How a "puzzle" is related to "Bitcoin must upgrade or fall victim to quantum computing in 5 years"? You just spamming now. Open a new topic somewhere else with your "puzzle".
He did, did you read it?
The point of a "puzzle" is to be solved. If it can't be solved, maybe, uhm, it proves a point, for example, that all this quantum mania BIPs are BS and that Bitcoin's safe as it is right now, today, and will be even if ECDSA gets broken.
BTW I'm the guy who broke the first 7 of those "puzzles"
(it took several dozens of quadrillion hashes to do it). I'm eagerly waiting for the quantum computers to hack into all the wallets that I transferred the funds into, since apparently in a short time everyone and their dog will be able to. Not.