public IActionResult GuessingGame(int guess)
        {
            string message     = "";
            int    luckyNumber = 0;
            int    nrOfGuesses = 0;


            if (guess != 0) //when choosen a nr between 1 and 100
            {
                //try to get luckynr from session and nrOfGuesses from cookie
                try
                {
                    luckyNumber = (int)HttpContext.Session.GetInt32("LuckyNumber");
                    string cookieNrOfGuesses = Request.Cookies["NrOfGuesses"];
                    nrOfGuesses = Int32.Parse(cookieNrOfGuesses) + 1;

                    //check if correct
                    message = GuessingGameUtility.Guess(guess, luckyNumber, nrOfGuesses);
                }
                catch (Exception)
                {
                    //if exception like timing out session/cookie: restart game
                    message = "Unfortenately the game is restarted, guess a new number!";
                }
            }
            else //when not choosen any nr
            {
                message = "Guess a number before pressing Guess!";
            }
            //if winner or if restart is needed
            if (
                message.Contains("Congrat") ||
                message.Contains("Unfort") ||
                message.Contains("pressing")
                )
            {
                TempData["message"] = message;
                return(RedirectToAction("GuessingGame"));
                //restart game with new random nr and reset nrOfGuesses

                /*luckyNumber = GuessingGameUtility.GetNewRandom();
                 * HttpContext.Session.SetInt32("LuckyNumber", luckyNumber);
                 * nrOfGuesses = 0;*/
            }

            //set cookie with nrOfGuesses
            CookieOptions option = new CookieOptions();

            option.Expires = DateTime.Now.AddMinutes(1);
            Response.Cookies.Append("NrOfGuesses", nrOfGuesses.ToString(), option);

            //information to view
            ViewBag.NrOfGuesses = nrOfGuesses;
            ViewBag.message     = message;
            //ViewBag.LuckyNumber = luckyNumber;

            return(View());
        }