Heads-up tournament play requires varying your play and the application of practical psychology, as well as having an intuitive feel for just how much you can extract from your opponent when you know you have the best of it. That’s only half the story. You also have to make sure you lose the least amount possible when your opponent has the best hand. Much of this falls into the art of poker, rather than any measurable, formulaic approach that you can commit to memory and apply in some rote fashion.