The chess game is a battle, Napoleon first of a battle studied the psychology and the knowledge of his enemy , to understand his plan. In fact , for his time, he was also a good chess player.
When we play a game, we should understand also the enemy ideas to play well.
Some years ago, I played against a strong fide master in the last round of a tournament , I knew that his style was very aggressive and that he thought at only a result, the victory.
For this reason , I played defensive and my strategy was awarded.