What hint do you need more than having such amounts which are directly pointing to the exact bit range where the keys reside? It is a game and a test, we play this game and they use our feedback to analyze the system.

Have you missed the recent movements and the signs of improving the old tools to make them faster?
If it wasn't for the latest prize increase, we'd be scratching our heads and using the old stuff without any serious improvements being done.

Don't sit around and wait for others to come up with a solution, try 50 methods, if all of them failed try 50 more, we never achieve anything in life if we stop trying when we hit a dead end, finding a way around it is the challenge and that should be entertaining to find without frustration, don't worry no one is going to collect all the puzzles any time soon, we have time and we need to focus without stressing ourselves.😉