However, Perron made it 4-2 at 17:02 on a one-timer from the left circle on a power play, and Buchnevich scored his own power-play goal with 33 seconds remaining in the second to cut it to 4-3.
"Loved our game 5-on-5, loved it," Avalanche coach Jared Bednar said. "Right from the drop of the puck, we had a great first period, great second period. We get into penalty trouble, they score a couple of goals on the power play, things get tight, things get hairy."
Kadri completed the hat trick at 9:38 of the third period to make it 5-3.
"Yeah, can't give that goal up," Berube said. "It shouldn't have happened and that deflated us a bit. Made a push with the goalie out. While we had a power play, had a couple good looks on that power play to maybe make it a one-goal game, but again, overall, 5-on-5, they were way better than us tonight."
Mikko Rantanen shot into an empty net for his first goal of the playoffs with two seconds remaining for the 6-3 final.
"We came out right away in the third period and started playing the same way," Bednar said. "Great team game from our guys."
NOTES:Teams that take a 3-1 lead are 296-31 (.905) winning a best-of-7 NHL playoff series, including 0-1 in the 2022 first round. The New York Rangers defeated the Pittsburgh Penguins after trailing 3-1. ... Colorado is 4-0 on the road this postseason. ... Toews has four goals in the playoffs, two behind Rob Blake (six goals in 2001 and 2002) for the most by an Avalanche/Quebec Nordiques defenseman in a single postseason. Sandis Ozolinsh is second with five (1996 and 2000).