Many years ago I had to spend a week in a convalescent home after a major operation. I couldn't go straight home because we were doing up an old house while living in a caravan and sleeping on a mattress on the floor and the hospital doctors reckoned it wouldn't be a good idea!
The home was full of elderly poorly people - everyone was about 50 years older than me - but one lady was friendly and tried to show me how do Cryptic Crossword Puzzles which until then might as well have been written in Chinese - I hadn't a clue.
I later borrowed a book about doing Cryptic crosswords - it didn't help and I forgot all about them.
Then we had lockdown, more time and SiL sent me a heap of puzzle pages from the East Anglian Daily Times (and I've been going to pick them up once we were allowed out) I've been trying to do Cryptic Crosswords again, usually managing to sort out about 3 or 4 answers - that's my limit and even when I can see the answers in the next days pages I still can't work out the hows or whys.
So you can imagine the shock to fill up nearly the whole crossword. Wow I thought - I've got it!
Sadly Not. The next one I tried it was back to normal - just the odd two or three filled in- Oh well back to the Sudoku - at least I can complete those OK.