[seanhunter]

There are certain moves that players will absolutely call "engine moves". These are usually moves with no discernable purpose (even when calculating deeply) that later on turn out to have been crucial dispite the fact that they don't seem to progress any conventional goal or deal with any current concrete threat. If you analyse a game with Stockfish you'll often see it suggest (say) a calm-looking king move that no human would ever play in the middle of a massive attack but that turns out to resolve some deep positional issue later on.

The clearest example in modern play is a4 and h4 as white (eg early h4 vs the King's Indian Defense) or a5/h5 as black. These are now frequently played in various positions because since they were discovered a few years back by alphazero, they have been extensively examined and found to be good, but prior to that, no strong human would play them.