The Bruins played a fully caffeinated first period. They were committed to forcing Game 7. They won puck battles, kept the play in the Chicago zone, and prevented the Blackhawks from unleashing their trademark puck-possession game.

The Bruins’ hard work, however, resulted in only a 1-0 lead. It should have been a multigoal advantage.

“Obviously when you look at the first period, it could have been maybe 2, 3-0,” said coach Claude Julien.

The Bruins scored the opening goal at 7:19 of the first period. It came after some terrific work by the third line of Daniel Paille, Chris Kelly, and Tyler Seguin.

Kelly won an offensive-zone faceoff against Jonathan Toews. Once Kelly pulled the puck back, the Bruins won several battles. Full story for BostonGlobe.com subscribers.

Fluto Shinzawa can be reached at fshinzawa@globe.com. Follow him on Twitter @GlobeFluto.

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