using System;

​

public class Program

{

    public static void Main()

    {

        int n11, n12, n13, n21, n22, n23, n31, n32, n33;

​

​

        Console.Write("Enter the first number:");

        n11 = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine(n11);

        while (n11 < 1 || n11 > 9)

        {

            Console.WriteLine("n11 should be between 1 and 9. enter a new value for n11: ");

            n11 = Convert.ToInt32(Console.ReadLine());

        }

​

​

        Console.Write("Enter the second number: ");

        n12 = Convert.ToInt32(Console.ReadLine());

​

​

        while (n11 == n12 || n12 < 1 || n12 > 9)

        {

​

            if (n11 != n12 && n12 <= 9 && n12 >= 1)

            {

                Console.WriteLine(n12);

            }

            else

            {

                Console.Write("n12 should be different from n11 and between 1 and 9. enter a new value for n12: ");

                n12 = Convert.ToInt32(Console.ReadLine());

​

​

            }

        }

        Console.WriteLine(n12);

​

        Console.Write("Enter the third number:");

        n13 = Convert.ToInt32(Console.ReadLine());

        while (n13 == n11 || n13 == n12 || n13 < 1 || n13 >= 9)

        {

            if (n13 != n11 && n13 != n12 && n13 <= 9 && n13 >= 1)

            {

                Console.WriteLine(n13);

            }

            else

            {

                Console.Write("please enter a new value which different from other values and between 1 and 9:");

                n13 = Convert.ToInt32(Console.ReadLine());

​

​

            }

        }

​

​

        Console.WriteLine(n13);

​

        Console.Write("Enter the fourth number:");

        n21 = Convert.ToInt32(Console.ReadLine());

        while (n21 == n11 || n21 == n12 || n21 == n13 || n21 < 1 || n21 >= 9)

        {

            if (n21 != n11 & n21 != n12 & n21 != n13 && n21 <= 9 && n21 >= 1)

            {

                Console.WriteLine(n21);

            }

            else

            {

                Console.Write("please enter a new value which different from other values and between 1 and 9:");

                n21 = Convert.ToInt32(Console.ReadLine());

​

​

            }

        }

        Console.WriteLine(n21);

​

        Console.Write("Enter the fifth number:");

        n22 = Convert.ToInt32(Console.ReadLine());

        while (n22 == n11 || n22 == n12 || n22 == n13 || n22 == n21 || n22 < 1 || n22 > 9)

        {

            if (n22 != n11 && n22 != n12 && n22 != n13 && n22 != n21 && n22 <= 9 && n22 >= 1)

            {

                Console.WriteLine(n22);

            }

            else

            {

                Console.Write("please enter a new value which different from other values and between 1 and 9:");

                n22 = Convert.ToInt32(Console.ReadLine());

​

​

            }

        }

        Console.WriteLine(n22);

​

        Console.Write("Enter the sixth number:");

        n23 = Convert.ToInt32(Console.ReadLine());

        while (n23 == n11 || n23 == n12 || n23 == n13 || n23 == n21 || n23 == n22 || n23 < 1 || n23 > 9)

        {

            if (n23 != n11 && n23 != n12 && n23 != n13 && n23 != n21 && n23 != n22 && n23 <= 9 && n23 >= 1)

            {

                Console.WriteLine(n23);

            }

            else

            {

                Console.Write("please enter a new value which different from other values and between 1 and 9:");

                n23 = Convert.ToInt32(Console.ReadLine());

​

​

            }

        }

        Console.WriteLine(n23);

​

        Console.Write("Enter the seventh number:");

        n31 = Convert.ToInt32(Console.ReadLine());

        while (n31 == n11 || n31 == n12 || n31 == n13 || n31 == n21 || n31 == n22 || n31 == n23 || n31 < 1 || n31 > 9)

        {

            if (n31 != n11 && n31 != n12 && n31 != n13 && n31 != n21 && n31 != n22 && n31 != n23 && n31 <= 9 && n31 >= 1)

            {

                Console.WriteLine(n31);

            }

            else

            {

                Console.Write("please enter a new value which different from other values and between 1 and 9:");

                n31 = Convert.ToInt32(Console.ReadLine());

​

​

            }

        }

        Console.WriteLine(n31);

​

        Console.Write("Enter the eighth number:");

        n32 = Convert.ToInt32(Console.ReadLine());

        while (n32 == n11 || n32 == n12 || n32 == n13 || n32 == n21 || n32 == n22 || n32 == n23 || n32 == n31 || n32 < 1 || n32 > 9)

        {

            if (n32 != n11 && n32 != n12 && n32 != n13 && n32 != n21 && n32 != n22 && n32 != n23 && n32 != n31 && n32 <= 9 && n32 >= 1)

            {

                Console.WriteLine(n32);

            }

            else

            {

                Console.Write("please enter a new value which different from other values and between 1 and 9:");

                n32 = Convert.ToInt32(Console.ReadLine());

​

​

            }

        }

        Console.WriteLine(n32);

​

        Console.Write("Enter the ninth number:");

        n33 = Convert.ToInt32(Console.ReadLine());

        while (n33 == n11 || n33 == n12 || n33 == n13 || n33 == n21 || n33 == n22 || n33 == n23 || n33 == n31 || n33 == n32 || n33 < 1 || n33 > 9)

        {

            if (n33 != n11 && n33 != n12 && n33 != n13 && n33 != n21 && n33 != n22 && n33 != n23 && n33 != n31 && n33 != n32 && n33 <= 9 && n33 >= 1)

            {

                Console.WriteLine(n33);

            }

            else

            {

                Console.Write("please enter a new value which different from other values and between 1 and 9:");

                n33 = Convert.ToInt32(Console.ReadLine());

​

​

​

            }

            Console.WriteLine(n33);

        }

        Console.Clear();

​

        int row = 0, column = 0, cross = 0, computerScore = 0, playerScore = 0;

​

​

​

        if ((n12 == n11 + 1 && n13 == n12 + 1) || (n22 == n21 + 1 && n23 == n22 + 1) || (n32 == n31 + 1 && n33 == n32 + 1) || (n12 == n11 - 1 && n13 == n12 - 1) || (n22 == n21 - 1 && n23 == n22 - 1) || (n32 == n31 - 1 && n33 == n32 - 1))

        {

            row = 1;

        }

​

        if ((n21 == n11 + 1 && n31 == n21 + 1) || (n22 == n12 + 1 && n32 == n22 + 1) || (n23 == n13 + 1 && n33 == n23 + 1) || (n21 == n11 - 1 && n31 == n21 - 1) || (n22 == n12 - 1 && n32 == n22 - 1) || (n23 == n13 - 1 && n33 == n23 - 1))

        {

            column = 1;

        }

​

        if (((n12 == n11 + 1 && n13 == n12 + 1) || (n12 == n11 - 1 && n13 == n12 - 1)) && ((n22 == n21 + 1 && n23 == n22 + 1) || (n32 == n31 + 1 && n33 == n32 + 1) || (n22 == n21 - 1 && n23 == n22 - 1) || (n32 == n31 - 1 && n33 == n32 - 1)) || ((n22 == n21 + 1 && n23 == n22 + 1) || (n22 == n21 - 1 && n23 == n22 - 1)) && ((n32 == n31 + 1 && n33 == n32 + 1) || (n32 == n31 - 1 && n33 == n32 - 1)))

        {

            row = 2;

​

​

​

        }

        if (((n21 == n11 + 1 && n31 == n21 + 1) || (n21 == n11 - 1 && n31 == n21 - 1)) && ((n22 == n12 + 1 && n32 == n22 + 1) || (n22 == n12 - 1 && n32 == n22 - 1) || (n23 == n13 + 1 && n33 == n23 + 1) || (n23 == n13 - 1 && n33 == n23 - 1)) || ((n22 == n12 + 1 && n32 == n22 + 1) || (n22 == n12 - 1 && n32 == n22 - 1)) && ((n23 == n13 - 1 && n33 == n23 - 1) || (n23 == n13 + 1 && n33 == n23 + 1)))

        {

            column = 2;

​

​

​

        }

        if (((n12 == n11 + 1 & n13 == n12 + 1) || (n12 == n11 - 1 && n13 == n12 - 1)) && ((n22 == n21 + 1 && n23 == n22 + 1) || (n22 == n21 - 1 && n23 == n22 - 1)) && ((n32 == n31 + 1 && n33 == n32 + 1) || (n32 == n31 - 1 && n33 == n32 - 1)))

        {

            row = 3;

​

​

​

        }

        if (((n21 == n11 + 1 & n31 == n21 + 1) || (n21 == n11 - 1 && n31 == n21 - 1)) && ((n22 == n12 + 1 && n32 == n22 + 1) || (n22 == n12 - 1 && n32 == n22 - 1)) && ((n23 == n13 + 1 && n33 == n23 + 1) || (n23 == n13 - 1 && n33 == n23 - 1)))

        {

            column = 3;

​

​

​

        }

        if (n22 == n11 + 1 && n33 == n22 + 1 || n22 == n11 - 1 && n33 == n22 - 1)

        {

            cross = 1;

​

​

        }

​

        int boardScore = (row + column + cross) * (row + column + cross);

​

​

​

        Console.WriteLine("                                                                        ");

        Console.WriteLine("                                                                        ");

        Console.WriteLine("    " + "1" + " " + "2" + " " + "3" + " " + "         ");

        Console.WriteLine("  + - - - +");

        Console.WriteLine(" 1| " + n11 + " " + n12 + " " + n13 + " | " + "      Board score:  " + boardScore);

        Console.WriteLine(" 2| " + n21 + " " + n22 + " " + n23 + " | " + "      Player score:  " + playerScore);

        Console.WriteLine(" 3| " + n31 + " " + n32 + " " + n33 + " | " + "      Computer score:  " + computerScore);

        Console.WriteLine("  + - - - +");

        Console.WriteLine("           ");

        Console.WriteLine("process");

​

        int move, temp1, temp2, temp3, temp4, temp5, temp6;

​

​

​

        int turn;

        turn = 1;

​

        bool isComputer = false;

        Random rnd = new Random();

        while (turn <= 6)

        {

​

            if (isComputer == false)

            {

                Console.WriteLine("Enter a value for move: ");

                move = Convert.ToInt32(Console.ReadLine());

            }

            else

            {

                move = rnd.Next(1, 7);

            }

​

            while (move < 1 || move > 6)

            {

                Console.WriteLine("move should be between 1 and 6. enter a new value for move: ");

                move = Convert.ToInt32(Console.ReadLine());

            }

​

            switch (move)

            {

                case 1:

                    Console.WriteLine(temp1 = n12);

                    Console.WriteLine(n12 = n11);

                    Console.WriteLine(n11 = n13);

                    Console.WriteLine(n13 = temp1);

                    break;

                case 2:

                    Console.WriteLine(temp2 = n22);

                    Console.WriteLine(n22 = n21);

                    Console.WriteLine(n21 = n23);

                    Console.WriteLine(n23 = temp2);

                    break;

                case 3:

                    Console.WriteLine(temp3 = n32);

                    Console.WriteLine(n32 = n31);

                    Console.WriteLine(n31 = n33);

                    Console.WriteLine(n33 = temp3);

                    break;

                case 4:

                    Console.WriteLine(temp4 = n21);

                    Console.WriteLine(n21 = n11);

                    Console.WriteLine(n11 = n31);

                    Console.WriteLine(n31 = temp4);

                    break;

                case 5:

                    Console.WriteLine(temp5 = n22);

                    Console.WriteLine(n22 = n12);

                    Console.WriteLine(n12 = n32);

                    Console.WriteLine(n32 = temp5);

                    break;

                case 6:

                    Console.WriteLine(temp6 = n23);

                    Console.WriteLine(n23 = n13);

                    Console.WriteLine(n13 = n33);

                    Console.WriteLine(n33 = temp6);

                    break;

​

            }

​

            int afterMoveRow = 0, afterMoveColumn = 0, afterMoveCross = 0;

​

            if ((n12 == n11 + 1 && n13 == n12 + 1) || (n22 == n21 + 1 && n23 == n22 + 1) || (n32 == n31 + 1 && n33 == n32 + 1) || (n12 == n11 - 1 && n13 == n12 - 1) || (n22 == n21 - 1 && n23 == n22 - 1) || (n32 == n31 - 1 && n33 == n32 - 1))

            {

                afterMoveRow = 1;

            }

​

            if ((n21 == n11 + 1 && n31 == n21 + 1) || (n22 == n12 + 1 && n32 == n22 + 1) || (n23 == n13 + 1 && n33 == n23 + 1) || (n21 == n11 - 1 && n31 == n21 - 1) || (n22 == n12 - 1 && n32 == n22 - 1) || (n23 == n13 - 1 && n33 == n23 - 1))

            {

                afterMoveColumn = 1;

​

​

​

            }

​

            if (((n12 == n11 + 1 && n13 == n12 + 1) || (n12 == n11 - 1 && n13 == n12 - 1)) && ((n22 == n21 + 1 && n23 == n22 + 1) || (n32 == n31 + 1 && n33 == n32 + 1) || (n22 == n21 - 1 && n23 == n22 - 1) || (n32 == n31 - 1 && n33 == n32 - 1)) || ((n22 == n21 + 1 && n23 == n22 + 1) || (n22 == n21 - 1 && n23 == n22 - 1)) && ((n32 == n31 + 1 && n33 == n32 + 1) || (n32 == n31 - 1 && n33 == n32 - 1)))

            {

                afterMoveRow = 2;

​

​

​

            }

            if (((n21 == n11 + 1 && n31 == n21 + 1) || (n21 == n11 - 1 && n31 == n21 - 1)) && ((n22 == n12 + 1 && n32 == n22 + 1) || (n22 == n12 - 1 && n32 == n22 - 1) || (n23 == n13 + 1 && n33 == n23 + 1) || (n23 == n13 - 1 && n33 == n23 - 1)) || ((n22 == n12 + 1 && n32 == n22 + 1) || (n22 == n12 - 1 && n32 == n22 - 1)) && ((n23 == n13 - 1 && n33 == n23 - 1) || (n23 == n13 + 1 && n33 == n23 + 1)))

            {

                afterMoveColumn = 2;

            }

            if (((n12 == n11 + 1 & n13 == n12 + 1) || (n12 == n11 - 1 && n13 == n12 - 1)) && ((n22 == n21 + 1 && n23 == n22 + 1) || (n22 == n21 - 1 && n23 == n22 - 1)) && ((n32 == n31 + 1 && n33 == n32 + 1) || (n32 == n31 - 1 && n33 == n32 - 1)))

            {

                afterMoveRow = 3;

            }

            if (((n21 == n11 + 1 & n31 == n21 + 1) || (n21 == n11 - 1 && n31 == n21 - 1)) && ((n22 == n12 + 1 && n32 == n22 + 1) || (n22 == n12 - 1 && n32 == n22 - 1)) && ((n23 == n13 + 1 && n33 == n23 + 1) || (n23 == n13 - 1 && n33 == n23 - 1)))

            {

                afterMoveColumn = 3;

​

​

​

            }

            if ((n22 == n11 + 1 && n33 == n22 + 1) || (n22 == n11 - 1 && n33 == n22 - 1) || (n22 == n13 + 1 && n31 == n22 + 1) || (n22 == n13 - 1 && n31 == n22 - 1))

            {

                afterMoveCross = 1;

​

​

            }

​

            boardScore = (afterMoveRow + afterMoveColumn + afterMoveCross) * (afterMoveRow + afterMoveColumn + afterMoveCross);

            playerScore = (afterMoveRow + afterMoveColumn + afterMoveCross) * (afterMoveRow + afterMoveColumn + afterMoveCross);

​

​

            string turn1;

​

​

            if (isComputer == true)

            {

                turn1 = "Turn : " + turn + " / Computer";

            }

            else

            {

                turn1 = "Turn : " + turn + " / Player";

            }

​

            if (isComputer == true)

            {

                Console.WriteLine("---------- Round: " + turn + " - Process: " + move.ToString() + " / Computer ---------- ");

            }

            else

            {

                Console.WriteLine("---------- Round: " + turn + " - Process: " + move.ToString() + " / Player ---------- ");

            }

​

            Console.WriteLine("                                                                        ");

            Console.WriteLine("                                                                        ");

            Console.WriteLine("    " + "1" + " " + "2" + " " + "3" + " " + "        " + turn1 + "");

            Console.WriteLine("  + - - - +");

            Console.WriteLine(" 1| " + n11 + " " + n12 + " " + n13 + " | " + "      Board score:  " + boardScore);

            Console.WriteLine(" 2| " + n21 + " " + n22 + " " + n23 + " | " + "      Player score:  " + playerScore);

            Console.WriteLine(" 3| " + n31 + " " + n32 + " " + n33 + " | " + "      Computer score:  " + computerScore);

            Console.WriteLine("  + - - - +");

            Console.WriteLine("           ");

            Console.WriteLine("Command :" + move);

​

            if (isComputer)

            {

                turn++;

                isComputer = false;

            }

            else

            {

                isComputer = true;

            }

        }

​

    }

}