Answers for "Eight queens puzzle C#"

Eight queens puzzle C#

using System;
 
 
namespace _8ferz
{
    public class Program
    {
        public int[,] board = new int[8, 8];
        public void resetQ(int i, int j)
        {
            for (int x = 0; x < 8; ++x)
            {
                --board[x, j];
                --board[i, x];
                int k;
                k = j - i + x;
                if (k >= 0 && k < 8)
                    --board[x, k];
                k = j + i - x;
                if (k >= 0 && k < 8)
                    --board[x, k];
            }
            board[i, j] = 0;
        }
 
        public bool tryQ(int i)
        {
            bool result = false;
            for (int j = 0; j < 8; ++j)
            {
                if (board[i, j] == 0)
                {
                    setQ(i, j);
                    if (i == 7)
                        result = true;
                    else
                    {
                        if (!(result = tryQ(i + 1)))
                            resetQ(i, j);
                    }
                }
                if (result)
                    break;
            }
            return result;
        }
 
 
 
        public void setQ(int i, int j)
        {
            for (int x = 0; x < 8; ++x)
            {
                ++board[x, j];
                ++board[i, x];
                int k;
                k = j - i + x;
                if (k >= 0 && k < 8)
                    ++board[x, k];
                k = j + i - x;
                if (k >= 0 && k < 8)
                    ++board[x, k];
            }
            board[i, j] = -1;
        }
     
 
      public static  void Main(string[] args)
        {
            
             Program p=new Program();
            for (int i = 0; i < 8; ++i)
                for (int j = 0; j < 8; ++j)
                    p.board[i, j] = 0;
            p.tryQ(0);
            for (int i = 0; i < 8; ++i)
            {
                for (int j = 0; j < 8; ++j)
                {
                    if (p.board[i, j] == -1)
                        Console.Write("[]");
                    else
                         Console.Write( ". ");
                }
                Console.Write("\n");
              
            }
            Console.ReadKey();
 
        }
 
    }
}