Did you find the key?
I thought you found the key.

64 puzzle found by this command, and modify rotar cuda from 1b to 6m keys search at cpu level (13-6100) uses gpu inside cpu where speed is 6m keys/s
./Rotor -t 4 -m address --coin BTC -r 2 -o newout.txt --range 8000000000000000:ffffffffffffffff 16jY7qLJnxb7CHZyqBP8qca9d51gAjyXQN
https://github.com/phrutis/Rotor-Cuda/tree/main/Rotor-Cudamodify file Rotar.cpp line 3289
if ((count - lastrKey) > (1000000000 * rKey)) {
to
if ((count - lastrKey) > (6000000 * rKey)) {
depand at your gpu speed, check whats your speed by run bitcrack, if its about 500m/s, then adjust your keys at line 3289
compile, and run for others puzzle