I have done this and it is addictive. Mum walked past when I first did it, and should have been a lexicographer. Together we got to level 50, even though some were wild guesses. All those crosswords paid off! I can get to level 45 without her there. So far....... Have given up adding the rice! Lots and lots.
How cool! I am not very good at this but I will show my hubby he will love it.
Very interesting. I love things like this. Can't wait to show it to my son.Susan