With the Rangers win over Montreal both the Rangers and Lightning have clinched a playoff spot. The final playoff spot will come down to Toronto, Montreal and the Islanders.
Montreal will get in if they beat Toronto Saturday. They will also get in if they get an OT loss and the Islanders don’t win both of their final games.
Toronto gets in if they beat Montreal in regulation and the Islanders get no more than 2 points in their final 2 games.
If the Islanders win both of their games they get in so long as the Canadiens don’t win on Saturday. If the Islanders get 3 points in their final 2 games they will get in only if Toronto wins in regulation.