【重点】百位764198,十位786920.
1、排除178头,035百,143十,尾896
2、铁卒:17、19、27、15.
3、三字现:236,689,389,035,015,145,578,678
4、二定位2XX7 2X2X 9X9X 9X7X XX85 9XX0 5XX2 5X8X X99X X4X2 5X2X 49XX 4X6X XX92 9X8X X7X2 X68X
5、三定位:378X,X483,X173,94X0,X922,X685,31X0,948X,X785,X697,21X5,4X22,446X,94X7,