Click the move when it’s your opponents turns. Safe pre moves are recaptures. If the opponent doesn’t capture a piece, then the move just doesn’t go through.
Ok, so you can't mark an expected enemy move, and if they do that move your move is already pre-made? It is only safe to do pre-moves that can't happen unless they capture you?
It would be nice to set up a couple of if enemy move A, then I do this, if enemy move B then this, etc.
I haven't been able to figure out how pre moves works.