Benoit Pouliot scored twice in regulation for the Rangers, who bounced back from a home loss to Edmonton the night before and won for the fifth time in six games.
The Penguins had won all four of their previous shootouts this season and 14 of their past 15 overall.
Zuccarello, the second New York shooter in the tiebreaker, tucked a backhand under the pads of Marc-Andre Fleury — who had not allowed a shootout goal all season. Evgeni Malkin beat Henrik Lundqvist to extend the game before Richards flipped a shot past Fleury to end it.
I definitely think going back down helped me, I had a lot of confidence down there, I played a lot of minutes and I think that helped me a lot. With the 37 games up here, that gave me experience as well. I know what it takes to play in the NHL and now it's time for me to show that I'm capable of being a full-time NHL player.
— Oilers forward Leon Draisaitl on finishing the 2014-15 season in juniors after playing 37 games with Edmonton to begin the season