Presumably you could test this directly. Have 100 players play a correspondence game against each of the top 3 chess engines, where you gave them a max amount of compute time they could use (say no more than 2 hours per move) and they just play directly against the computer.
My guess is they would have a slight advantage, at least over stockfish, if only by exploiting known bugs/adversarial situations.
Presumably you could test this directly. Have 100 players play a correspondence game against each of the top 3 chess engines, where you gave them a max amount of compute time they could use (say no more than 2 hours per move) and they just play directly against the computer.
My guess is they would have a slight advantage, at least over stockfish, if only by exploiting known bugs/adversarial situations.