Leibniz is one of the great founders of game theory. He was impassioned by mathematical game problems, he must have been quite a games player himself.Why is it that world which passed into existence? Leibniz explains what is, for him, the creation of worlds by God, and we see well how this is a theory of games: God, in his understanding , conceives an infinity of possible worlds, only these possible worlds are not compossible with each other, and necessarily so since it's God who chooses the best.(ad Gottfried Wilhelm Leibniz)