private void BtnGuessNhor_Click(object sender, EventArgs e)
        {
            int minNhor = Convert.ToInt32(txbMinNumberNhor.Text);
            int maxNhor = Convert.ToInt32(txbMaxNumberNhor.Text);

            try
            {
                lblAnswerPrevGuessNhor.Text = guessNhor.ToString();

                answerNhor = Convert.ToInt32(lblAnsMysNumNhor.Text);
                guessNhor = Convert.ToInt32(txbMyGuessNhor.Text);
            }
            catch (Exception)
            {
                MessageBox.Show("Please fill in numbers");
            }

            if (guessNhor == answerNhor)
            {
                //play audio
                mciSendString("open \"" + Application.StartupPath
                      + "\\..\\..\\Music\\"
                      + "zapsplat_multimedia_game_sound_mallet_positive_advance_003_40873.mp3\" "
                      + "type mpegvideo alias MediaFile",
               null, 0, IntPtr.Zero);
                mciSendString("play MediaFile", null, 0, IntPtr.Zero);

                attemptsWinNhor++;
                DialogResult = MessageBox.Show("You won! \nwins/losses: " + attemptsWinNhor + "/" + attemptsLoseNhor + "\nPlay again? ", "Winner", MessageBoxButtons.YesNo);

            }
            else if (guessNhor < answerNhor)
            {
                differenceNhor = answerNhor - guessNhor;
            }
            else if (guessNhor > answerNhor)
            {
                differenceNhor = guessNhor - answerNhor;
            }

            trbNhor.Maximum = maxNhor;
            trbNhor.Value = (maxNhor - differenceNhor);

            if (guessNhor < minNhor || guessNhor > maxNhor)
            {
                MessageBox.Show("Guessed number not between the min and max number");
            }
            pgbGuessesNhor.Value--;
            lblAnswerLeftNhor.Text = pgbGuessesNhor.Value.ToString();
            if (pgbGuessesNhor.Value == 0)
            {
                //play audio
                mciSendString("open \"" + Application.StartupPath
                      + "\\..\\..\\Music\\"
                      + "zapsplat_multimedia_game_sound_mallet_fall_descend_002_40840.mp3\" "
                      + "type mpegvideo alias MediaFile",
               null, 0, IntPtr.Zero);
                mciSendString("play MediaFile", null, 0, IntPtr.Zero);

                attemptsLoseNhor++;
                DialogResult = MessageBox.Show("Game over!\nthe answer was " + lblAnsMysNumNhor.Text + "\nwins/losses: " + attemptsWinNhor + "/" + attemptsLoseNhor + "\nPlay Again?", "Loser", MessageBoxButtons.YesNo);
            }
            lblAnsDiffNhor.Text = differenceNhor.ToString();

            if (DialogResult == DialogResult.Yes)
            {
                RestartNhor();
            }
            else if (DialogResult == DialogResult.No)
            {
                this.Close();
            }


        }