The 19 starting points for backtracking method are:

				S.no	Row	Coloum
 				1	1	1
				2	1	3
				3	2	1
				4	3	1
				5	3	3
				6	3	5
				7	3	6
				8	4	5
				9	5	1
				10	5	3
				11	5	5
				12	5	7
				13	6	1
				14	6	5
				15	7	1
				16	7	5
				17	7	7
				18	8	1
				19	8	6