It would have been so much bitcoin for me i would not be sitting here.
All the private keys for each range were created by generating a 256 bit secure random number and then masking the result down to the desired key length.
And how this process looks, you can also generate a random and add "maskin". Something he wrote 000 0002...
A few words about the puzzle. There is no pattern. It is just consecutive keys from a deterministic wallet (masked with leading 000...0001 to set difficulty). It is simply a crude measuring instrument, of the cracking strength of the community.
If we can not think of anything other than scans of addresses, then it's like diving into the lake and farting there to stun and catch fish. To find 56 by scanning you need 100 1080ti cards and it will take a month or more. For the next step you need already 200 1080ti with the same time either increase the search time.