Debussey will be unmoved by any supposed owning. He was a bit too quick with a guess and a bit too long in the aftermath when he refused to concede he didn't solve the puzzle. I suppose the Aussies would say he was too smart by half.
Debussey has never heard of the "cryptic crossword" puzzles, and therefore thought that this was a regular chiper. Debussey did as you said not solve the puzzle the way it was supposed to be solved, thus, you are correct. Debussey did find a new dimension to the puzzle, the algebraic connection and the subsequent system was a fast and funny challenge.
Anyway, good initiative safety fat, here is one for you:
Find a 6 digit number N that contains the exact same digits as 2N, 3N, 4N, 5N and 6N, just in a different order. (do not cheat by searching the web).
This one is a little brain teazer, yet, you can solve it in at least 2 ways.Another one:
21 - 26 - 7 11 - 22 - 12 - 11 - 15 - 22 8 - 7 - 18 - 14 - 16 15 - 18 - 16 - 22 8 - 19 - 18 - 7 Hint: Crack the easy system, and you'll find the hidden message. It is an encoded opinion from Debussey - DongUzi. This one = a lot easier than the first one.