Has an NBA game ever ended 66-56?

Exactly once. On December 1, 1946, Chicago Stags beat Boston Celtics 66-56, and no NBA game before or since has ended that way. When it happened it was a scorigami, the first 66-56 in league history.

Where 66-56 sits among nearby NBA scores. Deeper blue means a score has happened more often; the outlined cell is the new one.

That makes 66-56 the 2546th most common final score out of 3,190 that have ever occurred in NBA. One point away, 67-56 has happened never and 66-57 has happened 2 times.

Every 66-56 in NBA history

Date	Result	Season
1946-12-01	Chicago Stags over Boston Celtics	1946

Open the NBA grid at 66-56