"Thinking about it i am still pumped this morning," Blackhawks fan Caitlin Marco said.
Chicago will play the defending Stanley Cup Champion Los Angeles Kings in the next round starting Saturday.
But it would not be possible had the Hawks not regrouped after a winning goal was disallowed on a questionable call 1:47 from the end of the third period.
"It was thrilling," Blackhawks fan Ken Sullivan said.
ESPN Senior Writer Lester Munson says the community is in for an emotional ride.
"It is the kind of thing we in Chicago see once in a decade and here we have it coming four years after the last Stanley Cup," Munson said. "It is just a marvel."
"I think we have a great team, chemistry," fan Maili Melchor said. "They just work so well together. We want to win and they want to strive. They have it in them to do this."