Just 26 seconds later, Oshie and Vrana combined for some excellent wall work behind the New York net, setting up Backstrom's second goal of the game, a laser from virtually the same spot from which he scored his first. That goal quickly restored Washington's two-goal lead at 3:01, but it wouldn't hold.
New York's Vladislav Namestnikov made it 5-4 on a Rangers power play exactly three minutes after Backstrom's goal, deflecting Neal Pionk's shot past Copley with his skate blade.
With Lundqvist pulled for an extra attacker, New York got the game tied up. Skjei's shot glanced off Caps forward Carl Hagelin and past Copley, tying the game at 5-5 with just 30.3 seconds left.
For the Rangers, who traded away popular and productive winger Mats Zuccarello less then 24 hours earlier and figure to lose more key players via the trade route in the next 24 hours, it was a big goal.
"Listen, it's been an emotional 48-72 hours for everybody," says Rangers coach David Quinn. "That felt really good, that goal."
In overtime, the Caps chased the puck for the first minute and then some, but once they got a handle on it, they were able to create some chances. On the game-winner, Ovechkin pump-faked before feeding Kuznetsov off to the right side of the cage. Kuznetsov tried to go right back to Ovechkin, but the puck got caught up - but not tied up - in Lundqvist's body. Both Caps forwards whacked at it simultaneously as the New York netmidner reached for it in vain, and Kuznetsov was deemed to have ushered it over the goal line for that second critical standings point.