private void playGame() {
        System.out.println("Game initialing.......");
        this.initialGame(); 
        System.out.println("Game starting...........");
        System.out.println("> Select Game Mode :");
        System.out.println("  > 1. Normal Mode");
        System.out.println("  > 2. Intellligence Mode");
        System.out.println("  > 3. Exit Game");
        System.out.println("> Please chose mode :)");
        while (true) {
            this.scPress = new Scanner(System.in);
            String input = this.scPress.next();
           
            if (input.equals("1")) {
                this.normalMode();
            }
            else if (input.equals("2")) {
                this.intelligenceMode();
            }
            else if (input.equals("3")) {
                System.out.println("Game Exit !");
                break;
            }
            else {
                System.out.println("Illegal choose, please try again!");
            }
        }      
        System.exit(0);
    }