Chess is a more highly symbolic game, but the aggressions are therefore even more frankly represented in the play. It probably began as a war game; that is, the representation of a miniature battle between the forces of two kingdoms
Karl A. MenningerWe have come to see that just as the child must learn to love wisely, so he must learn to hate expeditiously, to turn destructive tendencies away from himself toward enemies that actually threaten him rather than toward the friendly and the defenseless, the more usual victims of destructive energy.
Karl A. Menninger