use cuda bsgs to find the prikey for address 1MVaBXUsS3M2FWButxMCE9qu1i9MEbZvvZ, and let me know its prikey then I'll narrow it down for everyone
Perfect tip. BSGS using CUDA sounds perfect. Even more so for finding priv key of an address.
Lets use kangaroo on a prefix instead. 3 first characters so only 3 hex digits of privkey and then multiply it times 65. Good plan!