When I ask my students about the opponent's weaknesses in this position, they often correctly identify the pawn on d6 (one attacker, one defender) and the knight on e7 (due to the battery on the e-file). But they have a hard time finding the strong move Lasker played:
As soon as I saw the move on the board, it made perfect sense. But my friend (who is also a master) and I hadn't predicted it while quickly playing through the game solitaire chess. I think this is a perfect example of a strong positional forcing move.