public String toStringPositionPossible()
	{
		// affiche le tableau des positions possible les & represente les cases possibles
		
		int cpt = 0;
		StringBuffer res = new StringBuffer("");
		
		for (int i = 0; i < 8; i++)
			for (int j = 0; j < 8; j++)
			{
				if (cpt == 8)
					cpt = 0;
				cpt++;
				res.append(PositionPossible[i][j]);
			}
		
		return res.toString();
	}