private void initializeBoard()
        {
            int boardSize = r_GameEngine.GetBoardSize();

            for (int i = 0; i < boardSize; i++)
            {
                for (int j = 0; j < boardSize; j++)
                {
                    PictureBoxTile newPictureBoxTile = new PictureBoxTile(new Coordinate(i, j));

                    newPictureBoxTile.Click += tile_Click;
                    Controls.Add(newPictureBoxTile);
                }
            }
        }
        private void tile_Click(object sender, EventArgs e)
        {
            PictureBoxTile clickedTile = sender as PictureBoxTile;
            bool           legalMove   = false;

            if (m_SelectedSoldier != null)
            {
                Move move = new Move(m_SelectedSoldier.Coordinate, clickedTile.Coordinate);

                legalMove = r_GameEngine.TryMove(move);
                if (r_GameEngine.IsGameEnded())
                {
                    OnGameEnded();
                }
            }

            if (!legalMove)
            {
                clickedTile.BlinkRed();
            }
        }