public void Ini_DA2()
        {
            for (int x = 0; x < xmax; x++)
            {
                for (int y = 0; y < ymax; y++)
                {
                    Damier[x, y] = null;
                }
            }

            for (int x = 0; x < xmax; x = x + 2)
            {
                for (int y = 0; y < ymax; y = y + 2)
                {
                    int y1 = y + 1;
                    Damier[0, y]  = new pion(false);
                    Damier[1, y1] = new pion(false);
                    Damier[2, y]  = new pion(false);
                    Damier[3, y1] = new pion(false);

                    Damier[6, y]  = new pion(true);
                    Damier[7, y1] = new pion(true);
                    Damier[8, y]  = new pion(true);
                    Damier[9, y1] = new pion(true);
                }
            }
        }
        public void Deplacement()
        {
            Damier[6, 0] = null;
            Damier[5, 1] = new pion(true);

            /*
             * Damier[6, 2] = null;
             * Damier[5, 3] = new pion(true);
             */
        }