public static string StartGame()
 {
     return
         (string.Concat
          (
              "New game started!\n",
              $"(P1){player1.Mention} vs (P2){player2.Mention}\n",
              TicTacToe.DrawBoard()
          )
         );
 }
        public static string StopPlaying(IGuildUser user)
        {
            if (!GameIsInProgress())
            {
                return(errGameNotInProgress);
            }

            if (!UserIsInGame(user))
            {
                return(errUserNotPlaying);
            }

            player1 = null;
            player2 = null;
            TicTacToe.ResetGame();
            return(sucGameStopped);
        }
 public static void ForceGameRestart()
 {
     player1 = null;
     player2 = null;
     TicTacToe.ResetGame();
 }