Brent Seabrook's overtime goal lifted the Chicago Blackhawks to a wild 6-5 win over the Boston Bruins on Wednesday to level the Stanley Cup Final at two games each.

After a 2-0 defensive showcase in Game Three, the two teams turned on the offensive style in Game Four combining for 11 goals, just one shy of the previous three contests combined.

Despite the offensive explosion and end-to-end action the two teams still needed overtime for the third time in four games to reach a decision, Seabrook unleashing a rocket from just inside the blueline that sailed past netminder Tuukka Rask.

Chicago coach Joel Quenneville had shuffled his lines for the pivotal contest in an effort to generate some scoring, reuniting his top two forwards Jonathan Toews and Patrick Kane with Bryan Bickell and the unit produced instant magic.

Toews, who tied with Kane for the Chicago goal scoring lead during the regular season but had just one playoff goal, broke out of his post-season slump in the second period to put Chicago ahead 2-1.

Kane, who had also not scored in the Finals, followed Toews' lead when he jumped on a big rebound and lifted a backhand over a diving Rask.

The trio were also on the ice for the game winner, Kane and Bickell picking up assists on Seabrook's goal while Toews was parked on the goalmouth ready to scoop up any rebounds.

Michal Handzus, Marcus Kruger and Patrick Sharp also scored for the Blackhawks, while Patrice Bergeron, with a pair, and Rich Peverley, Milan Lucic and Johnny Boychuk accounted for the Bruins scoring.

The best-of-seven series now shifts to Chicago for Game Five on Saturday.

(Reporting by Steve Keating in Toronto. Editing by Patrick Johnston)