I'll link one I made that is open source(I guess I'll upload it now)

Also, since my foot is out right now, I got bored and made a simple high low game under HIGHsnake under the same github account. one second. going to leave this open as I make and upload a masterkey program for the puzzles.

https://github.com/mrwhalebones/MasterKeyProgram

I'm currently debugging what I just built today after seeing the posts. This should allow easier generation of attempts at the puzzles using generated hex ranges, converted to WIFs. I am working on the output generation currently but have a few inferior working models. I've been going through multiple builds an hour and am only really updating when it seems key.

Also, I am including an automated search function that compares converted hex to wif and converted wif to address, so there isn't a need for gigs worth of private keys and it stops people from easily stealing other people's well earned (assumed) funds.

Not gonna lie, if you wanted to donate there is an address in the readme, but don't feel it necessary. If you feel like you want to reach out to have a program built specifically for you, I have a business line at +1(406)344-4432. I honestly can't wait until my node is fully synced....... lol, papa needs to pay his rent. Once I have a working miner up, I'll post a link for the SEGWIT miner written in pure python and open-script.