[重点]主攻160927头,主攻271605尾.
1,排除385头,381百,168十,389尾.
2,铁卒:32,37,82,87.
3,三字现:320,325,370,375,820,825,870,875.
4,二定:1XX0,1XX5,6XX0,6XX5,XX20,XX25,XX70,XX75,1X7X,1X2X
5,三定:13X0,13X5.18x0,18X5,63X0,63X5,68X0,68X5,1X20,1X25.
6,直码:1320,1325,1370,1375,1820,1825,1870,1875,6320,6325.