this took me back and I was amazed at how good I was at this having not thought about this since I was about 10 years old.
(, Fri 12 Nov 2021, 14:16, Reply)
that there's a percentage of 40-something men who played it so much that it's just permanently there. The map-making probably reinforced it.
See also:
www.thedailymash.co.uk/news/arts-entertainment/man-still-knows-where-all-the-rooms-are-in-jet-set-willy-20180418147489
(, Fri 12 Nov 2021, 14:45, Reply)