@detechs i understand the feeling with "close". For me the problem is time...
This new string that i follow is the best aproach ever. I reduced the dificulty with 50% and is decreasing the difficulty with new puzzles discovered.
This weekend i do not have time at all, but next week i will built something in C++ for GPU to apply the new method.
Be prepare to see vanish all puzzles in same time
I have found the same thing you did except I'm not using gpu at all, only a i5 6600k, my GPU is a gtx 970 haha. If I find the key were looking for I will also be able to solve every puzzle. Instead of using my GPU, I reduced the search range by using calibrations and training. I literally only need the master key now. When I get home today I'll try get all the puzzle 71 lookalike addresses using my method as a another calibration. If you see puzzle 71 or 77 taken you'll know it's me, I'm only taking one puzzle not all. The rest will go back to satoshis wallet
Good luck to all
