[重点]主攻501627头,主攻381605尾.
1,排除384头,052百,381十,497尾.
2,铁卒:13,18,14,19.
3,三字现:134,139,184,189,140,145,190,195.
4,二定:1XX3,1XX8,6XX3,6XX8,X14X,X19X,X63X,X69X,X3X3,X3X8
5,三定:11X3,11X8.61x3,61X8,16X3,16X8,13X3,13X8,63X3,63X8.
6,直码:1143,1148,1193,1198,6143,6148,6193,6198,1323,1328.