Not really. I honestly don't care about address puzzles, because of this reason:

There is no incremental progress to speak of. Every time you hash a key, you have the exact same chances of success as before, even if you scanned all keys except the very last two, or if you're just trying for the very first time some random key.

People who don't agree with this are ignorant: they ignore the fact that there was effort already performed. The only thing to track is the scanned regions, but this is not exactly progress. Progress implies that somehow something's better, which is not the case here. It's just economy: you trade time/resources/money with the chance that you might win, or you might lose everything. However, the chances are 4 to 1 not in your favor (every time you pay for hashing a key, you "win" a quarter of your expenses; and that only ever happens after you played millions of dollars). Not a good gamble, lottery is way more profitable if you play it smart (though it's still a losing gamble).

If someone discovers a way that the effort actually improves on anything, then we'd need to rewrite most math books. That's why it's really easy to call BS instantly on some people around here...