Since GPU farm is worthless, 71 has almost no chances of being solved this year. Maybe in next years, unless someone is very lucky or the price goes to 200k.
And about withdrawing the funds. Mara is the only option right now, either you trust it or not.
But not impossible. The odds still below 1/1000
If running at least 3 rtx 4080 gpu for 3 months 😅
Better than lottery luck
Someone may have found the key but hid it for fear of it being stolen and not complete the transaction!!!!!
There is no guarantee that Puzzle 71 assets will be transferred safely!??
Perhaps a message could be sent to the victim along with the transfer transaction, asking the kidnappers to please not tamper with the transaction!!!!
The only safe way in my opinion is to find a miner around your area and your friends and acquaintances. There is someone who does the mining work and you can make the transaction directly through him in the next block!