Still unsolved. The private key for this puzzle is an integer between 2^149 and 2^150 − 1, and whoever finds it can sweep 15.00001600 BTC from 1MUJSJYtGPVGkBCTqGspnxyHahpt5Te8jy.
The creator published this puzzle’s public key in 2019, which turns the search into a bounded discrete logarithm. Pollard’s kangaroo solves a 150-bit interval in about 2^75 group operations, far fewer than the 2^148 key tests a blind search would need. JeanLucPons’ CUDA Kangaroo is the standard tool; puzzles #130 and #135 were cracked this way by large GPU pools.
Try cracking #150 in your browser How solvers really attack it