Quoting: rangersandislesfan
Also, I believe this is the first game to go to 4OT since 2008 ... correct me if I'm wrong.
Yes. The other 13 games are: (stolen from NHL.com)
1. March 24, 1936 - Detroit 1, Montreal Maroons 0, semifinal, 116 minutes, 30 seconds, Mud Bruneteau.
2. April 3, 1933 - Toronto 1, Boston 0, semifinal, 104:46, Ken Doraty.
3. May 4, 2000 - Philadelphia 2, Pittsburgh 1, conference semifinal, 92:01, Keith Primeau.
4. April 24, 2003 - Anaheim 4, Dallas 3, conference semifinal, 80:48, Petr Sykora.
5. April 24, 1996 - Pittsburgh 3, Washington 2, conference quarterfinal, 79:15, Petr Nedved.
6. April 11, 2007 - Vancouver 5, Dallas 4, conference quarterfinal, 78:06, Henrik Sedin.
7. March 23, 1943 - Toronto 3, Detroit 2, semifinal, 70:18, Jack McLean.
8. May 4, 2008 - Dallas 2, San Jose 1, conference semifinal, 69:03, Brenden Morrow.
9. March 28, 1930 - Montreal Canadiens 2, N.Y. Rangers 1, semifinal, 68:52, Gus Rivers.
10. April 18, 1987 - N.Y. Islanders 3, Washington 2, division semifinal, 68:47, Pat LaFontaine.
11. April 27, 1994 - Buffalo 1, New Jersey 0, conference quarterfinal, 65:43, Dave Hannan.
12. March 27, 1951 - Montreal Canadiens 3, Detroit 2, semifinal, 61:09, Maurice Richard.
13. March 27, 1938 - N.Y. Americans 3, N.Y. Rangers 2, quarterfinal, 60:40, Lorne Carr.