So in the three hours between you reading the puzzle in the parent comment, you stopped what you were doing, managed to get some other "random" person to stop what they were doing and spend half an hour of their time on a maths puzzle that at that point prior experience suggested could take a day? All within three hours?
That's not to say that you didn't, or you're recalling from a previous time that happens to be this exact puzzle (despite there being scant prior references to this puzzle, and precisely the reason for using it). But you can see how some might see that as not entirely credible.
Best guess: this random person is someone that really likes puzzles, is presumably good at them and is very, very far from being representative to the extent you would require to be in support of your argument.
That's not to say that you didn't, or you're recalling from a previous time that happens to be this exact puzzle (despite there being scant prior references to this puzzle, and precisely the reason for using it). But you can see how some might see that as not entirely credible.
Best guess: this random person is someone that really likes puzzles, is presumably good at them and is very, very far from being representative to the extent you would require to be in support of your argument.
Read: just a heavy flex about puzzle solving.