https://github.com/albertobsd/keyhunti did think albertobsd developed keyhunt - sorry.
in my tests keyhunt-cuda is always showing higher performance and rate so i do not understand why some people still use bitcrack or bitcrack2
what is the best tool in term of performance rate in your opinion to use for trying to crack puzzle 66 where no pubkey is known?
Some may use bitcrack because of the --continue option, however, a simple python script could be used instead, using keyhunt-cuda. keyhunt-cuda allows for multiple GPUs to be used together, and the speed is faster so I do not know why others use bitcrack, unless for the stride function.
I think keyhunt-cuda is the best option for #66...use python to keep track of your ranges ran or to continue. Someone just has to get lucky and land in the right zone to find the key.