So out of curiousity, did anyone ever hit a non-related funded wallet during puzzle solving?
You would have to check the balance of each private key. It would slow down the brute forcing to a crawl. I highly doubt there are any funded wallets in the keyspace, except for some dust in some test wallets that people made to test their bots.
What odds would there be if during solving we could check for a known address?
For example, i have a locked multibit wallet since 2016-ish, could all combinations be checked against this address should i decide to solve a puzzle?