with ki 0.1

using System;

namespace ConsoleApp1
{
    class Program
    {
        private static bool isPlayerOneTurn = true;

        public static string[] FieldsValues = new string[] { " ", " ", " ", " ", " ", " ", " ", " ", " ", };
        public static readonly string CharacterPlayerOne = "X",
            CharacterPlayerTwo = "O";
        public static int OccupiedFieldsCount = 0;

        static void Main(string[] args)
        {
            while (true)
            {
                Console.WriteLine("Willkommen bei TicTacToe");
                Console.WriteLine("Welchen Spielmodus möchtest du spielen?:");
                Console.WriteLine("[1] Spieler vs Spieler");
                Console.WriteLine("[2] Spieler vs Computer");

                string input = Console.ReadLine();
                if (input == "1")
                    TicTacToe.PlayerVSPlayerMode();
                else if (input == "2")
                    TicTacToe.PlayerVSComputerMode();
                else
                    continue;

                Console.WriteLine("Möchtest du nocheinmal Spielen? [1] Ja | [2] Beenden");
                if (Console.ReadLine() != "1")
                    break;
            }
        }
    }
}