antonegas

class Elo:
    def __init__(self, rating: float = 1000.0):
        self.rating = rating

    def _expected(self, other: Elo) -> float:
        """
        Calculates the expected outcome when playing against an other player.
        """
        magic_number = 1.0 / 400.0
        q1 = 10**(self.rating * magic_number)