This assignment is not ‘fit for purpose’ IMO, if teachers cannot see a clear pathway through it then how could a pupil?
It is ridiculous for the Higher to ‘feel easier’ or be quicker to solve.
I’m going to set my Highers the N5 challenge when we have their coursework out of the way to get their feedback on it, I’m suspicious they will find ambiguity in the design even though they are totally comfortable with 1D and 2D arrays.