public void setNumGuess(int lvl) {
        if(lvl == 3) {
            Random rdGen = new Random();
            defaultlvl = rdGen.nextInt(3);
        }
        if(lvl == 0) {
            nGuessLeft = 20;
        }
        else if(lvl == 1) {
            nGuessLeft = 15;
        }
        else if(lvl == 2) {
            nGuessLeft = 10;
        }
    }