public static void Main()
TicTacToe ticTacToe= new TicTacToe();
public class TicTacToeField
public string[] values = {"1", "2", "3", "4", "5", "6", "7", "8", "9",};
for (int i = 0; i < values.Length; i++)
Console.Write(values[i]);
public string currentPlayer = "X";
TicTacToeField playfield = new TicTacToeField();
Console.WriteLine("Name player X:");
Console.WriteLine("Name player O:");
if (currentPlayer == "X")
Console.WriteLine(pX + " may choose a location for X:");
int fieldNumber = GetFieldNumber();
Console.WriteLine(pO + "may choose a location for O:");
string input = Console.ReadLine();
bool isNumber = int.TryParse(input, out fieldNumber);
Console.WriteLine(pX + "Give a valid answer:");