Choose a number

int round = 1;
        int min = 1;
        int max = 20;
        int number = (int) (Math.random() * (max - min + 1)) + min;
        System.out.println("Chose number between 1 - 20");
        Scanner in = new Scanner(System.in);
        boolean score = false;
        while (!score) {
            String a = in.nextLine();
            int chosen = Integer.parseInt(a);
            if (chosen > number) {
                System.out.println("Less");
                score = false;
                round++;
            }
            if (chosen < number) {
                System.out.println("more");
                score = false;
                round++;
            }
            if (chosen == number) {
                score = true;
            }
        }
        System.out.println("Perfect, You guessed in round: " + round);