CHICAGO — The longer the officials studied the video, the more concerned Ducks Coach Bruce Boudreau grew.
The officials decided the video replay revealed that a second-period goal by Chicago's Brandon Saad counted, and Boudreau knew such calls can sometimes deflate a team.
Instead, the Ducks took the call and used it as a call to respond.
They did so with a late surge to defeat the NHL's hottest team in a 3-2 shootout Tuesday night in front of a soldout United Center crowd that was welcoming back the Blackhawks from an extended trip.
"It seemed like it was a rallying cry," Boudreau said. "The next shift I think we hemmed them in for 30 seconds in their zone. We're not saying defeat. We're coming after them."
In more than one way.
The Ducks have put together consecutive shootout wins, following up on a victory at St. Louis on Saturday to become one of the NHL's more surprising teams. They are 3-1-0 in their six-game trip and 6-1-0 overall in the last seven games.
"It seems to me that we're not the be-all end-all, but we can compete with these teams on most nights," Boudreau said. "That's a testament to the players and how hard they're working."
The Blackhawks remain undefeated in regulation games.
The Ducks worked back from a 2-1 deficit for the victory off two penalty kills in overtime and goaltender Viktor Fasth's two saves in the shootout.
Nick Bonino and Corey Perry scored shootout goals against goaltender Corey Crawford, and only Jonathan Toews could slip a goal past Fasth.
The goaltender, who started in place of injured Jonas Hiller, is undefeated in six starts.
Andrew Cogliano, sans helmet, knocked in a rebound with only 2 minutes 40 seconds to play in regulation to tie the score, 2-2.
"You always try to work hard to get to play," said Fasth, who recorded 28 saves. "You try to work hard to get the wins. I don't take anything for granted."
The Ducks fell behind, 2-1, after a second-period goal by forward Saad after a lengthy video review. Officials ruled it a goal because the shot crossed the goal line before the net came off its pegs.
"I don't think anybody on the ice, even them included, thought there was even a chance it was a goal," Bobby Ryan said. "It felt like it was so blatantly obvious it didn't go in."
The Ducks had led, 1-0, after a second-period goal was credited to center Ryan Getzlaf, whose intended pass to Perry was indirectly guided into the net by Blackhawks defenseman Brent Seabrook.
The Blackhawks tied the score only seconds into a power play on a goal by Nick Leddy.
"When you're only one shot down," Boudreau said, "anything can happen."