With 4 goals & 3 assists, Wayne Gretzky becomes the 1st player in NHL history with 7 points in a playoff game. He did it again in 1985 & 1987 before Patrik Sundstrom & Mario Lemieux both broke the record with 8 points in 1988 & 1989, respectively.

Interpreted as:
Who was the first NHL player with 7 or more points in a playoff game?