Most points ever received from a single quote?

[FriedrichEngels]

The most points I remember in recent memory was around 450 I was wondering how high the scale goes.

[montyb]

I think 450 is the most you can get for a "difficult" puzzle. And, correct me if I am mistaken folks, I think 350 is the limit for "average" and 150 for "easy". The most I have ever gotten was about 445, and that was without seeing the plane.

[ddph]

The maximum points are 150 for easy, 300 (not 350) for average. and 450 for difficult. My personal highest score for a puzzle was 447.