【重点】百位817609,十位398715.
1、排除398头,523百,642十,尾714
2、铁卒:57、69、15、17.
3、三字现:347,128,389,049,138,689,046,459
4、二定位2XX8 78XX 5X7X 50XX 0XX6 X1X8 07XX X68X 6XX6 XX32 X19X 0XX2 26XX 2X8X X07X 56XX 71XX 7X7X X8X8 X61X
5、三定位:X893,X673,50X2,78X6,68X6,X832,X779,78X9,60X9,71X6,07X3,58X3,08X3,