def main():
computer = AI(board, board_coordinates)
print ("Welcome to Tic Tac Toe! Player is 'X', CPU is 'O'.")
computer.print_board()
game_won = False
while game_won is False:
if computer.check_board_for_winner():
break
print ("Player's turn...")
computer.get_free_spots()
player_move = int(input("Enter your field number: "))
GPS = computer.coordinates[player_move]
while computer.board[GPS[0]][GPS[1]] != ".":
player_move = int(input("Enter valid field number: "))
GPS = computer.coordinates[player_move]
computer.board[GPS[0]][GPS[1]] = "X"
computer.available_spots.remove(computer.coordinates[player_move])
computer.print_board()
print ("CPU's turn ...")
computer.get_free_spots()
computer.move()
computer.print_board()
game_won = computer.check_board_for_winner()
if computer.get_free_spots() == [] and game_won is False:
print("Round draw.")
break
