Are you sure about that, Alberto? (Cough BSGS cough) sorry i guess i got the flu 😃
Yes I'm pretty sure. Even with kangaroo or bsgs on GPU the puzzle 66 is more likely to be solved first.
16jY7qLJXAVFd7AJXJ5N8xT9DEs24NDaXV F7051F24C01D5BB2
16jY7qLJnxb7CHZyqBP8qca9d51gAjyXQN F7051F27B09112D4
Got above address 2 times in my lots of search since lots of years but never get actual address.. feeling too much unlucky

I should have taken these green letters seriously.
That is unrelated a lot of people found partial address in other ranges of the puzzle 64. Address generation doesn't work in that way, it is a double hash rmd160(sha256(publickey)) and the checksum is double hash sha256 of the previous value plus the 00 prefix.