okay, if there's no secrets on private keys for bitcoin puzzle wallets,(if choosed randomly)
how it's puzzle wallet then? it's not puzzle, it's just searching for luck for the one random of keys between trillions of keys.
we can't solve , because there;s no secret in it, but we can keep searching and try our luck, is not?
Your question could be answered by reading the very first post in this thread. Do that. Did you do that? I am betting not.
Perhaps the title of the thread should really be "Mysterious Bitcoin Transaction" but instead it is "Bitcoin puzzle transaction".