Still unsolved. The private key for this puzzle is an integer between 2^150 and 2^151 − 1, and whoever finds it can sweep 15.10001000 BTC from 13Q84TNNvgcL3HJiqQPvyBb9m4hxjS3jkV.
Only the address is known, so a solver has to walk the interval: multiply the secp256k1 generator by each candidate key, hash the compressed public key with SHA-256 and RIPEMD-160, and compare with the address’s hash160. On average that is 2^149 tests, about 7.14e+44. A single high-end GPU running BitCrack or keyhunt manages roughly a billion tests per second.
Try cracking #151 in your browser How solvers really attack it