BOSTON - Brent Seabrook's goal 9:51 into overtime lifted the Chicago Blackhawks to a wild 6-5 victory over the Boston Bruins on Wednesday night and tied the Stanley Cup finals through four games.
Seabrook fired a 45-foot shot past Bruins goalie Tuukka Rask to end Game 4 and send the series back to Chicago tied 2-2.
Seabrook also scored the overtime goal in Game 7 of the Western Conference semifinals to eliminate the Detroit Red Wings.
Chicago defenseman Johnny Oduya (27) and Boston left wing Milan Lucic (17) fight for the loose puck in front of Blackhawks goalie Corey Crawford (50).
Only 12 total goals were scored in the first three games before the teams combined for 11.
Game 5 of the series is Saturday night.
It was the third overtime game of the series. The Blackhawks won the opener 4-3 in three overtimes, and the Bruins won 2-1 in the first overtime period in Game 2.
Boston grabbed the series lead Monday night 2-0 behind Rask's third shutout of the postseason.
Seabrook's shot from the right went to the far side of Rask, who appeared to be screened.
Trailing 4-3 after the second period, the Bruins tied it on Patrice Bergeron's second goal of the game at 2:05 of the third period.
Patrick Sharp gave Chicago a 5-4 lead at 11:19 of the third period with the Blackhawks' first power-play goal in 30 chances, but Boston came right back to tie it 55 seconds later on Johnny Boychuk's hard 40-foot shot.
All five Bruins goals were to the glove side of goalie Corey Crawford.
Jonathan Toews broke his scoring slump in Chicago's three-goal onslaught in the second period against Rask.
In an unusually wide-open game, the teams combined for five goals in the second period after the first ended in a 1-1 tie on goals by Chicago's Michal Handzus and Boston's Rich Peverley.
Patrick Kane and Marcus Kruger also scored for Chicago in the second. Milan Lucic and Bergeron countered for Boston.
Rask posted his third shutout of the postseason in Game 3 and began Game 4 with a shutout streak of 122 minutes, 26 seconds.
That ended at 129:14 when Handzus scored a short-handed goal at 6:48 of the first period. Then Peverley, who had been struggling offensively, scored his second playoff goal during a rare power-play shift for him at 14:43.
Toews and Kane led the Blackhawks with 23 goals each this season, and neither had scored a goal in the Cup finals. Toews had gone 10 straight games without one, but now has two goals in 21 playoff games.
His fortunes changed when he gave Chicago a 2-1 lead at 6:33 of the second. Michal Rozsival fired a shot from the right point that Toews tipped in.