The Rangers are moving on to the next round of the playoffs.
Carl Hagelin's goal at 10:52 of overtime gave the Rangers a 2-1 win over the Penguins.
The Rangers win the opening round series 4 games to 1.
In the next round, they will face either the Islanders or Capitals. Washington leads that series 3 games to 2.
Game 6 is Saturday at 3 p.m. on Long Island.
If the Isles don't come back to win the series, Saturday's game will be the last one ever at Nassau Coliseum.