed one power-play goal (killing off seven of eight shorthanded situations) in that span.
– Gregory Campbell  fanned on two golden opportunities late in the game, including on a 2-on-1 with Bartkowski in overtime following the expiration of Bartkowski’s penalty.
– It was just a bad scene on Chicago’s first goal, as Chara pinched for a scoring opportunity in the slot that went awry, and when the puck went the other way Krejci was flat-footed at the point. Sharp beat Miller to the puck for a 2-on-1 and fed Hossa.
WHAT WENT RIGHT FOR THE BRUINS
– Marchand has crawled out of the hole he found himself in earlier in the season, as he has followed a lackluster showing of five goals in 34 games with nine goals in his last 14. With 14 goals on the season, he is just one behind linemate Reilly Smith for the team lead.
No. 63 was buzzing for much of the day, generating chances as the Bruins were killing off a second-period Bartkowski holding penalty and drawing a slashing penalty on Brent Seabrook early in the third.
– Interestingly enough, the Bruins were able to beat Crawford by exploiting areas other than the glove hand that was exposed so often in the opening games of the Cup finals. Marchand’s first goal was stick-side, while his second was five-hole.
– Thank Milan Lucic  for saving Torey Krug a potential beating in the first period. After Bollig threw a big hit on Miller, Krug went after Bollig. Krug has fought once in the NHL , while Bollig, at 6-foot-2 and 223 pounds, has six inches and 53 pounds on the undersized Boston defenseman. Luckily for Krug, Lucic came in to separate the two.