Daniel Paille led the third line and the Bruins to a key win.
Paille scored the game-winning goal in overtime to help the Bruins beat the Blackhawks 2-1 and tie the Stanley Cup Finals at 1.
Chris Kelly also scored in the game and Tyler Seguin was credited with the assist on Paille's winner.
"Seguin made a good play passing it over instead of shooting," Paille said. "We're happy that it went in. Just relief that the game was over and that we were able to come back."
The teams resume play in Boston on Monday night, and this game was crucial for the Bruins in the series.
"I think that's key for us to keep that confidence us going into the next game," Paille said.