CHICAGO -- Andrew Shaw skated off to the side and pumped his arms furiously.
One shot from the right point plus two deflections was just enough to beat Tuukka Rask in the fifth-longest Stanley Cup finals game in history.
Shaw skated in front of the goal in the third overtime and redirected Dave Bolland's shot into the net for the winning score in the Chicago Blackhawks' 4-3 victory over the Boston Bruins in a riveting Game 1 on Wednesday night.
Michal Rozsival started the winning sequence with a shot from the right point into traffic. Bolland tipped it before Shaw got it by Rask for his fifth goal of the playoffs.
And just like that, the longest finals game in five years was over.
"We knew it wasn't going to be pretty," Shaw said. "It was a great shot, great shift. It was unbelievable. All the guys deserved this. It was a great battle for us."
Milan Lucic had two goals and an assist for the Bruins, who had won five straight and nine of 10. Patrice Bergeron scored a power-play goal, and David Krejci finished with two assists.
Rask made an astounding 59 saves in the longest finals game since Pittsburgh beat Detroit 4-3 when Petr Sykora scored at 9:57 of the third overtime on June 2, 2008.
Game 2 is Saturday night at the United Center.
"Get some rest, because we basically just played two games in one night here," Blackhawks coach Joel Quenneville said. "But based on how it went tonight, we'll have to be ready."
The Blackhawks won for the eighth time in nine games and improved to 10-1 at home in the playoffs. Bolland and Johnny Oduya scored in the third period for Chicago, which never would have made it to the third overtime if not for an impressive performance by goaltender Corey Crawford. He gave the Blackhawks a chance by standing his ground when the Bruins had repeated opportunities in the extra sessions. Brandon Saad had his first goal of the playoffs for Chicago.
Shawn Thornton and Daniel Paille skated in for a 2-on-1 in the first OT, and Crawford turned away Thornton on the doorstep. He denied Rich Peverley and Tyler Seguin in rapid succession and helped Chicago kill off two power plays.
Crawford had 22 of his 51 saves in the first two overtimes, and Rask was forced to make 18 stops.
"Not disappointed in our effort," Bruins coach Claude Julien said. "There's certain things you're going to want to fix for next game. But as far as the game is concerned, it was a hard-fought game."