def main(): start_game(progression)
def main(): start_game(calc.INTRO, calc.make_puzzle, calc.make_solution)
def main(): start_game(HINT, is_even)
def main(): start_game(even)
def main(): start_game(HINT, get_calc)
def main(): greet() start_game(prime)
def main(): start_game(HINT, get_progression)
def main(): start_game( progression.INTRO, progression.make_puzzle, progression.make_solution, )
def main(): greet() start_game(gcd)
def main(): start_game(HINT, get_prime)
def main(): start_game(HINT, get_gcd)
def main(): greet() start_game(progression)
def main(): start_game(even.INTRO, even.make_puzzle, even.make_solution)
def main(): start_game(gcd.INTRO, gcd.make_puzzle, gcd.make_solution)
def main(): start_game(prime.INTRO, prime.make_puzzle, prime.make_solution)
def main(): start_game(prime)
def main(): start_game(calc)
def main(): greet() start_game(even)
def main(): start_game(gcd)
def main(): greet() start_game(calc)