Re: Bitcoin puzzle transaction ~32 BTC prize to who solves it
That's correct. The more GPUs you have, the higher the chances of collisions due to the Birthday Paradox and the known key range. But I still don't believe 130 bits in 2 months 
Don't be fooled that psychology is not part of a very interested organization's toolbox.
130 bits wasn’t solved in two months. It’s just a psychological trick he’s playing on people like JLP and Zielar or many other who also have access to hundreds of GPUs. He’s just playing psychological tricks on them so they won’t work on the higher range and cut down his competitors.