Has an NHL game ever ended 12-9?

Exactly once. On December 11, 1985, Edmonton Oilers beat Chicago Black Hawks 12-9, and no NHL game before or since has ended that way. When it happened it was a scorigami, the first 12-9 in league history.

Where 12-9 sits among nearby NHL scores. Deeper blue means a score has happened more often; the outlined cell is the new one.

That makes 12-9 the 82nd most common final score out of 95 that have ever occurred in NHL. One point away, 13-9 has happened never and 12-10 has happened never.

Every 12-9 in NHL history

Date	Result	Season
1985-12-11	Edmonton Oilers over Chicago Black Hawks	1985

Open the NHL grid at 12-9