C#-Code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Drunk
{
    class Program
    {
        static void Main(string[] args)
        {
            HashSet<int> Count = new HashSet<int>();
            WalkingGenerator DrunkMan = new WalkingGenerator();
            int Position = 3;
            int number = 0;
            Random Step = new Random();
            Console.WriteLine("Wieviel Durchläufe?");
            int Calcnumber = Convert.ToInt32(Console.ReadLine());
            Console.WriteLine("Calculating");
            for (int j = 0; j < Calcnumber; j++)
            {
                while (DrunkMan.Check(Position))
                {
                    DrunkMan.Walk(ref Position, Step.Next(0, 8));
                    if (Position > 69)
                    {
                        Count.Add(number);
                        number += 1;
                    }
                }
                Position = 3;
            }
            float rate = (float)Count.Count / (Calcnumber/100);
            Console.WriteLine("Der Man hat eine Chance durchzukommen von {0}%", rate);
            Console.ReadLine();
        }
    }
    class WalkingGenerator
    {
        public void Walk(ref int Coord, int Step)
        {
                switch(Step) {
                    case 1:
                        Coord -= 1;
                        break;
                    case 2:
                        Coord += 1;
                        break;
                    case 3:
                        Coord += 7;
                        break;
                    case 4:
                        Coord -= 7;
                        break;
                    case 5:
                        Coord += 6;
                        break;
                    case 6:
                        Coord -= 6;
                        break;
                    case 7:
                        Coord += 8;
                        break;
                    case 0:
                        Coord -= 8;
                        break;
                }
        }
        public bool Check(int Coord)
        {
            if (Coord % 7 == 0 || Coord % 7 == 6 || Coord <= 0 || Coord >= 69)
            {
                return false;
            }
            else
            {
                return true;
            }
        }
    }
}