Here’s a nice miniature by Emanuel Lasker against some consultants from London that illustrates an important trick in the opening. In the popular Italian Game with 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6, White’s 4.Nc3 can be met by 4…Nxe4. The point is that after 5.Nxe4 Black can recover the piece with 5…d5 and get a good game.
This comes as quite a shock to White players who are unaware of this trick, and they can cave in quite rapidly. They would be better off playing 4.d3, but this is another story.
Lasker is probably my favourite player, not just because of his chess but his philosophical insights and depth of thought in all areas. It’s well worth checking out his best known book, Lasker’s Manual of Chess plus the collection of his games by Hannak. There was an introduction to the Hannak book by Albert Einstein, with whom Lasker was friends.