Sadly, the reason PoW works as a way to provide a trustless system that functions as long as 51% of the power is neutral, the solution has to be completely rand

Sadly, the reason PoW works as a way to provide a trustless system that functions as long as 51% of the power is neutral, the solution has to be completely random and unpredictable. Otherwise the operator with the most powerful rig would outperform everyone else often enough for the system to be susceptible to bad actors. It is not sufficient for the PoW just to be extremely hard.