That's what I think, the kangaroo algorithm works, but you only get more efficiency with more computing power or a better implementation of secp256k1, there is no way to speed this up otherwise without making it less efficient.
So now that we know that gmaxwell created this puzzle. How should we continue? I think he should stop it.
What are you talk about ? Why stoped ? You realy think what people try to solve puzzles only with kangaroo and other old software ? Forum men er develop super lightening database because of puzzle, othe peoples do something another, and solving puzzles not stop. So, I think you need stop talk about sach shit.