private void grdGame1_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            if (Game.GameIsStarted)
            {
                if (e.Source is Rectangle)
                {
                    if (Game.GameIsStarted)
                    {
                        Rectangle currentrct = (Rectangle)e.Source;
                        int       iLigne     = (int)currentrct.GetValue(Grid.RowProperty);
                        int       iColonne   = (int)currentrct.GetValue(Grid.ColumnProperty);

                        Game.playersMove(turn, iLigne, iColonne);
                        currentrct.Fill = turn == GameCst.O ? O : X;
                        if (turn == GameCst.O)
                        {
                            turn = GameCst.X;
                        }

                        else
                        {
                            turn = GameCst.O;
                        }
                        Game.CheckWinner();
                    }
                }
            }
        }