Answered April 24th, 2019

Kevin Durant set a new postseason career-high with 45 points as the Warriors dropped Game 5, just one point shy of Wilt Chamberlain's franchise record for most points in a playoff loss.

Who was the last Warriors player with 45 points in a playoff game he lost?
Interpreted as:
Who was the last Warriors player with 45 or more points in a playoff game he lost?